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61. 发明专利

JPH0331764B2 失效
公开(公告)号：JPH0331764B2
公开(公告)日：1991-05-08
申请号：JP16370883
申请日：1983-09-06
申请人： KAWASAKI STEEL CO
发明人： IIDA YOSHIAKI , NISHIIKE UJIHIRO
IPC分类号： C22C38/00 , B22D11/00 , B22D11/124 , C21D8/12 , C22C38/02 , H01F1/16

62. 发明专利

JPH0258350B2 失效
公开(公告)号：JPH0258350B2
公开(公告)日：1990-12-07
申请号：JP13108386
申请日：1986-06-07
申请人： KAWASAKI STEEL CO
发明人： IGUCHI MASAO , SUZUKI KAZUHIRO , KOBAYASHI YASUHIRO , NISHIIKE UJIHIRO
IPC分类号： C23C14/32

63. 发明专利

JPH02232399A PRODUCTION OF LOW-IRON-LOSS UNIDIRECTIONALLY-ORIENTED SILICON STEEL SHEET HAVING EXTREMELY HIGH MAGNETIC FLUX DENSITY 失效
公开(公告)号：JPH02232399A
公开(公告)日：1990-09-14
申请号：JP5215289
申请日：1989-03-06
申请人： KAWASAKI STEEL CO
发明人： KAMI TSUTOMU , NISHIIKE UJIHIRO , ISHITOBI HIROTAKE , SUJITA SHIGEKO
IPC分类号： C23C22/00 , C21D8/12 , C23C14/04 , C25F3/06 , C25F3/22
摘要： PURPOSE:To produce the unidirectionally oriented silicon steel sheet of low iron loss having a high magnetic flux density by annealing the silicon steel sheet having a specific compsn., then anodically electrolyzing the steel sheet in an aq. halide soln. CONSTITUTION:The steel is composed to contain 0.025 to 0.060wt.% C, 2.0 to 4.0% Si, 0.01 to 0.20% Mn, 0.005 to 0.050% in total >=1 kinds of S and Se, and 0.003 to 0.050% at least one kind of As, Bi and Te. This silicon-contg. slab is subjected to hot rolling and one or >=2 passes of cold rolling including intermediate annealing to the final product thickness. The steel sheet is subjected to decarburization and primary recrystallization annealing and thereafter, an annealing and separating agent is applied thereon and the steel sheet is subjected to the final finish annealing. The steel sheet is thereafter subjected to the anodic electrolytic treatment in the aq. soln. contg. the water soluble halide. The steel sheet is then subjected to tension coating at need.

64. 发明专利

JPH02213484A PRODUCTION OF GRAIN ORIENTED SILICON STEEL SHEET EXCELLENT IN MAGNETIC CHARACTERISTIC 失效
公开(公告)号：JPH02213484A
公开(公告)日：1990-08-24
申请号：JP3281089
申请日：1989-02-14
申请人： KAWASAKI STEEL CO
发明人： NISHIIKE UJIHIRO , SUJITA SHIGEKO , ISHITOBI HIROTAKE , KAMI TSUTOMU
IPC分类号： B32B15/08 , B05D7/14 , C23C22/00 , C23C22/78
摘要： PURPOSE:To obtain the grain oriented silicon steel sheet excellent in adhesive properties of a coated film not to mention iron loss characteristics by performing smoothening treatment due to electrolysis in an aq. soln. contg. halide on the surface of the grain oriented silicon steel sheet after finishing secondary recrystallization annealing and coating a polymer of inorganic substance having flexibility on the surface thereof. CONSTITUTION:Oxide is removed by pickling from the surface of a grain orientated silicon steel sheet after finishing secondary recrystallization annealing in accordance with necessity. Thereafter electrolytic treatment is performed on the surface in an aq. soln. of water-soluble halide such as HCl and NaCl. As a result, a 'magnetically smooth' face which is extremely small in resistance for transfer of a magnetic domain wall is magnetically formed on the surface of this steel sheet. Then the surface of the steel sheet after finishing smoothening treatment is coated with a polymer of inorganic substance having flexibility. As this polymer of inorganic substance, the polymer having a bonding group of B, Si and O is favorably proper. In such a way, the grain oriented silicon steel sheet is obtained whose surface of the steel sheet after finishing smoothening treatment is effectively coated by insulated coating enriched in heat resistance not to mention adhesive properties without causing magnetic deterioration.

65. 发明专利

JPH029111B2 失效
公开(公告)号：JPH029111B2
公开(公告)日：1990-02-28
申请号：JP20128183
申请日：1983-10-27
申请人： KAWASAKI STEEL CO
发明人： KOMATSUBARA MICHIRO , IGUCHI MASAO , NISHIIKE UJIHIRO , ITO ISAO
IPC分类号： C22C38/00 , C21D8/12 , C21D9/46 , C23C22/00 , H01F1/16

66. 发明专利

JPH025821B2 失效
公开(公告)号：JPH025821B2
公开(公告)日：1990-02-06
申请号：JP20922983
申请日：1983-11-09
申请人： KAWASAKI STEEL CO
发明人： KOMATSUBARA MICHIRO , IGUCHI MASAO , NISHIIKE UJIHIRO , ITO ISAO
IPC分类号： C23C22/00 , C21D8/12 , C21D9/46

67. 发明专利

JPS6487115A CONTINUOUS COMPOSITE POLISHING DEVICE FOR METALLIC STRIP 失效
公开(公告)号：JPS6487115A
公开(公告)日：1989-03-31
申请号：JP23995187
申请日：1987-09-26
申请人： KAWASAKI STEEL CO
发明人： KOBAYASHI YASUHIRO , NISHIIKE UJIHIRO
IPC分类号： B23H5/00 , B23H5/06 , C25F3/16 , C25F7/00
摘要： PURPOSE:To enable achievement of uniform and high-efficient polishing with high smoothness throughout the whole width of a surface, by a method wherein, in a machinery polishing device, abrasives which electrolyte can penetrate are placed around a rotary shaft capable of being energized, and machinery polishing is performed simultaneously with electrolytic polishing. CONSTITUTION:In machinery polishing devices 4a-4c, abrasives 6a-6c which electrolyte can penetrate are situated on the peripheral surfaces of rotary shafts 5a-5c formed by an electric conductor, e.g. metals. The rotary shafts 5a-5c are mounted to an electrolytic bath 2 in a state to apply mechanical seal, and a carbon brush and the like is forced into contact with a shaft end protruded outwardly of the electrolytic bath 2 for energization. A substance in which organic fiber, e.g. polyester, is coated on a brush and non-woven cloth is used as the abrasives 6a-6c. In this way, composite polishing in which electrolytic polishing and machine polishing are simultaneously applied can be realized, and thus polishing throughout the whole width of a metallic strip can be uniformly and high-efficiently performed, and a metallic strip having excellent surface nature can be easily produced.

68. 发明专利

JPS6483619A PRODUCTION OF LOW IRON LOSS GRAIN ORIENTED SILICON STEEL SHEET 失效
公开(公告)号：JPS6483619A
公开(公告)日：1989-03-29
申请号：JP23995087
申请日：1987-09-26
申请人： KAWASAKI STEEL CO
发明人： SUJITA SHIGEKO , NISHIIKE UJIHIRO , KOBAYASHI YASUHIRO
IPC分类号： C21D8/12 , C25F3/24
摘要： PURPOSE:To produce a grain oriented silicon steel sheet having an excellent iron loss characteristic at a low cost by removing the surface oxide layer of the grain oriented silicon steel sheet subjected to finish annealing, then subjecting the surface to a polishing treatment to a specular surface of a specified polishing depth and annealing the steel sheet in a reducing atmosphere. CONSTITUTION:The grain oriented silicon steel sheet is prepd. by subjecting a slab consisting of a prescribed component compsn. to hot rolling and forming the sheet to the final sheet thickness by cold rolling including intermediate annealing, then subjecting the steel sheet to decarburization annealing and final finish annealing. After the oxide on the surface of this steel sheet is removed, the surface is subjected to the polishing treatment to the specular surface at >=0.5mu, more preferably about >=10mu polishing depth by electrolytic polishing. This steel sheet is annealed for about 10min-2hr at about 400-950 deg.C in the reducing atmosphere (CO, H2). The oxyhydroxide on the surface of the steel sheet is thereby easily decomposed and annihilated and the effective mirror- finished surface is obtd. The excellent iron loss characteristic is thus imparted to the steel sheet.

69. 发明专利

JPS6324053A PRODUCTION OF LOW CARBON STEEL SHEET AND STAINLESS STEEL SHEET PROVIDED WITH CERAMIC FILM HAVING SUPERIOR ADHESION 失效
公开(公告)号：JPS6324053A
公开(公告)日：1988-02-01
申请号：JP16671786
申请日：1986-07-17
申请人： KAWASAKI STEEL CO
发明人： IGUCHI MASAO , SUZUKI KAZUHIRO , KOBAYASHI YASUHIRO , NISHIIKE UJIHIRO
IPC分类号： C23C14/02 , C23C14/06
摘要： PURPOSE:To improve the adhesion of a ceramic film formed on the surface of a low carbon steel sheet or a stainless steel sheet by ion plating by previously subjecting the surface of the steel sheet to specified surface treatment. CONSTITUTION:When a film of ceramics such as TiC, TiN or TiCN is formed on the surface of a low carbon steel sheet or a stainless steel sheet so as to improve the corrosion resistance and decorativeness, the surface of the steel sheet to be treated is previously recrystallized, mirror-finished by electropolishing and heated to 100-300 deg.C with electron beams. The surface is then coated with ceramics such as TiC, TiN or TiCN by ion plating to form a thin ceramic film having superior adhesion.

70. 发明专利

JPS6320462A CONTINUOUS ION PLATING DEVICE 失效
公开(公告)号：JPS6320462A
公开(公告)日：1988-01-28
申请号：JP16353486
申请日：1986-07-14
申请人： KAWASAKI STEEL CO
发明人： SUZUKI KAZUHIRO , IGUCHI MASAO , NISHIIKE UJIHIRO , KOBAYASHI YASUHIRO
IPC分类号： C23C14/56
摘要： PURPOSE:To provide the titled device which can form a thick-walled strip with good adhesiveness even with a metallic strip which is continuously passed therethrough by installing a grid-shaped auxiliary electrode to the ionization section formed between an evaporating source and metallic strip respectively impressed with positive and negative voltages in such a manner that the electrode attaches to the strip on the inlet side of a treatment vessel and detaches therefrom on the outlet side thereof. CONSTITUTION:The metallic strip S impressed with the negative voltage is fed through an inlet side differential pressure chamber array 2 into the high vacuum treatment vessel 1. The ionization section is formed between the electron beam evaporating source 9 impressed with the positive voltage and the strip S impressed with the negative voltage and the above- mentioned auxiliary electrode 13 in the treatment vessel 1. The evaporating matter generated from the evaporating source 9 and the reactive gas introduced 17 into the vessel are excited and ionized by a high-frequency excitation coil 12 and are deposited in the form of a metal compd. on the surface of the strip S, by which the film is formed. Since the auxiliary electrode 13 is disposed in the above-mentioned manner, the thick film ceramic film of about 10mum having the high adhesiveness to the strip S is continuously coated on the strip. The formed film contributes to the improvement in various surface characteristics including the resistance to corrosion, oxidation, wear, etc.

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