Electroplating
Porosity & Zinc Die Casts
A number of platers have told us that porosity on zinc diecasts can be reduced by plating with a heavy copper layer and then buffing to cover the pores. Is this a viable method or should we consider a different approach to solving this problem?
Read MoreA Packaging Problem
One of the problems we face is that during shipment some of these finishes are damaged from the jostling and vibration caused by transportation to various parts of the world. What type of packaging can we use to reduce damage to the parts?
Read MoreBlast Media
We recently changed our blast media from steel to alumina. We now find that the blasted areas of the parts do not plate. We also find that if we skip the acid dip step the parts will plate okay. What’s going on?
Read MoreHard Chrome or Electroless Nickel?
One of my fellow engineers has suggested that electroless nickel can be substituted in most cases for hard chrome. What are your thoughts on this?
Read MorePorous Deposits
Can you give me some general guidelines for reducing porosity in our plated deposits?
Read MoreBlack Oxide Problem
We find that 30–40% of the tools show salt bleed-out at the joints. Can you suggest anything we can do to solve this problem?
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