Color coding of powder metal parts

Details Color coding of powder metal parts Color coding of powder metal parts

1982-11-17

1984-12-11

Lusignan, Michael R.

Metal treatment

Compositions

Heat treating

106193D, 106217, 427415, 427417, C23F 504, B05D 136, B05D 700

Patent

active

044876360

ABSTRACT:
A process for color coding of a sintered powder metal part is disclosed. The process comprises contacting said metal part with a color formulation comprising: from about 1 to 10 parts of a colorant, from about 1 to 5 parts of nitrocellulose, up to about 45 parts of an alkyl acetate, and the remainder an alcohol and continuing said contact until a color coating is deposited on said metal part.

REFERENCES:
patent: 1204709 (1916-11-01), Snelling
patent: 2012096 (1935-09-01), Conzetti
patent: 2649383 (1953-08-01), Killian et al.
patent: 3218243 (1965-11-01), Michelson
patent: 3515598 (1970-06-01), Schenkel
patent: 3639147 (1972-02-01), Benefiel et al.
patent: 4162348 (1979-07-01), Juzu et al.
patent: 4165242 (1979-08-01), Kelly et al.
patent: 4314005 (1982-02-01), Arias

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