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 oct. 2020 - 10 pages
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.
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according to GB/T added to improve applicable atmosphere cause classification and code coating adhesion coating cannot withstand Coating type coatings at home coatings can withstand code comparison cold-rolled electrical steel comparison of coatings conventional stress relief core piece decomposition of organic Determination of resistance Determine according drafted edition electrical steel strip fillers films GB/T formed furnace greatly improve Group hardness heating and curing home and abroad improve the punching inorganic insulating coatings insulation properties Iron and Steel items and test kind lamination manufacturer Material methods of insulating Neutral non-oriented organic components Oriented electrical steel oxide layer Paints and varnishes punchability punching performance punching properties reach the best reduce references relief annealing temperature resistance and coating Song Standard steel strip sheet stress relief annealing suitable surface insulation resistance Table A.1 Technology temperature condition terms and definitions test methods Testing items usually welding process withstand the conventional Wuhan