Wuxi Zhongxin Special Steel Co.,Ltd.
Mission: to be the demonstrator of high quality development of steel industry and the leader of future steel industry
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CRGNO Punching Three Phase Transformer Reactor EI 38 Core CRNGO Grade 600 470
Cold-rolled non-oriented silicon steel sheets are hot rolled steel slabs or continuous cast slabs into coils with a thickness of about 2.3 mm. When manufacturing low-silicon products, hot-rolled coils are pickled after cold rolling to a thickness of 0.5 mm. When manufacturing high silicon products, hot-rolled strips are pickled (or normalized at 800-850 ° C and then pickled), cold-rolled to 0.55 or 0.37mm thick, and annealed in a continuous furnace of hydrogen-nitrogen mixed atmosphere at 850 ° C, and then It is cold rolled to a thickness of 0.50 or 0.35mm through a 6-10% reduction ratio. Cold rolling with this small reduction rate can increase the grain size during annealing and reduce the iron loss.
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