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PROCESS FOR THE FORMATION OF AN OXIDIC PROTECTIVE LAYER THAT PREVENTS CORROSION, ON ACOS, ESPECIALLY ACOS MARAGIN
PROCESS FOR THE FORMATION OF AN OXIDIC PROTECTIVE LAYER THAT PREVENTS CORROSION, ON ACOS, ESPECIALLY ACOS MARAGIN
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机译:防止腐蚀的氧化保护层在ACOS上形成的过程,尤其是在ACOS MARGAIN上
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摘要
A method is provided for forming an anti-corrosive oxide layer on steel. The steel surface is subjected to superheated steam for a period of one to several hours. Before subjecting the steel to the superheated steam, the steel surface is initially subjected to a gaseous formic acid atmosphere at a raised temperature of up to 480 DEG C. The treatment with superheated steam takes place during a further heating period in which a temperature between 450 DEG C. and 520 DEG C. is maintained under steam flow-through conditions in which the steam flow has a Reynolds number greater than 900.
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