Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
Dual Flash Chrome
adv.
Q. In your introduction to chrome plating you talk about the hard chrome and the decorative chrome processes. I have run into a requirement that I know little about. It is called dual flash chrome. Can you tell me the process required to complete requirement. Also can you compare this process to the others. I know that the chrome plate includes numerous cracks through the thickness. Does the dual flash process change the structure on cracks some how? I will appreciate any input you might be have for me.
Fred B [last name deleted for privacy by Editor]Manufacturing - Watertown, South Dakota, USA
2004
2004
A. A "flash" of any plating is generally a very thin coating, Fred. I have seen applications called flash chrome plating which consisted of depositing the chrome directly on a steel substrate (as in hard chrome) but only plating for 45 seconds or so, as in decorative chrome plating. This was done on saw blades to reduce the friction, and I don't know if it really works, only that a saw blade manufacturer specs it. I have never heard the term 'dual flash chrome'.
Experience here has shown that better and faster answers will come if you describe your actual situation rather than posting in the abstract. Thanks.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
A. Double chrome may be old term for the plating of molds. Single chrome Plate .0005 in. polish. Double chrome,.0005 in., polish, plate .0005 in., polish . Triple chrome .0005 in., polish. chrome .0005 in., polish, chrome .0005 in., polish. One day someone figured out that .001-.0015 in. chrome and polish worked just fine and those terms are pretty rare now.
Todd Osmolski- Charlotte, North Carolina, USA
2004
A. If the terminology was used to assert thickness, then it is nothing but fortunate to have abandoned it. Only very simple geometries help for estimating the thickness of chrome with some precision. In the case of molds, their geometry is generally complicated (by definition), and the thickness of chrome is just a theoretical average at the best. More so after several polishes.
Guillermo MarrufoMonterrey, NL, Mexico
2004
Q. What is the difference between flash chrome plating and chrome plating? Whether only flash chrome plating plants/equipments are available in the market? Compare flash chrome plating with hard chrome plating.
Amit AgrawalAsst. Works Manager - Maharastra, India
2007
A. Hard Chromium is usually deposited directly on to hardened steel and is thick enough that the hardness can be measured, Amit. Usually several ten-thousandths of an inch to several thousandths of an inch. A flash would be a very thin coating, measured in millionths of an inch. But please try to put your inquiry into context because words and phrases can mean different things in different contexts.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2007
May 10, 2013
Q. Dear Sir / Madam
Currently we are processing hard chromium plating for our moulds and not getting life due to component sticking on mould.
I came to know flash that chrome plating is better.
What is the difference between flash chrome plating and hard chrome plating?
What is the process parameter for flash chrome plating?
I need above details to discuss with Plating supplier for doing flash chrome plating.
Regards,
Tool Designer - Chennai , Tamil Nadu , India
adv.
Q, A, or Comment on THIS thread -or- Start a NEW Thread