Spelling suggestions: "subject:"vivax"" "subject:"biva""
1 |
Automatisering av vaxflöde till bivaxdukar / Automation of wax flow to beeswax clothHedlund, Jesper, Bengtsson, Linus January 2021 (has links)
An automatic solution for a manual manufacturing operation can provide increased production with moreconsistent quality and a higher resource utilization. An operation that manually applies wax on cloth, which results in uneven quality, a lot of waste and the production speed is not optimal. The operation also requires that an operator must be on site throughout the time. The purpose of this study is to identifybottlenecks in production and design an automated concept to increase production speed, reduce waste and achieve a more even quality. The topics in the study are mainly linked to value flow analysis, bringing forward the customer needs and concept generation. The theoretical areas that are addressed are connected and form the basis for beingable to support the development of the concept and to be able to help identify current shortcomings and weaknesses. The study’s approach is based on qualitative methods, observations on the current production line, interviews with staff and a literature study were the basis for the report. A value flow analysis identified that the operation that puts beeswax on cloths was the longest operation. Through interviews and observations, the customer need was determined, which was then translated into product requirement. The results of the study show a concept proposal for a semiautomated solution to the operation that puts beeswax on cloths. The design proposal produced is based on the literature study. The design proposal provides good conditions for a higher production speed and a more even quality on the product, as well as reducing the waste of wax and heat for the operation that puts beeswax on cloths. / En automationslösning på en manuell tillverkningsoperation kan ge en ökad produktion med jämnarekvalitet och ett högre resursutnyttjande. En operation som manuellt impregnerar vax på tygdukarmedför i en ojämn kvalitet, mycket spill samt att produktionshastigheten inte är optimal. Operationenkräver också att en operatör måste vara på plats under hela processen. Syftet med examensarbetet är att identifiera flaskhalsar i produktionen och utforma ett konstruktionsförslag på en automatiseradtillverkning för att öka produktionshastighet, minska spill och få en jämnare kvalitet. De områdena som denna studie berör är främst kopplade till värdeflödesanalys, framställande av kundbehov, konceptgenerering och detaljkonstruktion. De områdena som tas upp hänger ihop ochligger som grund till att kunna stödja framtagningen av konstruktionsförslaget samt att kunnaidentifiera nuvarande brister och svagheter. Studiens tillvägagångssätt bygger på kvalitativa metoder, observationer på den nuvarandeproduktionslinan, intervjuer med personal och en litteraturstudie låg som grund till studien. En värdeflödesanalys identifierade att operationen som impregnerar dukar med bivax hade längstoperationstid. Genom intervjuer och observationer fastställdes kundbehovet som sedan översattes tillproduktkrav i form av en målspecifikation. Resultatet av studien visar ett konstruktionsförslag på en halvautomatiserad lösning för impregneringsoperationen. Konstruktionsförslaget bygger på den gjorda litteraturstudien och kommer ge goda förutsättningar för en högre produktionshastighet och jämnare kvalitet samt även minskaspillet av vax och värme för impregneringsoperationen.
|
2 |
Mörkrets Mästare : En studie i teknik och materialitet av Roj Fribergs bilder / The Master of Darkness : A study in technique and materiality of Roj Fribergs picturesFrykholm, Maja January 2022 (has links)
Abstract This study concerns the Swedish artist Roj Friberg (1934–2016). The essay is based on a study of technique and materiality used by Friberg. He is quite marginalized and slightly forgotten in the Swedish art history and when mentioned merely described as a painter from the 1960´s who used graphite mixed with French turpentine, in order to work on the surface with an eraser attached to an electric drill. However, Friberg used other different and more complex painting techniques in his work, something this essay will notice and highlight. The used method is a biographical, dealing with the references to Friberg. To explain why he was considered an “outsider” in Swedish art, the theory of social capital by Pierre Bourdieu is applied. Also, Wolfgang Kemps concept of reception history, which focus on the arts beholder, rather than the artists itself. From the middle of 1970 Friberg also used an ancient painting technique called encaustic, heated beeswax mixed with pigment. Paintings which have received very little attention; therefore, the focus is on his use of encaustic in combination with his other techniques, such as melted graphite, melted wax crayons or drawn with wax crayons and graphite. The work with lasered layers and the typical method of working from darkness to light in Friberg´s pictures shows resemblance with the ancient encaustic portraits from Fayum, in the 50 AD.
|
Page generated in 0.0277 seconds