Process for simultaneous smoothing, cleaning, and surface protec

Details Process for simultaneous smoothing, cleaning, and surface protec Process for simultaneous smoothing, cleaning, and surface protec

1989-01-13

1991-09-10

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148253, 148252, C23C 2247, C23C 2208

Patent

active

050470957

ABSTRACT:
By using an aqueous solution containing a phosphoric acids or phosphate salts together with carboxylic acids containing at least two carboxyl groups per molecule along with conventional mass finishing, a wide variety of metal parts may be simultaneously deburred, cleaned, and provided with a surface with good resistance to corrosion in humid air. The solution used preferably also contains non-ionic surfactant, corrosion inhibitor, and, for use in hard water areas, a water hardness stabilizer.

REFERENCES:
patent: 3071456 (1963-01-01), Chessman
patent: 3268367 (1966-08-01), Nelson
patent: 3420715 (1969-01-01), Ayres
patent: 4153479 (1979-05-01), Ayano
patent: 4474626 (1984-10-01), Lemaret
patent: 4491500 (1985-01-01), Michaud
patent: 4705594 (1987-11-01), Zobbi
patent: 4724042 (1988-02-01), Sherman
patent: 4818333 (1989-04-01), Michaud

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