Black passivation treatment method of steel surface
A black passivation treatment method of a steel surface is described, which includes the following steps. An electroplating bath is provided, in which the electroplating bath includes a chromic acid solution and a blackening agent. An electroplating step is performed on a surface of a steel substrat...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
16.01.2014
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Subjects | |
Online Access | Get full text |
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Summary: | A black passivation treatment method of a steel surface is described, which includes the following steps. An electroplating bath is provided, in which the electroplating bath includes a chromic acid solution and a blackening agent. An electroplating step is performed on a surface of a steel substrate by using the electroplating bath, so as to form a black passivation layer on the surface of the steel substrate. |
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Bibliography: | Application Number: TW20120125397 |