Dissertations / Theses on the topic 'Packningar'
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Oleander, Anna. "Flänsberäkningar med SWG-packningar : På flänstyperna socket weld och welding neck." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-121916.
Full textKjellberg, Sanna. "Optimering av flänsklammor : Ett produktutvecklingsarbete av flänsklammor inom läcktätningsindustrin." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84904.
Full textSkårman, Karl. "Packning av lera." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-97177.
Full textThe ”upper fill” is today compressed with a vibratorplate mounted on a excavator. “Anläggnings AMA” show different kinds of tools for compressing soil and thickness of the layer over the pipe to prevent it from breaking or deforming. “Anläggnings AMA” also shows how thick layers each of the equipment for compressing soil have capacity of. The excavator-mounted vibrator plate isn’t included in that equipment in “Anläggnings AMA”. The aim of this report is to research how different thickness of layers affects the deformation of the pipe and how the stability of the clay is affected. The first test was performed without any bigger problems and the results where easy to evaluate. No damage or deformation to the pipe came up with a layer thickness of 35 cm and 55 cm above the head of the pipe. In the other test which was much more complex then the first, were five different graves compress with different layer thickness and with different equipment. For evaluation of the compaction, a cone penetration test was used. The results from these tests were hard to evaluate though. My interpretation of the results is that a layer thickness of 45 cm gives a good compaction. Eventually you can increase the thickness but 70 cm is a little bit to much.
Göransson, Martin, and Philip Brodnäs. "Kvalitetssäkring av packning med digitala verktyget MCA-3000." Thesis, Jönköping University, JTH, Byggnadsteknik och belysningsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-54054.
Full textStenberg, Fanny. "Ständiga förbättringar genom Systematisk problemlösning : En fallstudie på AstraZenecas packningsavdelning PET Packning." Thesis, Linköpings universitet, Logistik- och kvalitetsutveckling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120570.
Full textIn order for a company to become successful, it is crucial that the customers are satisfied. Consequently, the interest for customer satisfaction has increased. There are many approaches to satisfying customer expectations. Customer demands are constantly evolving and companies need to adapt in order to stay ahead. This has resulted in a growing interest for continuous improvements. There are no doubts that a company should implement continuous improvements. How this is done is a more complicated question. A work process that suits one company may be impossible for another company to implement. A company’s type of industry has proven to have great impact on how continuous improvements are best implemented. Continuous improvement work in the pharmaceutical industry differs greatly from other industries. This is mainly due to regulatory demands that other industries do not have to face. This report is part of a master’s thesis that has been done at the pharmaceutical company AstraZeneca. An empirical study has been conducted, at the packaging department PET packaging, in order to analyse the methods that the company is using when working with continuous improvements. The packaging processes have been studied to identify the reasons for any unplanned stops that occur in the packaging machines. The goal of the project is to identify the causes in order to eliminate any unplanned stops and to increase the amount of value adding activities that the company is performing. The result shows that variation in the packaging material is one of causes of unplanned stops. AstraZeneca is in general very good at working with continuous improvements. The employees and management show great enthusiasm but lack somewhat when it comes to following up the implemented improvements. Based on the empirical study, AstraZeneca is recommended to put more emphasis on following up the continuous improvement work in order to create a good environment for a learning organisation. A closer cooperation with the material supplier is also recommended in order to eliminate special sources of variation.
Brink, Jennie, and Nathalie Gadolin. "Vad i min packning använder jag och vad borde jag fått med mig?" Thesis, Malmö högskola, Fakulteten för lärande och samhälle (LS), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-35426.
Full textSvedberg, Ida, and Christopher Holmqvist. "Analys av friktionskoefficient och sättningsgrad i gummipackningar : Analysis of the friction coefficient and setting ratio of rubber gaskets." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-19412.
Full textThis degree project was located at SwePart Transmission AB in Liatorp. The company manufactures gears and do also provide total solutions for gearing. SwePart Transmission AB has noticed problems with leakage in the division plane in their gearboxes. The company has premonitions that the structure is subject to sliding in the division plane where the gasket is placed. To prevent sliding it’s required that the friction coefficient between the gasket and division plane and the preload of the fasteners is known at the design stage. The gaskets friction coefficient is currently uncertain and has been checked. This was done by tests in which we placed the gasket in a friction joint and then made measurements in a tensile testing machine. With the obtained measurement values we could mathematically obtain a new coefficient of friction. The tests were performed with three different surface finishes in the joint to see if it had any effect on the friction coefficient. After the tests, we could see a difference in coefficient of friction between different surface finishes on the contact surfaces to the gasket. We could also see a difference in coefficient of friction of oiled and dry surface. The joints capability of sliding is determined by the preload in the screws that is dramatically reduced if large settings occur. It’s known that settings will occur, but the extent is unknown. Since the gasket is the softest part in the bolted joint, it will dominate the joints setting behavior. In our tests we have measured the amount of settings caused by the gasket as a function of time. The test was made by sandwiching a gasket with a certain load. After that the change in thickness was measured during 25 minutes. This test was performed because the company had received complains from customers concerning preload losses in the screws after an unknown time in use. The preload losses can be traced to settings in the gasket. According the measurements from the test, there are no major settings in our test joint, which can be explained by the difference in contact area between our test and the “real” design. This report will concern the setting rate and friction coefficient of rubber gaskets where tests and underlying theories will be presented. The test has been developed and performed with help of expertise form Linnaeus University.
Rosén, Moa. "Lagertjocklekens inverkan på packning och homogenitet : fältundersökning i full skala av en tätkärna för dammbyggnation." Thesis, Luleå tekniska universitet, Geoteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-82744.
Full textA dam consists of a system with different functions; one damming, one diverting and one controlling function. The purpose with the damming function is to create an area for water storage. There are different types of dams, the most common design principle in Sweden is an embankment dam. Embankment dams are constructed with different zones, where each zone has specific material properties and functional requirements. The purpose with the earthfill core is to control the seepage through the dam. In Sweden it is common to use glacial till (moraine) as the core material in embankment dams. A dam is constructed in layers, where the material is spread mechanically and then compacted with special compaction equipment to create a homogenous material. When the material is well compacted the density increase and a high density increase the bearing capacity and stability. To control the compaction, different methods are used for field determination of density. The most common methods are the rubber balloon method and nuclear gauge method. The recommended layer thickness in Sweden was 0,5 metres from 1988 to 2020, in august 2020 the layer thickness was reduced to 0,3 metres. The purpose of the master thesis was to investigate how the layer thickness affect compaction and uniformity during construction of a glacial till dam core. A full-scale field study was conducted at the Björkdalsgruvan facility, where the layer thicknesses 0.3 metres and 0.5 metres were examined by construction of two test pallets. Field determination of density was performed with the rubber balloon method and nuclear density gauge, the two sampling methods report water content and density. The soil samples from the rubber balloon method were analysed in the laboratory for water content and dry density. The moraine was analysed by laboratory compaction. Based on the collected information, the density ration, void ratio and air-void content was calculated evaluated. The layer thickness 0.3 metres and 0.5 metres reported different advantages in terms of compaction and uniformity. A layer thickness of 0.5 metres is recommended when constructing a glacial till dam core, since the test pallet of 0.5 metres reported a well compacted moraine through the entire layer thickness. During the field study two methods were used to determine the in-place density, the rubber balloon method and nuclear density gauge. A comparation between the methods showed that there is a linear relation in terms of water content. No relation between the rubber balloon method and nuclear density has been identified in terms of dry density, density ratio, void ratio and air-void content. The result from the rubber balloon method and nuclear density gauge showed an increasing correlation by depth
Larsson, Angelika, Holmqvist Emma Andersson, and Sandra Larsson. "Effektivisering av interna material- och informationsflöden : En fallstudie på Sandvik SMT avseende flöden från packning till centrallager." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-21744.
Full textThe concept of logistics is to handle all the activities within a company in the most efficient way. Logistics is mostly associated with the flow of materials within the company, but it is important to remember that logistic also includes the administrative and information flow. A good information flow, both with external and internal partners will lead to good cooperation between the different partners. Good cooperation will lead to more efficient processes, which in turn will give a higher customer value. The purpose of this paper was to develop a methodology to analyse and improve the efficiency in a material and information flow between different units. Based on the purposed pertinent theories that have been found; for example, theories about Lean production, supply chain management, information systems and the importance of good communication skills within an organization. The theory that was found is secondary data, which has been thoroughly examined before it has been used. A methodology was designed based on the factors that were considered relevant to create good material and information flows. The designed methodology was tested in Sandvik SMT. As a major part of the methodology included an identification of the current status of the case company, interviews and observations have been conducted. The methodology helped to create a structured approach, which has resulted in a number of identified problems. The problems that have been identified includes among others, insufficient communication and information flows within the organisation and a limited cooperation between the various units in the supply chain. Based on the found theory and the study conducted at Sandvik SMT, we concluded that effective material and information flow are created by including well-designed IT systems and good cooperation skills in supply chains.
Beiertz, Fredrik. "Provrigg för brandpost." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-38842.
Full textWindarp, Helén. "Packning i tid och rum : Korologisk förändring och strategier att hantera trängsel i handelsträdgården, bostadsområdet och på begravningsplatsen." Thesis, Södertörn University College, School of Life Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-773.
Full textThe study Packning i tid och rum (Crowding in Time and Space) is a Master Thesis in Human Geography within Geography, presented at Södertörn University College.
The aim is to investigate the connections between time and space, more particularly, geographical changes over time. This is done by focusing on the Study of Land use as a phenomenon and on-going processes in demarcated areas. Distinct areas are given special interest, i.e. how they are used. The study deals with three different kinds of sites in three levels of scale: a market garden, cemeteries and a residential area.
The main focus of the study is on the cemeteries. Sources to geographical data and other pieces of information are geographical systems, statistics, interviews, own observations, and photographs. This material has been worked up with simple statistic methods, map studies, and qualitative methods. The Time Geography and the New Regional Geography are used as a theoretical framework. There is an ambition to search for general understanding. The work is strongly inspired by the geographer Torsten Hägerstrand’s work and approach. It is also influenced by Systems Theory.
The results confirm that there is a closer crowding of geographic objects in time and space within the cemeteries. Chorological changes could indicate similar processes at the garden center and residential area. Space is a limited resource and packing problems need to be solved. Some strategies to achieve that aim are found. At the end is discussed if closer crowding, needs more of register, measuring and restrictions and that some things are accepted to take large place in space since they are temporal.
Studien Packning i tid och rum är ett examensarbete i ämnet geografi, inriktning kulturgeografi, vid Södertörns högskola.
Syftet är att utforska sambandet mellan tid och rum och då som geografiska förändringar över tiden. Det sker genom att studera markanvändning som fenomen och pågående processer i avgränsade områden. Speciellt intresse ägnas åt hur ytor disponeras. Tre olika slags områden studeras: en handelsträdgård, begravningsplatser och ett bostadsområde.
Tyngdpunkten i undersökningen ligger på studiet av begravningsplatser. Geografiska data och annan information har hämtats från geografiska informationssystem, statistik, intervjuer, egna observationer och fotografier. Materialet har bearbetats med enkel statistisk metod, kartstudier och kvalitativa metoder. Som teoretisk ram används tidsgeografi och den nya regionalgeografin. Det finns en ambition att söka efter generell förståelse. Arbetet är starkt inspirerat av geografen Torsten Hägerstrands arbete och synsätt. I arbetet finns även inslag av systemteoretiskt tänkande.
Resultaten visar att det sker en tätare packning av geografiska objekt i tid och rum på kyrkogårdarna. Korologiska förändringar kan tyda på liknande processer i handelsträdgården och bostadsområdet. Utrymmet är en begränsad resurs och packning är ett problem att lösa. Olika strategier för att hantera trängseln observeras. Avslutningsvis diskuteras förhållandet att ju tätare packning desto mer av registerhållning, mätning och restriktioner fordras och att vissa saker tillåts breda ut sig i rummet om de är tillfälliga.
Lindberg, Harriet. "Resa med små barn : Packningslösning för småbarnsfamiljer." Thesis, Mittuniversitetet, Institutionen för design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-36618.
Full textPettersson, Carl. "Packningsstrategier för modularisering på chassi : En studie för att öka modulariseringen och flexibiliteten för packning av komponenter på Scanias lastbilschassier." Thesis, Linköpings universitet, Maskinkonstruktion, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-78919.
Full textOne of the most complex areas of the interfaces at Scania is the interface between components and the side members on the truck. The reason is that there are no standardized interfaces for the attachment of a frame mounted component on the side member. Each component has its own unique interface, which makes it almost impossible to mount the components on other than standardized positions. This master thesis has been carried out to develop how a component mounted on the side member should be designed, which interfaces it should have to the side member and what standardized unit of length it should be divided into. The study also includes the components and parameters that have an effect on the composition of the chassi. The study discusses the components between the front and rear wheel housing; some of the studied components are: compressed air tanks, SCR tanks, silencer, crossmember, fuel tanks and suspensions. The goal with this master thesis is to give recommendations of how the composition of the chassi may improve to increase the flexibility and get a more modularized product. After a general study of the components of today a concept has been developed for how an interface should look like for the attachment of a component on the side member, where tubes and electric cables should be connected and where brackets for bodybuilders should be placed. The results show that the first component should start at a distance of 675 mm from frame front instead of 700 mm as it is today. The second interface behind the second front axle should be kept at 2675 mm from frame front. In additional to this the division of the axle distance should be kept as it is today until a roadmap for how the components will develop. Further, the interfaces in front of the rear axle should be divided into three steps; 705 mm, 818 mm och 905 mm.
Rosén, Martin, and Carolina Victorson. "Förslag till förbättringar av materialhanteringen kring packningslinan hos Spaljisten AB." Thesis, Jönköping University, JTH, Industrial Engineering and Management, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-560.
Full textThe purpose with this report is to give structure to the storage area between
production and packaging at Spaljisten AB in Åseda. The purpose is also to give
suggestions for improvements of work tasks and thereby simplify and improve the
material handling at the packing process.
The background of the task is that Spaljisten AB is going to increase their
production and thereby they also need to increase the packing rate of their
products. They will manage this by installing a new automated packing line and
increase the efficiency of the old manual one. The theoretical background is
mostly obtained from literature which contains relevant facts for our report.
The storage area has been studied visually in order to search for improvements of
today’s layout. We have also performed a frequencestudy of the workload of the
serviceperson who runs the material handling at the packing process. We have
compared our frequencestudy to a similar study made earlier by Göran Tinglöv.
The analyze of the frequencestudy and other observations that has been made are
showed under “Analys” where you also can see the calculations that has been done.
The frequencestudy and the report made by Göran Tinglöv are also analyzed here.
The headline “Resultat” shows the suggestions for improvements that we have
been working on. The suggestions are founded in small improvements of working
routines, increased use of today’s layout and improved working instructions.
The results of the frequencestudies, and the comparison between them, indicates
that there is a lot of time to save by improving previously mentioned items. Both
studies show that the operation time (the real, value-adding work time) only
represents about 50 % of the total available work time.
Spaljisten AB i Åseda tillverkar möbler av folierade spånskivor vilka packas
omonterade i platta paket. Företaget har 120 anställda och levererar största delen
av sin produktion till IKEA.
Syftet med detta examensarbete är att strukturera upp det mellanlager som finns
mellan produktion och packning hos Spaljisten AB. Syftet är också att ge förslag
på förbättringar kring arbetsuppgifterna och därmed förenkla och förbättra
materialflödet fram till packningen.
Arbetet grundar sig i att Spaljisten AB skall utöka sin produktion och därmed
också hastigheten i vilken produkterna packas. Detta skall åstadkommas genom att
installera en ny automatiserad packningslina samt en effektivisering av
materialhanteringen kring den befintliga manuella packningslinan. Den teoretiska
grunden är främst hämtad från litteratur som tar upp de olika moment vilka vi
berör i vårt arbete.
Under arbetet har mellanlagret studerats visuellt för att söka förbättringar av den
befintliga layouten. Vi har också gjort en frekvensstudie över arbetsbelastningen på
materialhanteraren (servicepersonen) samt analyserat denna och gjort en jämförelse
med en tidigare gjord frekvensstudie.
Analysen av den frekvensstudie som utförts samt övriga iakttagelser som gjorts
finns att läsa under rubriken analys där även de beräkningar som gjorts finns
redovisade. Den tidigare gjorda frekvensstudie samt den rapport som denna är
hämtad ifrån finns även analyserade under denna rubrik.
Under rubriken resultat redovisar vi de förslag på förbättringar vi arbetat fram.
Dessa grundar sig främst på små förbättringar av arbetsrutiner, ökat utnyttjande av
dagens layout samt förbättrade arbetsinstruktioner.
Resultatet av frekvensstudierna samt jämförelsen dem emellan pekar på att det
finns mycket tid att hämta genom förbättringar av tidigare nämnda punkter. Båda
mätningarna visar på att operationsverktiden (den verkliga, värdeökande
arbetstiden) enbart uppgår till cirka 50 % av den totala betalda arbetstiden.
Berggren, Anton, and Tobias Grahn. "Undersökning av tätningsmetoder med fokus på aluminiumhus." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-12639.
Full textIn this work sealing methods for aluminum housing have been investigated. The work was delimited to the automotive industry and static gaskets. The thesis brings up how the flange impacts on the sealing capability and the gasket, sealing types, the surface impact on gasket materials, porosity, relative material cost and fasteners.The work is based on a literature study and interviews with concerned people at the company. Practical samples were carried out on a number of materials from suppliers and the materials where exposed to different chemicals and then tensile tested.The materials that were collected through interviews and the literature study testify that many parameters influence the possible sealing methods. It’s not just the material itself that needs to be taken into account. Factors like flange design, material cost, surface defects, fasteners and porosity have a great impact. The practical sample testifies that different chemicals have dif-ferent impact on the mechanical properties and swelling of the material.Finally, a couple of sealing materials are suggested that are suitable for the company to use in their products.
Andersson, Gabriella, and Eva Jonsson. "Transport Cartons' Impact on Supply Chain Efficiency." Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-261675.
Full textTill följd av stora produktsortiment har snabbmodeaktörer ofta ett stort set av transportkartonger, med varierande storlekar, för att distribuera produkterna från tillverkning till varuhus. Eftersom transportkartongerna påverkar fler noder i försörjningskedjan, har de följaktligen stor påverkan på hur effektiv försörjningskedjan är. Tidigare forskning har utvärderat hur transportkartongerna kan påverka enskilda noder i försörjningskedjan, men lite fokus har ägnats åt att utvärdera kartongernas effekt på försörjningskedjan, sett ur ett helhetsperspektiv. Detta examensarbete syftar till att bidra med kunskap för att överbrygga detta gap genom att undersöka hur ett företags transportkartonger påverkar den totala försörjningskedjans effektivitet genom att tillämpa ett helhetsperspektiv. Examensarbetet genomfördes som en fallstudie i samarbete med Hennes & Mauritz (H&M), som är en av de världsledande aktörerna inom snabbmode. Studien identifierar möjligheter och utmaningar relaterade till transportkartonganvändning, och hur kartongerna påverkar försörjningskedjans effektivitet. Vidare utvärderades kostnaden av att ha olika uppsättningar av transportkartonger, baserat på en beräkningsmodell grundad på data från H&M. Resultaten visade att ett litet set av transportkartonger kan ha positiv påverkan på försörjningskedjans effektivitet och generera kostnadsbesparingar till följd av två huvudsakliga anledningar. Den första anledningen är att ett litet set förenklar effektiv containerladdning. Den andra anledningen är att det kan leda till mer effektiv kartonghantering på lager och bättre utnyttjande av lagerutrymme.
Rahma, Ibrahim. "Däck Packning maskin." Thesis, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-25601.
Full textThis is a thesis project on 7.5 credits for CAD-technicians at Halmstad University.The group has been asked by Ten Star Solar company to minimize tire volume. Tirecompanies have under Ten Star Solar bursts with transport and car tires. One of theseweaknesses is that the staff throws old tires to container that fills it up quickly and now isrequired to drive out containers for recycling. It costs the company money each shipment.In this project we have used Fredy Olsson method. The group has made FEM analysis andcompetitive analysis to see what is already on the market.