Metal treatment – Compositions – Heat treating
Patent
1977-09-14
1979-04-03
Hoffman, James R.
Metal treatment
Compositions
Heat treating
295274, 427 27, 427162, 427163, B05D 106, B05D 124, B05D 138, B05D 302
Patent
active
041475658
ABSTRACT:
The present invention relates to a process for the application of a reflecting coating on a metallic surface such as sheet metal, whereby there is applied to the unpolished metallic surface, a layer of a pulverulent dressing; said layer is subjected to a heat treatment with a view to fixing it on the metallic surface and creating a surface having undulations coexisting with micro-fissures; the layer thus fixed is smoothed by the deposit of a layer of varnish intended to fill in the micro-fissures while conserving said undulations, and the surface thus obtained is then subjected to a conventional metallization operation. The invention finds particular application to the production of reflectors having a high power of reflection.
Hoffman James R.
Societe Industrielle de Mecanique
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