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1. 发明专利

JPH01139750A FAR INFRARED RADIATOR EXCELLENT IN CORROSION RESISTANCE AND ITS PRODUCTION 失效
公开(公告)号：JPH01139750A
公开(公告)日：1989-06-01
申请号：JP29768987
申请日：1987-11-27
申请人： KAWASAKI STEEL CO , OSAKA GAS CO LTD
发明人： ISHII KAZUHIDE , KAWASAKI TATSUO , HIRONO TANEO , AZUMA TAKESHI , SUZUKI SHIGEHARU , NAKASHIBA AKIO , DOI SHOJI , MITSUTOMI HIROYUKI , MIYAZAKI SOHEI , KITAHATA HIROKI
IPC分类号： C23C8/18 , H05B3/10
摘要： PURPOSE:To manufacture a far infrared radiator excellent in far infrared radiation characteristics and corrosion resistance by applying blasting treatment to the surface of an Fe-Cr-Al-type stainless steel sheet with a specific composition and then subjecting the above surface to high-temp. oxidation treatment in an oxidizing atmosphere under specific conditions. CONSTITUTION:Blasting treatment with SiC or steel shots is applied to the surface of an Fe-Cr-Al-type stainless steel sheet having a composition consisting of, by weight, 12-28% Cr, 2-6% Al, and the balance Fe to regulate surface roughness Ra to >=0.5mum. This steel sheet is held in an atmosphere of =10sec, by which a high-purity alumina film of =4hr, by which alumina whiskers of >=2mum length are formed on the surface. By this method, the far infrared radiator emitting far infrared radiation with high efficiency at the time of heating and also excellent in corrosion resistance can be manufactured at a low cost.

2. 发明专利

JPH02414B2 失效
公开(公告)号：JPH02414B2
公开(公告)日：1990-01-08
申请号：JP9243485
申请日：1985-04-30
申请人： KAWASAKI STEEL CO
发明人： KINOSHITA NOBORU , ISHIKAWA MASAAKI , AZUMA TAKESHI , SHIOKAWA TAKASHI
IPC分类号： C21D9/46 , C21D1/76 , C21D6/00

3. 发明专利

JPS61253323A BRIGHT ANNEALING METHOD FOR COLD ROLLED FERRITIC STAINLESS STEEL STRIP 失效
公开(公告)号：JPS61253323A
公开(公告)日：1986-11-11
申请号：JP9243485
申请日：1985-04-30
申请人： KAWASAKI STEEL CO
发明人： KINOSHITA NOBORU , ISHIKAWA MASAAKI , AZUMA TAKESHI , SHIOKAWA TAKASHI
IPC分类号： C21D9/46 , C21D1/76 , C21D6/00
摘要： PURPOSE:To form a bright finished surface having excellent rust preventiveness by subjecting a cold rolled ferritic stainless steel strip contg. Cr at a specific compsn. ratio to bright annealing under adequate conditions in a gaseous mixture atmosphere composed of N2 and H2. CONSTITUTION:The cold rolled ferritic stainless steel strip contg. 12-20wt% Cr is heated under the conditions of the region where the average heating rate between 400-800 deg.C is upper than the curve connecting successively the coordinate points A-F in the orthogonal coordinates having the dew point of the atmosphere in the furnace and average heating-up rate at the coordinate axes in a method for subjecting the above-mentioned stainless steel strip to bright annealing in a gaseous atmosphere of N2:H2=1:3. The steel strip after the heating is then held for 2-20 seconds in a 800-880 deg.C temp. range. The steel strip is thereafter cooled at >=400 deg.C/min cooling rate in a 800-400 deg.C temp. range. The pitting arising from the circumferential edge of the non-metallic inclusions insoluble in water on the bright surface of the resulted steel strip is thereby prevented.

4. 发明专利

JPS5471716A PRODUCTION OF FERRITE STAINLESS STEEL PLATE WITH EXCELLENT RIDGING RESISTANCE 失效
公开(公告)号：JPS5471716A
公开(公告)日：1979-06-08
申请号：JP13911977
申请日：1977-11-18
申请人： KAWASAKI STEEL CO
发明人： URAYAMA SEIICHI , KONDOU TETSUO , MIHARA YASUO , AZUMA TAKESHI , TAKEDA MOTOHIKO
IPC分类号： C21D9/46 , C21D6/00

5. 发明专利

JPH062163A PRODUCTION OF STAINLESS STEEL FOR PORCELAIN ENAMELING 失效
公开(公告)号：JPH062163A
公开(公告)日：1994-01-11
申请号：JP15804292
申请日：1992-06-17
申请人： KAWASAKI STEEL CO , TAKARA STANDARD KK
发明人： KAKIMOTO YOSHINOBU , SONE YUJI , AZUMA TAKESHI , YUGAWA NOBUTAKA , AKAMATSU MASAKAZU
IPC分类号： C23D3/00 , C21D1/76 , C23D5/00
摘要： PURPOSE:To easily provide a stainless steel with high adhesion to porcelain enamel with certainty by regulating the surface of a stainless steel to specific surface roughness and then treating this stainless steel at specific temp. in a nonoxidizing gas atmosphere of specific due point. CONSTITUTION:The surface of a stainless steel is regulated so that surface roughness Ra becomes 1.0-3.0mum, by which grooves for eating porcelain enamel can be formed in the surface of the stainless steel. Subsequently this stainless steel is heat-treated at 650-1100 deg.C in a nonoxidizing gas atmosphere of -30 to -5 deg.C dew point. It is preferable to regulate heat treatment time to about 30-120sec in the case where this heat treatment is done, e.g. by using a continuous annealing furnace. By this method, an extra thin and dense oxide film can be formed on the surface of the stainless steel and the stainless steel for porcelain enameling having high adhesion to porcelain enamel can be obtained.

6. 发明专利

JPH0377728A DECORATIVE METALLIC PLATE AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JPH0377728A
公开(公告)日：1991-04-03
申请号：JP20797689
申请日：1989-08-14
申请人： KAWASAKI STEEL CO , WAKO SEISAKUSHO KK
发明人： AZUMA TAKESHI , HIRONO TANEO , NISHIDA TAKEO
IPC分类号： B21D22/02 , B21B1/08 , B21D22/04 , E04C2/08
摘要： PURPOSE:To obtain a decorative metallic plate having high grade feeling by rolling the surface of a metallic plate with a roll having a finely rugged pattern and, continuously, rolling the rear of the metallic plate with a roll having the largest roughness larger beyond the specified value than the largest roughness of the rugged pattern on the surface. CONSTITUTION:The recessed parts on the back 3 receive so strong rolling reduction that the rugged pattern on the side of the surface 2 is crushed and becomes shallow. The projecting part on the side of the rear 3 is poor in rolling reduction and the rugged pattern on the side of the surface 2 remains as it is. The rugged pattern on the side of the back 3 is overlapped seemingly on the shallow and finely rugged pattern on the surface. Consequently, the largest roughness on the rear of a worked metallic plate is made larger than the largest roughness on the surface and the difference of the largest roughness between them is required to be >=2mu. This manufacturing method is not only applied to cold rolling but also to press working and the front and back surfaces of the metallic plate can be rolled or pressed at the same time.

7. 发明专利

JPS55164058A FERRITIC STAINLESS STEEL EXCELLENT IN SURFACE PROPERTY 失效
公开(公告)号：JPS55164058A
公开(公告)日：1980-12-20
申请号：JP6994779
申请日：1979-06-06
申请人： KAWASAKI STEEL CO
发明人： AZUMA TAKESHI , MIHARA YASUO
IPC分类号： C22C38/00 , C22C38/18
摘要： PURPOSE:To provide cold rolled products excellent in luster and color tone without treatment under specific condition after cold roll process by use of composition consisting of each specific amount of Si, C, Mn, P, S, Ni, Cr, and the remaining Fe, etc. CONSTITUTION:The titled steel consists of Si

8. 发明专利

JPH05222553A MANUFACTURE OF ENAMELED STAINLESS 失效
公开(公告)号：JPH05222553A
公开(公告)日：1993-08-31
申请号：JP2662792
申请日：1992-02-13
申请人： KAWASAKI STEEL CO , TAKARA STANDARD KK
发明人： SONE YUJI , OWADA SATORU , AZUMA TAKESHI , KAKIMOTO YOSHINOBU , YUGAWA NOBUTAKA , AKAMATSU MASAKAZU
IPC分类号： C23D3/00 , C23D5/00
摘要： PURPOSE:To provide the method for manufacturing enameled stainless in which the adhesion between stainless and enamel is remarkably improved. CONSTITUTION:This is the method for manufacturing enameled stainless featured, at the time of firing glazed stainless steel and manufacturing enameled stainless, by subjecting the surface of the stainless steel to shot blasting treatment in advance before the glazing and successively executing heat treatment at 600 to 950 deg.C for 1 to 15min in a nonoxidizing atmosphere.

9. 发明专利

JPS6483617A HEAT TREATMENT OF CR-AL STAINLESS STEEL 失效
公开(公告)号：JPS6483617A
公开(公告)日：1989-03-29
申请号：JP23959487
申请日：1987-09-24
申请人： KAWASAKI STEEL CO
发明人： AZUMA TAKESHI
IPC分类号： C21D6/00 , C21D8/04 , C22C38/00 , C22C38/18
摘要： PURPOSE:To shorten the time for annealing and to enable continuous annealing so that productivity is improved by controlling the annealing conditions for the cold rolled sheet of a Cr-Al stainless steel having a specific compsn. by a specific temp. range and holding time. CONSTITUTION:The annealing of the cold rolled sheet of the Cr-Al stainless steel contg., by weight %, 17-21% Cr, 2-4% Al,

10. 发明专利

JPS6386817A PRODUCTION OF STAINLESS CLAD STEEL 失效
公开(公告)号：JPS6386817A
公开(公告)日：1988-04-18
申请号：JP23293486
申请日：1986-09-30
申请人： KAWASAKI STEEL CO
发明人： AZUMA TAKESHI , KATAYAMA YASUSHI
IPC分类号： B21B1/22 , C21D8/02 , C21D9/46
摘要： PURPOSE:To prevent the diffusion of carbon from a high carbon steel to stainless steel and to prevent the development of cracking in the high carbon steel at the time of cold rolling by coating Ni film having the specific thickness on joining face in the three layer clad steel, to hot-roll and heat-treating at the limited condition after winding t the specific temp. CONSTITUTION:In the production of three layer stainless clad steel using carbon tool steel as core material and stainless steel as claded material, the Ni film is coated on the joining face at 0.2-1% of clad steel thickness after clading as the thickness thereof, to hot-roll and wind, so that the coil temp. becomes to 600-650 deg.C. Next, the hot-rolled strip is heat-treated at the inside of range, encircled by the coordinates A, B, C, D, E, F, H, H in the coordinate putting the heating temp. and holding time as coordinate axes respectively. In succession, it is cold-rolled. In this way, the stainless clad steel can be produced from a large ingot or slab.

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