Method for coating metal cookware

Details Method for coating metal cookware Method for coating metal cookware

1997-03-17

1998-10-27

King, Roy V.

Coating processes

With pretreatment of the base

Metal base

427560, 427456, 4273855, 427409, 205122, 205208, 205917, B05D 300, B06B 100

Patent

active

058275738

ABSTRACT:
A method for coating metal cookware includes the steps of (1) cleaning a cooking surface of the metal cookware; (2) roughening the cooking surface by blasting aluminum oxide particles against the cleaned cooking surface; (3) forming a scratch-resistant layer on the roughened cooking surface by electric-arc spraying an aluminum alloy onto the roughened cooking surface, the scratch-resistant layer covering about 50-90% of the area of the roughened cooking surface; (4) forming an oxide film on the scratch-resistant layer and the roughened cooking surface by anodic oxidation; and (5) applying an anti-stick film of fluorocarbon resin on the oxide film.

REFERENCES:
patent: 5132003 (1992-07-01), Mitani
patent: 5382347 (1995-01-01), Yahalom
patent: 5411771 (1995-05-01), Tsai
patent: 5462769 (1995-10-01), Tsai et al.
patent: 5545439 (1996-08-01), Deng et al.

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