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1. 发明专利

ZA9809776B Method of making austenitic stainless steel sheet 未知
公开(公告)号：ZA9809776B
公开(公告)日：1999-05-04
申请号：ZA9809776
申请日：1998-10-27
申请人： KAWASAKI STEEL CO
发明人： FUKUDA KUNIO , UJIRO TAKUMI , KOHNO MASAAKI , SATOH SUSUMU , YOSHIOKA MASAHIRO , YAMAZAKI SHINJI
IPC分类号： C25F1/06 , C21D20060101 , C23G20060101 , C23G1/08 , C23G , C21D

2. 发明专利

BR9804257A 未知
公开(公告)号：BR9804257A
公开(公告)日：1999-12-14
申请号：BR9804257
申请日：1998-10-29
申请人： KAWASAKI STEEL CO
发明人： FUKUDA KUNIO , YAMAZAKI SHINJI , UJIRO TAKUMI , KOHNO MASAAKI , SATOH SUSUMU , YOSHIOKA MASAHIRO
IPC分类号： C23G1/08 , C25F1/06
摘要： Method of making a hot-rolled steel sheet having superior surface appearance, free of surface patterns and uneven glossiness from an austenitic stainless steel slab containing about 0.03 percent by weight or more of Cu, about 0.03 percent by weight or more of V, and about 0.01 percent by weight or more of Mo under any of the following conditions: (A) pickling in a nitric-hydrofluoric acid solution containing about 20 to 100 g/l of nitric acid and about 100 to 300 g/l of hydrofluoric acid; (B) controlling nitric-hydrofluoric acid content in response to the iron ion content in the solution; (C) a preliminary pickling step prior to finishing pickling; (D) grinding about 2 mu m or more of the surface after preliminary pickling and prior to finishing pickling; (E) causing counterflow with a relative flow rate of 0.5 to 5.0 m/sec on the sheet surface during finishing pickling; (F) adding sulfuric acid or sulfurous acid as a hydrogen ion source to the nitric-hydrofluoric acid solution; and (G) electrolysing during finishing pickling such that the ratio of the cathodic electrolysis time to the anodic electrolysis time is about 3 or more.

3. 发明专利

ZA989776B Method of making austenitic stainless steel sheet 未知
公开(公告)号：ZA989776B
公开(公告)日：1999-05-04
申请号：ZA989776
申请日：1998-10-27
申请人： KAWASAKI STEEL CO
发明人： FUKUDA KUNIO , UJIRO TAKUMI , KOHNO MASAAKI , SATOH SUSUMU , YOSHIOKA MASAHIRO , YAMAZAKI SHINJI
IPC分类号： C25F1/06 , C21D20060101 , C23G20060101 , C23G1/08 , C23G , C21D

4. 发明专利

JP2002275543A METHOD FOR MANUFACTURING FERRITIC STAINLESS STEEL SHEET HAVING EXCELLENT FORMABILITY 失效
公开(公告)号：JP2002275543A
公开(公告)日：2002-09-25
申请号：JP2001080998
申请日：2001-03-21
申请人： KAWASAKI STEEL CO
发明人： KATO YASUSHI , UGI TAKUMI , FURUKIMI OSAMU , YOSHIOKA MASAHIRO
IPC分类号： B21B3/02 , C21D9/48 , C22C38/00 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To attain an r-value comparable to that of SUS430LX in which Ti or Nb is added to extra-low C and N in general-purpose ferritic stainless steel and also to provide ridging characteristics superior to that of the above SUS430 LX by improving the r-value and ridging characteristics of the general-purpose ferritic stainless steel represented by SUS430 without particularly causing any increase in cost. SOLUTION: In manufacturing the ferritic stainless steel by applying, after hot rolling, hot rolled plate annealing by batch annealing and then carrying out cold rolling and subsequent annealing twice respectively, the following relationships are respectively specified: the relationship between the finishing-mill delivery-side temperature at the hot rolling and the amount of strain at the first cold rolling; and the relationship between the amount of strain at the first cold rolling and the amount of strain at the second cold rolling.

5. 发明专利

JP2001158944A METHOD FOR PRODUCING AUSTENITIC STAINLESS STEEL SHEET FOR PRESS FORMING IN WHICH ORANGE PEEL IS HARD TO BE GENERATED 失效
公开(公告)号：JP2001158944A
公开(公告)日：2001-06-12
申请号：JP34288699
申请日：1999-12-02
申请人： KAWASAKI STEEL CO
发明人： YOSHIOKA MASAHIRO , ISHIZUKA HARUHIKO , YAMASHITA HIDEAKI , YOSHIZAWA HIDEYA
IPC分类号： C21D9/46 , C21D9/56 , C21D11/00 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an austenitic stainless steel sheet good in workability, and in which orange peel is hart to be generated. SOLUTION: At the time of subjecting an austenitic stainless steel slab to hot rolling, thereafter executing cold rolling and then subjecting the same to finish annealing, by controlling the crystal grain size number (N) of the steel sheet after the finish annealing to 8.5 to 9.5, the production of the austenitic stainless steel sheet for press forming in which orange peel is hard to be generated is made possible. In this case, it is perferable that the soaking temperature in the finish annealing is controlled to 1,040 to 1,060 deg.C, the soaking time is controlled to 20 to 50 s, and the control of the crystal grain size number is made more secure.

6. 发明专利

JPH09256174A CONTINUOUS PICKLING METHOD FOR STEEL STRIP AND DEVICE THEREFOR 失效
公开(公告)号：JPH09256174A
公开(公告)日：1997-09-30
申请号：JP6428996
申请日：1996-03-21
申请人： KAWASAKI STEEL CO
发明人： YUASA KAZUNARI , YOSHIOKA MASAHIRO
IPC分类号： C23G1/08 , C23G3/02
摘要： PROBLEM TO BE SOLVED: To provide a continuous pickling method for a steel strip capable of effectively suppressing the generation of defects in pickling at a line stop line and to provide a device therefor. SOLUTION: At the time of immersing and supporting a steel strip 1 to be continuously carried into a pickling soln. 2 by immersion rolls (8-1 to 8-3 and 9-1 to 9-3) in pickling tanks (3-1 to 3-3) and executing pickling, the stop of the carrying of the steel strip 1 is detected (12-2, 26 and 14), and the immersion rolls are automatically raised (24-1 to 24-6, 22-1 to 22-6 and 23-1 to 23-6).

7. 发明专利

JPH0890396A GRINDING EQUIPMENT OF STAINLESS STEEL STRIP 失效
公开(公告)号：JPH0890396A
公开(公告)日：1996-04-09
申请号：JP22696794
申请日：1994-09-21
申请人： KAWASAKI STEEL CO
发明人： YOSHIOKA MASAHIRO , MATSUBARA TSUTOMU , SATAKE YOSHIHIRO
IPC分类号： B24B7/12
摘要： PURPOSE: To achieve the grinding at a high availability factor, and to arbitrarily adjust the surface roughness by arranging belt grinding equipment in the forward stage and heavy grinding brush grinding equipment in the rear stage in series. CONSTITUTION: Five rows of belt grinding equipment 1 are arranged in the forward stage in the grinding line of the stainless steel strip 4, and two row of heavy grinding brush grinding equipment 2 are arranged in the rear stage. The grinding quantity is adjusted by a coarse belt, and the roughness is adjusted by the heavy grinding brush grinding equipment in the rear stage. Thus, only one kind of the grinding belt is sufficient, and a zirconia belt or the like which produces the grinding force but the scratch at the same time can be used in this equipment. The roughness can be arbitrarily changed by the brush grinding in the rear stage.

8. 发明专利

JPH0751727A MANUFACTURE OF HOT ROLLED STAINLESS STEEL STRIP 失效
公开(公告)号：JPH0751727A
公开(公告)日：1995-02-28
申请号：JP20752993
申请日：1993-08-23
申请人： KAWASAKI STEEL CO , HOTANI KK
发明人： YOSHIOKA MASAHIRO , YAMAMOTO JUNICHI , YOKOZAWA TSUGIO , HOTANI SETSUO
IPC分类号： B21B45/06 , C21D9/52 , C23G1/08
摘要： PURPOSE:To thin scale layer after annealing and reduce scale remainder defects, etc., by performing a surface grinding of a stainless steel strip with a grinding brush roll before annealing and creating a state with scales practically removed or lightly remaining. CONSTITUTION:A stainless steel strip coil 1 after annealing is first put on a heavy grinding brush roll 2; and on one hand, after a scale layer is practically removed, an austenitic stainless steel is put through a continuous annealing furnace 4, mechanical scale breaker(MSB) 5, shot blasting device 6 and acid cleaning equipment 7. On the other hand, a ferritic stainless steel, after treated in a batch annealing furnace, put through the treatment after the mechanical scale breaker 5, After a hot rolling, the surface oxidized layer is removed or made into a state having a light scale with a grinding brush roll 2; and therefore, the scale after the annealing is thin and easily peelable.

9. 发明专利

JPH071003A MANUFACTURE OF COLD ROLLED STAINLESS STEEL STRIP 失效
公开(公告)号：JPH071003A
公开(公告)日：1995-01-06
申请号：JP16599493
申请日：1993-06-14
申请人： KAWASAKI STEEL CO
发明人： KENMOCHI KAZUHITO , ISOBE KUNIO , YARITA YUKIO , KOBORI KATSUHIRO , SUZUKI MAKOTO , YOSHIOKA MASAHIRO
IPC分类号： B21B1/22 , B21B3/02 , B21B45/02 , B23Q17/00 , B24B1/00 , B24B7/12 , C21D8/02 , C21D9/46 , C21D9/52
摘要： PURPOSE:To solve the held problems on deterioration in surface glossness in the case of cold rolling with large diameter work rolls of a cold tandem mill or the like or in the case of cold rolling with small diameter work rolls after cold rolling with the large diameter work rolls. CONSTITUTION:In a manufacturing method for the cold rolled stainless steel strip, the stainless steel strip is rapidly cooled at a cooling rate of >=25 deg.C/sec just after annealing or in the range of 850-400 deg.C of a strip temp. after annealing, further a cold rolled base stock is made by mechanically grinding the surface of steel strip by >=2mum and this base stock is cold rolled with the cold tandem mill while supplying rolling oil emulsion whose viscosity at 50 deg.C is

10. 发明专利

JPH11179593A METHOD AND DEVICE FOR GRINDING WELD PART OF STEEL STRIP 失效
公开(公告)号：JPH11179593A
公开(公告)日：1999-07-06
申请号：JP34934397
申请日：1997-12-18
申请人： KAWASAKI STEEL CO
发明人： YAMAZAKI SHINJI , YOSHIOKA MASAHIRO , KUMAZAWA SHINTARO
IPC分类号： B24B49/14 , B21B15/00 , B23K31/00 , B23K37/08 , B24B9/04 , C21D9/46
摘要： PROBLEM TO BE SOLVED: To provide the method and device for grinding a weld part of a steel strip capable of eliminating a post-heat treatment by grinding the weld part of the steel strip under the heated condition while the post-heat treatment is achieved in the cooled condition in a regular manner, and capable of achieving the sufficient heat input in the weld part even at a regular grinding speed where no excessive thin part is generated. SOLUTION: This grinding device 1 to grind a weld part 2 of preceding and succeeding steel strips W1, W2 in a continuous treatment line for a steel strip, is provided with a heating means 4 to heat a grinding wheel 3 in grinding the steel strip high in carbon content. Only in grinding the steel strip high in carbon content, the post-heat treatment can be dispensed with by heating the grinding wheel 3 by the heating means 4, and the heat input can be achieved of the temperature where the martensitic transition phase of the weld part 2 can be tempered even at the regular grinding speed.

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