Electroplating
Some More Blackening Problems
Our shop specializes in blackening of 300 and 400 series stainless steel. We sporadically have trouble with smut, staining and color differences on the parts. What can we do to minimize these problems?
Read MoreRestoring Zinc And Pot Metal Castings
How do you restore old zinc or pot metal castings used on classic automobiles?
Read More
Layers Of Nickel
Our company barrel plates small components using a nickel sulfamate plating bath. The bath also contains a small amounts of nickel bromide. The problem we have is the nickel appears to be layered and tends to delaminate during subsequent processing. Do you have any suggestions for solving this problem?
Read More
Black Spots On SG Cast Iron
We plate SG iron castings in a zinc acid chloride plating bath and then chromate with a classic hexavalent yellow chemical conversion bath. We recently we tried a trivalent yellow conversion coating, but after processing 30–40 jobs we observe black patches on the jobs immediately after processing. Is it possible that the iron impurities from the casting contaminate the chemical conversion bath and if so, how we can control the process?
Read More
Capture Heat from Exhaust Gases, Save Energy
Process heat recovery unit can provide heating and cooling
Read More
Overheated Nickel Sulfamate
We use a nickel sulfamate plating bath with a temperature range of 50–60°C to plate low stress micro-layers. Recently the temperature was allowed to reach 70°C. Did we ruin the plating bath because of this temperature upset? Can the plating bath be salvaged?
Read More
