专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2000096116A METHOD FOR ENLARGING MIXER CAR 失效
公开(公告)号：JP2000096116A
公开(公告)日：2000-04-04
申请号：JP27113298
申请日：1998-09-25
申请人： KAWASAKI STEEL CO
发明人： YUDE TAKAO , SAITO SATOSHI , OGURA SHIGERU , KARIYA KAZUHIRO , HAMADA SHUNJI , SUYAMA KENICHI , TAKASHIBA NOBUMOTO
IPC分类号： C21C1/06
摘要： PROBLEM TO BE SOLVED: To increase the capacity of a mixer car by increasing the diameter and/or the length of a barrel part in a vessel using the existing carriage and in the strength range of the carriage without changing the whole length of the vessel. SOLUTION: In order to enlarge the vessel 1, e.g. the diameter of the carrel part 4 is changed from 3660 mm to 4040 mm and also, the axial height of a tilting axis is raised by 100 mm. Then, since the whole length is unchanged, a conical angle α is changed from 30 deg. to 34 deg. and the length of the barrel part 4 is changed from 3740 mm to 4190 mm, i.e., increased by 450 mm. In this way, the capacity of the vessel 1 is increased by about 30% and the average carrying quantity of molten iron is increased from 280 ton to 350 ton. Further, the position of the center of gravity of a mixer car becomes higher by 100 mm but the fear of the turnover is not developed in the relation with the rail width (1067 mm). This enlarging work is executed by separately manufacturing each of the carrel part 4, conical part 5 and opening part metal 8 and thereafter, integrating it by welding as the vessel 1.

2. 发明专利

JPH08238548A METHOD FOR REPAIRING CONTINUOUSLY CAST SLAB 失效
公开(公告)号：JPH08238548A
公开(公告)日：1996-09-17
申请号：JP4201995
申请日：1995-03-01
申请人： KAWASAKI STEEL CO
发明人： MOCHIDA TETSUO , BESSHO NAGAYASU , KARIYA KAZUHIRO
IPC分类号： B22D11/12 , B22D11/16
摘要： PURPOSE: To prevent the development of blow flaw while restraining the lowering the product yield to the min. limit by scarfing the surface of a slab only at a specific position. CONSTITUTION: A video camera 11 is set to above a mold 1 for pouring molten metal by immersing an immersion nozzle 2 and the inside part in the mold 1 is photographed. This picture is inputted into a video deck 12 and the separating position of the casting gas is directly observed from the screen of a monitor 13. The molten metal forms the solidified shell 8 in the mold 1 and draws out in the arrow mark 6 direction as the slab 4. Blowing gas bubble 9 is developed into the molten steel in the mold 1. The gas separated from the molten steel surface is observed with the video camera 11 and the longitudinal directional position of the slab developing the separation of the gas in the range of

3. 发明专利

JPH06226403A METHOD FOR CONTINUOUSLY CASTING LOW ALUMINUM STEEL 失效
公开(公告)号：JPH06226403A
公开(公告)日：1994-08-16
申请号：JP1635493
申请日：1993-02-03
申请人： KAWASAKI STEEL CO
发明人： KARIYA KAZUHIRO , KAMEYAMA KYOICHI , HAMAGAMI KAZUHISA
IPC分类号： B22D11/00 , B22D11/10 , B22D11/108 , B22D11/11 , B22D11/111
摘要： PURPOSE:To continuously cast a high quality low aluminum high oxygen steel in both parts of the surface layer part and the inner part without nozzle clogging by limiting Sol.Al in a tundish to a specific value and casting a high quality slab without blowing inert gas into an immersed nozzle. CONSTITUTION:The Sol.Al in the tundish is limited to

4. 发明专利

JPH10267762A SAMPLING METHOD AND DEVICE IN MEASURING TEMPERATURE OF MOLTEN METAL 失效
公开(公告)号：JPH10267762A
公开(公告)日：1998-10-09
申请号：JP7509597
申请日：1997-03-27
申请人： KAWASAKI STEEL CO
发明人： KARIYA KAZUHIRO , OGURA SHIGERU
IPC分类号： G01K13/12 , G01N1/10 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To facilitate the sampling in measuring a temperature of molten metal after powder injection refining by storing a lance insertion position of a molten metal surface at the time of powder injection refining, and inserting a probe for temperature measurement sampling into the same position as the insertion position. SOLUTION: An insertion position profiling device accurately moves a sampling probe 5 to an insertion position HP of an injection lance 6. Namely, at the time of temperature measurement sampling, the probe 5 is led to the insertion position HP by shifting a pair of masts 10a, 10b mounted in parallel on a lateral moving carrier 8. This device comprises an insertion position detecting means of powder injection lance into a molten metal surface, a storing means for storing the insertion position of lance detected, and a driving means for moving up and down the prove 5 as well as laterally moving the laterally moving carriage to the stored position.

5. 发明专利

JPH10263775A METHOD AND DEVICE FOR MOVING SENSOR FOR MOLTEN METAL SURFACE LEVEL IN MOLD 失效
公开(公告)号：JPH10263775A
公开(公告)日：1998-10-06
申请号：JP7314097
申请日：1997-03-26
申请人： KAWASAKI STEEL CO
发明人： KARIYA KAZUHIRO , ODAWARA MASANORI
IPC分类号： B22D11/16 , B22D11/04 , B22D11/05
摘要： PROBLEM TO BE SOLVED: To improve cast slab surface quality by maintaining a level sensor to detect a molten metal surface in a mold at a prescribed distance from a short side copper plate and moving the sensor in parallel along a center in a mold thickness direction so as to control a molten metal surface at an optimum position. SOLUTION: A sensor operating device 10 moves linearly a sensor 4 to detect a molten metal surface in a mold 1. A sensor position controller 20 controls the sensor operating device 10 by inputting a moving quantity of a short side copper plate 1b detected with a short side position sensor 6. By moving a servo- motor based on a moving command corresponding to a moving quantity of the short side copper plate 1b from the sensor position controller 20, a rear end of an arm 11 moves in curve corresponding to a circular arc of a rack. An intermediate part of the arm 11 is slided in following spin of a support body 13 corresponding to moving of the rear end part, a tip part of the arm 11 is moved in linear. By this method, the sensor 4 is moved in linear in the mold 1, molten metal surface level control can be stabilized.

6. 发明专利

JPH10263754A METHOD FOR CHANGING MOLD WIDTH IN CONTINUOUS CASTING 失效
公开(公告)号：JPH10263754A
公开(公告)日：1998-10-06
申请号：JP7693697
申请日：1997-03-28
申请人： KAWASAKI STEEL CO
发明人： TAKAO NIHARU , SUGISAWA MOTOTATSU , KARIYA KAZUHIRO
IPC分类号： B22D11/04 , B22D11/05 , B22D11/10 , B22D11/114 , B22D11/115
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of scratch on the wall surface in the long sides of a mold by deccelerating the casting speed to the speed without causing inclusion defect in the case of impressing no magnetic field, stopping the impression of the magnetic field, executing the change of mold width, restarting the impression of the magnetic field after completing the change of the width, and accelerating the casting speed to the ordinary speed. SOLUTION: The mold for continuos casting is constituted with the mold long side walls 1a, 1b and the mold short side walls 2a, 2b. The impression of the magnetic field is stopped and the mold short side walls 2a, 2b are shifted. Scale, etc., stuck to the mold long side walls 1a, 1b and the mold short side walls 2a, 2b with the magnetic force is separated from the walls by stopping the impression. During moving the mold short side walls 2a, 2b, the scale is not entered into gaps 7a, 7b, 8a, 8b of the short side copper plates with the long side copper plates between the long side walls 1a, 1b and the short side walls 2a, 2b, and the scratch on the mold long side wall surfaces 9a, 9b is not caused. The casting speed at the time of stopping the magnetic field is 4/5-9/10 of the ordinary speed preferably.

7. 发明专利

JPH0994640A METHOD FOR DISCHARGING RESIDUAL MATERIAL IN TUNDISH AND DEVICE FOR ELEVATING/LOWERING TUNDISH WEIR USED THEREFOR 失效
公开(公告)号：JPH0994640A
公开(公告)日：1997-04-08
申请号：JP25135595
申请日：1995-09-28
申请人： KAWASAKI STEEL CO
发明人： MATSUMURA KENJI , SHIMIZU MASUHITO , KATO KAZUYUKI , KARIYA KAZUHIRO
IPC分类号： B22D11/10 , B22D43/00
摘要： PROBLEM TO BE SOLVED: To improve the efficiency of a casting operation by lowering a tundish weir after completing the discharge of residual material. SOLUTION: At the time of supplying molten steel 20 into a tundish providing a tundish nozzle 9, the inner part of the tundish is sectioned into a part in which the nozzle 9 exists and a part in which the nozzle 9 does not exist, with the tundish weir 3. After supplying the molten steel, the tundish weir 3 is elevated to pass the molten steel through each part. The elevating/lowering of the tundish weir 3 is executed by pushing/removing between the inclining surfaces 6a-6d of an inclining member and the inclining surfaces 7a-7d of an inclining member 7 connected through a vertical member 5. In such a way, the residual material composed of the molten steel 20 and flux 21 in the part, in which the tundish nozzle 9 does not exist, is discharged from the nozzle 9 through a gap at the lower end of the weir 3 and further, after completing the discharge of the residual material, the weir 3 is lowered. By this method, the tundish can sequentially be reused without executing the troublesome removing operation of the residual material.

8. 发明专利

JP2003094155A CONTINUOUS CASTING METHOD FOR STEEL 审中-公开
公开(公告)号：JP2003094155A
公开(公告)日：2003-04-02
申请号：JP2001288460
申请日：2001-09-21
申请人： KAWASAKI STEEL CO
发明人： ITOYAMA SEIJI , KARIYA KAZUHIRO , NABESHIMA YUKI , KISHIMOTO YASUO
IPC分类号： B22D11/16 , B22D11/108 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To stably manufacture a cast piece which has proper casting lubrication and also has no surface defect, even when ultra-high viscosity mold powder with a viscosity η of not less than 0.5 Pa.s (5 poises) at 1,300 deg.C and with a solidification temperature (breakpoint) of not less than 1,000 deg.C is used. SOLUTION: A piece of steel is cast under the condition that the relationship between a tilt angle β ( deg.) of the long side surface of a vertical mold (provided that the direction where the thickness of the mold gets narrow in the direction of the exit of the mold is plus) and a vibration stroke S (mm) of the mold satisfies the relationship of the following equation (1): 2×10 mm mm...(1) and also, a ratio of maximum upward velocity Vm (m/min) of the mold to casting velocity Vc (m/min) of the mold in mold vibration satisfies a range of the following equation (2). 0.8

9. 发明专利

JP2000178630A STEELMAKING METHOD FOR CONVERTER 失效
公开(公告)号：JP2000178630A
公开(公告)日：2000-06-27
申请号：JP35423998
申请日：1998-12-14
申请人： KAWASAKI STEEL CO
发明人： OGAWA HISASHI , OGURA SHIGERU , KARIYA KAZUHIRO , KITANO YOSHIHISA , NOMURA HIROSHI
IPC分类号： C21C5/28 , C21C5/46 , C22C33/04
摘要： PROBLEM TO BE SOLVED: To minimize the adding quantity of lime while achieving the refining with the nedded quality. SOLUTION: The (T.Fe) concn. 102 in slag at the steel tapping time is calculated based on a target carbon concn. at the steel tapping time and a target steel tapping time. The slag quantity 101 at the steel tapping time is calculated based on the (T.Fe) concn. in the slag at the steel tapping time, etc. Further, (CaO) concn. 111 in the slag at the steel tapping time is calculated based on the (T.Fe) concn. in the slag at the steel tapping time, etc. Lime quantity 108 charged into a converter is calculated from the slag quantity and the (CaO) concn., etc., at the steel tapping time calculated in such ways. The lime quantity to be charged into the converter is accurately obtd.

10. 发明专利

JP2000087129A VACUUM DEGASSING EQUIPMENT 失效
公开(公告)号：JP2000087129A
公开(公告)日：2000-03-28
申请号：JP25524098
申请日：1998-09-09
申请人： KAWASAKI STEEL CO
发明人： KARIYA KAZUHIRO , NOMURA HIROSHI
IPC分类号： C22B9/04 , C21C7/10
摘要： PROBLEM TO BE SOLVED: To quickly and perfectly execute the exchange of a degassing vessel by forming the separating direction of the vacuum degassing vessel with a gas exhaust duct to almost a tube axial direction of the gas exhaust duct. SOLUTION: To skull, the action of shearing direction is not received but the force of tension direction is loaded by separating a duct connecting tube 3 and a gas exhaust duct 1 along the tube axial direction. Therefore, the detachment between the skull stuck on the tube inner surface and the tube inner wall, is developed and the separation can be executed in comparatively easy way. For this purpose, the shifting direction of the vacuum degassing vessel 2 is made to shift and retract along the separating direction of the connecting part C of the duct. That is, the shifted vacuum degassing vessel 2a is separated in the tube axial direction of the gas exhaust duct 1, and after straightly retracting as it is, this vessel is exchanged with the other vacuum degassing vessel 2b under waiting in the retracting line of the cross rails 6 and simultaneously retracted as the retracted vacuum degassing vessel 2c.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式