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1. 发明专利

JP2002357556A METHOD FOR DISCHARGING DEFECTIVE SECTION IN STEEL STRIP 审中-公开
公开(公告)号：JP2002357556A
公开(公告)日：2002-12-13
申请号：JP2002034319
申请日：2002-02-12
申请人： KAWASAKI STEEL CO
发明人： NOZAKI TAKUYA , KIKUCHI TOSHIHIRO , AOKI FUMIO , TOMURA YASUO
IPC分类号： G01N21/892 , B21C51/00 , G01N21/894
摘要： PROBLEM TO BE SOLVED: To provide a method for discharging defective sections in steel strips where the mixture rate of nonconforming articles can be reduced drastically at a stage for shipping conforming articles as products by easily judging whether nonconforming articles are mixed into conforming articles before shipment. SOLUTION: The marking results in the defective section by a marking apparatus 4 are read by a mark-reading apparatus 5, and at the same time the read marking results are compared with marking detection results by a mark detector 8 using a collating apparatus 9, and it is judged whether steep strips having marks are mixed into the conforming articles based on the collating result.

2. 发明专利

JP2001288597A PLATED STEEL PLATE FOR WELDED CAN 失效
公开(公告)号：JP2001288597A
公开(公告)日：2001-10-19
申请号：JP2000100015
申请日：2000-03-31
申请人： KAWASAKI STEEL CO
发明人： KIKUCHI TOSHIHIRO , RYU NAOTOSHI , AOKI FUMIO , NAKAKOJI NAOMASA , KOKADO FUMIO
IPC分类号： B32B15/01 , B32B15/08 , C23C28/00 , C25D5/26 , C25D5/48 , C25D11/38
摘要： PROBLEM TO BE SOLVED: To provide a plate steel plate for a welded can which is electric- resistance welded without need for being ground, excellent in weldability, and excellent in the paint adhesiveness and corrosion resistance. SOLUTION: A tin-plated layer of 400-900 mg/m2 per single side, a metal chromium layer of 30-110 mg/m2 per single side, and a hydrate oxide layer of the chromium of 3.0-30.0 mg/m2 in terms of metal chromium are formed on at least one side of the steel plate. An iron-tin alloy layer of >=0.05 mg/m2 in terms of metal tin may be formed under the tin-plated layer.

3. 发明专利

JPH0919718A DEVICE FOR TURNING COIL OF STEEL STRIP 失效
公开(公告)号：JPH0919718A
公开(公告)日：1997-01-21
申请号：JP16873495
申请日：1995-07-04
申请人： KAWASAKI STEEL CO
发明人： AOKI FUMIO , MUTO SHINICHIRO
IPC分类号： B65H18/10 , B21C47/24
摘要： PROBLEM TO BE SOLVED: To smoothly turn a steel strip coil without damaging by installing an extension and contraction means providing a clamp to engage at a leg of a bar like skid and to extend and contract the bar like skid itself in a proper length to the external diameter of the steel strip coil. SOLUTION: A supporting member 10 of a coil 1 composed of two faces being a right angle mutually and a turning cylinder 7 of the supporting member 10 are as same as the conventional turning device. However, a bar like skid 2 has a mechanism to extend and contract the length, for example, a structure like a slidable double tube joint and a leg of the bar like skid 2 is engaged to a position adjusting cylinder 5 with an adjusting clamp 9. Accordingly, in the bar like skid 2, the length is able to extend and contract and the central position is able to be adjusted at the central part of the coil 1. As a result, the skid size adjusting working in the turning working of the coil 1 can be executed in a short time without requiring the labor of a worker.

4. 发明专利

JP2001288594A LAMINAR FLOW NOZZLE FOR ELECTRIC TINNED STEEL PLATE, AND COOLING APPARATUS AND COOLING METHOD 失效
公开(公告)号：JP2001288594A
公开(公告)日：2001-10-19
申请号：JP2000098661
申请日：2000-03-31
申请人： KAWASAKI STEEL CO
发明人： RYU NAOTOSHI , KIKUCHI TOSHIHIRO , AMAGASA TOSHIAKI , YUKI KEI , AOKI FUMIO , TANIGUCHI SHIGEKI
IPC分类号： C25D5/50 , C25D5/26 , C25D7/06
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a method for cooling a tinned steel plate after the reflow treatment in a continuous electric tin-plating line. SOLUTION: A pair of laminar flow nozzles are disposed on the inlet side of the tinned steel plate before the steel plate enters a cooling water in a quenching tank so that the cooling water of the laminar flow is allowed to flow along the steel plate in the carrying direction over the entire width of face and rear sides of the steel plate, and the steel plate is cooled thereby. In addition to the cooling by the laminar flow, at least a pair of spray nozzles are disposed within the cooling water in the quenching tank, and the steel plate may be cooled thereby while spraying the cooling water by the spray nozzles. Generation of quench stain can be prevented thereby.

5. 发明专利

JP2000273689A METHOD FOR PLATING METALLIC BAND AND APPARATUS THEREFOR 失效
公开(公告)号：JP2000273689A
公开(公告)日：2000-10-03
申请号：JP8220299
申请日：1999-03-25
申请人： KAWASAKI STEEL CO
发明人： KIKUCHI TOSHIHIRO , KAWAMURA KATSUTO , CHINO TOSHIHIKO , AOKI FUMIO
IPC分类号： C25D7/06 , C25D17/12
摘要： PROBLEM TO BE SOLVED: To assure the uniformity of a plating coating weight in a transverse direction by dividing a soluble anode to divided anodes which are plural in a longitudinal direction and adjusting a masking range of the respective divided anodes. SOLUTION: For example, the soluble anode 30 is trisected to the divided anodes 31 in the longitudinal direction of the metal band 1 to be transported. The respective divided anodes 31 are placed on three rows of divided anode tables 32. Masks 33, which make the masking range adjustable, are arranged between the divided anodes 31 and the metallic band 1. The divided anodes 31 are trisected by the masks 33. The edge parts and the central parts are exposed and other parts are shielded. Positive voltage is impressed to the divided anodes 31 from a rectifier 7 to regulate the masking range of the divided anodes. The spacings between the respective divided anodes 31 and the metallic band 1 are regulated by independently lifting the divided anodes 31 by means of a divided anodes table lifting device 34.

6. 发明专利

JPH081236A METHOD FOR PREVENTING LOOSENING IN COILING STEEL STRIP 失效
公开(公告)号：JPH081236A
公开(公告)日：1996-01-09
申请号：JP13000094
申请日：1994-06-13
申请人： KAWASAKI STEEL CO
发明人： AOKI FUMIO , YAMAMOTO YOSHIHIDE , KAWASHIMA YOSHINORI
IPC分类号： B21C47/02 , B21C47/26
摘要： PURPOSE:To prevent loosening in coiling by completing coiling with a specific value in the deceleration for coiling after cutting a steel strip immediately before a coiler. CONSTITUTION:A steel strip 1 is coiled by a coiler 4 provided on the exit side of continuous processing equipment 3. The tension of the steel strip 1 is controlled by a plied roll 6 at the time of coiling. When the steel strip 1 is cut by a shear 5, the cutting signal is detected by a shear operation detector 9 and inputted in a control mode switch 13 and a reference speed calculation circuit 17. A contact point (b) is switched to a contact point (a) in the switch 13, and an automatic speed control circuit 12 is activated. Deceleration A is calculated by an arithmetic circuit 17. The A is the value of the formula; where, A (m/s ), (r); coil radius at cutting point in time, k, b , b , b ; constants depending on the kind of steel strip. The revolution of a driving motor 7 is controlled by the automatic speed control circuit 12 so that the deceleration becomes A or below. When the deceleration is A or below, loosening is not caused on account of a relation between the moment of inertia of the steel strip 1 and a frictional force between steel strips 1.

7. 发明专利

JPH059783A METHOD FOR PREVENTING STAIN OF TIN ELECTROPLATED STEEL SHEET IN QUENCHING 失效
公开(公告)号：JPH059783A
公开(公告)日：1993-01-19
申请号：JP15816691
申请日：1991-06-28
申请人： KAWASAKI STEEL CO
发明人： KURIHARA KENJI , AOKI FUMIO , YAMASHITA AKITOSHI
IPC分类号： C21D1/00 , C25D5/50
摘要： PURPOSE:To prevent the stain of a tin electroplated steel sheet in quenching at the time of remelting the tin layer of the sheet. CONSTITUTION:A tin electroplated steel sheet 1 just remelted is cooled in a quenching tank 4. In this case, cooling water mixed with fine gas bubbles is injected on the steel sheet 1 from a nozzle 2 formed with a double tube and having a slit open hole in the cross direction. Consequently, ebullient vapor bubbles are dispersed, the vapor film is not deposited on the surface of the steel sheet 1, the steel sheet 1 is uniformly cooled in its cross direction, and the stain is prevented in quenching.

8. 发明专利

JPH0459997A ELECTROLYTICALLY TREATING EQUIPMENT OF METALLIC STRIP AND ELECTROLYTIC TREATMENT 失效
公开(公告)号：JPH0459997A
公开(公告)日：1992-02-26
申请号：JP16897490
申请日：1990-06-27
申请人： KAWASAKI STEEL CO
发明人： KAWAMURA KATSUTO , HIMENO MAKOTO , KOKADO FUMIO , AOKI FUMIO
IPC分类号： C25D7/06 , C25D17/12 , C25D21/00
摘要： PURPOSE:To obtain a plated metallic sheet which is free from unevenness of plating thickness and has stabilized quality by constituting an electrolytically treating equipment of a plating liquid tank, a fluidized tank and rolls and also providing a screen and a dispersion plate, etc., to the fluidized tank and smoothly introducing and discharging a granular consumable anode. CONSTITUTION:The electrolytically treating equipment is constituted of a communicated plating liquid tank 1, a fluidized tank 13, a contact roll and a backup roll, etc., and formed into a horizontal type. The fluidized tank 13 is provided oppositely to the rear surface of a strip 2 and has apertures in the upper part and the lower part. These apertures are communicated with the means 10, 16 through which plating liquid E flows. Furthermore, the fluidized tank 13 is provided with a second screen 3, a first screen 4, and a dispersion plate 12. A chamber 15 is limited by the screen 4 and the dispersion plate 12. A granular consumable anode 15 is packed hereinto. The chamber 15 is communicated with the feed port 11 of the anode. The consumed anode 5 is passed through the first screen 4 and discharged through a passage 16.

9. 发明专利

JP2000273682A METHOD FOR PREVENTING SURFACE DEFECT OF TIN ELECTROPLATED STEEL SHEET 失效
公开(公告)号：JP2000273682A
公开(公告)日：2000-10-03
申请号：JP8278799
申请日：1999-03-26
申请人： KAWASAKI STEEL CO
发明人： NAKAZAWA DAICHI , KONISHI TSUNEMI , AOKI FUMIO , KAWAMURA KATSUTO
IPC分类号： C25D3/30 , C25D5/50 , C25D7/06
摘要： PROBLEM TO BE SOLVED: To make it possible to stably prevent the generation of tin powder and arc spots by applying tin plating to a steel sheet, regulating the surface temperature of a pair of conductor rolls to a specific range and electrically heating the steel sheet with a reflow treatment, thereby melting the tin. SOLUTION: The steel sheet subjected to tin plating is washed in a dry out tank and a rinsing tank and is sent to a reflow device in a tin electroplating line. In the reflow device, the steel sheet is subjected to the reflow treatment for energizing the steel sheet between a pair of the conductor rolls installed apart a prescribed spacing to electrically heat the steel sheet to the melting point of the tin or above to melt the tin on the surface, then immediately guiding the steel sheet to a quenching tank with quenching rolls and cooling the same. The surface temperature of the conductor rolls is preferably so regulated as to exceed 30 deg.C and below 70 deg.C or the temperature of the cooling water of the conductor rolls is regulated to attain a range of 45 to 55 deg.C in this operation. As a result, the occurrence of defective articles is prevented and the productivity is improved.

10. 发明专利

JPH09263987A METHOD FOR RELIEVING APPEARANCE DEFECT OF TIN-FREE STEEL 失效
公开(公告)号：JPH09263987A
公开(公告)日：1997-10-07
申请号：JP7696596
申请日：1996-03-29
申请人： KAWASAKI STEEL CO
发明人： AOKI FUMIO , YASUNAGA HISAO , YOSHIDA MINEO
IPC分类号： C25D3/04 , C25D5/14
摘要： PROBLEM TO BE SOLVED: To provide a technique of removing the defects of defective appearance materials generated at the time of plating when such materials inevitably occur or after the plating and reliving the materials as first-class products in production of tin-free steel. SOLUTION: This method for relieving the appearance defect of the tin-free steel formed by subjecting a steel sheet to electrolytic chrome plating comprises degreasing the steel sheet 1 after electrolytic chrome plating in an aq. alkaline soln. 2, then subjecting the steel sheet to an electrolysis at an electric quantity of >=3C/dm in an aq. soln. 4 of a sulfuric acid concn. of >=10g/l and further preferably, subjecting the steel sheet to a rinsing treatment followed by electrolytic chrome plating again.

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