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1. 发明专利

JPH11116114A STEEL STRIP MEANDER PREVENTING DEVICE 失效
公开(公告)号：JPH11116114A
公开(公告)日：1999-04-27
申请号：JP28690897
申请日：1997-10-20
申请人： SUMITOMO METAL IND
发明人： HIUGAJI YUKIO
IPC分类号： B65H23/038 , C21D9/56 , C21D9/63
摘要： PROBLEM TO BE SOLVED: To provide a meander correcting device having good responsiveness and a simple control system in a levitation type line. SOLUTION: A steering shaft 36 positioned identical to the axis of a sleeve for revolving 27 is arranged parallel with an inclined steel strip 2 and is offset a certain distance δ2 from the line passing the center of a steering roll 21. Because the steering shaft 36 is also inclined, an appropriate twist can be given to the steel strip. The offset of the steering shaft 36 causes the steering roll 21 to move in total in the correcting direction, enhancing the correcting effect.

2. 发明专利

JPH07267444A MEANDERING CONTROL METHOD AND DEVICE FOR STEEL PLATE CONVEYANCE 失效
公开(公告)号：JPH07267444A
公开(公告)日：1995-10-17
申请号：JP5896994
申请日：1994-03-29
申请人： SUMITOMO METAL IND
发明人： HIUGAJI YUKIO , KOJIMA TOSHIO , YOSHIHARA TADAO
IPC分类号： B65H23/032
摘要： PURPOSE:To provide a meandering control method and a device for steel plate conveyance capable of estimating and controlling meandering at an optional point other than the meandering detection point. CONSTITUTION:The meandered quantities of a steel plate are detected by two sets of meandering sensors provided on the inlet side and outlet side of a meandering control steering roller in the continuous processing line of the steel plate. A meandering control instruction value (I) is calculated by a controller with the weighted coefficient (a) and the equation I=aXIp+(1-a)Io based the meandering detected quantities (Ip, Io). The meandering control quantity is instructed to the steering roller, and meandering control is made by the steering roller based on the instruction value (I).

3. 发明专利

JPH06212287A SPEED CONTROL DEVICE OF CONTINUOUS STEEL SHEET TREATMENT LINE 失效
公开(公告)号：JPH06212287A
公开(公告)日：1994-08-02
申请号：JP666393
申请日：1993-01-19
申请人： MITSUBISHI HEAVY IND LTD , RIYOOSEN ENGINEERS KK , SUMITOMO METAL IND
发明人： TAUCHI KUNIAKI , YOSHIKAWA KAZUHIKO , KAMEDA KOJI , SUEMORI HIDEAKI , KASAI MASAHIRO , YOSHIDA SHIGEKI , KOJIMA TOSHIO , HIUGAJI YUKIO , TAKAHASHI NOBUAKI
IPC分类号： C21D9/56 , C21D11/00 , C23C2/00 , C23C2/40 , C23G3/02
摘要： PURPOSE:To automatically execute the line speed control for the looper residual amount, and to stably keep the temperature of steel sheets. CONSTITUTION:An arithmetic unit 21 obtains the target line speed VSC and the target temperature TSC of the steel sheet from the sheet passing conditions or the like, arithmetic units 16, 19 receive the handling signals S1, S2 and obtain the line speeds VH1, VH2 for handling, an arithmetic unit 22 obtains the minimum speed out of VSC, VH1, and VH2 as the minimum value VF, and an arithmetic unit 23 obtains the intermediate value VM which is the intermediate speed between the detected speed VR which is the actual line speed and the minimum value VF and the acceleration/deceleration DVM. On the other hand, arithmetic units 17, 18 obtain the line speed VL1, VL2 for looper from the detected values I1, I2 of looper residual amount, and an arithmetic unit 20 obtains the line speed VL for looper and the acceleration/deceleration DVL from VL1, VL2 and the temperature TR, TTC of the steel sheet. An arithmetic unit 24 defines the minimum speed of VM and VL as the minimum value VS, and at the same time, defines the acceleration/deceleration on the minimum side as DVS. and a motor speed control device 25 drives a driving motor 26 to give VS and DVS.

4. 发明专利

JPH0665798A METHOD FOR DESCALING STAINLESS STEEL AND DEVICE THEREFOR 失效
公开(公告)号：JPH0665798A
公开(公告)日：1994-03-08
申请号：JP22012392
申请日：1992-08-19
申请人： SUMITOMO METAL IND , HITACHI LTD
发明人： KOJIMA TOSHIO , HIUGAJI YUKIO , NAKAMURA TSUNEO
IPC分类号： C23G1/08 , C25F1/06
摘要： PURPOSE:To efficiently descale many kinds of stainless steels having different descaling characteristics by omitting aq. nitric acid electrolysis and treatment with a nitric acid-hydrofluoric acid mixture at need. CONSTITUTION:A stainless steel strip 1 scaled by annealing is electrolyzed in an aq. neutral salt electrolytic cell 2 to dissolve Cr oxides and then electrolyzed in an aq. nitric acid electrolytic cell 7 to dissolve Fe oxides. The strip is then introduced into a nitric acid-hydrofluoric acid mixture tank 17 to remove a Cr-deficient layer and discharged through a washing tank 19 and a drier 21. In this process, aq. nitric acid in the electrolytic cell 7 is transferred to a tank 9 in accordance with the kind of steel by a switching means 30, and the aq. neutral salt soln. in a tank 10 is supplied to the cell 7. The nitric acid- hydrofluoric acid mixture in the tank 17 is replaced with water or use of the tank 17 is omitted. Consequently, the strip is efficiently descaled, and a high- quality stainless steel strip 11 having a good surface state is obtained.

5. 发明专利

JPH1088248A METHOD FOR CONTROLLING CONTINUOUS HEAT TREATMENT FURNACE 失效
公开(公告)号：JPH1088248A
公开(公告)日：1998-04-07
申请号：JP26798596
申请日：1996-09-18
申请人： SUMITOMO METAL IND
发明人： HIUGAJI YUKIO , KOJIMA TOSHIO
IPC分类号： F23N5/02 , C21D9/56 , C21D11/00
摘要： PROBLEM TO BE SOLVED: To provide a means for executing suitable and stable temp. control of a continuous heat treatment furnace. SOLUTION: In a heating zone 2 arranging direct firing type burner in the continuous heat treatment furnace, a relation between 'line speed' and 'fuel flow rate of the direct firing type burners dividedly arranged into plural zones' is beforehand obtd. Then, in the case the necessity extinguishing or igniting the direct firing burner 8 in a specific zone caused by variation of the line speed develops, the compensation of the fuel flowing rate is executed so as to satisfy the preset relation in the other zone to prevent the intermittent variation of the fuel flow rate, and the continuous variation of the fuel flow rate is secured. Further, in a soaking zone 3 arranging cup type burners 5, the combustion rate of the burner is controlled according to feedback control signal from a strip thermometer 7, and air/fuel ratio of the burner is controlled and thus, the operator deals with a low loaded operation of the heat treatment furnace.

6. 发明专利

JPH08157973A COMBUSTION CONTROL OF CONTINUOUS ANNEALING FURNACE 失效
公开(公告)号：JPH08157973A
公开(公告)日：1996-06-18
申请号：JP29829494
申请日：1994-12-01
申请人： SUMITOMO METAL IND
发明人： HIUGAJI YUKIO , KOJIMA TOSHIO , UCHIYAMA EIICHIRO
IPC分类号： C21D11/00 , C21D9/56
摘要： PURPOSE: To prevent the temp. deviation at the front end of a preceding material in the case where steel sheets including the preceding material and succeeding material varying in heat absorption characteristics are subjected to combustion control to attain a target sheet temp. by passing these steel sheets through an annealing furnace. CONSTITUTION: A changeover switch 11 is connected to a sheet temp. dependency control section 10 side. This control section controls the combustion quantity R to a burner 5 by supplying an opening degree control signal ΔQS for matching the sheet temp. TS from a sheet thermometer 8 with the target sheet temp. TS0 from the control section 13 to a flow rate control valve 6. The changeover switch is connected to a zone temp. dependency control section 9 side when the sheet junction point arrives at the prescribed control changeover position H in a combustion zone. The control section supplies an opening degree control signal AQZ to the valve 6 so as to maintain the target zone temp. with the zone temp. TZ from a thermocouple 7 of this time as the target zone temp. The changeover switch 11 is reset at the initial position and the valve is controlled by the signal from the sheet temp. dependency control section when the sheet junction point passes a zone outlet. Since the sheet temp. of the sheet junction part is controlled by the zone temp. dependency, the temp. deviation at the front end of the succeeding material is prevented.

7. 发明专利

JPH07316856A ROLL NECK SEALING STRUCTURE OF LIQUID TANK 失效
公开(公告)号：JPH07316856A
公开(公告)日：1995-12-05
申请号：JP10838894
申请日：1994-05-23
申请人： SUMITOMO METAL IND
发明人： HIUGAJI YUKIO , YUNOKAWA YOSHIHARU , KOJIMA TOSHIO
IPC分类号： C23G3/02 , F16J15/3232 , F16J15/32
摘要： PURPOSE:To effectively prevent liquid leakage, to prolong the period before sealing members having lips are exchanged and to decrease the kinds of spare parts by combining toric sealing plates and the sealing members which are in sliding contact therewith and have lips. CONSTITUTION:The toric sealing plates 3 to 6 are mounted at the side walls 2 of a liquid tank 1. The annular sealing members 11 to 14 having the lips 11a to 14a in sliding contact with the sealing plates 3 to 6 are mounted at a roll neck 7. The lips 11a to 14a are directed from the inside of the tank 1 toward the outer side. The liquid in the tank 1 is sealed by the second sealing member 11. The liquid leaking from the first sealing member 11 is sealed by the second sealing member 12. Henceforce the leaking liquid is sealed by the third and fourth sealing members 13, 14. The shapes of the sealing members and sealing plates are made common or uniform by such sealing structures of multiple stages and, therefore, the kinds of the spare parts are decreased.

8. 发明专利

JPH10297804A CORRECTING DEVICE FOR MEANDERING OF METAL STRIP 失效
公开(公告)号：JPH10297804A
公开(公告)日：1998-11-10
申请号：JP10617497
申请日：1997-04-23
申请人： SUMITOMO METAL IND
发明人： SUZUKI TAKENORI , HIUGAJI YUKIO
IPC分类号： B65H23/038
摘要： PROBLEM TO BE SOLVED: To correct a large meandering quantity in a short time. SOLUTION: This is a correcting device for the meandering of a steel strip (s) which is varied in a carrying direction by twining around an inlet carrying roller 11 and an outlet carrying roller 12. The correcting device is equipped with a turning mechanism 20 which concentrically rotates each of the inlet carrying roller 11 and the outlet carrying roller 12 within a horizontal plane by providing a turning frame for supporting each of the shaft boxes 13a-14b of the inlet carrying roller 11 and the outlet arraying roller 12 within a horizontal plane and turning supporters 24a, 24b for rotating the turning frame within the horizontal plane, and a tilting mechanism 30 for tilting the inlet carrying roller 12 to the surface of the steel strip (s) during thr rotation of the inlet carrying roller 11 and the outlet carrying roller 12 through the turning mechanism 20 by providing a tilting motor cylinder 31 which is loaded on the turning frame and rises and lowers the shaft box 13b of the inlet carrying roller 11.

9. 发明专利

JPH0826545A DEVICE AND METHOD FOR CENTERING STEEL BELT 失效
公开(公告)号：JPH0826545A
公开(公告)日：1996-01-30
申请号：JP16041494
申请日：1994-07-12
申请人： SUMITOMO METAL IND
发明人： YAMAZAKI TAKESHI , HIUGAJI YUKIO , KOJIMA TOSHIO
IPC分类号： B65H23/038 , B65H23/032
摘要： PURPOSE:To perform centering without bending even a thin steel belt by measuring a displaced amount of the center of a steel belt, and moving in a direction of reducing the displaced amount a clamp mechanism holding upper/lower surfaces interposed of the steel belt. CONSTITUTION:A center displaced amount of a steel belt is measured by a center displacement measuring mechanism 21, and based on these measuring results, centers of the first/second guide roll units 63, 64 are aligned to a center of the steel belt, further to adjust a space of the guide roll units 63, 64. Here by actuating a quick cylinder 62a extended, only the first guide roller unit 63 is made adjacent to a small distance from an edge of the steel belt. Next by upper/lower rollers 33, 34 of a clamp mechanism 31, after the steel belt is clamped, both the guide roller units 63, 64 and upper/lower rollers 33, 34 are moved upward, to reduce center displacement of the steel belt. Thereafter, only the upper/lower rollers 33, 34 are placed in an opening condition and returned A back to the original position. By repeating an operation in the above, the center of the steel belt is made to approach the target center.

10. 发明专利

JPH07238325A HIGH TEMPERATURE WEAR-RESISTANT STRUCTURE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH07238325A
公开(公告)日：1995-09-12
申请号：JP5327694
申请日：1994-02-24
申请人： IBIDEN CO LTD , SUMITOMO METAL IND
发明人： ORITO MIKI , ENDO RIKIO , KOJIMA TOSHIO , HIUGAJI YUKIO
IPC分类号： C21D9/56 , F27B9/24 , F27B9/30
摘要： PURPOSE:To obtain a high-strength and inexpensive high-temp. wear-resistant structure excellent in resistance to heat and wear by pressing and clamping the laminate of inorg. formed sheets consisting inorg. fiber, inorg. powder and a binder and bearing the laminate with a metallic casing. CONSTITUTION:A high-temp. wear-resistant structure to be provided at the outlet of the furnace of a continuous heat-treating device for steel sheet, etc., is produced as follows. Namely, inorg. fiber, inorg. powder, a binder and water are mixed to form the slurry. A coagulant is admixed with the slurry to form an aggregate, the aggregate is formed into a wet sheet, the sheet is pressed and dehydrated to obtain an inorg. formed sheet having 0.5 to 1.1g/cm bulk density, and the sheet is blanked in a desired shape and dried. A large number of the obtained inorg. formed sheets 1 are laminated and press-bonded to obtain a laminate 100, a shaft 2 is allowed to pierce the laminate, and the laminate 100 is pressed and clamped with a collar 3 provided at the rear end and a pressing plate 4 mounted on the front end. A high-temp. wear-resistant structure 10 having 0.8 to 1.5g/cm bulk density is obtained in this way, and the lower part of the laminate 100 is borne in a metallic casing 35.

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