公开(公告)号：EP2322674A4

公开(公告)日：2016-11-30

申请号：EP09804456

申请日：2009-04-24

申请人： BAOSHAN IRON & STEEL

发明人： JI YAMING ,  SUN HUANDE ,  YANG GUOHUA ,  YANG YONGJIE ,  XU YUNPENG ,  HUANG CHANGGUO ,  LI GUOBAO

IPC分类号： C21D8/12 ,  C22C38/16

CPC分类号： C22C38/04 ,  C21D1/26 ,  C21D6/008 ,  C21D8/02 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1266 ,  C21D8/1283 ,  C21D10/005 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06 ,  C22C38/16

摘要： A method of manufacturing oriented Si steel containing Cu with high electric-magnetic property comprises: hot rolling slab; after first cold rolling, heating it to 800°C or higher temperature and performing intermediate decarburization annealing in a protective atmosphere with P H2O /P H2 of 0.50ˆ¼0.88 for 3-8 minutes, to decrease carbon content of the steel plate to less than 30ppm; then peening and acid-pickling to remove oxide of Fe on surface and to control oxygen content to lower than 500ppm; secondary cold rolling to final thickness and coating separation agent in water-slurry form; drying to decrease water content to lower than 1.5%; high-temperature annealing in a protective atmosphere containing hydrogen with oxidation degree (P H2O /P H2 ) of 0.0001-0.2; finally applying a tension coating and leveling tension annealing.

公开(公告)号：EP2623566A4

公开(公告)日：2014-05-07

申请号：EP11827948

申请日：2011-04-13

申请人： BAOSHAN IRON & STEEL

发明人： XU YUNPENG ,  YANG YONGJIE ,  LI DENGFENG ,  JI YAMING ,  ZHAO ZIPENG ,  CHEN LINGYUN ,  CHEN XIAO ,  HUANG JIE

IPC分类号： C09D5/25 ,  C09D7/12 ,  C09D163/00

CPC分类号： C09D5/00 ,  C09D5/084 ,  C09D7/61 ,  C09D163/00 ,  H01B3/40

摘要： The present invention refers to a chromium-free insulation coating material for non-oriented silicon steel, comprising, by mass shares, the following components: metal dihydrogen phosphate salt of 100 shares, epoxy resin of 10~60 shares, naphthenate drier or isooctanoate metal salt drier of 0.001~10 shares, organic solvent of 0.001~100 shares and pure water of 60~2000 shares. The metal dihydrogen phosphate salt is Al(H 2 PO 4 )3, Mg(H 2 PO 4 ) 2 , Ca(H 2 PO 4 ) 2 or Zn(H 2 PO 4 ) 2 ; 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.

公开(公告)号：EP2634270A4

公开(公告)日：2018-01-17

申请号：EP11835488

申请日：2011-04-14

申请人： BAOSHAN IRON & STEEL

发明人： ZHAO ZIPENG ,  JI YAMING ,  YANG YONGJIE ,  LI GUOBAO ,  LI DENGFENG ,  XU YUNPENG

IPC分类号： C21D1/68 ,  C21D1/70 ,  C21D3/04 ,  C21D8/12

CPC分类号： C21D1/70 ,  C21D1/26 ,  C21D1/68 ,  C21D3/04 ,  C21D8/12 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  H01F1/16

摘要： An annealing separator for manufacturing grain-oriented silicon steel with mirror-like surface having good magnetic performance consists of the composition of which is 77-98 by wt% of Al 2 O 3 powder, 1-8 by wt% of alkaline earth powder, 1ˆ¼15 by wt% of alkali metal chloride and/or alkaline earth metal chloride. The annealing separator of the invention can avoid forming a glass-film undercoating on the surface of the steel sheet during high-temperature annealing, and at the same time, the oxide embedded at near-surface of the sheet is removed by means of corrosive reaction of the chloride, so that a produce with smooth surface and stable magnetic performance is obtained.

公开(公告)号：EP2272995A4

公开(公告)日：2011-06-08

申请号：EP09725052

申请日：2009-03-25

申请人： BAOSHAN IRON & STEEL

发明人： YANG GUOHUA ,  SUN HUANDE ,  JI YAMING ,  LI GUOBAO ,  HEI HONGXU

IPC分类号： C22C38/16 ,  C21D3/04 ,  C21D6/00 ,  C21D8/02 ,  C21D8/12 ,  C21D9/46

CPC分类号： C22C38/02 ,  C21D1/26 ,  C21D3/04 ,  C21D6/008 ,  C21D8/02 ,  C21D8/0278 ,  C21D8/0284 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1266 ,  C21D8/1283 ,  C21D9/46 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16