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51. 发明专利

JPH01201464A PRODUCTION OF STEEL SHEET DRY-PLATED WITH TWO LAYERS 失效
公开(公告)号：JPH01201464A
公开(公告)日：1989-08-14
申请号：JP15504988
申请日：1988-06-24
申请人： KAWASAKI STEEL CO
发明人： IGUCHI MASAO , ITO ISAO
IPC分类号： C23C14/16
摘要： PURPOSE:To improve the adhesion and corrosion resistance of a coating film formed on the surface of a steel sheet in an atmosphere at a low degree of vacuum by forming the film consisting of two layers of different metals or metalloids by dry plating. CONSTITUTION:A first layer of a metal or metalloid is formed on the surface of a steel sheet such as a low carbon steel or stainless steel sheet by dry plating utilizing electric discharge with a hollow cathode or other method. A second layer of a metal or metalloid different from the metal or metalloid of the first layer is then formed on the first layer by similar dry plating. A metal or metalloid layer may be previously formed on the surface of the steel sheet by wet plating. A dry-plated steel sheet having a two-layered coating film exhibiting satisfactory adhesion and corrosion resistance is obtd.

52. 发明专利

JPH01176034A PRODUCTION OF GRAIN-ORIENTED MAGNETIC STEEL SHEET HAVING EXCELLENT MAGNETIC CHARACTERISTIC 失效
公开(公告)号：JPH01176034A
公开(公告)日：1989-07-12
申请号：JP33027087
申请日：1987-12-28
申请人： KAWASAKI STEEL CO
发明人： KOHO HIROSHI , ITO ISAO , IGUCHI MASAO
IPC分类号： C21D8/12
摘要： PURPOSE:To easily produce the title grain-oriented magnetic steel sheet having an excellent magnetic characteristic by appropriately welding the same oriented material to the edge of a steel sheet, and applying specified straining and annealing prior to the final finish annealing of a silicon-contg. cold-rolled steel sheet. CONSTITUTION:The hot rolling and cold rolling of a silicon-contg. steel slab, decarburization, and primary recrystallization annealing are applied. The same oriented material is welded to the edge of the steel sheet with the [001] axis inclined toward the rolling direction of the steel sheet at

53. 发明专利

JPS63278209A SILICON STEEL PLATE HAVING THERMOSTABLE, EXTREMELY LOW CORE LOSS, AND UNIDIRECTIONAL PROPERTIES 失效
公开(公告)号：JPS63278209A
公开(公告)日：1988-11-15
申请号：JP2400188
申请日：1988-02-05
申请人： KAWASAKI STEEL CO
发明人： IGUCHI MASAO , ITO ISAO
IPC分类号： C23C14/06 , C22C38/00 , H01F1/18
摘要： PURPOSE:To obtain a silicon steel plate having excellent thermostable and unidirectional properties without bring about the deterioration in the performance because of a high temperature treatment by forming a mixture phase among Fe atoms, accelarating ions, and evaporation inos between tension films on the polishing treatment surface of the silicon steel phate as a substrate. CONSTITUTION:A mixture phase with base steels is mainly formed with at least on kind of nitrides and/or carbides chosen out of the above nitrides and/or carbides of Ti, Zr, Hf, V, Nb, Ta, Mn, Cr, Mo, W, Co, Ni, Al, B, and Si at the surface of a unidirectional silicon steel plate where its finishing annealing is performed and non-metallic substances are removed or further at its flat surface finished by polishing and through the mixture phase with these base steels, tension films having a layer of 0.005-5 mum, at least are firmly deposited on the surface of the above steel plate and further, another tension film is deposited by putting it together with an insulation coating baking layer on the initial tension film. The film thickness of the tension films is adaptable within a range 0.005-5 mum. When it is less than 0.005 mum, it does not contribute toword necessary tension and on the other hand, when it exceeds 5 mum, space factor and adhesion decrease.

54. 发明专利

JPS63227722A MANUFACTURE OF GRAIN-ORIENTED MAGNETIC STEEL SHEET HAVING VERY SMALL IRON LOSS 失效
公开(公告)号：JPS63227722A
公开(公告)日：1988-09-22
申请号：JP3183388
申请日：1988-02-16
申请人： KAWASAKI STEEL CO
发明人： IGUCHI MASAO , ITO ISAO
IPC分类号： C21D8/12
摘要： PURPOSE:To obtain a grain-oriented magnetic steel sheet having a very small iron loss by mirror-finishing the surface of a finish-annealed grain-oriented magnetic steel sheet, partially producing small strain, forming a mixed phase contg. a group of fine grains and further forming a very thin tension film of a specified metallic compd. CONSTITUTION:A silicon steel sheet subjected to final cold rolling is finished- annealed, the surface oxide is removed and the surface of the steel sheet is mirror-finished to =500 deg.C by CVD, ion plating or other method to form a mixed phase contg. a group of fine grains of

55. 发明专利

JPS63227719A MANUFACTURE OF GRAIN-ORIENTED MAGNETIC STEEL SHEET HAVING VERY SMALL IRON LOSS 失效
公开(公告)号：JPS63227719A
公开(公告)日：1988-09-22
申请号：JP3183088
申请日：1988-02-16
申请人： KAWASAKI STEEL CO
发明人： IGUCHI MASAO , ITO ISAO
IPC分类号： C21D8/12 , C23C14/06 , C23C16/30 , C23C22/00 , C23C28/04
摘要： PURPOSE:To obtain a grain-oriented magnetic steel sheet having a very small iron loss by forming a nitride or carbide layer on the surface of a finish- annealed grain-oriented magnetic steel sheet, laminating a layer of a nitride or carbide of a different kind or an oxide, forming an insulating film, producing plastic strain and forming a film for insulation at low temp. CONSTITUTION:A rolled silicon steel sheet is finish-annealed, the surface oxide is removed and the surface of the steel sheet is mirror-finished to

56. 发明专利

JPS63192855A PRODUCTION OF LOW CARBON STEEL SHEET AND STAINLESS STEEL SHEET COATED WITH CERAMIC FILM HAVING SUPERIOR ADHESION, UNIFORMITY AND CORROSION RESISTANCE 失效
公开(公告)号：JPS63192855A
公开(公告)日：1988-08-10
申请号：JP2257487
申请日：1987-02-04
申请人： KAWASAKI STEEL CO
发明人： IGUCHI MASAO , ITO ISAO
IPC分类号： C23C14/06 , C23C14/32
摘要： PURPOSE:To improve the adhesion, uniformity and corrosion resistance of a ceramic film formed on the surface of a low carbon steel sheet or a stainless steel sheet by using a hollow cathode gun having a specified rate of ionization of an evaporated substance. CONSTITUTION:The surface of a low carbon steel sheet or a stainless steel sheet is cleaned and a ceramic film is formed on the surface by ion plating with a hollow cathode gun having >=50% rate of ionization of an evaporated substance. The ceramic film is made of one or more among nitride and carbide of one or more among Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Co, Ni, Al, B and Si and oxide of one or more among Al, Zn, Mn, Mg, Ti and Si. The adhesion of the ceramic film to the steel sheet, the uniformity and corrosion resistance can be improved by the increased rate of ionization.

57. 发明专利

JPS63130747A GRAIN ORIENTED SILICON STEEL SHEET HAVING EXCELLENT MAGNETIC CHARACTERISTIC AND ITS PRODUCTION 失效
公开(公告)号：JPS63130747A
公开(公告)日：1988-06-02
申请号：JP27734886
申请日：1986-11-20
申请人： KAWASAKI STEEL CO
发明人： KOHO HIROSHI , ITO ISAO , IGUCHI MASAO
IPC分类号： C23C14/06 , C21D8/12 , C22C38/00 , C22C38/12
摘要： PURPOSE:To improve both of a magnetic flux density and iron loss characteristic by effectively fining secondary recrystallization grains to improve the B10 value thereof and smoothing the surface of steel products and effectively utilizing a tension applied extremely thin film to improve the W17/50 value. CONSTITUTION:The linear strain which is along the transverse direction of a silicon steel sheet subjected to finish annealing and penetrates the sheet thickness is incorporated at 1-30% strain quantity into said steel sheet. The steel sheet is then subjected to gradient annealing under the conditions of >=700 deg.C and >=1 deg.C/cm temp. gradient across the transverse direction of the sheet; thereafter, the oxide on the surface of the steel sheet is removed and the surface is finished to a specular surface of =1 kinds of nitride and/or carbide of Ti, Nb, Si, etc., and oxide of Al, Si, Mn, etc., is formed by a vapor deposition method on such surface. The titled steel sheet having the linear recrystal region which extends in the transverse direction of the sheet by forming a grain boundary to the matrix, penetrates the sheet thickness, has >=1.0mm grain size and has within 10 deg. deviation of the axis in the rolling direction and having the above-mentioned extremely thin film is thereby obtd.

58. 发明专利

JPS63125673A METHOD AND DEVICE FOR REACTION TYPE FILM FORMATION AT HIGH SPEED 失效
公开(公告)号：JPS63125673A
公开(公告)日：1988-05-28
申请号：JP26993086
申请日：1986-11-14
申请人： KAWASAKI STEEL CO
发明人： NISHIIKE UJIHIRO , ITO ISAO
IPC分类号： C23C14/32
摘要： PURPOSE:To stably form a thin film having a desired compsn. in a physical vapor deposition method by specifying the electric current to be passed to an anode electrode between a substrate and evaporation source and the output of the electron beam to be applied to the evaporation source. CONSTITUTION:The anode electrode 2 and earth electrode 3 in a vacuum treatment vessel 1 are cooled by water cooling jackets 4. The electron beam is applied from a Pierce type electron gun 7 to a material 6 to be evaporated in a crucible 5 to melt and evaporate said material. A reactive gas is introduced into the vessel from a nozzle 10. >=100A current is passed to the anode electrode in the above-mentioned constitution and the output of the electron beam to be applied to the material 6 is specified to >=25kW, by which the film is formed on the substrate 9. The reaction is thereby accelerated and the thin film having the desired component compsn. is stably formed.

59. 发明专利

JPS6372862A PRODUCTION OF GRAIN-ORIENTED SILICON STEEL SHEET HAVING VERY SMALL IRON LOSS 失效
公开(公告)号：JPS6372862A
公开(公告)日：1988-04-02
申请号：JP21583586
申请日：1986-09-16
申请人： KAWASAKI STEEL CO
发明人： IGUCHI MASAO , ITO ISAO
IPC分类号： C23C14/02 , C23C14/06
摘要： PURPOSE:To make the iron loss of a grain-oriented silicon steel sheet very small by finishing the surface of the steel sheet to a specified average roughness, forming high temp. and low temp. regions on the surface and coating the surface with a surface film of TiN, TiC or the like by ion plating. CONSTITUTION:A silicon steel slab is hot rolled and the resulting hot rolled steel sheet is annealed. After oxide on the surface of the steel sheet is removed, the surface is finished to

60. 发明专利

JPS6256204B2 失效
公开(公告)号：JPS6256204B2
公开(公告)日：1987-11-25
申请号：JP20999081
申请日：1981-12-28
申请人： KAWASAKI STEEL CO
发明人： SHISHIDO HIROSHI , ITO ISAO , SHIMANAKA HIROSHI
IPC分类号： C21D6/00 , C21D8/12 , C22C38/00

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