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71. 发明专利

JPS6326244A STATIONARY SHORT SIDE FOR CONTINUOUS CASTING OF THIN INGOT 失效
公开(公告)号：JPS6326244A
公开(公告)日：1988-02-03
申请号：JP16562686
申请日：1986-07-16
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： KUGA MASAAKI , MORIWAKI SABURO , KITANO YOSHIHISA , YASUKAWA NOBORU , TOZAWA KOICHI , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent the generation of double surfaces at the end face of a thin ingot and to improve the yield of the ingot by disposing a metallic layer or refractory layer having good heat conductivity near the meniscus of a stationary short side heat insulating layer. CONSTITUTION:The side face of the stationary short side heat insulating layer 7 having the shape converging downward from the upper to the lower part is coated with the metallic layer 8'' and a metallic plate 8' consisting of copper, etc., is provided to the lower part. The refractories having the good heat conductivity or the metallic layer 10 is further disposed near the meniscus part of the heat insulating layer 7. Alumina, zircon, etc., are used for the refractories having the good heat conductivity and copper, etc., are used for the metallic layer. A rectangular solidified shell is formed near the stationary short side meniscus part by the above-mentioned mechanism. The intrusion of the molten steel between the stationary short side walls and the solidified shell is prevented by such solidified shell. The generation of the double surfaces of the thin ingot is prevented and the yield is improved by the above-mentioned method.

72. 发明专利

JPS62275550A SHORT DUMMY BAR FOR BELT TYPE CONTINUOUS CASTER 失效
公开(公告)号：JPS62275550A
公开(公告)日：1987-11-30
申请号：JP11494186
申请日：1986-05-21
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： KITANO YOSHIHISA , KOSHIKAWA TAKAO , MORIWAKI SABURO , KUGA MASAAKI , BESSHO NAGAYASU , KIMURA TOMOAKI
IPC分类号： B22D11/06 , B22D11/08
摘要： PURPOSE:To shorten casting preparation time and to dissolve the difficulty at the time of drawing cast sheet by arranging an attraction means on dummy bar surface contacting with metallic belt, composing of the long side face of a mold. CONSTITUTION:Such as a magnet 10, etc., as the attraction means on the short dummy bar 12 surface contacting with the metallic belt 1, composing of the long face of the mold is arranged. By this attracted force, the difference of the drawing resistance of the cast sheet and the friction force between the metallic belt 1 and the cast sheet is supplemented. Therefore, the dummy bar 12 sticking to the cast sheet is smoothly drawn out together with rotation of the metallic belt 1. In case of producing the width change of the mold in the same running and even different kind of steel, the casting preparation time is shortened and reduction of the productivity is prevented.

73. 发明专利

JPS62270256A MOLTEN METAL POURING METHOD FOR BELT TYPE CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS62270256A
公开(公告)日：1987-11-24
申请号：JP11377186
申请日：1986-05-20
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： KITANO YOSHIHISA , KOSHIKAWA TAKAO , MORIWAKI SABURO , YASUKAWA NOBORU , BESSHO NAGAYASU , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To enable casting of a wide strip, to prevent the thermal deformation of metallic belt and to stably execute the casting by pouring molten metal into a casting space composing of the metallic belt and short side mold by plural of submerged nozzles. CONSTITUTION:The molten metal 5 in a tundish 1 is poured into the casting composing of the metallic belt 3 and the short side mold 10 through plural submerged nozzle 2. In this way, a distance between the submerged nozzle 2 and the short side mold 10 is possible to less, and in case of casting the wide strip, the molten metal temp. near the short side mold 10 is held to high. Therefore, wedge shaped solidified shell near the short side mold is not formed, and the operational trouble caused by restraint breakout is decreased.

74. 发明专利

JPS62238049A BELT COOLING METHOD FOR BELT TYPE CONTINUOUS CASTER 失效
公开(公告)号：JPS62238049A
公开(公告)日：1987-10-19
申请号：JP7831086
申请日：1986-04-07
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： BESSHO NAGAYASU , TOZAWA KOICHI , FUJII TETSUYA , KUGA MASAAKI , MORIWAKI SABURO , YASUKAWA NOBORU , TAMURA NOZOMI , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To reduce the heat deformation of metallic belts and to make sure of the thickness accuracy of a casting sheet by supplying fluid having higher temp. than a cooling temp. at range, where the belts contact with molten metal or the casting sheet, to the range, brought into contact with the molten metal or the casting sheet, and the adjoining range. CONSTITUTION:Cooling pad 8, in which lines of water supplying holes and lines of drainage holes are arranged alternately, is arranged at the range, with where the metallic belt 2 and the casting sheet 7 contact. Warm water or steam, etc., is supplied to the metallic belt from water supplying holes B1 of the cooling pad 8, corresponding to the upper part of the meniscus position and water supplying holes B2 at the side margin part of the cooling pad 8 range corresponding to the range, where the metallic belt is brought into contact with the molten metal and the casting sheet, and cooling water is flowed out from water supplying holes A, to cool the metallic belt 2. In this way, the casting sheet makes sure of the thickness accuracy.

75. 发明专利

JPS62203643A WATER FILM THICKNESS CONTROLLING DEVICE FOR BELT TYPE CASTER 失效
公开(公告)号：JPS62203643A
公开(公告)日：1987-09-08
申请号：JP4403486
申请日：1986-03-03
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： MORIWAKI SABURO , KOSHIKAWA TAKAO , KITANO YOSHIHISA , EMOTO KANJI , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To cast a casting slab having constant thickness without breakout by dividing a water film forming apparatus into short sides and portions corresponding to molten metal and arranging a water film thickness detecting device and a flow rate controlling value in the water film forming apparatus. CONSTITUTION:The water film thickness at the portion corresponding to the molten metal part is measured by the water film thickness detecting device 11' and water pressure is adjusted by controlling the flow rate controlling valve 12' for cooling water, so as to come to the prescribed water film thickness for the water film thickness at there. Further, the water film thickness at the portion corresponding to the short side wall 6 is measured by the water film thickness detecting devices 11, 11' and water pressure is adjusted by controlling the flow rate controlling valves 12, 12', so as to come to the prescribed thickness for the water film thickness there at. In this way, changing of the water film thickness by deformation of a metallic belt 1 at the portion corresponding to the molten metal is prevented, and also as developing of gap between the metallic belt and the short side wall, by deformation of the metallic belt 1 at the portion corresponding to the short side wall, is prevented, the development of the breakout is prevented.

76. 发明专利

JPS62176648A BELT TYPE THIN CASTING BILLET CONTINUOUS CASTING EQUIPMENT 失效
公开(公告)号：JPS62176648A
公开(公告)日：1987-08-03
申请号：JP21980086
申请日：1986-09-19
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： BESSHO NAGAYASU , TOZAWA KOICHI , FUJII TETSUYA , NOZAKI TSUTOMU , MORIWAKI SABURO , YASUKAWA NOBORU , TAMURA NOZOMI , SUZUKI MICHIO , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent casting fins and thermal deformation of a belt by arranging a movable partition plate in a header of a cooling device and also a driving device, which shifts the partition plate in width direction of thin casting billet. CONSTITUTION:In order to make a cooling water rate per unit width flowed at both side parts of the moving belt larger than the rate flowed at a center part thereof, water supply tubes 16a, 16b, 17a, 17b at a side part capable of adjusting flow rate and water supply tubes 18, 19 at a center part having the same function are provided to the water supply headers 7, 8 and movable parti tion plates 9a, 9b, 10a, 10b are arranged. When a casting space 5 is determined by shifting side plates 3, 4 through side plate driving devices 15a, 15b, in accor dance with this determination, the partition plates 9a, 9b, 10a, 10b are shifted to suitable position by the partition plate driving devices 13a, 13b, 14a, 14b to balance the cooling water rate. In this way, the casting fins and the thermal deformation of the belt are prevented.

77. 发明专利

JPH0825005A PRODUCTION OF METAL THIN STRIP 失效
公开(公告)号：JPH0825005A
公开(公告)日：1996-01-30
申请号：JP16370594
申请日：1994-07-15
申请人： KAWASAKI STEEL CO
发明人： ISHIZUKA HARUHIKO , MORIWAKI SABURO , SUHARA TAKASHI , TAMURA NOZOMI , SHIGA NOBUISA
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent generation of stripe shape hole defect in metal thin strip at the early stage of casting so as to eliminate generation of accident by reducing the rotating speed of a cooling body at the early stage of casting to lower than that of steady state in producing the metal thin strip by continuously injecting molten metal on the surface of cooling body rotating in high speed. CONSTITUTION:The molten metal heated/melted by a melting/holding furnace 8 is supplied to a tundish 11 and is injected on the surface of a cooling roll 2 rotating in high speed through a nozzle slit 1, a thin strip 4 is produced by rapid cooling and is wound to a coil shape by a coiling device 5. In this operation, at the casting early stage of fixed period from injecting start a rotation speed of the cooling roll 2 is made slower as compared to that of the steady state stage. By this method, the metal thin strip 4 is prevented from generation of stripe shape hole defect, the good quality metal thin strip 4 is obtained throughout whole period from unsteady state to early casting stage.

78. 发明专利

JPH07116788A COILING DEVICE FOR RAPIDLY COOLED SOLIDIFIED THIN METAL STRIP 失效
公开(公告)号：JPH07116788A
公开(公告)日：1995-05-09
申请号：JP26630693
申请日：1993-10-25
申请人： KAWASAKI STEEL CO
发明人： KATO KAZUYUKI , NAKAGAWA KENJI , MORIWAKI SABURO , SATO TORU
IPC分类号： B22D11/06 , B21C47/02
摘要： PURPOSE:To provide the coiling device for a thin metal strip in which damage is not caused on the outer circumferential surface of the strip coiled by a take-up reel and in which the coil is not loosened. CONSTITUTION:This is the device in which a rapidly cooled solidified thin metal strop 2, which is obtained by ejecting molten metal to the outer circumference of a cooling roll rotating at high speed and by rapidly cooling and solidifying it, is coiled by a take-up reel 1 after separating from the cooling roll. A curved guide 3, which is recessed along the circumferential surface of the take-up reel 1 and is circular-arcuate in the cross-section, is provided in the proximity of and in a retractable state against the take-up reel 1. Rotary guides 5a, 5b are each rotatably provided on both tip ends of this curved guide 3; and a belt 6 with a small sliding resistance is stretched between the tip ends of respective rotary guides 5a, 5b while enclosing, under a pressure the outer circumferential coil surface of the rapidly solidified thin metal strip 2 that has been coiled by the take-up reel 1 by the closing action of the rotary guides 5a, 5b.

79. 发明专利

JPH079095A PRODUCTION OF THIN METAL STRIP 失效
公开(公告)号：JPH079095A
公开(公告)日：1995-01-13
申请号：JP15915293
申请日：1993-06-29
申请人： KAWASAKI STEEL CO
发明人： KUROKAWA KATSUMI , SATO TORU , SHIBUYA KIYOSHI , SUHARA TAKASHI , MORIWAKI SABURO
IPC分类号： B22D11/06
摘要： PURPOSE:To obtain a thin strip having a prescribed thickness and to stably manufacture a sound thin strip by obtaining inclining quantity of a pouring nozzle to a cooling roll during pouring molten metal, estimating gap at the position actually injecting molten metal with the inclined nozzle, controlling the gap to a prescribed value and further, correcting the inclination of the pouring nozzle. CONSTITUTION:At the time of producing the thin metal strip by injecting the molten metal on the surface of a cooling single roll 2 rotated at high speed from a slit 7 in the pouring nozzle 1 and rapidly solidifying, in the control of the gap between the pouring nozzle 1 and the cooling single roll 2, two measuring ranges 8, 9 adjoined to the bottom surface being apart from the slit 7 of the pouring nozzle 1, are arranged. Gap (g) between each measured range and the surface of the cooling single roll, is measured in an optical method. Based on the measured result, by obtaining the inclining quantity of the pouring nozzle, the actual gap at the molten metal injecting point is calculated.

80. 发明专利

JPH06320240A METHOD AND DEVICE FOR CONTROLLING GAP BETWEEN COOLING ROLL AND NOZZLE IN PRODUCTION OF RAPID COOLED METALLIC THIN STRIP 失效
公开(公告)号：JPH06320240A
公开(公告)日：1994-11-22
申请号：JP11327493
申请日：1993-05-14
申请人： KAWASAKI STEEL CO
发明人： AOKI HIDEMI , MORIWAKI SABURO
IPC分类号： B22D11/06
摘要： PURPOSE:To obtain a rapid cooled metallic thin strip having good quality and uniform thickness by suitably controlling gap between the tip part of a supplying nozzle for molten metal and the surface of a cooling roll along the generator of the cooling roll. CONSTITUTION:The molten metal in a tundish 1 is continuously supplied onto the cooling roll 3 rotating at a high velocity through the supplying nozzle 2 to continuously produce the metallic thin strip. The detected value detected with a gap detector 4a at the right side is transmitted to an arithmetic unit 5a. In this arithmetic unit 5a, a deviation quantity between a preset gap reference value and the detected gap value is calculated and transmitted to an interference correcting quantity arithmetic unit 6. In the same way, in an arithmetic unit 5b, a deviation quantity between the gap reference value and the detected value is calculated and transmitted to the interference correcting quantity arithmetic unit 6. In this interference correction quantity arithmetic unit 6, the sum of the calculated interference correction quantity and the deviation quantity is calculated, and the obtd. result is transmitted to control quantity arithmetic units 7a, 7b. In the control quantity arithmetic unit, a control variable is calculated and a tundish driving devices 8a, 8b are driven to adjust the gap to a desired fixed value.

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