Baths and process for the chemical polishing of stainless steel

Details Baths and process for the chemical polishing of stainless steel Baths and process for the chemical polishing of stainless steel

1995-05-25

1997-02-04

El-Arini, Zeinab

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 2, 134 41, 252 792, 252 794, C09K 1300, C09K 1304, C23G 102, C23F 306

Patent

active

055993990

ABSTRACT:
Process for chemical polishing of austenitic stainless steel surfaces using chemical polishing baths effective at a slow rate of reaction. The baths include in an aqueous solution a mixture of hydrochloric acid, nitric acid and phosphoric acid, an optionally substituted hydroxybenzoic acid, at least one quaternary ammonium salt and an additive chosen from perchloric acid and water-soluble salts of perchloric acid.

REFERENCES:
patent: 2446060 (1948-07-01), Henry et al.
patent: 3125475 (1964-03-01), Sidney et al.
patent: 3709824 (1973-01-01), Oda et al.
patent: 5135610 (1992-08-01), Tytgat et al.
patent: 5209820 (1993-05-01), Tytgat et al.

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