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61. 发明专利

JPH02200360A METHOD FOR CONTINUOUSLY SQUEEZING CAST SLAB STRAND 失效
公开(公告)号：JPH02200360A
公开(公告)日：1990-08-08
申请号：JP1636089
申请日：1989-01-27
申请人： KAWASAKI STEEL CO
发明人： MIZOTA HISAKAZU , MATSUKAWA TOSHITANE , KOJIMA SHINJI , ONO HIDETOSHI
IPC分类号： B22D11/128
摘要： PURPOSE:To prevent the development of surface defect caused by squeezing work by specifying shapes of anvils at the time of applying the squeezing work with one pair of the anvils having flat working surface in the final solidified zone of a cast slab strand in continuous casting. CONSTITUTION:At near the finishing solidified zone of internal molten steel in the cast slab strand drawn from a mold for continuous casting, the squeezing work is repeated with at least one pair of reciprocating type anvils sandwiching pass-line of the cast slab strand in the vertical direction. By hits method, center segregation can be effectively improved. In this case, the anvil is used which has squeezing reduction part composed of draft inclined surface 1 toward the introducing side of the cast slab strand and the flat working surface 2 connecting with the above surface, and the side faces 3 sandwiching the squeezing reduction part to the right and left sides, respectively, and satisfies the inequality I to the widths L1, L2 of the faces 1, 2 and conforms to condition of the inequality II. In the inequalities, h1: height from the surface 2 to the upper end of the surface 3, S: squeezing work rate, R: radius in round part at intersection of the squeezing reduction part and the face 3, delta: squeezing reduction rate (mm unit of the above items), theta: angle (degree with which the squeezing reduction part crosses with the surface 3.

62. 发明专利

JPH01321048A BOTH DIRECTIONAL DRAWING TYPE HORIZONTAL CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPH01321048A
公开(公告)日：1989-12-27
申请号：JP15375088
申请日：1988-06-22
申请人： KAWASAKI STEEL CO
发明人： KOJIMA SHINJI , MATSUKAWA TOSHITANE , TAKADA SHIGENOBU , MATSUI ISAO , SUDO FUMIO , FUJIMURA TOSHIO
IPC分类号： B22D11/04 , B22D11/06
摘要： PURPOSE:To improve surface characteristic on a cast billet and to increase casting velocity by constituting a feed ring with an inner layer having wear resistance and an outer layer having heat resistance and also smoothly forming the inner face and the lower face thereof as bugle state. CONSTITUTION:The feed ring 10 connected with mold copper plate 4 is constituted with the inner layer 10A having wear resistant material and the outer layer 10B having heat resistance. Further, the inner face and the lower face of the ring 10 are formed as smooth bugle state and connected with the feed nozzle 8 and the mold copper plate 4. By inserting the outer layer 10B having heat resistance, heat transferring cooling from the copper plate 4 is eliminated to prevent the development of excess solidification. By this method, molten metal flow at the lower face at the feed ring 10 is smoothened and the surface characteristic in the formed cast billet is improved. As the inner face and the outer face in the ring 10 is formed as the smooth bulge state, the molten metal flowing is further quickened. Therefore, the casting speed is increased.

63. 发明专利

JPH0140703B2 失效
公开(公告)号：JPH0140703B2
公开(公告)日：1989-08-30
申请号：JP11628484
申请日：1984-06-06
申请人： KAWASAKI STEEL CO
发明人： MATSUKAWA TOSHITANE , NANBA AKIHIKO , KINOSHITA KATSUO , MYAGAWA SABURO
IPC分类号： B22D7/06 , B22D27/04

64. 发明专利

JPS61289946A INGOT MAKING METHOD FOR STEEL 失效
公开(公告)号：JPS61289946A
公开(公告)日：1986-12-19
申请号：JP13258685
申请日：1985-06-18
申请人： KAWASAKI STEEL CO
发明人： MATSUKAWA TOSHITANE , KOJIMA SHINJI
IPC分类号： B22D7/10 , B22D27/06
摘要： PURPOSE:To decrease the generation of inverse V segregation and macro segregation, etc. by providing a riser part in the upper part at a convergent taper end of a hermetic casting mold of which the base is the max. wall surface of a flat casting mold having a taper, disposing a heat insulating material to the periphery thereof and protecting the surface of the molten steel to be poured into the mold with the heat insulating material. CONSTITUTION:The flat casting mold 1 is placed on a mold stool 4 with the max. wall surface of said mold as a bas and the apertures at both ends are held in place between side face molds 2 to form the hermetic casting mold. The riser part 3 is provided atop the end on the open side of the taper in a manner as to notch the mold 1 and the heat insulating material 7 is provided to the periphery thereof. The molten steel 6 is poured from the riser part 3 into the mold constituted in the above-mentioned manner and the surface of the molten steel is protected by a heat retaining material 8. Then the solidification on the riser part side is last as compared with the other sections and the cooling mainly consisting of the heat extraction from the base of the max. wall surface of the mold 1 is made possible. The solidification boundary approximately horizontally rises.

65. 发明专利

JPS60148651A CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS60148651A
公开(公告)日：1985-08-05
申请号：JP357184
申请日：1984-01-13
申请人： KAWASAKI STEEL CO
发明人： KOJIMA SHINJI , MATSUKAWA TOSHITANE , OONISHI MASAYUKI
IPC分类号： B22D11/10 , B22D11/115 , B22D11/12 , B22D11/128
摘要： PURPOSE:To obtain a defectless slab without forming a negative segregation zone by providing an electromagnetic stirrer or ultrasonic wave impressing device before the point where the solidification of a billet is completed and disposing a forging device of a reciprocating type near the point where the solidification is completed. CONSTITUTION:A molten metal supported by supporting rolls 3 descends from a casting mold 11 and is electromagnetically stirred by an electromagnetic stirrer 9 before the billet completes solidification. The billet is forged by a forging device 7 of a reciprocating type near the point where the solidification is completed. The dendrite cut by the flow of the molten steel by the stirrer 9 settles and an equi-axed crystal region is formed near the crater end. The billet is subjected to continuous forging of the plane by the device 7 in the state of having the equi-axed crystal zone in the central part, by which central segregation is considerably improved. The defectless continuous casting slab is obtd. without forming the negative segregation zone by the above-mentioned method.

66. 发明专利

JPS58125347A CONTINUOUS CASTING MACHINE FOR THIN SHEET 失效
公开(公告)号：JPS58125347A
公开(公告)日：1983-07-26
申请号：JP537282
申请日：1982-01-19
申请人： KAWASAKI STEEL CO
发明人： MATSUKAWA TOSHITANE , KOJIMA SHINJI , TAKASHIBA NOBUMOTO
IPC分类号： B22D11/06
摘要： PURPOSE:To make the production of a thin sheet possible easily with continuous casting by supplying molten steel into a vessel constituted of a metallic belt of which the bottom part moves endlessly and refractory side walls and turning the metallic belt cyclically while cooling the same. CONSTITUTION:The bottom of a vessel formed of refractory material side walls 30, 31 which are adjustable in spacing is constituted of a thin metallic belt 33 which is turned endlessly by supporting rolls 35, 36, 37. Molten steel 4 is put from a tundish 3 into the vessel to form a molten metal well 34 therein. The opposite side of the belt 33 in contact with the molten steel 4 is cooled with the sprays of the cooling water from many nozzle openings 38a provided to a cooling plate 38 to form a solidified shell 39 of the molten steel on the belt 33. The shell 39 is drawn with pinch rolls 20, whereby a continuously cast thin sheet is obtained. The width of this sheet is changed freely by adjusting the spacing between the walls 30 and 31.

67. 发明专利

JPS5397993A PROCESS FOR PRODUCING WATERRCRUSHED SLAG 失效
公开(公告)号：JPS5397993A
公开(公告)日：1978-08-26
申请号：JP1341677
申请日：1977-02-09
申请人： KAWASAKI STEEL CO
发明人： TATENO JIROU , MATSUKAWA TOSHITANE
IPC分类号： C04B5/02 , C04B5/00 , C21B3/08

68. 发明专利

JP2000263198A METHOD FOR CONTINUOUSLY CASTING MOLTEN STEEL 失效
公开(公告)号：JP2000263198A
公开(公告)日：2000-09-26
申请号：JP7138899
申请日：1999-03-17
申请人： KAWASAKI STEEL CO
发明人： NAKAJIMA SATOSHI , ADACHI KAZUNARI , MATSUKAWA TOSHITANE , UESHIMA YOSHINORI
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To reduce the internal defect caused by enclosure of mold powder by setting the spouting quantity of molten steel so as to become the equal flowing speed at near both short side walls in a mold and pouring the molten steel into the mold from each spouting hole. SOLUTION: The immersion nozzle having the spouting holes 5 faced to both short side walls 6 in the mold, is set so as to shift this center axis in the direction along the side walls 5 from the center of the mold, and the molten steel is poured into the mold from each spouting hole 5. At this time, the spouting quantity from the immersion nozzle is decided so that the flowing speeds of the molten steel at near the short side walls 6 equal, and the molten steel is poured into the mold. In this way, periodical variation of the flow velocity on the surface of the molten steel can be restrained. As a means for adjusting the spouting quantity, e.g. the areas of the faced spouting holes 5 may be to mutually change in the immersion nozzle. That is, many immersion nozzles having different cross sectional areas of the faced spouting holes 5, are prepared and the flow velocity sensors are arranged at near both short side walls 6 in the mold, and the testing operations are executed to find the suitable immersion nozzle.

69. 发明专利

JPH11314751A TURNING DEVICE FOR LONG CONVEYED MATERIAL 失效
公开(公告)号：JPH11314751A
公开(公告)日：1999-11-16
申请号：JP12086398
申请日：1998-04-30
申请人： KAWASAKI STEEL CO
发明人： HATANAKA ATSUSHI , OMORI KAZUO , ASAHI ICHIRO , MATSUKAWA TOSHITANE , MATSUDA KEISHI
IPC分类号： B65G47/54 , B65G47/30
摘要： PROBLEM TO BE SOLVED: To make the cost of equipment inexpensive by simplifying its structure, insofar as possible. SOLUTION: This turning device is equipped with a plurality of retracting rollers 3a to 3e retracting a billet 2 successively fed from four conveyor lines A to D to the downstream part after receiving it one after another, and it is also equipped with a plurality of delivery rollers 4a to 4i whose axial directions turned to the direction orthogonal with the conveying direction after being turned, at the further downstream part of rollers 3e arranged at the most downstream part. These delivery rollers 4a to 4i are in close vicinity to the rollers 3e at the most downstream part, and a side guide 7 consisting of a thin platelike member extending along a conveyor line E is installed in the upper of an end on the reverse side to the roller 3e in making the cross direction turn to the vertical direction at a specified interval from the retracting roller 3e. Then, four rollers 9a to 9e, getting closer to a surface facing to the side of the roller 3e of the side guide 7, turning the axial direction to the vertical direction and capable shifting in the conveying direction after being turned are installed at the specified interval along the conveying direction after being turned.

70. 发明专利

JPH10263759A SUCTION TYPE CONVEYOR FOR RAPIDLY COOLED METALLIC STRIP 失效
公开(公告)号：JPH10263759A
公开(公告)日：1998-10-06
申请号：JP7693797
申请日：1997-03-28
申请人： KAWASAKI STEEL CO
发明人： KATO KAZUYUKI , MATSUKAWA TOSHITANE
IPC分类号： B22D11/128 , B22D11/06
摘要： PROBLEM TO BE SOLVED: To provide a suction type conveyor for rapidly cooled metallic strip capable of suppressing the meandering attributable to the thermal elongation of a belt. SOLUTION: A suction type conveyor for rapidly cooled metallic strip comprises a pair of rolls 1, 1A, an endless belt 8 stretched around the rolls 1, 1A, and a suction box 10 to suck the strip on a carrying surface of the endless belt 8, a bearing 3 of one (the roll 1) of the roll 1, 1A is supported by a spherical seat 3A, and the spherical seat is supported by a supporting mechanism having a spring 5 under the spring force in the separating direction from the other (the roll 1A) of the rolls.

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