System for the passivation of metal surfaces affected by operati

Details System for the passivation of metal surfaces affected by operati System for the passivation of metal surfaces affected by operati

1992-03-04

1994-04-26

Kastler, Scott

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148281, 20412935, C23C 812

Patent

active

053063554

ABSTRACT:
A system for the passivation of metal surfaces, and more especially those of stainless steel, titanium, etc., in equipment used for chemical processes, where elements and compounds are formed which have a corrosive action, in particular where temperature and pressure are higher than ambient conditions. In the system the main passivating agent is oxygen (air) combined with at least a second auxiliary agent, characterized by the fact that the latter is ozone (03).

REFERENCES:
patent: 5188714 (1993-02-01), Davidson et al.
Derwent publications, London, gb, nr. 40982c/23, week c23, Jul. 16, 1980 & su-a-44618 (lengd elec eng inst) Oct. 15, 1979, (Abstract).
wpil/derwent, abstract nr. 85-187612 c31, derwent publications, London, gb & jp-a-6-116760 (Hitachi) Jun. 24, 1985, (Abstract).

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