Baoshan Iron & Steel Co., Ltd.

Dengfeng Li

Xiao Ling Chen

Jie Huang

Bo Wang

Guobao Li

Yongjie Yang

Zipeng Zhao

Yaming Ji

Yueming Zhou

Xiaoli Jin

Yunpeng Xu

Lingyun Chen

Xiao Chen

An induction heating system for a silicon steel core with a self-adhesive coating that includes an induction heating device having a columnar induction heating coil with a hollow cavity that carries out induction heating on a silicon steel plate at a medium frequency of 6-20 KHz. By rapid induction heating at a medium frequency, a silicon steel core with a self-adhesive coating can be rapidly cured, thereby greatly shortening the processing time, improving production efficiency, and facilitating automated operation in the production of a silicon steel core with a self-adhesive coating. The system also ensures the quality of the cured core products that can be widely applied in the field of the production of silicon steel cores with a self-adhesive coating.

Induction heating system and method for silicon steel core with self-adhesive coating

The present invention refers to a chromium-free insulation coating material for non-oriented silicon steel, comprising, in parts by weight, the following components: metal dihydrogen phosphate salt of 100 parts, epoxy resin of 10&#x2dc;60 parts, naphthenate drier or isooctanoate metal salt drier of 0.001&#x2dc;10 parts, organic solvent of 0.001&#x2dc;100 parts and pure water of 60&#x2dc;2000 parts. The metal dihydrogen phosphate salt is Al(HPO), Mg(HPO), Ca(HPO)or Zn(HPO); the epoxy resin is water-soluble epoxy resin or epoxy resin emulsion. Chromium-free insulation coating material of the present invention, after being coated on non-oriented silicon steel, renders highly transparent appearance, and has excellent insulativity, corrosion resistance, adhesiveness, weldability and manufacturability, so as to eliminate defects of the existing chromium-free coating, such as sticky and un-wear-resistant and to meet environment protection requirements.

Chromium-free insulation coating material for non-oriented silicon steel

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Shanghai, China

Dengfeng Li