GB/T 38877-2020 Translated English of Chinese Standard. (GBT 38877-2020, GB/T38877-2020, GBT38877-2020): Insulating coatings for the electrical steel strip (sheet)
https://www.chinesestandard.net, 16/10/2020 - 10 páginas
This Standard specifies the terms and definitions, classification and code, testing items and test methods of insulating coatings for the electrical steel strip (sheet). This Standard is applicable to the insulating coating that is formed by coating on the surface of cold-rolled electrical steel strip (sheet) and surface oxidation through inorganic components, organic components and their compound preparation.
according to GB/T applicable classification and code Coated insulation resistance coating adhesion coating burning treatment coating can run coating cannot withstand Coating classification Coating type coatings at home coatings can withstand code comparison cold-rolled electrical steel comparison of coatings condition of 180°C conventional stress relief core piece Determine according electrical steel strip films GB/T furnace heating and curing high surface insulation high temperature environment improve the punching improving the magnetic inorganic insulating coatings insulation properties Iron and Steel items and test lamination methods of insulating organic components Oriented electrical steel oxide layer Paints and varnishes punchability punching performance punching properties referenced document relief annealing temperature resistance and coating Salt spray tests Standard steel strip sheet stress relief annealing surface insulation resistance terms and definitions test GB/T test methods Testing items type is organic Users shall consider welding process withstand conventional stress withstand the coating withstand the conventional Wuhan