Готові списки джерел за темами / Steel wire rod

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Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Steel wire rod"

1

David, Felipe Farage, Sayd Farage David, Renan Carreiro Rocha, and Ricardo Arthur Sanguinetti Ferreira. "Effect of Controlled Cooling after Hot Rolling on the Mechanical Properties of a Low Carbon Niobium Microalloyed Steel Wire Rod." Materials Science Forum 930 (September 2018): 333–38. http://dx.doi.org/10.4028/www.scientific.net/msf.930.333.

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Анотація:
The wire rod has high relevance due to its wide application as a raw material for steel wire and wire processed in cold rolling mills and drawing. The control of process variables, such as cooling rate, coiling temperature, rolling speed is essential for obtaining the microstructures and therefore mechanical properties of the material. The purpose of this work is to study the behavior of the microstructure and mechanical properties with the variation of thermomechanical treatment in the hot rolling of wire rod. The steels used in this study were the microalloyed niobium steel equivalent to ASTM A913 grade 50 and carbon steel equivalent to ASTM A510 grade 1013. Despite the carbon steel has higher equivalent carbon to microalloyed steel, was found higher yield strength (σe) in the microalloyed niobium steel. Thus, by applying appropriate thermomechanical treatment in microalloyed steel is possible to improve mechanical properties mainly due to grain refining.
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2

Chen, Changyong, Meng Sun, Bao Wang, Jianan Zhou, and Zhouhua Jiang. "Recent Advances on Drawing Technology of Ultra-Fine Steel Tire Cord and Steel Saw Wire." Metals 11, no. 10 (October 6, 2021): 1590. http://dx.doi.org/10.3390/met11101590.

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Анотація:
Steel tire cord and steel saw wire represent typical precision pearlitic steel wire rods of wire products; it is a very important solar energy material with a diameter about 50 μm. This paper mainly discusses the research progress of the wire rod drawing process, and its main contents are as follows: First section—the control of the wire rod surface quality is summarized, including the thickness of the surface decarburization layer, the phase composition and thickness of the surface iron oxide scale, and the removal of surface iron oxide scale. Then, the research progress of the wire rod water bath treatment process during sorbitization is summarized. In addition, the development of brass plating technology for steel wire is summarized, including copper plating technology, coating phase composition, etc. Furthermore, the development of steel wire drawing methods is summarized. Finally, the development of the dies used in steel wire drawings is summarized.
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3

Fetisov, V. P. "Controlling the drawability of carbon steel wire rod." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 3 (September 10, 2021): 61–64. http://dx.doi.org/10.21122/1683-6065-2021-3-61-64.

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Анотація:
The author proposed an indicator of the deformation capacity of carbon steel wire rod, which took into account the tendency of the metal to hardening and the general level of plastic properties, and determined technological approaches to the designation of the optimal total reduction before intermediate heat treatment by drawing low carbon wire rod and wire rod for metal cord.
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4

Kwiecień, M., P. Graca, K. Muszka, and J. Majta. "Selected Problems of the Microstructure Evolution During Microalloyed Steel Wire Rod Production Process." Archives of Metallurgy and Materials 62, no. 2 (June 1, 2017): 899–904. http://dx.doi.org/10.1515/amm-2017-0132.

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Анотація:
Abstract In the present study, we have discussed the selected problems of microstructure development during the whole manufacturing process, i.e. continuous casting, thermomechanical processing, and cold metal forming of the microalloyed steels wires. In the investigated steels, the microstructure development was controlled by the history of deformation and by the effects of microalloying elements, mostly Nb, Ti, and B. It has been concluded that obtained in the ultrafine grained microalloyed steel wires mechanical properties were first of all resulting from specific structural composition and grain refinement. Additionally, it has been proven that austenite grain refinement, that increases nucleation rate during the austenite-to-ferrite phase transformation, as a result of the thermomechanical processing, are very beneficial from point of view of the final mechanical properties. This problem starts to be very important when the microalloyed steel products are subjected to severe plastic deformation, as it has been shown discussed in the present work for combined processes of wire drawing and wire flattening.
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5

Xu, Xiang Jun, and Jun Qi Kong. "Study on Cooling Process of Hot Rolled Wire Rod with Dual Phase Microstructure." Advanced Materials Research 415-417 (December 2011): 779–83. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.779.

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Анотація:
In the present paper effect of post deformation cooling rates on microstructure of ER70S-6 steel was investigated by using Gleeble1500 simulator. From the results, a controlling cooling process for obtaining dual phase (DP) microstructure was designed to produce hot rolled wire rod with a diameter of 6.5mm in a continuous no-twist and high-speed wire rolling mill, and the microstructures and the tensile properties of the wire rod were analyzed. The results showed that ER70S-6 steel deformed at 845°C and cooled at a rate of faster than 10°C/s had a DP microstructure with grain size of less than 8.3μm and martensitic volume fraction of 9-11%. The hot rolled wire rod cooled by blowing air had a DP microstructure with a grain size of 8.2μm and martensitic volume fraction of 11.5%. The present wire rod was superior to that of the same steel with ferrite plus pearlite microstructure in tensile properties, with yield strength level of 335-345MPa, ultimate tensile strength level of 600-620MPa, plastic elongation of 26.5-31.5% and strain hardening exponent of 0.221, respectively. ER70S-6 steel wire rod with DP microstructure showed promise of meeting the requirements for grade 8.8 fastener.,In the present paper steel wire rod with DP microstructure showed promise of meeting the requirements for grade 8.8 fastener.
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6

Ackermann, Marc, Bernard Resiak, Pascal Buessler, Bertrand Michaut, Jean-Christophe Hell, Silvia Richter, James Gibson, and Wolfgang Bleck. "Methods to Classify Bainite in Wire Rod Steel." steel research international 92, no. 1 (October 25, 2020): 2000454. http://dx.doi.org/10.1002/srin.202000454.

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7

Cao, Shu Wei, Yong Lin Kang, Xin Jiang Wang, and Qi Hang Han. "Development of Low-Cost LX70A Rod for Steel Cord." Advanced Materials Research 239-242 (May 2011): 2474–78. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.2474.

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Анотація:
Steel cord has the higher technical requirement in the production of wire rod. And the higher requirement of the structure uniformity brings about the more difficulty for producing wire rod. Therefore, the procedure of rod for steel cord has been studied at Anyang Iron & Steel Group Co., Ltd. It has been investigated the low-cost production process, inclusion control, composition segregation, chemical composition control, structure performance control and application of LX70A rod for steel cord. The present research has significant value for the application of similar products.
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8

Zeng, Jian Hua, Yi Chang Li, Zheng Zhou, and Jun Chen. "Effect of Hot-Rolling Parameters on Microstructure and Mechanical Properties of 72LXA Steel Wire Rod." Advanced Materials Research 581-582 (October 2012): 842–46. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.842.

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Анотація:
Effect of the laying head temperature and controlled cooling process on microstructure and mechanical properties of 72LXA wire rod were investigated．The results show that under the same cooling process，with the raising laying temperature and increasing sorbitizing rate and decreasing proeutectoid ferrite，the steel rod strength is improving，proeutectoid ferrite and sorbitizing rate are the critical impact factors on steel rod properties；indentifying cooling after perlite forming can restrain the dissolve of lamellar cementite；the mechanical properties of whole rod coil are improved by the proper rolling rate and air cooling．The high strength of 1050 MPa of steel rod was obtained，that shows the defined hot rolling process can conform to the steel rod properties requirement．
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9

Wallace, Andrew, Allan Brownrigg, Peter D. Hodgson, Leo Frawley, and Warwick Heath. "Optimisation of V/N Ratios and Stelmor Cooling for Electric Arc Furnace Steels Used in Galvanised High Tensile Strength Wire Applications." Materials Science Forum 500-501 (November 2005): 745–52. http://dx.doi.org/10.4028/www.scientific.net/msf.500-501.745.

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Анотація:
The high level of residual nitrogen in Electric Arc Furnace (EAF) steels is one of the major factors influencing the performance of the finished product. For high tensile strength galvanised wire applications, nitrogen in interstitial solid solution can severely limit drawability and formability. This problem can be controlled simply and effectively by adding nitride-forming elements to the molten steel so that the nitrogen is removed from solution. Vanadium additions are especially beneficial in high strength steels because the removal of nitrogen as vanadium-nitride can cause extensive precipitation strengthening. This investigation concerns commercial grade steels microalloyed with vanadium and rolled to 5.5mm rod, under controlled Stelmor cooling conditions. This rod is used to produce 2.5mm high tensile strength galvanised wire. The aim of the research was to determine the optimum vanadium/nitrogen (V/N) ratio and Stelmor cooling profile for the vanadium steel rod. This was achieved by extensive production and laboratory trials followed by mechanical and microstructural analyses of the product.
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10

Suliga, M., R. Wartacz, and J. Michalczyk. "The Influence of the Angle of the Working Part of the Die on the High Speed Drawing Process of Low Carbon Steel Wires." Archives of Metallurgy and Materials 62, no. 2 (June 1, 2017): 483–87. http://dx.doi.org/10.1515/amm-2017-0073.

Повний текст джерела
Анотація:
Abstract The paper contains the theoretical and experimental analysis of the impact of the drawing angle on the drawing process and the properties of low carbon steel wires. A multi-stage drawing wire rod with a diameter of 5.5 mm on a wire with a diameter of 1.0 mm has been carried out in two stages. The first one consisted of preliminary drawing wire rod for the wire with a diameter of 2.2 mm which was next subjected to the drawing process at a speed of 25 m/sec at the final wire with a diameter of 1.0 mm. The wires were drawn in conventional dies with drawing angle α = 3, 4, 5, 6, 7 degrees. For the wires drawn in respective variants, the investigation of the mechanical properties was performed and the amount of lubricant on the surface of steel wires was determined. Numerical analysis of the process of drawing in the Drawing 2D complemented the experimental studies. It has been shown that when drawing at high speeds, properly chosen the value of the angle of the working part of the die can improve the lubrication conditions and mechanical properties of steel wires.
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Більше джерел

Дисертації з теми "Steel wire rod"

1

Gillström, Peter. "Alternatives to pickling; preparation of carbon and low alloyed steel wire rod /." Örebro : Örebro universitetsbibliotek, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-376.

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2

Campbell, Peter Cameron. "Application of microstructural engineering to the controlled cooling of steel wire rod." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/29065.

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Анотація:
The concept of microstractural engineering has been applied to Stelmor cooling of steel wire rod. The Stelmor process is situated immediately following the rod mill and utilizes forced air to cool steel rod from the rolling temperature, through austenite transformation, down to a temperature suitable for handling. A mathematical model has been developed for the prediction of the mechanical properties of the steel rod as a function of cooling parameters in the process and steel composition. The model is based on one-dimensional heat conduction within the rod and is limited to plain-carbon eutectoid and hypoeutectoid steels. Phase transformation kinetics in the model, for both the austenite-ferrite and austenite-pearlite reactions, have been characterized through the use of the Avrami equation. A combination of experimental and literature data have been employed for the development of equations to quantitatively predict the microstructure formed in the steel rod after transformation. A modified Gladman equation was adopted for the strength predictions. Validation of the model has been achieved with controlled cooling experiments conducted in the laboratory. The experiments were designed to simulate the Stelmor process, involving a range of steel grades, rod diameters and air velocities. Thermal histories in steel rod samples during forced air cooling were acquired by mounting a thermocouple at the centreline of each rod. After cooling, the rod samples were subjected to microstructural examination and mechanical testing. Results from this investigation were utilized to develop relationships among steel composition, thermal history and ferrite fraction, ferrite grain diameter and pearlite interlamellar spacing. The laboratory data was also utilized to modify the strength predictions of the Gladman equation. In order to obtain information on cooling conditions in an industrial setting, a series of experiments has been conducted on an operating Stelmor line at the No. 2 Rod Mill of Stelco Hilton Works. The technique followed in the plant trials was similar to that employed in the laboratory and the thermal histories of the test rods allowed the mathematical model to be "tuned" to operating conditions. Mechanical properties for several industrial steel grades were also measured during the plant trials, and have been applied to test the predictive capability of the model. Comparisons of the model-predicted thermal histories, microstructures and mechanical properties with those measured in both the laboratory and plant tests have been made. The results of the thermal history comparison for both laboratory and plant conditions showed good agreement between the model-predicted and measured centreline temperatures of control-cooled steel rod. Predicted temperatures during the austenite-ferrite and austenite-pearlite phase transformations were within the expected error associated with prediction of transformation kinetics. Good agreement was obtained between model-predicted and measured ferrite fraction, ferrite grain diameter and interlamellar pearlite spacing. Yield strengths and ultimate tensile strengths predicted by the model for the laboratory and plant tests displayed excellent agreement with measured strengths. In order to obtain a test of the predictive capability of the model under Stelmor line conditions, an independent set of ultimate tensile strengths for Stelmor-cooled steel grades was obtained. These samples were taken directly from grades being processed on the line. A comparison between model-predicted and measured UTS for these grades yielded excellent agreement in the 1020-1040 and eutectoid composition range, with a fair prediction obtained for 1055-1065 grades.
Applied Science, Faculty of
Materials Engineering, Department of
Graduate
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3

Nickoletopoulos, Nicholas. "Physical and numerical modeling of steel wire rod fracture during upsetting for cold heading operations." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37796.

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Анотація:
A comprehensive methodology to physically and numerically model upsetting in cold heading was developed.
The physical model was a Drop Weight Test with a guided pocket-die set capable of approximating industrial cold heading conditions. The results show that the test is sensitive to the critical parameters for cold heading. These include surface quality, residual element level, nitrogen content, microstructure, decarburization, and specimen geometry. The test is capable of assessing the fracture behavior of cold heading materials.
One goal of the study was to reveal differences in fracture behavior with varying steel sources. Accordingly, the matrix of test materials consisted of grade 1038 steels from three different steel sources.
Material preparation and conditioning of test materials approximated industrial procedures for cold heading materials. These procedures included hot rolling, controlled rod cooling, descaling, straightening, lime coating and lubricating, and wire drawing. Spheroidization of test specimens was performed in an industrial batch furnace using an industrial heat treatment cycle.
A finite element program (FEM) enabled the simulation of upsetting in cold heading. The inputs required to model the cold heading process include flow stress behavior and friction conditions representative of cold heading. These inputs were obtained using the CANMET Cam Plastometer and the Friction Ring Test.
The Cockcroft and Latham fracture constants for an as-rolled and a spheroidize annealed 1038 material were computed by FEM modeling and the critical values were calibrated using the Drop Weight Test. The fracture criterion constant was found to be independent of strain path for upsetting in cold heading and thus is material-related.
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4

Mirjana, Filipovic. "Evolution of artificial defects during shape rolling." Licentiate thesis, Högskolan Dalarna, Materialvetenskap, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:du-5215.

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Анотація:
Very often defects are present in rolled products. For wire rods, defects are very deleterious since the wire rods are generally used directly in various applications. For this reason, the market nowadays requires wire rods to be completely defect-free. Any wire with defects must be rejected as scrap which is very costly for the production mill. Thus, it is very important to study the formation and evolution of defects during wire rod rolling in order to better understand and minimize the problem, at the same time improving quality of the wire rods and reducing production costs. The present work is focused on the evolution of artificial defects during rolling. Longitudinal surface defects are studied during shape rolling of an AISI M2 high speed steel and a longitudinal central inner defect is studied in an AISI 304L austenitic stainless steel during ultra-high-speed wire rod rolling. Experimental studies are carried out by rolling short rods prepared with arteficial defects. The evolution of the defects is characterised and compared to numerical analyses. The comparison shows that surface defects generally reduce quicker in the experiments than predicted by the simulations whereas a good agreement is generally obtained for the central defect.
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5

Filipovic, Mirjana. "Evolution of artificial defects during shape rolling." Licentiate thesis, Stockholm : Division of Mechanical Metallurgy, Department of Material Science and Engineering, Industrial Engineering and Management, Royal Institute of Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4350.

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6

Westin, Tommy. "Induktiv provning av ferritiskt rostfritt stå." Thesis, Högskolan Dalarna, Materialvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:du-10039.

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Анотація:
The report examines the factors which may be a contributing cause to the problems that are present when ferritic stainless steel are eddy current tested in a warm condition. The work is carried out at Fagersta Stainless AB in Fagersta which manufactures stainless steel wire. In the rolling mill there is an eddy current equipment for detection of surface defects on the wire. The ferritic stainless steels cause a noise when testing and this noise complicates the detection of defects.Because of this, a study was made of how the noise related to factors such as steel grade, temperature, size and velocity. By observing the signal and with the possibilities to change the equipment settings the capability to let a signal filter reduce the noise level were evaluated. Theories about the material's physical properties have also been included, mainly the magnetic properties, electrical conductivity and the material's tendency to oxidize.Results from the tests show that a number of factors do not affect the inductive test significantly and to use a filter to reduce the noise level does not seem to be a viable option. The level of noise does not relate to the presence of superficial particles in form of oxides.The ferritic stainless steels showed some difference in noise level. Which noise level there was did match well with the steels probability for a precipitation of a second phase, and precipitation of austenite may in this case contribute to noise when using an eddy current instrument.The noise is probably due to some physical material property that varies within the thread.
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7

Луценко, Владислав Анатолійович, Владислав Анатольевич Луценко та Vladyslav A. Lutsenko. "Наукові основи вдосконалення термомеханічної обробки катанки для сталевого дроту малого діаметру". Thesis, Запорізький національний технічний університет, 2015. http://eir.zntu.edu.ua/handle/123456789/417.

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Анотація:
Луценко, В.А. Наукові основи вдосконаленнятермомеханічної обробки катанки для сталевого дроту малого діаметру [Текст]: дис. … докт. техн. наук: 05.16.01 : захищена ....: затверджена…. /Луценко Владислав Анатолійович. – Запоріжжя, 2015. – 353 с.
UK: Дисертаційна робота присвячена підвищенню в процесі ТМО пластичних властивостей сталевої катанки. Отримана сталева катанка має структуру: високовуглецева – дисперсний перліт із відсутністю замкнутої цементитної сітки, мінімальний зневуглецьований шар, який рівномірно розподілений по периметру; низьковуглецева – рівномірну структуру фериту з мінімальною кількістю перліту; легована – наявність бейніто-мартенситних ділянок до 10% в змішаній структурі. Результати використані на дротових станах ВАТ «БМЗ» та ПАТ «АрселорМіттал Кривий Ріг». Підвищення пластичності катанки забезпечило виготовлення сталевого дроту малого діаметру без проміжної термічної обробки, що дозволило знизити видатковий коефіцієнт металу в середньому на 10%. EN: The dissertation is devoted of increasing in thermo-mechanical processing the plastic properties of steel wire rod. The obtained steel wire rod has the structure: high carbon – the dispersion of perlite without closed cementite net, the minimum depth of equable decarburized layer; low carbon – uniform structure of ferrite with a minimum of perlite; alloy – the occurrence of bainite-martensite areas up to 10% in the mixed structure. The results were used on the rod mills OJSC “Byelorussian steel works” and РJSC “ArcelorMittalKryvyiRih“. The increasing of plasticity provided the production of steel wire of small diameter without intermediate heat treatment, thus reducing the expenditure coefficient of metal by 10% in average. RU: В диссертационной работе решена актуальная научно-техническая проблема – повышение после высокотемпературной прокатки пластических свойств металла путем развития научных основ о влиянии процессов ТМО на структурообразование и качественные характеристики стальной катанки. Установленные закономерности позволили совершенствовать технологию ТМО катанки и при экономии материальных ресурсов обеспечить производство стальной проволоки малого диаметра для металлокорда (в том числе сверхвысокопрочного), высокопрочной бортовой, канатной, легированной сварочной и низкоуглеродистой. Изучена кинетика превращения аустенита непрерывнолитой стали 90 при непрерывном охлаждении и в изотермических условиях. Установлено, что выделения цементита по границам зерен подавляются и полностью отсутствуют при скоростях более 10°С/с и при изотермическом распаде. Определено, что величина эффекта рекалесценции в стали 90 зависит от времени превращения. Установлено, что при ТМО снижение температуры после горячей деформации с 1050…1100°С до 900…950°С в результате принудительного охлаждения при повышении дробности деформации (на 20%) приводит к увеличению пластических свойств высокоуглеродистой стали. Полученная катанка для стальной проволоки, в отличие от традиционной, имеет повышенные пластические свойства. Основу структуры катанки составляет: высокоуглеродистой – сорбитообразный перлит (более 70%) с отсутствием избыточных структур (замкнутой цементитной сетки), минимальный обезуглероженный слой равномерно распределен по периметру; низкоуглеродистой – равномерная структура феррита с минимальным количеством пластинчатого перлита; легированной – наличие бейнито-мартенситных участков до 10% в смешанной структуре. Повышены требования к микроструктуре и свойствам высокоуглеродистой катанки и проволоки, которые отражены в изменении №11 к ЗТУ 840-03-2006 «Катанка стальная сорбитизированная для металлокорда, бортовой проволоки и проволоки для рукавов высокого давления» и ТУ У 276.3-23365425-638.2008 «Проволока стальная термически обработанная». Результаты использованы на ПАО «АрселорМиттал Кривой Рог» при разработке СТИ 228-112-2008 «Производство катанки из легированных сталей для сварочной проволоки ответственного назначения», изменения №3 к режимам охлаждения проката в потоке проволочного стана 150-1 СПЦ-1. Разработаны и внедрены на ОАО «БМЗ» режимы ТМО стальной катанки, в том числе для сверхвысокопрочной проволоки и металлокордапо ЗТУ 840-03-2006 (Изменения к ТК 840-П13-01-2002 и ТК 840-П3-01-2007 на режимы двухстадийного охлаждения катанки различного марочного сортамента в потоке стана 150). Повышение пластичности после высокотемпературной прокатки обеспечило изготовление стальной проволоки малого диаметра различного назначения без промежуточной термической обработки с сохранением требуемых конечных характеристик. Катанка, изготовленная по новому режиму ТМО, переработанная на проволоку малого диаметра, имеет лучшую технологичность в сравнении с базовой. Так, при производстве высокопрочногометаллокорда обрывность снизилась на 34%, а сверхвысокопрочного – на 23%. Освоение усовершенствованных режимов ТМО позволило снизить расходный коэффициент металла в среднем на 10%. Общий фактический экономический эффект от внедренных новых технологических решений составляет 31,7 миллиона гривен, доля автора – 4,44 миллиона гривен.
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Machado, Duarte Jéssica. "Experimental and numerical studies on Wire-and-Arc Additively Manufactured stainless steel rods." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Additive manufacturing has gained worldwide popularity due to its numerous benefits, which includes structural efficiency, reduction of material consumption and wastage, enhanced customisation, improved accuracy and safety on-site. Among the various categories of the additive manufacturing process, Wire and arc additive manufacturing (WAAM) has proven its ability of producing medium to large scale components. However, there is still a lack of knowledge regarding the structural response and mechanical properties of WAAM-produced elements. This paper provides results of numerical and experimental studies on WAAM rods produces using a commercial ER308LSi stainless steel welding wire. The aim is to evaluate the effect of initial imperfections and material mechanical properties on the response of such rods under compression. Tensile and compression tests were carried out in order to determine the mechanical properties of the rods. Subsequently, numerical simulations were performed in order to simulate the mechanical response of the rods under different conditions.
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Ackermann, Marc Antoni Verfasser], Wolfgang [Akademischer Betreuer] [Bleck, Ulrich [Akademischer Betreuer] Krupp, and Werner [Akademischer Betreuer] Theisen. "Bainitic TRIP steels for controlled cooled wire rod / Marc Antoni Ackermann ; Wolfgang Bleck, Ulrich Krupp, Werner Theisen." Aachen : Universitätsbibliothek der RWTH Aachen, 2020. http://d-nb.info/1227447507/34.

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10

Šťastná, Barbora. "Vliv silničních záchytných systémů na počet a druh dopravních nehod." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-225924.

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The aim of the master´s thesis is to analyze the types of road restraint systems, a description of testing road restraint systems and the use of wire rope safety fence in the Czech Republic and abroad. In addition, there is an analysis on the highway of R48 in the section Nový Jičín – Příbor and assessed in terms of the number and type of accidents in connection with wire rope safety fence.
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Книги з теми "Steel wire rod"

1

Commission, United States International Trade. Stainless steel wire rod from India. Washington, DC: U.S. International Trade Commission, 1993.

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2

Commission, United States International Trade. Stainless steel wire rod from Brazil and France. Washington, DC: U.S. International Trade Commission, 1994.

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United States International Trade Commission. Certain steel wire rod from Canada, Germany, Trinidad & Tobago, and Venezuela. Washington, DC: U.S. International Trade Commission, 1997.

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United States International Trade Commission. Certain steel wire rod from Canada, Germany, Trinidad & Tobago, and Venezuela. Washington, DC: U.S. International Trade Commission, 1998.

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5

United States International Trade Commission. Certain steel wire rod from Canada, Germany, Trinidad and Tobago, and Venezuela. Washington, DC: U.S. International Trade Commission, 1997.

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6

United States International Trade Commission. Certain steel wire rod from Brazil and Japan. Washington, DC: U.S. International Trade Commission, 1994.

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7

United States International Trade Commission. Certain steel wire rod from Brazil and Japan. Washington, DC: U.S. International Trade Commission, 1994.

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8

United States International Trade Commission. Certain steel wire rod from Belgium and Germany. Washington, DC: U.S. International Trade Commission, 1994.

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9

United States International Trade Commission. Certain steel wire rod from Canada, Germany, Trinidad and Tobago, and Venezuela. Washington, DC: U.S. International Trade Commission, 1997.

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10

Commission, United States International Trade. Stainless steel wire rod from Germany, Italy, Japan, Korea, Spain, Sweden, and Taiwan. Washington, DC: U.S. International Trade Commission, 1997.

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Частини книг з теми "Steel wire rod"

1

Ji, Yuan, Yujun Li, Shaoxiang Li, Xiaofeng Zhang, and Jiaquan Zhang. "Central Segregation of High-carbon Steel Billet and Its Heredity to the Hotrolled Wire Rods." In 7th International Symposium on High-Temperature Metallurgical Processing, 625–33. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119274643.ch77.

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2

Ji, Yuan, Yujun Li, Shaoxiang Li, Xiaofeng Zhang, and Jiaquan Zhang. "Central Segregation of High-carbon Steel Billet and Its Heredity to the Hot-rolled Wire Rods." In 7th International Symposium on High-Temperature Metallurgical Processing, 625–33. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48093-0_77.

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3

Santos, Bruno dos, António Lopes, and Rui Esteves Araújo. "Fault detection scheme for a road vehicle with four independent single-wheel electric motors and steer-by-wire system." In Advanced Vehicle Control AVEC’16, 417–22. CRC Press/Balkema, P.O. Box 11320, 2301 EH Leiden, The Netherlands, e-mail: Pub.NL@taylorandfrancis.com, www.crcpress.com – www.taylorandfrancis.com: Crc Press, 2016. http://dx.doi.org/10.1201/9781315265285-67.

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4

"Steel Wire Rod." In Properties and Selection: Irons, Steels, and High-Performance Alloys, 272–76. ASM International, 1990. http://dx.doi.org/10.31399/asm.hb.v01.a0001016.

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5

"Steel Bar, Rod, and Wire." In Metals Handbook Desk Edition, 232–41. ASM International, 1998. http://dx.doi.org/10.31399/asm.hb.mhde2.a0003095.

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6

Campbell, P. C., E. B. Hawbolt, and J. K. Brimacombe. "APPLICATION OF MICROSTRUCTURAL ENGINEERING TO THE CONTROLLED COOLING OF STEEL WIRE ROD." In Proceedings of the Metallurgical Society of the Canadian Institute of Mining and Metallurgy, 309–30. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-08-035770-6.50027-1.

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7

Labib, H. F., G. M. Megahed, I. El-Mahallawi, R. J. Dashwood, and P. D. Lee. "SIMULATION AND CONTROL OF THE COOLING OF HOT ROLLED STEEL WIRE ROD." In Current Advances in Mechanical Design and Production VII, 389–96. Elsevier, 2000. http://dx.doi.org/10.1016/b978-008043711-8/50040-4.

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8

Dalton, David R. "Grapevine from Hardwood Cuttings." In The Chemistry of Wine. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190687199.003.0011.

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Rooted plants can often be obtained and transferred from one environment into another either in order to increase the number of vines producing a specific grape in a vineyard or to introduce a new variety or propagate a new cultivar. It has been found that some vines can be grown from hardwood cuttings. The technique of hardwood cutting involves removing a cane (Figure 4.1, a and b) from a successful vine once the vine has gone dormant for the winter, trimming it appropriately, and then planting it in well-fertilized soil either with or without growth stimulants (i.e., phytohormones, vide supra). It is clear that the conditions of planting, reported by various sources, are a function of variety and terroir. Interestingly, it appears that the cutting, which may have been grown on a rootstock different from the variety of grape produced, will produce roots that are true to the variety of grape. Once the vine, from seed, grafting, or cane begins to grow, it must be “trained” so that its growth can be monitored and successful grape crops harvested. The training includes proper spacing of vines and the establishment of a trellis system or posts for each vine. Trellis systems are set up during the first or second year of the growth of the vine since harvesting of grape crops before the third year is rare. The trellis, which will need to bear the weight of the vine and grapes, is built much like a fence. Thus, the row of grape vines is held up by end posts at the end of the row and line posts about 20 feet apart between the ends. Usually, there is a line post for every two or three vines with some species needing more space than others. Generally the end posts are thick treated wood, concrete, or steel and are strongly anchored. The line posts are thinner, and the trellis itself is made of twelve (12) gauge or heavier wire with the number of wires a function of the weight to be supported and the height to which the grapes are to be grown.
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Rodden, John G. "After the Wall II: The Fall and Rise of an Educational System." In Repainting the Little Red Schoolhouse. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195112443.003.0013.

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In the fall of 1990, a hit movie comedy opened to packed houses in eastern German theaters. Go, Trabi, Go!—the producers gave the film an English title—celebrated with rollicking Weltschmerz the misadventures of Georg, a hapless baby-blue Trabant 601—whose jinxed capers make him the undeniable screen successor to Herbie, the Disney VW Beetle of the 1960s. Georg stalls pitifully on the Autobahn, is shorn of his bumper in Munich traffic, is robbed of all four tires by pranksters during a camping stop, and even gets mistaken for scrap near an auto junkyard, an obvious metaphor for the DDR running out of gas—as it lurches toward unity. Go, Trabi, Go! begins with DDR German teacher Udo Struutz deciding to fulfill a long-deferred dream: his first journey to the West will be to travel from his hellhole hometown of industrial Bitterfield, the dirtiest city in all of Eastern Europe, to balmy Naples, thereby tracing the footsteps of his beloved Goethe, whose Italian Journey recorded his own (less quixotic) southern pilgrimage from Weimar in the 1780s. Herr Struutz packs his wife and daughter into little Georg, a family member for 20 years whom Herr Struutz lovingly wipes down with his own washcloth. “See Naples and Die!” scrawls Herr Struutz on Georg’s trunk, recalling Goethe’s clarion call to self-actualization: “Sterbe und werde!” (“die and become!”). The adventure turns out to be a story of Innocent Ossis Abroad and their psychological collision with the West. Numerous scenes in Go, Trabi, Go! allude to the region’s plight: putt-putting along on the Autobahn, little Georg strains to do his maximum speed of 60 mph as contemptuous Mercedes-Benzes, Porsches, and BMWs fly by; broken-down in Bavaria, Georg costs the Struutz family a steep (an outrageously inflated) price for repair, which the intrepid socialist entrepreneurs earn by charging curious Bavarians DM 5 for a “Trabi Peep Show” and a five-minute joy ride in Georg. Reassuringly, the Struutz family eventually does reach its destination, albeit with the accident-prone but indomitable Georg—now minus his top—as a breezy convertible.
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Goldsmith, Jack, and Tim Wu. "How Governments Rule the Net." In Who Controls the Internet? Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780195152661.003.0010.

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In 1966 a retired British Major named Paddy Roy Bates took a liking to a small, abandoned concrete platform in the North Sea nicknamed “Rough’s Tower.” Rough’s Tower was a World War II gun tower used by the British to fire at German bombers on their way to London. By 1966, nobody wanted the rusting contraption, so Bates renamed it the “Principality of Sealand” and declared independence from the United Kingdom, six miles away. He awarded himself the title of Prince Roy, and proceeded to issue Sealand passports and Sealand stamps with pictures of his wife, Joan, an ex-beauty queen. Sealand has had a colorful history, but before 1999, nothing suggested that a chunk of concrete and steel off the English coast might have anything to do with the history of the Internet. That year, Bates agreed to let a young man named Ryan Lackey move to Sealand and begin transforming it into a “data haven.” Lackey’s company, “HavenCo,” equipped Sealand with banks of servers, and Internet links via microwave and satellite connections. Borrowing an idea from cyberpunk fiction, HavenCo aimed to rent computer space on Sealand to anyone who wanted to escape the clutches of government. It promised potential clients—porn purveyors, tax evaders, Web gambling services, independence movements, and just about any other government-shy Internet user—that data on Sealand servers would be “physically secure against any legal action.” HavenCo, the company boasted, would be “the first place on earth where people are free to conduct business without someone looking over their shoulder.” HavenCo was the apotheosis of the late 1990s belief in the futility of territorial government in the Internet era. Lackey’s company was premised on the commonplace assumption that governments cannot control what happens beyond their borders, and thus cannot control Internet communications from abroad. “If the king’s writ reaches only as far as the king’s sword, then much of the content of the Internet might be presumed to be free from the regulation of any particular sovereign,” wrote Duke law professor James Boyle, generalizing the point.
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Тези доповідей конференцій з теми "Steel wire rod"

1

Cao, Shuwei. "Production Practice of C82DA High Carbon Steel Wire Rod for Conversion to Wire." In 3rd International Conference on Material, Mechanical and Manufacturing Engineering (IC3ME 2015). Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/ic3me-15.2015.28.

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Jang, Beom-Taek, and Seock-Sam Kim. "Rolling/Sliding Wear Behavior of High Carbon Steel Wire Rod (HSWR) of Traction Machine." In STLE/ASME 2008 International Joint Tribology Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ijtc2008-71060.

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Steel wires are critical load-bearing components in a wide range of applications such as elevator, cranes, mine haulage etc. The traction machine of elevator which transmits power to wire rope causes micro-slip between wire rope and sheave during reciprocating action. The lubrication condition of wire rope is also changed due to the lack of grease. This study focuses on the wear behavior of steel wire and effect of both dry and grease conditions by using the rolling/sliding contact wear tester done under various slip ratios and rolling speeds. The experimental results of the wear volume curve against the number of revolutions under the grease condition are compared with the results under dry condition. The worn surface of steel wire and the size of wear particles were observed by SEM. In order to quantify the wear amount of steel wire we established an equation and finally obtained the wear coefficient.
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3

Kiefer, Bruce, and Alvaro Loosli. "HIGH QUALITY WIRE ROD AND BAR PRODUCTION AT YONGXING SPECIAL STAINLESS STEEL." In 55º Seminário de Laminação e Conformação. São Paulo: Editora Blucher, 2018. http://dx.doi.org/10.5151/1983-4764-31232.

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4

Shore, J., R. Hsueh, and S. Masini. "High-Quality Wire Rod and Bar Production at YongXing Special Stainless Steel." In AISTech2019. AIST, 2019. http://dx.doi.org/10.33313/377/202.

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Singh, Naveen, Sudhanshu Telang, Manoj Chopkar, and Sanjeev Das. "Optimizing Metallurgical and Mechanical Properties of High-Carbon Steel Wire Rod by Controlling Steelmaking and Rolling Parameters." In International Conference on Advances in Metallurgy of Long and Forged Products. Association for Iron & Steel Technology, 2021. http://dx.doi.org/10.33313/301/015.

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6

Le, Tri Dan, Noriaki Inaba, and Minoru Takahashi. "Investigation of Critical Heat Flux in Single Fuel Pin With and Without Wire Spacer." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30892.

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Light water reactor could have fast neutron spectrum with high conversion ratio nearly equal unity by using tight lattice fuel assembly with wire spacer. There were some previous about critical heat flux for tight lattice but it were not focused on small range of qualities and also not directly using water as a coolant. We experimentally simulated vertical single fuel rod geometry with and without a wire spacer by using an electrically heated stainless steel rod. The rod is cooled by single or two-phase water in vertical up flow (from the bottom to the top) depending on the electrical input. We determined the critical heat flux for this system by varying the inlet temperature from 333 to 373 K and mass fluxes from 205 to 410 kg/m2s. The result show the critical heat flux (CHF) data in two phase flow condition base on inlet and outlet condition in both case of heater pin with and without wire. The CHF values were higher with wire than without wire due to the effect of wire and spiral flow.
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LABER, Konrad. "The effect of microstructure banding on the mechanical and TECHNOLOGICAL properties of wire rod of cold upsetting steel." In METAL 2019. TANGER Ltd., 2019. http://dx.doi.org/10.37904/metal.2019.863.

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Ben Khalifa, Nooman, Annika Foydl, Daniel Pietzka, Andreas Jäger, and A. Erman Tekkaya. "Extrusion of Multi-Material Components." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-4197.

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Three innovative extrusion processes for the manufacture of multi-material parts are discussed: co-extrusion of discontinuously steel reinforced aluminum profiles, composite extrusion of continuously steel wire reinforced profiles and composite rod extrusion. In the first two processes the embedded steel elements are not deformable while by composite rod extrusion both materials are deformable. By means of experimental and numerical analysis, the parameters that mainly influence the reinforcement ratio, the extrusion force as well as the material distribution are analyzed. On the basis of this, analytical approaches are deduced to describe the process limits for the technologies. The paper closes with examples of applications regarding the lightweight requirements as well as functional integrations by forming multi-materials.
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Tanabe, Sho, Dan Tri Le, Masatoshi Kondo, and Minoru Takahashi. "Experimental Study on Critical Heat Flux in Three Pin Bundle With Wire Spacer for Boiling Water Reactor." In 2016 24th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icone24-60997.

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Анотація:
Related to the high conversion type BWR, the experimental study on the CHF were performed with a forced convection type water flow loop. In the test section of the loop, three heater pins as a rod bundle are installed, and water flows around the heater pins in the triangular flow channel at atomospheric pressure. The ratio of distance between two heater pins and the diameter of the heater pin (i.e., P/D) was the constant as 1.18 in all the experiments. This experiment conducted at the constant mass flux of 435 kg/m2s. The wire spacers, which were made of stainless steel wire coated by Teflon tube, were wound on the heater pins. The pitches of the wire spacer wound on the surface of the heater pins were 50 mm and 100mm. The water temperature at the inlet of the test section was controlled in the range between 60 and 90 °C by the pre-heater. The parameters in the current work were the pitch of the wire spacer and the quality at the location of the burnout (i.e., local quality). The results indicated that the CHF obtained in the test section with the wire spacer was larger than that without the wire spacer. The wire spacer must promote the CHF value. The smaller pitch of the wire spacer resulted to the smaller CHF value.
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10

Zou, Linjiang, Chaoxiang Li, Yinmei Yuan, Wei Guo, Fan Yang, and Yaxiong Lu. "Numerical Study of the Pusher-Type Billet Reheating Furnace." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80657.

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Анотація:
In the present work, a commercial CFD software package, FLUENT, was used to develop a three-dimensional model of pusher-type billet reheating furnace for the second high speed wire rod plant of XiangTan Iron and steel Co. Ltd. The purpose of the study was to gain a better understanding of the gas flow and velocity and pressure distribution in the furnace. The results show that the numerical results are in agreement with the practice and the characteristics of the furnace configuration. The CFD model can be used to improve the performance and structure by analyzing and studying the behavior of the reheating furnace.
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