"Based on online discussions & resources, the most comprehensive & highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, & more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."
-----
Problem: plating on zinc die cast
My plater faced problem, plating on the zinc die cast part (ZDC2). The part is casted by Dynacast proprietary 4-slider machine at 30 cycles/minute. The part is rather thin with basic thickness = 1.7mm & some core in area 0.5mm. The footprint is diameter 25mm. The processing is casting, degate, shot blast, machining (mirror finish on logo area) then plating. The part is semi- matte Cu/Ni/Cr plated with mirror finishing on the logo area.
The problem are:
a) dirty-liked stain on the basic surface
b) white patches on the mirror surface of the logo area
c) inconsistent of finishing, some times too matte and shining.
Wong Weng Fei
- Butterworth, Penang, Malaysia
Get some brass or copper coupons, and try to plate them with your plating line. Are some of the same problems occurring on the coupons?
Tom Pullizzi
Falls Township, Pennsylvania
Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories: