Improving the design of nozzles used in zamak high-pressure die-casting process

Sousa, V.F.C.; Silva, Francisco J. G.; Ferreira, Luís Pinto; Campilho, R.D.S.G.; Pereira, Maria Teresa; Braga, E.

http://hdl.handle.net/10400.22/19653

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Authors

Sousa, V.F.C.

Silva, Francisco J. G.

Ferreira, Luís Pinto

Campilho, R.D.S.G.

Pereira, Maria Teresa

Braga, E.

Abstract(s)

The injection of light alloys is an activity that requires a high effort on the part of Engineering to maintain its competitiveness. Due to the temperatures used, the wear of the components connected to this manufacturing process is quite intense, requiring a constant updating effort. This work was developed with a view to solving problems related to the excessive wear of injection nozzles used in the die casting process, and corresponding electrical resistances, with a view to increase its lifetime and improve the competitiveness of the process in the injection of low-cost parts in zamak for the automotive industry. To study and solve the problems of premature wear of the injection nozzles, the action-research method was used, which, through several iterations, allowed to arrive at an improved design of the nozzle, as well as the corresponding electrical resistance, thus increasing the life span of these components, also improving safety around the process and generating knowledge that can be transferable to other similar situations.