Standard ID | SJ 1277-1977 (SJ1277-1977) |
Description (Translated English) | Quality inspection rules for the acceptance of metallic coatings and chemically treated layers |
Sector / Industry | Electronics Industry Standard |
Classification of Chinese Standard | L10 |
Word Count Estimation | 3,339 |
Date of Issue | 1978/3/1 |
Date of Implementation | 1978/3/1 |
Older Standard (superseded by this standard) | SJ 43-1964 |
Regulation (derived from) | Industry-Science (2010) No.77 |
Summary | This standard applies to the appearance of the metal plating and chemical treatment layer, the metal coating hardness, with the polarity of the metal coating porosity, adhesion of the coating and substrate metal, metal plating and chemical treatment layer of corrosion, metal plating and chemical treatment layer The thickness of aluminum and aluminum alloys as well as acceptance of electrical insulation properties. |