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Materialval vid nyutveckling av mixerkanna till Ankarsrums assistent
2014 (Swedish)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

At the request of Ankarsrum Assistant AB the main purpose of this thesis was to find another material to replace Polycarbonate in their blender jug. The other purpose was to examine which length that is the most desirable on the blender knives, to prevent the overload protection to be activated, when the knife is working with tough dough. Presented in this project are two scientific issues. The first one is: Which material is most suited to replace Polycarbonate in the blender jug of Ankarsrum Assistent. The second issue is: If the blender knifes are shortened will the duration increase, before the overload protection activates.To learn about blenders and what they can and can’t do, an area analysis was conducted. The analyses described what consumers usually used the blender for and why they break. The area analysis was used for making specifications and later on for setting up material and knife tests.In the same time as the area analysis was conducted a list of plastic materials was set up. The plastic list also included some glass materials because there is lots of a glass material in kitchen applications. Based on the specifications and the plastic list, five different materials were selected to be tested. These materials were tested in the areas of temperature and UV resistance, chemical resistance and scratch and shock resistance.The blender knives where tested in three different lengths, the original knife of 43 mm, the middle length of 40 mm and the shortest length of 37 mm. The two new smaller knives where made by the test department at Ankarsrum. These knives where tested in the areas of durability, efficiency and strength. Tritan TX 1501 HF was the material that conducted the material tests best, all thought it did not pass the shock resistance test. Before this material is used in production, it would be good to examine why it did not pass that test. Of the three different knives it was the original length of 43 mm that passed the tests best. It took a little longer time before the overload protection kicked in when using the shorter knives, but these time savings where not enough to overlook the poorer result when mixing food.

Place, publisher, year, edition, pages
Keyword [en]
Keyword [sv]
Teknik, Materialval, design, utveckling, BPA, polykarbonat, PC, jämförelse plaster, Bisphenol A
URN: urn:nbn:se:ltu:diva-45640Local ID: 3515df04-0b9d-4bc0-a482-218a415d55bbOAI: diva2:1018936
External cooperation
Subject / course
Student thesis, at least 30 credits
Educational program
Industrial Design Engineering, master's level
Validerat; 20140403 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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Lindquist, Elisabeth

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