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1. 发明专利

JPH09279370A MANUFACTURE OF STEEL SHEET EXCELLENT IN SURFACE QUALITY 失效
公开(公告)号：JPH09279370A
公开(公告)日：1997-10-28
申请号：JP8915396
申请日：1996-04-11
申请人： KAWASAKI STEEL CO
发明人： SATO NAOYA , MUTO SHINICHIRO , TACHIBANA KIYOSHI
IPC分类号： C21D9/52 , C23G1/08
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacture of a steel sheet excellent in color tone of sheet surface by removing concentrated substances from the surface of a steel strip before temper rolling while inhibiting the formation of concentrated substances at the time of annealing. SOLUTION: Before annealing, a steel sheet is immersed in a sulfuric acid solution of pH2-3 in an acid pickling tank 4 and pickled, by which smudges adhering to the surface of the steel sheet, particularly, smudges infiltrated into fine recessed parts are removed. Further, after annealing, the steel sheet is immersed without delay in an aqueous solution in a water cooling tank 7 and cooled. Acid pickling is performed simultaneously with cooling, and the concentrated substances formed on the surface of the steel sheet during annealing can be completely removed because sulfuric acid is added to the aqueous solution in the water cooling tank 7. After water washing in a water washing tank 8, the steel sheet is continuously fed to a temper rolling mill 9, and, after temper rolling, the steel sheet is wound on a tension reel 10 and formed into product.

2. 发明专利

JPH08188897A NI PLATING METHOD CAPABLE OF REDUCING GENERATION OF SLUDGE AND DEVICE THEREFOR 失效
公开(公告)号：JPH08188897A
公开(公告)日：1996-07-23
申请号：JP73495
申请日：1995-01-06
申请人： KAWASAKI STEEL CO
发明人： KIKUCHI TOSHIHIRO , MOCHIZUKI KAZUO , NAKAMARU HIROKI , MUTO SHINICHIRO
IPC分类号： C25D3/12 , C25D17/12 , C25D21/14
摘要： PURPOSE: To suppress the generation of sludge and to prevent the lowering of the anode function and the deterioration of the plating quality by keeping the plating soln. in the basket of a basket anode at specified pH and iron ion concn. CONSTITUTION: A lath 3 whose periphery is fixed by a lath presser frame 4 is provided on the entire front side, a button-shaped Ni lump is packed in a basket anode 1 furnished with a liq. pipe 2 having a suction port 5, the anode is dipped in a plating soln., and a cathode having the same area as the lath 3 is plated with Ni. In this Ni plating method using the vertical basket anode, the plating soln. in the basket is kept at =3.5×Vo. The plating soln. is forced into the basket under pressure by a pump or sucked into the basket.

3. 发明专利

JPH07290107A METHOD FOR CONNECTING PRECEDING MATERIAL AND FOLLOWING MATERIAL IN CONTINUOUS PROCESSING EQUIPMENT FOR STRIP 失效
公开(公告)号：JPH07290107A
公开(公告)日：1995-11-07
申请号：JP8433594
申请日：1994-04-22
申请人： KAWASAKI STEEL CO
发明人： TACHIBANA KIYOSHI , MUTO SHINICHIRO , KANETANI TETSUO , SAKAMOTO MASATAKA
IPC分类号： B21B15/00 , B21B1/26 , B23K11/06 , B23K31/00
摘要： PURPOSE:To lower hardness in overlapped part after welding and to prevent the generation of roll mark by overlapping and welding the end parts of a preceding material and following material and executing heating and pressing with rolls after pressing by reducing the overlapped part. CONSTITUTION:In continuous processing equipment for continuously processing strips, the respective end parts of the preceding material and following material are overlapped and welded, and this overlapped part is pressed by reducing with a pair of rolls. Next, heating and pressing with a pair of the rolls in the overlapped part are respectively twice executed or, if necessary, repeated several times. A part affected by work hardening accompanying 1st pressing is annealed by 2nd heating and its hardness is lowered, also thickness is further reduced by 2nd pressing and the generation of roll mark due to high hardness or thickness variation is prevented.

4. 发明专利

JPH0716639A DEVICE AND METHOD FOR ROLLING METAL STRIP 失效
公开(公告)号：JPH0716639A
公开(公告)日：1995-01-20
申请号：JP15966493
申请日：1993-06-29
申请人： KAWASAKI STEEL CO
发明人： MUTO SHINICHIRO , YOSHIDA MINEO , KOBAYASHI MAKOTO
IPC分类号： B21B45/02
摘要： PURPOSE:To provide the device and method for rolling the metal strip where irregularity of a steel sheet shape is hardly generated at the second stand outlet side regardless of the extent or rolling reduction of a first stand. CONSTITUTION:Cooling water spraying nozzles 6 in opposition are arranged on the upper and lower parts of a stel sheet S on a steel sheet passing path between the first stand 1 and the second stand 2. Cooling water R is supplied to these cooling water spraying nozzles 6 from a cooling water feeder 8 and a booster pump 7 and ejected and discharged to both surface of the steel sheet S, at least the steel sheet temperature at the inlet side of the second stand 2 is detected by a temperature sensor 9 and the supply quantity of the cooling water R is controlled by a controller 11 so that the second stand 2 inlet side steel sheet temperature attains a specified value.

5. 发明专利

JPH06932B2 失效
公开(公告)号：JPH06932B2
公开(公告)日：1994-01-05
申请号：JP10083389
申请日：1989-04-20
申请人： KAWASAKI STEEL CO
发明人： ISHIBASHI GENICHI , MUTO SHINICHIRO , SATO KUNIAKI , MURAMOTO HARUMASA , YAGINUMA HIROSHI
IPC分类号： C21D9/56

6. 发明专利

JPH04254565A METHOD FOR OPERATING GALVANNEALING FURNACE 失效
公开(公告)号：JPH04254565A
公开(公告)日：1992-09-09
申请号：JP1344991
申请日：1991-02-04
申请人： KAWASAKI STEEL CO
发明人： MUTO SHINICHIRO , ARAI MAKOTO , SATO KUNIAKI , TOMURA YASUO
IPC分类号： C23C2/06 , C23C2/28
摘要： PURPOSE:To quickly control temp. of a steel strip to the aimed value by adjusting air ratio in an alloying furnace corresponding to variation of the product of thickness in the steel sheet by line speed beforehand obtd. at the time of alloying zinc plating by heating the galvanized steel sheet in the alloying furnace. CONSTITUTION:The cold-rolled steel sheet 3 already annealed, is dipped into a galvanizing vessel 1, and after forming galvanized layer on the surface, this is passed in the alloying furnace 2 providing plural burners 4 and heated and Zn-Fe alloying is executed to the galvanized layer. In this case, relation of variation of the air ratio in the burner 4 corresponding to variation of the product of thickness in the galvanized steel sheet 3 by the line speed in the alloying furnace 2, is beforehand obtd. Based on this, at the time of actually operating, by decreasing or increasing the air ratio in the burner 4 corresponding to variation of the above product value, the temp. of steel strip 1 in the alloying furnace 2 is quickly controlled to the optimum aimed temp. and deterioration of quality in the alloying galvanized steel sheet caused by unsuitable temp. in the steel strip 1, is prevented.

7. 发明专利

JPH0217610B2 失效
公开(公告)号：JPH0217610B2
公开(公告)日：1990-04-23
申请号：JP52882
申请日：1982-01-05
申请人： KAWASAKI STEEL CO
发明人： MUTO SHINICHIRO , TAKESHIMA RIKIO , KATAYAMA KOHEI
IPC分类号： C21D9/00 , C21D1/52 , C21D11/00

8. 发明专利

JPH0261009A CONTINUOUS ANNEALING FURNACE FOR STEEL STRIP 失效
公开(公告)号：JPH0261009A
公开(公告)日：1990-03-01
申请号：JP21243588
申请日：1988-08-29
申请人： KAWASAKI STEEL CO
发明人： ISHIBASHI GENICHI , MUTO SHINICHIRO , SATO KUNIAKI , YAGINUMA HIROSHI , MURAMOTO HARUMASA
IPC分类号： C21D9/56 , C21D9/63
摘要： PURPOSE:To eliminate the development of thermal deformation and pickup flaw in a steel strip and to enable high speed annealing by setting tension developing devices at inlet and outlet sides of a furnace and arranging a guide device for passing the steel strip under non-contacting with gas injection at a turning part. CONSTITUTION:In the vertical furnace parallel setting preheating zone 1, heating zone 2, soaking zone 3 and cooling zone 4, deflector rolls 5 are set between the preheating zone 1 and the heating zone 2. The turning part is arranged between the soaking zone 3 and the cooling zone 4 and gas injection toward radius direction is executed to the steel strip with the guide device 6. Tension bridle rolls 8a, 8b are arranged at the inlet side of the preheating zone l and the outlet side of the cooling zone 4 to give the steel strip the tension. Th. guide device 6 is composed of plural divided chambers 13 connected to each piping 12 from a circulating fan 11 and the gas sent with circulating fan 11 is injected to the steel strip passing the turning part 7 from nozzle hole 14 formed in each divided chamber 13.

9. 发明专利

JPH024926A VERTICAL CONTINUOUS HEAT-TREATING FURNACE 失效
公开(公告)号：JPH024926A
公开(公告)日：1990-01-09
申请号：JP15364388
申请日：1988-06-23
申请人： KAWASAKI STEEL CO
发明人： SHIMIZU MASUHITO , MUTO SHINICHIRO , SATO KUNIAKI
IPC分类号： C21D9/56
摘要： PURPOSE:To effectively isolate the respective atmospheric gases in the high- temp. zone and the low-temp. zone from each other by providing a communicating passage connecting the upper part of the high-temp. zone and the lower part of the low-temp. zone in the title vertical continuous heat-treating furnace. CONSTITUTION:Two partition walls 13 are provided between the heating zone 1 or soaking zone 2 and the cooling zone (cooling zone 3, etc.) to form a sealing tunnel 14. The tunnel 14 is connected to the high-temp. zone at the upper part and to the cooling zone at the lower part. Under such a constitution, a band steel S is conveyed by hearth rolls 9 and 9' from the high-temp. zone to the cooling zone through the tunnel 14. By this method, the infiltration of the respective atmospheres in the high-temp. zone and cooling zone into each other is effectively prevented, a unit requirement of fuel is reduced, the meandering of the band steel S is prevented, and heat buckling is obviated.

10. 发明专利

JPH0140881B2 失效
公开(公告)号：JPH0140881B2
公开(公告)日：1989-09-01
申请号：JP23103584
申请日：1984-11-01
申请人： KAWASAKI STEEL CO
发明人： ENDO KAZUYA , OKABE RITSUO , OOKAWA KOTARO , HATSUYA EIJI , YAMASOTO HIROYUKI , MUTO SHINICHIRO , ARAI MAKOTO
IPC分类号： B22F1/00 , F27B9/30

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