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Die Casting Process for Keyboard Parts

Dongguan Shangjie Precision Hardware Co., Ltd

49
Website:
www.shangjiecnc.com, www.sphzincalloy.com

Die Casting Process for Keyboard Parts

1) During die casting, minimize segregation. If aluminum segregation occurs in certain parts, during degreasing, aluminum will first dissolve, creating pores and pinholes on the surface of the die casting that cannot be cleaned, resulting in poor adhesion, and causing peeling and blistering of the coating. 2) The residue from the process of die casting and machining should be cleaned as much as possible after processing. Because the residue is an active metal, it will react with the solution in any process of electroplating, damaging the plating solution and causing an impact on the electroplating quality. 3) During grinding and polishing, attention should be paid to controlling the size of the 0.05~0 A 1mm dense layer is very important for electroplating. When polishing, it is necessary to minimize the loss of the dense layer. If this layer is ground away, it will expose a porous structure, and a good electroplating layer will not be obtained on this layer. 4) The copper-nickel-chromi…

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