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51. 发明专利

JPH0625773A MELTING AND CASTING METHOD FOR HIGH MELTING POINT METAL-CONTAINING AL BASE ALLOY 失效
公开(公告)号：JPH0625773A
公开(公告)日：1994-02-01
申请号：JP5064993
申请日：1993-03-11
申请人： KOBE STEEL LTD
发明人： NISHI SEIJI , MATSUZAKI HITOSHI , YOSHIKAWA KAZUO , KOGA YASUYUKI
IPC分类号： B22D21/04 , B22D23/00 , B22D27/04 , C22C1/02 , C23C14/34
摘要： PURPOSE:To obtain a high m.p. metal-contg. Al base alloy with a uniform compsn. in which the segregation of the gravity of intermetallic compounds such as Al3Ta is prevented and the compositional uniformity of a high m.p. metal-contg. Al base alloy material is remarkably improved and suitable, e.g., as a sputtering target material for forming a reflecting film for optical media, a wiring film for a liquid crystal display or the like. CONSTITUTION:At the time of melting and casting the Al base alloy contg. high m.p. metals such as Ta, Ti, Zr, Hf, V, Nb, Cr, W, Mo, Y and Mn, the melting is executed at the liquidus temp. of the alloy or above. The temp. of the molten metal in a mold till the completion of the pouring at the time of pouring the molten metal into the mold and executing casting is held to a temp. at which the intermetallic compounds of the high m.p. metals and Al are not formed in the molten metal in the mold at least at a time when the pouring is completed. After the completion of the pouring, the molten metal in the mold is rapidly cooled and is solidified.

52. 发明专利

JPH03271389A EQUIPMENT FOR ELECTROLYTICALLY REDUCING MOLTEN SALT OF ACTIVE METAL 失效
公开(公告)号：JPH03271389A
公开(公告)日：1991-12-03
申请号：JP7167090
申请日：1990-03-19
申请人： CENTRAL RES INST ELECT , KOBE STEEL LTD
发明人： TOKIWAI MORIYASU , KOYAMA MASASHI , SODO TATSUHIKO , OGAWA KATSUMI , MATSUZAKI HITOSHI , UMEDA NORIHIKO , ISHII TERUO , MIYAMOTO TADAO
IPC分类号： C25C3/00 , C25C3/34 , C25C7/00
摘要： PURPOSE:To continuously collect high-m.p. active metal and to prevent contamination of electrolytically produced metal by coating a vessel for collecting produced metal and a cathode by the refractory of an electric insulator mainly made of boron nitride in the case of electrolytically reducing molten salt. CONSTITUTION:Molten salt of active metal is electrolytically reduced in a molten salt bath 2 contg. fluoride as a main body. Active metal 7 is produced on a cathode 4 and collected in the bottom part of a vessel 1 for holding the molten salt. In this electrolytically reducing device, both a vessel 5 for collecting the produced metal 7 and the cathode 4 in a region brought into contact with the surface of the molten salt bath are coated by refractories 6, 9. These refractories 6, 9 are formed of an electrical insulator contg. >=90% boron nitride.

53. 发明专利

JP2006225687A SPUTTERING TARGET MADE FROM ALLOY COMPOSED OF Al, Ni AND RARE EARTH ELEMENT 有权
公开(公告)号：JP2006225687A
公开(公告)日：2006-08-31
申请号：JP2005037937
申请日：2005-02-15
申请人： KOBE STEEL LTD , KOBELCO KAKEN KK
发明人： KUGIMIYA TOSHIHIRO , TAKAGI KATSUHISA , MATSUZAKI HITOSHI , KITASHITA KOTARO , YONEDA YOICHIRO
IPC分类号： C23C14/34 , C22C21/00
摘要： PROBLEM TO BE SOLVED: To provide a sputtering target made from an alloy composed of Al, Ni and a rare earth element, which causes little warpage (deformation) when produced and while being used, can be precisely and efficiently produced, and can lead to a stable film-forming operation. SOLUTION: The sputtering target made from the alloy composed of Al, Ni and a rare earth element is a sputtering target made from an Al-based alloy containing Ni and a rare earth element; and includes chemical compounds having an aspect ratio of 2.5 or higher and a circle equivalent diameter of 0.2 μm or larger in an amount of 5.0×10 4 /mm 2 or more when a cross section perpendicular to a target plane is observed at a magnification of 2,000 times or higher. COPYRIGHT: (C)2006,JPO&NCIPI

54. 发明专利

JP2001121246A BELT TYPE CONTINUOUS CASTING METHOD 失效
公开(公告)号：JP2001121246A
公开(公告)日：2001-05-08
申请号：JP30059999
申请日：1999-10-22
申请人： KOBE STEEL LTD
发明人： MATSUZAKI HITOSHI , SAKAGUCHI KIYONOBU
IPC分类号： B22D11/06
摘要： PROBLEM TO BE SOLVED: To provide a belt type continuous casting method, by which the ununiformity of temperature developed in a cast slab is prevented by restraining a gap developed between movable casting belts and the cast slab. SOLUTION: This belt type continuous casting method is executed by providing one pair of the endless movable casting belts 2 and 3 and short side molds 5 disposed between this one pair of the endless movable casting belts 2 and 3, and by cooling and solidifying molten metal 14 poured into a mold part 11 consisting of these movable casting belts 2 and 3 and the short side molds 5 to produce a metallic thin plate 10. Surface smoothening rolls 9 and 9 are disposed to the rear surfaces of the movable casting belts 2 and 3 at the position where the deformable solidified shells having specified thickness are formed and also, the surface smoothening roll 9 is pushed to the thickness direction of the cast metallic thin plate 10 to execute the casting.

55. 发明专利

JP2001097708A PRODUCTION PROCESS FOR METALLIC SILICON 失效
公开(公告)号：JP2001097708A
公开(公告)日：2001-04-10
申请号：JP28154699
申请日：1999-10-01
申请人： KOBE STEEL LTD
发明人： MATSUZAKI HITOSHI , NAGAO MOTOHIRO , SAKAMOTO KOICHI , SODO TATSUHIKO
IPC分类号： C01B33/02
摘要： PROBLEM TO BE SOLVED: To provide a production process for metallic silicon of high purity without contamination with carbon. SOLUTION: When metallic silicon is produced, a silica powder is used as the feedstock and the powder is reduced with hydrogen as it is heated at a temperature of

56. 发明专利

JP2000000640A TWIN-ROLL CONTINUOUS CASTING EQUIPMENT 失效
公开(公告)号：JP2000000640A
公开(公告)日：2000-01-07
申请号：JP16978698
申请日：1998-06-17
申请人： KOBE STEEL LTD
发明人： SAKAGUCHI KIYONOBU , MATSUZAKI HITOSHI
IPC分类号： B22D11/06
摘要： PROBLEM TO BE SOLVED: To prevent penetration of molten metal by forming a pair of side gates of a self sliding material splitting, the side gates to right and left ones at the casting line, providing a pressing means to independently press aside a bottom part of the split side gates and a roll to reduce a gap between the side gates and the roll. SOLUTION: A continuous casting equipment directly manufactures a metallic sheet by passing a molten metal in a gap between rolls. Split side gates are split into two or more parts in a direction orthogonal to the casting direction, and each part is independently and movably mounted in the axial direction of the rolls. A self sliding material is preferably graphite. After bottom part of the side gates 10 is machined to the same curvature as that of a circumferential surface of rolls 1a, 1b, and split in right and left parts relative to the casting line, and further split into two. Split side gates 10a, 10b, 10c, 10d are mounted on a side gate support body 7, and a roll circumferential surface is independently pressed by springs 8a, 8b, 8c, 8d and holding plates 9a, 9b, 9c and 9d. The side gates are prevented from being broken, and the wear is reduced.

57. 发明专利

JPH1076351A BELT TYPE SHIN SLAB CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPH1076351A
公开(公告)日：1998-03-24
申请号：JP22996796
申请日：1996-08-30
申请人： KOBE STEEL LTD
发明人： SAKAGUCHI KIYONOBU , MATSUZAKI HITOSHI , YOSHIKAWA KATSUYUKI
IPC分类号： B22D11/06 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To prevent the breaking of a pouring nozzle and the leakage of molten metal and to improve safety in the operation by providing with the pouring nozzle so as to move and return with respect to a tundish and further providing with a molten metal feed stopping means. SOLUTION: A pair of endless belts 3 opposing each other are moved via a pulley 4, the molten metal is fed from the tundish 2 into a casting space formed between endless belts via the pouring nozzle 1 and cooled with a cooling device 5 and solidified to manufacture a cast slab. In the belt type thin slab continuous casting machine, the molten metal pouring nozzle 1 is made to move by sliding on a connecting tube 13 and further made to return by connecting the tundish 2 and a flange part 8 with a spring 10. Also, the claw 15 of a moving rod 11 attached to the flange part 8 is brought into contact with a limitter 14 when the molten metal nozzle 1 moves by a prescribed distance, a stopper 9 is operated with the signal via a stopper moving mechanism 12, and whereby the molten metal is stopped to feed.

58. 发明专利

JPH09201655A MOLTEN METAL POURING NOZZLE FOR SHIFTING MOLD THIN SLAB CONTINUOUS CASTER AND METHOD FOR POURING MOLTEN METAL IN THIN SLAB CONTINUOUS CASTER 失效
公开(公告)号：JPH09201655A
公开(公告)日：1997-08-05
申请号：JP840296
申请日：1996-01-22
申请人： KOBE STEEL LTD
发明人： SAKAGUCHI KIYONOBU , MATSUZAKI HITOSHI , YOSHIKAWA KATSUYUKI
IPC分类号： B22D11/16 , B22D11/06 , B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To enhance the safety of casting operation in a shifting mold thin slab continuous caster by preventing the leakage of molten metal from a gap between the shifting mold and a molten metal pouring nozzle to eliminate the happening of a secondary disaster, such as steam explosion. SOLUTION: A notching part 14 is arranged around the outer periphery of the tip part near a tundish 10 side from a tip sliding number 12 of the molten metal pouring nozzle 11 inserted into a shifting mold 4, and a thermocouple 15 is embedded so that the temp. measured point 15a positions at the tip side by 1-2mm from the notching part 14. When the temp. measured with this thermocouple 15 becomes the preset temp. or higher, a stopper 10a is automatically worked to stop the pouring of molten metal. In such a way, the development of crack communicated from the bottom part of the notching part 14 to the inner side is detected as the starting time of the breakage of the molten metal pouring nozzle 11 with the temp. raising caused by invasion of the molten metal, and the leakage of molten metal is prevented by stopping the pouring of molten metal before breaking the molten metal pouring nozzle 1.

59. 发明专利

JPH09192789A BELT TYPE CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPH09192789A
公开(公告)日：1997-07-29
申请号：JP750296
申请日：1996-01-19
申请人： KOBE STEEL LTD
发明人： SAKAGUCHI KIYONOBU , MATSUZAKI HITOSHI , YOSHIKAWA KATSUYUKI
IPC分类号： B22D11/16 , B22D11/04 , B22D11/055 , B22D11/06 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To restrain deformation of a belt by efficiently preheating the casting belts advanced to a mold zone, in a belt type continuous casting method, continuously producing a thin sheet-like cast slab by supplying molten metal into the mold formed with pair of the casting belts. SOLUTION: The inner part of the mold formed with the pair of casting belts 2 is divided into a cooling zone CZ at the upstream side and a preheating zone PZ at the downstream side. In the cooling zone CZ, the cooling of the casting belts 2 is executed by using cooling water injection nozzles 3 and the fin rolls 4. On the other hand, in the preheating zone PZ, the cooling is not executed and the casting belts 2 are pushed to the cast slab S by using the backup rolls 5 and heated with the heat thereof and the temp. of the pair of the casting belts 2 is raised in the preheating zone PZ in the mold. Therefore, the casting belts advanced to the mold zone are efficiently preheated without adding a special heating mechanism and the energy and therefore, the belt deformation is restrained and the quality of the cast slab can be stabilized.

60. 发明专利

JPH08132183A APPARATUS FOR CASTING AL ALLOY AND METHOD THEREOF 失效
公开(公告)号：JPH08132183A
公开(公告)日：1996-05-28
申请号：JP26908194
申请日：1994-11-01
申请人： KOBE STEEL LTD
发明人： MORISHITA MAKOTO , MATSUZAKI HITOSHI , YOSHIKAWA KATSUYUKI
IPC分类号： B22D11/00 , B22D11/04 , B22D11/049 , B22D43/00
摘要： PURPOSE: To simply and efficiently prevent the entrapment of oxide film formed on the surface of molten metal into a cast block by arranging an oxide film staying groove overflowing molten Al alloy accompanied with the oxide film through a weir at the pouring hole side of a water cooling mold and arranging a heating device in the weir. CONSTITUTION: The neighborhood of outer periphery of the oxide film 7 formed on the surface of the molten Al alloy 4 is stayed into the oxide film staying groove 14. Further, the weir 11 is continuously or intermittently heated and thus, the neighborhood of the outer periphery of the molten Al alloy 4 surface is kept to the liquid-phase condition to prevent the entrapment of the oxide film 7. Then, since only the molten Al alloy in the liquid-phase condition at the center part except the neighborhood of the inner wall of the mold can be supplied to the lower part of the mold, the cast block having smooth surface can be produced. Therefore, since the crack on the cast block caused by the entrapment of the oxide film 7 is prevented, the cast block can efficiently be transferred to the following process, and the scrap quantity can be reduced and the productivity is drastically improved.

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