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1. 发明专利

JPH08197106A ROLLING METHOD FOR STEEL PLATE WITH PROJECTION 失效
公开(公告)号：JPH08197106A
公开(公告)日：1996-08-06
申请号：JP2894095
申请日：1995-01-26
申请人： KAWASAKI STEEL CO
发明人： KITAHAMA MASANORI , HASHIMOTO TAKAFUMI , AKAZAWA HAJIME
IPC分类号： B21B27/02 , B21B1/08 , B21B1/22 , B21B13/06 , B21B15/00
摘要： PURPOSE: To provide a method for rolling steel plates with projections by which the decrease in the height of the projections in the end parts of width is prevented without changing the shape of roll caliber in the width direction and the uniform height of the projections in the width direction is obtained. CONSTITUTION: In the rolling method of the steel sheet with the projections by which rolling for reducing thickness is executed with a horizontal rolling mill 10 in which a roll having plural lines of the calibers 11A which are continued in the circumferential direction in the width direction, rolling for reducing the width is executed with a edger mill 20 preceding to rolling for reducing thickness with a horizontal rolling mill 10 and the steel sheet whose thickness in the end parts of width is increased by rolling for reducing width is supplied to rolling for reducing thickness with the horizontal rolling mill 10.

2. 发明专利

JPH0829324B2 失效
公开(公告)号：JPH0829324B2
公开(公告)日：1996-03-27
申请号：JP305986
申请日：1986-01-10
申请人： KAWASAKI STEEL CO
发明人： AZUMAOKA KOJI , OKUMURA HIROSHI , FUJIMOTO YOJI , HASHIMOTO TAKAFUMI , NAGASHIMOYAMA HARUMI
IPC分类号： B21B1/08 , B21B1/088

3. 发明专利

JPH06277759A ROLLER STRAIGHTENING DEVICE FOR H-STEEL 失效
公开(公告)号：JPH06277759A
公开(公告)日：1994-10-04
申请号：JP7371593
申请日：1993-03-31
申请人： KAWASAKI STEEL CO , HITACHI SHIPBUILDING ENG CO
发明人： OMORI KAZUO , KONO MIKIO , HASHIMOTO TAKAFUMI , YOSHIMURA YOSHIO , NAGAO MASARU , KIMURA MASAO
IPC分类号： B21D3/05
摘要： PURPOSE:To largely improve the working efficiency and to easily and rapidly change a roller. CONSTITUTION:In a roller straightening device for an H-steel, a roller unit combined with a flange restricting roller 2, a web pressing roller 3 and a flange top end pressing roller 4 is assembled inside a frame body by making the arrangement along the longitudinal direction of an H-steel 1 and alternated inside and outside the web, and a moving mechanism moving the roller unit along the longitudinal direction of the H-steel is arranged on the frame body F.

4. 发明专利

JPS62161402A METHOD FOR DECREASING RESIDUAL STRESS IN WEB OF WIDE FLANGE BEAM 失效
公开(公告)号：JPS62161402A
公开(公告)日：1987-07-17
申请号：JP305986
申请日：1986-01-10
申请人： KAWASAKI STEEL CO
发明人： AZUMAOKA KOJI , OKUMURA HIROSHI , FUJIMOTO YOJI , HASHIMOTO TAKAFUMI , NAGASHIMOYAMA HARUMI
IPC分类号： B21B1/08 , B21B1/088
摘要： PURPOSE:To improve the quality of a product and to reduce the cost of production by reheating a wide flange beam in the mid-way or upon completion of rolling with a break down mill then reducing the temp. difference between the web and flanges thereof and rolling the beam with a finishing mill. CONSTITUTION:The wide flange beam is reheated in a heating furnace, etc., in the mid-way or upon completion of rolling with the break down mill to make the reverse of the temp. difference of 70-100 deg.C between the web and the flanges so that the web is made higher in the temp. than the flange in the stage of rolling the wide flange beam with a universal rolling mill group, etc. The wide flange beam is subjected in such temp. state to universal rough rolling and finish rolling. The temp. difference after the finish rolling is offset in accordance with the difference in the thicknesses of the web and flanges by which the temp. difference is made approximately zero. The residual stress of the product after cooling is thus decreased and the product quality is improved by the above-mentioned method. The web waviness of the product is eliminated and the cost for reducing the thin-walled wide flange beam is reduced.

5. 发明专利

JPH08197102A MANUFACTURE OF EXTREMELY THICK WIDE-FLANGE STEEL EXCELLENT IN TOUGHNESS AND WELDABITLITY 失效
公开(公告)号：JPH08197102A
公开(公告)日：1996-08-06
申请号：JP724595
申请日：1995-01-20
申请人： KAWASAKI STEEL CO
发明人： UCHIDA KIYOSHI , NISHIMORI MASANORI , MATSUZAKI AKIHIRO , AMANO KENICHI , HASHIMOTO TAKAFUMI
IPC分类号： B21B3/00 , B21B1/08 , B21B1/088 , C21D8/00 , C21D9/00 , C22C38/00 , C22C38/48 , C22C38/54 , C22C38/58
摘要： PURPOSE: To obtain an extremely thick wide-flange steel excellent in impact toughness and weldability by executing air cooling after applying reduction to flange parts in a specified temp. range to the steel whose chemical composition and C-equivalent are specified. CONSTITUTION: A steel base stock which consists of, by weight, 0.05-0.15% C,

6. 发明专利

JPH0284202A METHOD FOR ROLLING H-SHAPE STEEL 失效
公开(公告)号：JPH0284202A
公开(公告)日：1990-03-26
申请号：JP23339388
申请日：1988-09-20
申请人： KAWASAKI STEEL CO
发明人： HAYASHI HIROYUKI , YOSHIDA HIROSHI , ISOBE KUNIO , AKUNE TOSHIYUKI , FUJIMOTO YOJI , SETO TSUNEO , HASHIMOTO TAKAFUMI
IPC分类号： B21B1/088 , B21B1/08
摘要： PURPOSE:To manufacture H-shape steels having different flange thicknesses and a constant web height by performing rough universal rolling of a breakdown rolled shaped bloom and then rolling the bloom by a universal rolling mill provided with segmented rolls for web thickness drafting and a finish universal rolling mill. CONSTITUTION:A breakdown rolled shaped bloom having a web and flanges is subjected to rough universal rolling reducing a web thickness, flange thickness, and flange width by a universal tolling mill 1. Then, one or more rollings to reduce and to adjust a web width of the bloom by a universal rolling mill 3 provided with width changeable segmented rolls 3a for web thickness drafting. Further, a flange angle is raised by a finish universal rolling mill 4 provided with segmented rolls 4a whose structure is equal to that to the rolls 3a to manufacture an H-shape steel.

7. 发明专利

JPH01322012A LEVEEING METHOD 失效
公开(公告)号：JPH01322012A
公开(公告)日：1989-12-27
申请号：JP15328088
申请日：1988-06-21
申请人： KAWASAKI STEEL CO
发明人： OHARA YUKITO , SAKURAI MASAO , KONDO SHINJI , NAKAO IWAO , HASHIMOTO TAKAFUMI
IPC分类号： E02B3/12 , E02B3/06 , E02D5/04
摘要： PURPOSE:To make its form easier to manufacture and combine it with a rectilinearly shaped steel sheet-pile equipped with forked joints so as to construct it at a low cost, by integrally forming each wing piece for engagement on each end of the web of a steel sheet-pile in its longitudinal direction, the cross section of which latter pile is in a U-shape, so as to form them together in a pi-shape. CONSTITUTION:Each wing piece 1d for engagement is installed on each end of the web 1a of the main body of each steel sheet-pile in its longitudinal direction, the pile constituted of its web 1a, its flanges 1b and its joints 1c, and the cross section of which is in a U-shape, so that they are formed together in a pi-shaped steel sheet pile 1. And each pi-shaped steel sheet-pile 1 is placed with the surface of its web 1a facing toward a water area, then each U-shaped steel sheet-pile 2 is placed with the surface of its web 2a facing toward a bank while each of joints 2c and each of the joints 1c are engaged together. After they have successively been placed in sequence likewise, each rectilinearly shaped steel sheet pile 3 provided with each forked joint paired (a) on each end is placed while each wing piece 1d is fittingly inserted into each forked joint 3a.

8. 发明专利

JPS5952013B2 失效
公开(公告)号：JPS5952013B2
公开(公告)日：1984-12-17
申请号：JP2497481
申请日：1981-02-24
申请人： KAWASAKI STEEL CO
发明人： NAKAGAWA YASUHIRO , HASHIMOTO TAKAFUMI , SHINJO YUTAKA , TAKE HIDEO
IPC分类号： C22C38/00 , B22D11/10 , B22D11/108 , B22D11/11 , B22D11/124

9. 发明专利

JPS57149003A ROLLING METHOD FOR U-SHAPED STEEL SHEET PILE 失效
公开(公告)号：JPS57149003A
公开(公告)日：1982-09-14
申请号：JP3386381
申请日：1981-03-11
申请人： KAWASAKI STEEL CO
发明人： YOSHIDA HIROSHI , SASAKI TOORU , KONDOU NOBUYUKI , HASHIMOTO TAKAFUMI
IPC分类号： B21B1/08 , B21B1/082 , B21B45/02
摘要： PURPOSE:To prevent the generation of cambers in a U-shaped steel sheet pile during colling in the stage of producing the said steel sheet pile by hot rolling by controlling the temp. in the flange parts of the steel sheet piles to the temp. between Ar3 and Ar1. CONSTITUTION:In the stage of producing a U-shaped sheet pile having a web 1 of a thick-walled part, flanges 2 of thin-walled parts and lug parts 3 in the end parts thereof by hot rolling, the U-shaped steel sheet pile is cooled from the inner or outer side on the table roller between intermediate caliber rolling mills and finish caliber rolling mills prior to finish rolling of the intermediate point produced by rough caliber rolling and intermediate caliber rolling with the finish caliber rolling mills. This steel sheet pile is subjected to the final finish rolling while the temp. of the part of the flanges 2 is maintained at the temp. between the respective transformation points Ar3 and Ar1 of the steel material used. At this time, the finishing temp. of the web 1 is also reduced down to the temp. right above the Ar3 point, whereby the difference in the rates of thermal contraction between the web 1 and the flanges 2 is reduced and the generation of cambers in the U-shaped steel sheet pile is prevented.

10. 发明专利

JPS57139455A CONTINUOUS CASTING METHOD FOR SEA WATER RESISTANT STEEL 失效
公开(公告)号：JPS57139455A
公开(公告)日：1982-08-28
申请号：JP2497481
申请日：1981-02-24
申请人： KAWASAKI STEEL CO
发明人： NAKAGAWA YASUHIRO , HASHIMOTO TAKAFUMI , SHINJIYOU YUTAKA , TAKE HIDEO
IPC分类号： C22C38/00 , B22D11/10 , B22D11/108 , B22D11/11 , B22D11/124
摘要： PURPOSE:To prevent the generation of defects in and out of an ingot and to improve production efficiency by limiting the amts. of Al, Si and S contained in copper-contg. high-phosphorus sea water resistant steel and performing cryogenic casting and mild cooling. CONSTITUTION:In continuous casing of a beam blank of copper-contg. high- phosphorus sea water resistant steel, the molten steel in a tundish is quickly cooled at

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