Curated with aloha by
Ted Mooney, P.E. RET
The authoritative public forum
for Metal Finishing 1989-2025
-----
Problem of Brass finish burning off during sintering furnacing
Q. Good Afternoon,
My company is trying a new process, looking to get a shiny finish. We are using brass over the top of nickel on a ring, then furnacing the ring at 1550 °F in a reducing atmosphere. We start up 100% hydrogen, then switch to nitrogen for the cooling process. We are having all the brass burn off the part, and are left with a shiny appearance that looks almost like chrome. I am attempting to figure out exactly what is happening, and why my nice brass finish is disappearing.
Thank you,
Matt
- Akron Ohio
September 8, 2020
Junior Sales Representative - Resintech, Camden, NJ
Nadcap Chemical Processing Auditor - PRI, traveling
Process Engineer / Chemist - Denver Metal Finishing, Colorado
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Q, A, or Comment on THIS thread -or- Start a NEW Thread
Q, A, or Comment on THIS thread -or- Start a NEW Thread