zinc alloy die casting polishing part
To obtain the best finish on zinc die castings, a copper buff step needs to be done. After the initial polish and buff, the zinc die casting is electroplated with a heavy deposit of copper. After copper plating, the parts are then buffed again to further smooth out the surface. The final step is to activate the copper surface and electroplate with nickel and chromium.
Jun 12, 2020 · Zinc alloy die castings are a bit more difficult to electroplating than other substrates. This is because the chemical stability of the zinc alloy is not very good, and it is easier to be corroded when putting in acid and alkali solutions, and the parts have defects such as bubbles, cracks, and pin holes when the parts are die-casted. The way to avoid this shortcoming as much as possible is the pre-manufacturing treatment, such as rough inspection, mechanical grinding and polishing Wholesale Zinc Alloy Die Casting Polishing Manufacturers Zinc Alloy Die Casting Polishing Manufacturers, Factory, Suppliers From China, For further information, please do not hesitate to contact us. All inquiries from you will be highly appreciated.
A wide variety of zinc die casting polishing options are available to you, such as standard, processing service, and tolerance. MENU Polishing High Precision Auto Spare Parts Alloy Zinc Diecasting Part. US $2.11-$2.13 / Piece. 1.0 Pieces (Min. Order) 6 YRS Eng_Prop_F_Polishing and Plating - Zinc Die CastingAll of the zinc diecasting alloys featured in this publication can be readily polished and plated. Polished diecastings become highly reflective bluish white. Over time, the unprotected polished surface tarnishes to a dull grey colour.