专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH09143771A WRINGER ROLL 失效
公开(公告)号：JPH09143771A
公开(公告)日：1997-06-03
申请号：JP32788095
申请日：1995-11-24
申请人： NIPPON STEEL CORP
发明人： ISHIMORI YUICHI , TSUMURA YASUHIRO
IPC分类号： B21B39/00 , B21B45/02 , C23G3/02 , C25D7/06
摘要： PROBLEM TO BE SOLVED: To prolong the exchange life of a wringer roll which wrings the liquid sticking to the surface of a metallic strip after continuously treating the metallic strip with liquid while maintaining the liquid drawing property of the roll. SOLUTION: The wringer roll 5 has coating layers 2a, 2b, 2c, 2d,... of multilayer structures independently peelable by each of the respective layers from the outer side on the surface of a core roll 1. When the coating layer 2a of the extreme surface layer wears, only the coating layer 2a is peeled and the liquid wringing is continued with the coating layer 2b as the extreme surface layer. If the respective coating layers 2a, 2b, 2c, 2d are provided with cutting threads 3a, 3b, 3c, 3d..., the coating layers 2a, 2b, 2c, 2d are made easily peelable. The exchange life of the roll is prolonged more greatly than heretofore while the high liquid wringing property is maintained without requiring the intricate devices.

2. 发明专利

JPH06248493A CONDUCTIVE ROLL FOR ELECTROPLATING AND ITS PRODUCTION 失效
公开(公告)号：JPH06248493A
公开(公告)日：1994-09-06
申请号：JP3823993
申请日：1993-02-26
申请人： NIPPON STEEL CORP
发明人： IZUMI SHINGO , AYAGAKI MASATOSHI , TSUMURA YASUHIRO , OHORI JUNJI
IPC分类号： B22F3/14 , B22F5/00 , C22C19/05 , C25D7/06
摘要： PURPOSE:To produce a sintered conductive roll exceedingly excellent in electric corrosion resistance as well as wear resistance by constituting a conductive roll of a sintered body in which the crystalline grains of alloy powder having specified components are formed into ultra-fine ones. CONSTITUTION:This is a sintered body of alloy powder contg., by weight,

3. 发明专利

JPH1058159A ENERGIZING ELECTRODE OF FLASH BUTT WELDING MACHINE 失效
公开(公告)号：JPH1058159A
公开(公告)日：1998-03-03
申请号：JP22141996
申请日：1996-08-22
申请人： NIPPON STEEL CORP
发明人： OISHI NAOKI , WATANABE KIWAMU , TSUMURA YASUHIRO
IPC分类号： B23K11/04 , B23K11/30
摘要： PROBLEM TO BE SOLVED: To improve the productivity by dispersely arranging the wear resistant material on a clamp surface of a work to be welded of energizing electrodes to improve the service life of the energizing electrode and to improve the working rate of the equipment. SOLUTION: The resin is coated on a surface of a clamp 6 of a work to be welded of energizing electrodes 4, 4a and a groove 7 is cut in a lattice shape. After the wear resistant material 10 is filled in the groove 7 over the resin through the plating, the resin and the wear resistant material projected on the surface are removed through cutting, and the wear resistant material is dispersely arranged on the surface of the clamp 6 of the work to be of the energizing electrodes 4, 4a. The width of the groove 7 of, for example, approximately 5mm, is sufficient, and the depth of, e.g. 0.5-5mm can surely provide the wear resistance. The wear resistance can surely be provided by providing the wear resistant material arranged in the groove 7 of the lattice shape in which the angle α relative to the advancing direction of the work of e.g. 0 deg.

4. 发明专利

JPH09316624A POSTTREATING METHOD FOR SPRAYED COATING FILM 失效
公开(公告)号：JPH09316624A
公开(公告)日：1997-12-09
申请号：JP15473196
申请日：1996-05-28
申请人： NIPPON STEEL CORP
发明人： HAMAYA HIDEKI , KITAGUCHI SABURO , MIYAZAKI YASUNOBU , OBARA MASAHIRO , SHIMAZU TSUTOMU , SATO SHINJI , TSUMURA YASUHIRO
IPC分类号： C23C4/02 , C23C4/08 , C23C4/10 , C23C4/18
摘要： PROBLEM TO BE SOLVED: To provide a posttreating method for improving the adhesive strength of sprayed coating film without applying thermal influence and thermal deformation to a stock. SOLUTION: As for the sprayed coating film of an Ni base alloy, Co base alloy, Fe base alloy or the like with 0.5 to 1mm thickness formed on the surface of the stock, the region from the surface of the coating film to the boundary between the stock and coating is melted under heating by an electron beam in such a manner that the oscillation width of the beam is regulated to 5 to 20mm, the output of the beam is regulated to 4.0 to 10.0kW, the beam mode is composed of chopping waves or sine waves, the frequency is regulated to 500 to 50000Hz, the treating rate is regulated to 100 to 2000mm/min, and the focus degree is regulated to >=±50mm.

5. 发明专利

JPH09165667A THERMAL SPRAYING METHOD 失效
公开(公告)号：JPH09165667A
公开(公告)日：1997-06-24
申请号：JP32315895
申请日：1995-12-12
申请人： NIPPON STEEL CORP
发明人： SAWA MASAAKI , AZUMA YOSHIAKI , SATO SHINJI , TSUMURA YASUHIRO
IPC分类号： B05D1/08 , C23C4/12
摘要： PROBLEM TO BE SOLVED: To improve the adhesion, productivity or the like of sprayed coating, at the time of projecting a thermal spray material obtd. by half-melting a spray powder material onto the body to be thermally sprayed and executing thermal spraying, by separately and simultaneously thermal-spraying the thermal spray material with different items such as grain size. SOLUTION: For example, at the time of forming sprayed coating 3 onto the thermal spraying face 2 in the body 1 to be thermally sprayed, e.g. a thermal spray material 4 having large grain size is thermally sprayed from a thermal spraying gun 5 and a thermal spray material 4a having small grain side from a thermal spraying gun 5a on the body 1 to be thermally sprayed from different angles respectively separately in the horizontal directions at the same time. Thus, pares generated in the sprayed coating 3 by the projection of the thermal spray material 4 having large grain size can be burried by the thermal spray material 4a having small grain size, by which the adhesion of the sprayed coating 3 to the body 1 to be thermally sprayed improves, and, as for the sprayed coating 3 itself, its porosity reduces, and it is made dense to form into rigid sprayed coating.

6. 发明专利

JPH09165665A THERMAL SPRAYING METHOD 失效
公开(公告)号：JPH09165665A
公开(公告)日：1997-06-24
申请号：JP32315695
申请日：1995-12-12
申请人： NIPPON STEEL CORP
发明人： SAWA MASAAKI , AZUMA YOSHIAKI , SATO SHINJI , TSUMURA YASUHIRO
IPC分类号： B05D1/08 , C23C4/12
摘要： PROBLEM TO BE SOLVED: To reduce the thermal spraying time, to improve the productivity and furthermore to improve the yield of a tharmal spray material and the adhesion of sprayed coating, at the time of projecting a thermal spray material obtd. by half-melting a thermal spray powder material and executing thermal spraying, by surrounding the projected and flown thermal spray material by a gas. SOLUTION: For example, a combustion chamber 2 in a thermal spraying gun 1 is fed with fuel and a combustion assisting gas from a fuel feed tube 3 and a combustion assisting gas feed tube 4, and combustion is executed. On the other hand, a thermal spray powder material is fed from a feed port 5 and is heated, which is halt-melted into a thermal spray material 6, and this is projected onto the body 7 to be thermally sprayed and is thermally sprayed. In this case, the thermal spray material 6 projected and flown between the tip of the thermal spraying gun 1 and the body 7 to be thermally sprayed is thermally sprayed onto the body 7 to be thermally sprayed while it is surrounded by a gas 9 injected to the body 7 to be thermally sprayed from a gas injection port 8 at the tip of the thermal spraying gun 1.

7. 发明专利

JPH09195030A THERMAL SPRAY COATING METHOD FOR MAGNETIC CYLINDRICAL BASE MATERIAL 失效
公开(公告)号：JPH09195030A
公开(公告)日：1997-07-29
申请号：JP316296
申请日：1996-01-11
申请人： NIPPON STEEL CORP
发明人： SAWA MASAAKI , SATO SHINJI , TSUMURA YASUHIRO , ISHIMORI YUICHI
IPC分类号： C23C4/10 , C23C4/18
摘要： PROBLEM TO BE SOLVED: To improve the adhesion of sprayed coating film on a base material and to increase its durability by forming nonmagnetic sprayed coating on the surface of a magnetic cylindrical base material, applying high-frequency from the surface of this sprayed coating to heat the surface layer part of the base material and diffusing the surface layer part of the base material into the sprayed coating film. SOLUTION: Nonmagnetic sprayed coating film 2, e.g. of WC-Co is formed on the surface of a magnetic cylindrical base material 1 (such as a pipe made of steel). After that, while a high-frequency induction heating work coil 3 is moved in the longitudinal direction of the base material 1, high-frequency is applied to the surface of the sprayed coating film 2, and the surface layer part of the base material 1 is heated. Thus, the base material 1 thermally expands to apply face pressure to the sprayed coating film 2, the adhesion of the sprayed coating to the base material 1 increases, and the metallic atoms of the base material diffuse into the sprayed coating film 2 to remarkably improve the durability of the sprayed coating 2.

8. 发明专利

JPH09165666A THERMAL SPRAYING METHOD 失效
公开(公告)号：JPH09165666A
公开(公告)日：1997-06-24
申请号：JP32315795
申请日：1995-12-12
申请人： NIPPON STEEL CORP
发明人： SAWA MASAAKI , AZUMA YOSHIAKI , SATO SHINJI , TSUMURA YASUHIRO
IPC分类号： B05D1/08 , C23C4/12
摘要： PROBLEM TO BE SOLVED: To improve the adhesion of sprayed coating, at the time of projecting a thermal spray material obtd. by melting a thermal spray powder material onto the body to be thermally sprayed and executing thermal spraying, a vibrating the body to be thermally sprayed. SOLUTION: For example, at the time of projecting a thermal spray material in a half-melted state onto the body 2 to be thermally sprayed from a thermal spraying gun and forming sprayed coating 3, the thermal spraying is executed while the body 2 to be thermally sprayed is vibrated. Thus, the thermal spray material 1 projected onto the surface of the body 2 to be thermally sprayed deforms at the moment when it is in contact with the surface of the body 2 to be thermally sprayed, and in a state of being extended in the vibrating direction of the body 2 to be thermally sprayed and also in a way of being laminated, the mutual contact area expands, and the porosity in the sprayed coating 3 remarkably reduces to form into the sprayed coating 3 improved in denseness (the strength of the sprayed coating 3). Simultaneously, the contact relative rate between the thermal spray material 1 and the body 2 to be thermally sprayed increases to improve the adhesion of the sprayed coating 3 to the body 2 to be thermally sprayed.

9. 发明专利

JPH09157826A PROCESS ROLL FOR CARRYING COLD STEEL STRIP 失效
公开(公告)号：JPH09157826A
公开(公告)日：1997-06-17
申请号：JP31252195
申请日：1995-11-30
申请人： NIPPON STEEL CORP
发明人： SAWA MASAAKI , AZUMA YOSHIAKI , SATO SHINJI , TSUMURA YASUHIRO
IPC分类号： F16C13/00 , B21B39/00 , C23C4/10
摘要： PROBLEM TO BE SOLVED: To improve the wear resistance of a process roll and suppress the meandering of a cold steel strip by forming sprayed coating of cermet or ceramics having specified roughness on the surface of a process roll for carrying a cold steel strip. SOLUTION: Recessed parts 2 and projected parts 3 are formed on the surface of a process roll 1 such as a deflector roll, a pinch roll or the like for carrying a cold steel strip by shot blasting or the like, which is worked so as to regulate the roughness Ra of the roll to 1 to 10. Next, on this surface, sprayed coating 4 of cermet composed of metal or alloy such as Ni, Ni-Cr or the like and ceramics such as WC, TiC, NbC or the like or of ceramics such as WC, TiC, NbC or the like is formed by 5 to 20μm thickness. The wear resistance of the roll improves, and, by using the roll, the meandering of the steel strip to be carried can be prevented.

10. 发明专利

JPH10121101A CONDUCTIVE ROLL FOR ELECTROPLATING 失效
公开(公告)号：JPH10121101A
公开(公告)日：1998-05-12
申请号：JP27910796
申请日：1996-10-22
申请人： NIPPON STEEL CORP
发明人： IZUMI SHINGO , AYAGAKI MASATOSHI , HIRATA MASAHIRO , TSUMURA YASUHIRO , HIRATA KIYOTO
IPC分类号： B22F1/00 , B22F3/14 , B22F5/00 , C22C19/05 , C25D7/06
摘要： PROBLEM TO BE SOLVED: To provide a conductive roll for electroplating made of HIP in which pit corrosion is remarkably improved. SOLUTION: This conductive roll is composed of a sintered body of gaseous nitrogen atomizing powder of alloy powder contg., by weight, .

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式