The absorption resistance-oriented electrical steel sheet and the formation method of the phosphoric acid salt-based insulation coating with excellent resistance to moisture absorption does not contain chromium having an excellent phosphoric acid salt-based insulating film on the wet without chromium.

Invention Patent

JP4635457B2 The absorption resistance-oriented electrical steel sheet and the formation method of the phosphoric acid salt-based insulation coating with excellent resistance to moisture absorption does not contain chromium having an excellent phosphoric acid salt-based insulating film on the wet without chromium. 有权

Patent Title: The absorption resistance-oriented electrical steel sheet and the formation method of the phosphoric acid salt-based insulation coating with excellent resistance to moisture absorption does not contain chromium having an excellent phosphoric acid salt-based insulating film on the wet without chromium.
Application No.: JP2004054859

Application Date: 2004-02-27
Publication No.: JP4635457B2

Publication Date: 2011-02-23
Inventor: 之啓新垣 , 渡辺　　誠
Applicant: Jfeスチール株式会社
Assignee: Jfeスチール株式会社
Current Assignee: Ｊｆｅスチール株式会社
Priority: JP2004054859 2004-02-27
Main IPC: C23C22/00
IPC: C23C22/00 ; C25D11/36 ; C23C28/00 ; H01F1/16

Public/Granted literature

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Espacenet

IPC分类:

C	化学；冶金
C23	对金属材料的镀覆；用金属材料对材料的镀覆；表面化学处理；金属材料的扩散处理；真空蒸发法、溅射法、离子注入法或化学气相沉积法的一般镀覆；金属材料腐蚀或积垢的一般抑制
C23C	对金属材料的镀覆；用金属材料对材料的镀覆；表面扩散法，化学转化或置换法的金属材料表面处理；真空蒸发法、溅射法、离子注入法或化学气相沉积法的一般镀覆（挤压法制造包覆金属的产品入B21C23/22；通过将预先存在的薄层连接到制品上的方法用金属进行镀覆处理的见各有关位置，例如B21D39/00，B23K；玻璃的金属化入C03C；砂浆、混凝土、人造石、陶瓷或天然石的金属化入C04B41/00；金属的搪瓷或向金属上镀覆玻璃体层入c23D；用电解法或电泳法处理金属表面或镀覆金属入C25D；单晶膜生长入C30B；纺织品的金属化入D06M11/83；用局部金属化法装饰纺织品入D06Q1/04）
C23C22/00	表面与反应液反应、覆层中留存表面材料反应产物的金属材料表面化学处理，例如转化层、金属的钝化