Process for shaping lacquered metal substrates

Details Process for shaping lacquered metal substrates Process for shaping lacquered metal substrates

1990-12-21

1992-08-25

Larson, Lowell A.

Metal deforming

With 'coating' of work

2041806, 2041802, B21B 4500

Patent

active

051408350

ABSTRACT:
A process for shaping a metal substrate lacquered by a cathodic electro dip process and then baked, involving heating the lacquered and baked substrate to a temperature between a lower limit of from about 30.degree. C., suitably 20.degree. C., below the glass transition temperature of the lacquer and an upper limit of just below the decomposition temperature thereof, and then shaping the coated and baked substrate in the thus heated state. Shaping of the lacquered, baked substrate is suitably carried out by rolling, pressing, crimping, or dimpling.

REFERENCES:
patent: 3206848 (1965-09-01), Rentmeester
patent: 3936368 (1976-02-01), Watanabe et al.
patent: 4562714 (1986-01-01), Tanaka et al.

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