Arthur S. Kushner Consultant
Contact
PLATING BATH TITRATIONS
We have now installed a small on-site laboratory and have a technician determine concentrations and “add” for our plating baths and some of our cleaners. The problem we now have is this: He does not have enough time to complete the titrations and calculate the “adds” in a timely fashion. Do you have any suggestions on how we can improve this process and reduce the time requirements?
Read MoreHARD NICKEL
We plate sulfamate nickel on steel components to build up worn areas. Recently we have found that the nickel is very hard and almost impossible to machine properly. What might cause this problem?
Read MoreBLACKENING OF STAINLESS STEEL
We are looking for information on a simple process for blackening of Type 420 stainless steel needles. The blackening should be permanent, corrosion-resistant and medically acceptable. Since the needles are small in size, the method should be capable of processing in bulk.
Read MoreRUSTING PARTS
Our customer requires a steel part to be plated with both nickel (0.00015–0.00030 inch) and zinc (0.00025–0.00030 inch). The part is sterilized in an autoclave prior to use. Why is it rusting, and how do you suggest we solve this problem?
Read MorePAINT ADHESION ON STAINLESS STEEL
We use stainless steel fasteners that have to be painted after assembly. We have tried a number of different processes, but adhesion of the paint has been poor. We would prefer a black finish. Do you have any suggestions?
Read MoreCracked Chrome
We have a problem with our hard chrome plate. A customer has stated that the hard chrome we are plating has “too many cracks” and the cracks are “too deep.” Where can we obtain additional information on how to control the cracking?
Read MoreCQI-11 Assessment
Recently our company was asked when we will implement the CQI-11 Plating System Assessment Program. Before we can do anything we must find out what it is. Do you have any information on this program?
Read MoreMakeup of a Woods Nickel Strike
I am confused about the makeup of a Woods nickel strike bath. Some of the terminology that is used is different than the terminology I learned in my chemistry classes. Can you give me some help with this problem?
Read MoreNickel-Iron Pitting Problems
We monitor surface tension and keep the value below 50 dynes/cm. The bath is agitated vigorously using a low-pressure air blower. Do you have any suggestions on how we might solve this problem?
Read MorePlating Floating Plastic Parts
We are trying to plate small plastic parts that float in the plating solution. The parts have an electroless copper coat and must be plated with nickel and gold. We would like to barrel plate the parts rather than rack them. Do you have any suggestions as to how this can be done?
Read MoreMore Blisters
We are plating Type 303 stainless steel with copper using a cyanide copper plating bath. After the completion of the cyanide plating step, we observe blisters on the surface of the parts. We use 5-gal tanks. What are we doing wrong?
Read More
