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1. 发明专利

DE2936680A1 未知
公开(公告)号：DE2936680A1
公开(公告)日：1980-03-13
申请号：DE2936680
申请日：1979-09-11
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI TERUYUKI , HITOMI KIYOSHI
IPC分类号： B21B1/08 , B21B1/088
摘要： A method of producing, by universal mills, H-beams which are excellent in the strength and toughness of the joint between web and flanges. In roughing process, symmetric convexes, which have substantially the same cross section and differ in position in different mills, are alternately formed on at least either of the outer and inner sides of the web and flanges of the piece being rolled, to forcibly cause metal flow in the joints between web and flanges and thereby to increase the amount of strain of the joints. In finishing process, the convexes formed in the roughing process are pressed, thereby obtaining a H-beam having predetermined dimensions.

2. 发明专利

CA1125550A METHOD OF PRODUCING H-BEAMS 未知
公开(公告)号：CA1125550A
公开(公告)日：1982-06-15
申请号：CA335441
申请日：1979-09-11
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI TERUYUKI , HITOMI KIYOSHI
IPC分类号： B21B1/08 , B21B1/088
摘要： A method of producing, by universal mills, H-beams which are excellent in the strength and toughness of the joint between web and flanges. In roughing process, symmetric convexes, which have substantially the same cross section and differ in position in different mills, are alternately formed on at least either of the outer and inner sides of the web and flanges of the piece being rolled, to forcibly cause metal flow in the joints between web and flanges and thereby to increase the amount of strain of said joints. In finishing process, the convexes formed in said roughing process are pressed, thereby obtaining a H-beam having predetermined dimensions.

3. 发明专利

JPH02187211A TENSION CONTROL DEVICE 失效
公开(公告)号：JPH02187211A
公开(公告)日：1990-07-23
申请号：JP399489
申请日：1989-01-11
申请人： KAWASAKI STEEL CO , TOSHIBA CORP
发明人： HITOMI KIYOSHI , KINDO HIDENORI , KUDO HIDETOSHI , ISAKI MINEYUKI , SEKI YOSHIRO , ITAGAKI KOICHI
IPC分类号： B21B37/00 , B21B37/48
摘要： PURPOSE:To diminish the fluctuation of dimensions of material at the exit side of the final stand and to obtain the products of high quality by operating tensions as going in order to the upstream side on the basis of a fixed tension at the exit side of the final stand and a looper. CONSTITUTION:The forward tension t i at the (i) stand is cul-operated by inputting the torque deviation Gi+1 at the (i+1) stand on the downstream side by the torque and tension conversion circuit for the (i+1) stand. The determined forward tension t i at the (i) stand is controlled as to be the target tension tRi by the tension control circuit 16 for the (i)-(i+1) stand. The obtained forward tension t i at the (i) stand is input in the torque conversion circuit 158 for the (i) stand and the component torque Gi of forward tension at the (i) stand due to the t i is operated. In the same way, the torque deviation Gi at the (i) stand on the downstream side is input and the forward tension at the (i-1) stand is operated by the torque/tension conversion circuit 60 for the (i) stand. And the forward tension t i-1 at the (i-1) stand is controlled so as to be the target tension tRi-1 by the tension control circuit 6 between the (i-1)-(i) stand.

4. 发明专利

JPH01123034A METHOD AND APPARATUS FOR DIRECTLY HEAT-TREATING HOT-ROLLED WIRE ROD 失效
公开(公告)号：JPH01123034A
公开(公告)日：1989-05-16
申请号：JP27968487
申请日：1987-11-05
申请人： KAWASAKI STEEL CO
发明人： SETO TSUNEO , MINE KIMIO , HITOMI KIYOSHI
IPC分类号： B21B43/00 , B21B45/02 , C21D9/52
摘要： PURPOSE:To simplify the process and to save the consumable energy by soaking a hot rolled wire rod, forming as ring-state, air-cooling, piling as coil-state in slow cooling pot and slow-cooling under the specific condition. CONSTITUTION:Temp. of the hot rolled wire rod 1 just after passing the last rolling stand 2 is measured with a thermometer 3 and cooled with a water cooling device 4 so as to come to about 750-900 deg.C and formed as ring-state with a laying head 7. The temp. of the ring-state wire rod 1' is returned up through carrying conveyor 6 and measured with a thermometer 5 and the wire rod ring 1' made to uniform temp. at an outlet side of the carrying conveyor 6 is dropped into the slow cooling pot 10 and piled to make the coil 8. When the wire rod 1 by one coil quantity is packed as the coil 8, by descending a bottom plate 12, the slow cooling pot 10 is put on a turn table 25. At the time of putting plural slow cooling pots 10 on the turn table 25, the slow cooling pots 10 are carried to a temporary stock yard with a carriage and slow-cooled from the temp. range of 750-900 deg.C to at least 500 deg.C at 0.1-0.01 deg.C/sec cooling velocity.

5. 发明专利

JPH058859A STACKING METHOD FOR LONG MATERIAL 失效
公开(公告)号：JPH058859A
公开(公告)日：1993-01-19
申请号：JP18574891
申请日：1991-06-28
申请人： KAWASAKI STEEL CO
发明人： ITAKURA HITOSHI , HITOMI KIYOSHI
IPC分类号： B65G57/18 , B65G57/32
摘要： PURPOSE:To provide a method for realizing a special effect when an existing material collecting equipment (transfer) is utilized, in relation to stack long materials, such as steel sheet piles. CONSTITUTION:The given number of long materials is stacked by means of a plurality of long material stacking devices 4 installed between equipment of a long material traversing transfer train. When the stacking work is completed, stacked long materials are placed on a transfer and the stacking device 4 itself is moved to a position below the pass line of the transfer. After the long material passes the overhead position of the stacking device 4, it is moved to a position above the pass line again and a subsequent long material is stacked.

6. 发明专利

JPH0255617A MANUFACTURE OF WIRE COIL EASY TO LOOSEN AND BUNDING DEVICE 失效
公开(公告)号：JPH0255617A
公开(公告)日：1990-02-26
申请号：JP20481288
申请日：1988-08-19
申请人： KAWASAKI STEEL CO
发明人： SASADA MIKIO , HITOMI KIYOSHI , YAMAZAKI HIDEO , HATANAKA ATSUSHI
IPC分类号： B21C47/10 , B21C47/24
摘要： PURPOSE:To prevent an oblique insertion into accumulated coils by guiding the outer periphery of ring-shaped wire for plural sliding guides which incline in sequence and giving a fixed interval to continuously falling rings. CONSTITUTION:The wire 11 taken up in the shape of a ring is transferred on a conveyor and falls into a reforming tab 10. Plural guide bars 7 hang in the reforming tab 10 and oscillate through a turn buckle 6, a crank 4, a driven wheel 3, a belt 2 and a driving wheel 1. Since the guide bar 7 restrains the outer peripheral part of the falling wire ring 11 according to the position of rotation of the crank when the crank 4 rotates, a position of fall and accumulation can be controlled. Further, plural guide bars 7 oscillating in the shape of a pendulum change their inclinations in sequence, are guided along the side of the outer diameter of the ring, the ring 11 is not dropped obliquely but horizontally into the accumulated coils and the neighboring rings fall in sequence in spite of variation of the ring diameter to control the position of accumulation.

7. 发明专利

JPS62263923A MANUFACTURE OF DIRECTLY-SOFTENED STEEL WIRE ROD 失效
公开(公告)号：JPS62263923A
公开(公告)日：1987-11-16
申请号：JP10451786
申请日：1986-05-07
申请人： KAWASAKI STEEL CO
发明人： MINE KIMIO , HOSHINO TOSHIYUKI , NODA AKIO , HITOMI KIYOSHI
IPC分类号： B21B1/16 , C21D8/06 , C21D8/10
摘要： PURPOSE:To carry out the direct softening treatment of a steel wire rod by utilization of hot-rolling heat, by successively applying intermediate rolling, the primary finish rolling, the secondary finish rolling, and slow cooling to a roughed steel wire rod under specific conditions. CONSTITUTION:After roughed, the steel wire rod is subjected to intermediate rolling at a temp. in the temp. region of 700-850 deg.C at 20-80% draft. Subsequently, this wire rod is subjected to the primary finish rolling at a temp. in the temp. region of 700-850 deg.C to undergo acceleration of transformation into ferrite-pearlite phase as well as of refining of austenitic grain size, which is further subjected to the secondary finish rolling at a temp. in the temp. region of 650-750 deg.C at 20-60% draft, followed by slow cooling at

8. 发明专利

JPS5540057A PREPARATION OF WIDE FLANGE BEAM 失效
公开(公告)号：JPS5540057A
公开(公告)日：1980-03-21
申请号：JP11273178
申请日：1978-09-12
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI TERUYUKI , HITOMI KIYOSHI
IPC分类号： B21B1/08 , B21B1/088
摘要： PURPOSE:To elevate strength and toughness of the fillet part, by forming a convex part on the outside face or the inside face of the web part and the flange part, subsequently pressing this convex part, and finishing it to wide flange beam, in case wide flange beam is rolled and produced. CONSTITUTION:As for the angle steel with is used as a rail for the monorail, it is especially required that its fillet part has excellent strength and toughness. In this case, rolling is carried out alternately by use of the universal rolling mill which has the horizontal rolls 42 of sectional form having the concave parts 44 at the position corresponding to both inside faces of the fillet parts of rolled material, and the usual vertical rolls 16; and the universal rolling mill which has the vertical rolls 48 having the concave parts 46 at the outside of the fillet parts of rolled material, and the usual horizontal rolls 14. Rolling is carried out repeatedly so that the outside and the inside of the fillet part can have the convex parts 52 and the convex parts 50, respectively. Since the movement of both the convex parts 50, 52 in the rolling process gives a large distortion amount to the fillet parts, and the diameter of ferrite grains is minimized, toughness and strength of the fillet parts are increased.

9. 发明专利

JPS53132450A PRODUCTION OF H SHAPED STEEL 失效
公开(公告)号：JPS53132450A
公开(公告)日：1978-11-18
申请号：JP4812377
申请日：1977-04-25
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI TERUYUKI , HITOMI KIYOSHI
IPC分类号： B21B1/08 , B21B1/088

10. 发明专利

JPH10152751A HIGH STRENGTH SHAPE STEEL FOR TIMBERING, EXCELLING IN DUCTILITY AFTER COLD WORKING, AND TIMBERING 失效
公开(公告)号：JPH10152751A
公开(公告)日：1998-06-09
申请号：JP26035597
申请日：1997-09-25
申请人： KAWASAKI STEEL CO , NIPPON STEEL CORP
发明人： HITOMI KIYOSHI , IMAMURA HARUYUKI , MAKI YOSHIAKI , SAITO SHINZO , UCHIDA KIYOSHI , HASEGAWA HIROYUKI
IPC分类号： C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To produce superior high strength shape steel for timbering for use in tunneling work, excellent in yield strength and tensile strength, by adding specific amounts of Ti, Nb V, etc., to a shape steel, prepared by using a low carbon steel as a stock, to reduce the amount of solid-solution nitrogen and also setting carbon equivalent (ceq ) to a value in a specific range. SOLUTION: One or >=2 kinds among 0.003-0.030%, by weight, Ti, 0.005-0.060% Nb, and 0.005-0.100% V are further incorporated into a steel stock having a composition containing 0.10-0.20% C, 0.01-0.65% Si, 0.90-1.60% Mn, 440MPa yield strength and >590MPa tensile strength, can be produced.

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