Nytt spritsrör på TwinRoll typ TRPE: Undersökning av kostnad på spritsrör
Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
This thesis describes possibilities for Metso Paper to lower their costs of spray pipes for their pulp wash press TRPE, with maintained good functionality and quality.
Information that can be used by competitors has been censored in this version of the essay.
To find solutions, alternative suppliers have been contacted and asked to quote. There has also been a new spray pipe designed. The manufacturing costs of the new design have been calculated.
The thesis also contains a concept generation of an alternative product to the spray pipes in installations where a high pressure washer is used.
To be able to ask other manufacturers of spray pipes to quote, a demand specification based on the currently used spray pipe was made. This was then sent to two alternative suppliers.
An investigation of earlier used spray pipes, and the currently used, shows that the nozzles are a big part of the total costs of the spray pipes. To attempt to reduce the nozzles high cost an concept generation was made to find the best solution for a new design.
There was a request that it should be possible to change the internal brushes in the spray pipe without cutting and welding. A concept generation was made to find a solution to easily change the brushes.
When the results of the projects different parts were delivered, they were compared to each other to find the best overall solution to lower the costs of the spray pipes. The conclusion of this project is that the currently used spray pipe not is overpriced and therefore in short term the best option is to continue using the current supplier. There have though been some discussions regarding manufacturing of the newly designed spray pipe in cost competitive countries. It seems like the costs can be reduced if manufacturing the spray pipe or parts of the spray pipe in E.g. China.
Place, publisher, year, edition, pages
2013. , 51 p.
Konstruktion, CAD, Kostnadseffektivisering
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-202338ISRN: ISRN UTH-INGUTB-EX-M-2013/18-SEOAI: oai:DiVA.org:uu-202338DiVA: diva2:631907
Bachelor Programme in Mechanical Engineering
Hedblom, Anders, Product Design Engineer
Degerman, LarsAldman, Claes