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1. 发明专利

JPS63238956A METHOD FOR POURING MOLTEN METAL IN MOVING MOLD TYPE CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS63238956A
公开(公告)日：1988-10-05
申请号：JP7374787
申请日：1987-03-27
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： FUKASE HISAHIKO , MATSUI KUNIO , TSUCHIDA YUTAKA , NAKADA MASAYUKI
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent breakage of a nozzle and crack of a cast slab by pouring molten metal while giving periodic vibration toward casting direction to the nozzle inserting into the space of one pair of caterpillar moving molds to cut off connection of solidified shell at tip of the nozzle and solidified shell at rear end of the cast slab. CONSTITUTION:The nozzle 5 of a tundish 4 is inserted into the space 3 composing of one pair of caterpillar moving block molds 1 and the vibration is given to it at every the prescribed time toward casting direction by actuator 7. The poured molten metal 8 is flowed into the space 3 and the solidified shells 10, 9 are formed at the tip part of the nozzle 5 and the rear end of the cast slab. Even in case both solidified shells 10, 9 begin to connect, they are cut off by the above mechanical vibration. Further, by this vibration, the molten metal 8' flow at triple points is strengthened and the contacting point of the solidified shells 10, 9 is easily melted, and the solidified shell at contacting point is easily and surely cut off. As the solidified shell at the position, which is apart a little from tip of the nozzle 5, is cut off, the nozzle 5 is not damaged and also the cast Slab is scarcely influenced.

2. 发明专利

JPS62244555A MOLD FOR BLOCK TYPE CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS62244555A
公开(公告)日：1987-10-24
申请号：JP8900286
申请日：1986-04-17
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： FUKASE HISAHIKO , MATSUI KUNIO , NOMURA AKIHIRO , OSADA SHIRO , TSUCHIDA YUTAKA
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent the thermal deformation of cooling block and development of residual strain by dividing the cooling block composing of mold for continuous casting machine in the width direction to the prescribed pieces and contacting closely each divided cooling piece as separable. CONSTITUTION:The mold is constituted by going round the cooling block chain 2 connecting the cooling blocks 1 on the endless chains so as to form the straight walls 3 on facing each other, and a casting sheet 4 is cast on the surface of the cooling block 1 while the shell being grown gradually. In the above constituent mold for the block type continuous caster, the above cooling block 1 is constituted under being divided to plural cooling block pieces 5 in the width direction. The above each cooling block piece 5 is brought into closely contact with side by side pieces on the contacting face 6 with the molten metal as separable by a compressing spring 13 through a guide rod 11, which pieces in the penetrated hole by drilling, and a holding piece 8, and a shaft for prevention of rotation 16 is arranged in a U-shape groove 14. In this way, as the thermal expansion of the cooling block 1 caused by the molten metal is absorbed by the above compressing spring 13, the developments of the thermal deformation and residual strain are prevented and the above mold is enabled practical use.

3. 发明专利

JPS62207538A SHIFTING MOLD TYPE CONTINUOUS CASTER 失效
公开(公告)号：JPS62207538A
公开(公告)日：1987-09-11
申请号：JP5181086
申请日：1986-03-10
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： MATSUI KUNIO , FUKASE HISAHIKO , TSUCHIDA YUTAKA
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent molten metal leakage at a tundish nozzle part by burying a magnetic field generator in each block mold of a shifting type mold to generate eddy current in the molten metal. CONSTITUTION:Each magnetic field generator 6 in the plural block molds 1' at near the tundish nozzle 4 is worked among the block molds 1 shifted as rotating by a driving motor. Then, the shifting magnetic field is generated at the tundish nozzle 4 part, and as the result, the eddy current is generated in the molten metal 7, to generate a force toward progressing direction in the molten metal 7. Therefore, the molten metal 7 is flowed toward the shifting direction of the block mold 1' without inserting in the gap 8 between the tundish nozzle 4 and the block mold 1', and the casting sheet is formed continuously and smoothly.

4. 发明专利

JPS6257747A CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS6257747A
公开(公告)日：1987-03-13
申请号：JP19721585
申请日：1985-09-06
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： FUKASE HISAHIKO , MATSUI KUNIO , TAZOE NOBUHIRO , TSUCHIDA YUTAKA
IPC分类号： B22D11/06
摘要： PURPOSE:To avert the problem arising from the deviation in the insertion position of a nozzle by detecting the actual moving position of the nozzle mounted to a moving carriage by a sensor and adjusting the position of the nozzle by a position adjusting mechanism. CONSTITUTION:The sensor 10 detects the actual position of the nozzle 2 just before the nozzle 2 is inserted between moving molds 1. A position control section determines the posture of the nozzle 2 from the detection signal thereof. The position control section controls respective servocontrol actuators 6 to adjust the posture of the nozzle 2 to the intended posture. More specifically, a guide body 7 is displaced in lateral directions by the actuator 6 mounted to the guide body 7 to displace the nozzle 2 together with the moving carriage 4 to the right and left. The actuator 6 is associatedly extended and contracted to vertically move the nozzle 2 together with the moving carriage 4 or to move the same in all directions. The nozzle 2 is adjusted to the correct posture and is quickly inserted between the moving molds 1 in the above-mentioned manner.

5. 发明专利

JPS6254560A STARTING METHOD FOR CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS6254560A
公开(公告)日：1987-03-10
申请号：JP19149785
申请日：1985-08-30
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： FUKASE HISAHIKO , MATSUI KUNIO , TAZOE NOBUHIRO , TSUCHIDA YUTAKA
IPC分类号： B22D11/06 , B22D11/08 , B22D11/20
摘要： PURPOSE:To eliminate the deterioration of the surface characteristic of an ingot and the rupture of the ingot by detecting the stage just before the inside of the cavity between a nozzle and a dummy bar is filled with a molten steel by a temp. sensor and starting the operation of a continuous casting machine at the same instant when the cavity is full of the molten metal. CONSTITUTION:The nozzle 6 and dummy bar 7 of a tundish 5 are inserted between endless blocks 3 and 4 driven by driving rolls 1, 2 and the temp. sensor 9 for detecting the temp. in the position at the top end on the nozzle 6 side is provided in the cavity 8. The sensor 9 detects the stage just before the cavity is full of the molten metal when the inside of the cavity 8 is filled with the molten metal after starting of pouring. Then the sensor inputs a detection signal to a control device 10. The device 10 outputs a command signal 11 to operate the driving motors 1, 2 and the dummy bar 7 and starts the operation of the continuous casting machine at the same instant when the cavity 8 is full of the molten metal. The deterioration of the surface characteristic of the ingot and the rupture thereof are thereby eliminated.

6. 发明专利

JPS6254558A METHOD FOR PREVENTING TRIPLE POINT OF CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS6254558A
公开(公告)日：1987-03-10
申请号：JP19150185
申请日：1985-08-30
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： FUKASE HISAHIKO , MATSUI KUNIO , TAZOE NOBUHIRO , TSUCHIDA YUTAKA
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent the cooling at the top end of a nozzle and the generation of a triple point problem and to form a casting plate having a good surface without plate breakage by continuously supplying intermediate materials having a heat insulating characteristic and consumability between the pouring nozzle and moving molds of a continuous casting machine. CONSTITUTION:The intermediate materials 7 such as carbon fibers or ceramic fibers having the heat insulating characteristic and consumability are continuously supplied between the pouring nozzle 6 and moving blocks 3, 4 of the continuous casting machine, by which a molten metal 10 is continuously cast. THe top end of the nozzle 6 is not cooled by the materials 7. Solidified shells 11 of the molten metal 10 are, therefore, not formed at the top end of the nozzle 6 and begin to form from the surface contact parts of the blocks 3, 4 to which the molten metal progresses. The generation of the triple point problem of the shell 11 welding arising from the cooling at the top end of the nozzle 6 in contact with the blocks 3, 4 is thus prevented and the defects by the generation of the breakage and surface crack of the casting plate are surely prevented. The materials 7 are annihilated by combustion and the cooling of the molten metal 10 by the blocks 3, 4 is not hindered.

7. 发明专利

JPS6254555A NOZZLE SEALING DEVICE FOR CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS6254555A
公开(公告)日：1987-03-10
申请号：JP19149885
申请日：1985-08-30
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： MATSUI KUNIO , FUKASE HISAHIKO , TAZOE NOBUHIRO , TSUCHIDA YUTAKA
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent the generation of a triple point problem and to provide a dynamic seal of a molten metal so as to improve the surface of a cast plate by supplying a sealing gas between moving molds from a refractory sealing material in contact with the moving molds provided on the external side face of a nozzle of a continuous casting machine. CONSTITUTION:The self-wearing type refractory sealing material 4 consisting of boron, etc. is provided in the position of a prescribed distance X from the end of the external side face of the continuous casting machine nozzle 3 so as to contact with the moving molds 2. The inert sealing gas 5 is supplied to the space 8 between the molds 2 on the front side from the material 4 and the distance L from the molten metal 7 projecting into the space 8 from the material 4 is adequately controlled optically or by detecting the pressure in the space 8. The generation of the triple point problem arising from the solidified shell growing in the contact part between the edge of the nozzle 3 and the molds 2 is prevented and the cast plate is formed to the good surface free from defects and plate breakage by the dynamic sealing of the molten metal 7.

8. 发明专利

JPS61199555A MOLD DRYING METHOD FOR CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS61199555A
公开(公告)日：1986-09-04
申请号：JP4076385
申请日：1985-03-01
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： FUKASE HISAHIKO , MATSUI KUNIO , TAZOE NOBUHIRO , NISHIOKA SHINICHI , INAMOTO KINYA , SATO HIROAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent steam explosion and to assure the safety of operation by heating the moisture sticking to the surface of the molds (cooling blocks with an endless track type and twin rolls with a twin roll type) of a continuous casting machine so that the steam is vaporized until the moisture arrives at the inlet for a molten steel. CONSTITUTION:The surface temp. of the blocks 1 of the endless track type continuous casting machine, etc. is detected by a thermometer and the temp. and flow rate of the cooling medium to be passed in the blocks 1 are properly controlled in accordance with the result of the detection with the thermometer to maintain the surface temp. of the blocks at the b. p. of water or below. The moisture 8 sticking to the surface of the block 1 is thus vaporized by heat in the midway of moving to the pouring side of the molten steel 5 by which the surface of the blocks 1 is thoroughly dried. The evaporation of the moisture is also possible when a hot wind dryer, etc. are disposed on the outside of the blocks to apply heat from the outside. The above-mentioned method is also similarly executable as a mold drying method of twin roll type and various other continuous casting machines.

9. 发明专利

JPS61195764A METHOD AND DEVICE FOR CONTROLLING POURING RATE OF CONTINUOUS CASTING MACHINE FOR THIN SHEET 失效
公开(公告)号：JPS61195764A
公开(公告)日：1986-08-30
申请号：JP3684485
申请日：1985-02-26
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： TAZOE NOBUHIRO , DAZAI KEIJI , FUKASE HISAHIKO , MATSUI KUNIO , OZEKI AKIYA , TSUCHIDA YUTAKA
IPC分类号： B22D11/06 , B22D11/00 , B22D11/18
摘要： PURPOSE:To prevent the generation of various troubles owing to the formation of semi- solidified matter at the ends in the transverse direction in the stage of casting continuously a thin sheet with a twin roll type continuous casting device by making the pouring rate of the molten steel at the ends in the transverse direction of a casting mood larger than the pouring rate in the central part in accordance with the temp. distribution in the transverse direction of the continuously cast slab. CONSTITUTION:A gate frame 4 is formed of two cooling rolls 1, side sealing plates 3 and barrel sealing plates 2 and the molten steel 5 in a tundish 9 is poured by three pouring nozzles 8 therein. The molten steel is taken out as the thin sheet of continuously cast slab 7 from a gap 6 while the molten steel is cooled by the rolls 1, 1. The molten steel 5 in the frame 4 is cooled earlier on the plate 3 side than in the central part and the semi-solidified matter grows abnormally in the roll gap 6 on the inside surface side of the plates 3. The breakage and cracking of the slab 7 are resulted therefrom. The temp. distribution in the transverse direction of the pouring nozzles 7 is measured by a temp. detector 14 in such a case and the value thereof is fed back to pour the molten metal more from the nozzles on the end sides in the transverse direction among the nozzles 8 by which the formation of the semi- solidified matter is prevented and the thin slab is stably produced.

10. 发明专利

JPS61195752A INTER-BLOCK DEWATERING DEVICE FOR BLOCK TYPE CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS61195752A
公开(公告)日：1986-08-30
申请号：JP3685085
申请日：1985-02-26
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： FUKASE HISAHIKO , MATSUI KUNIO , TAZOE NOBUHIRO , HASEBE NOBUHISA , SAKO KATSUYUKI
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent steam explosion by disposing air injectors between casting blocks. CONSTITUTION:The air injectors 8 provided with many air nozzles 7 are disposed to the required positions on both side faces of blocks 6 which are connected to an endless shape. The nozzles 7 are disposed in the direction of the adjacent blocks 6 and also in the outside direction of the block 6. The air injection pressure is so adjusted as to be made higher in the part where the opening degree between the blocks 6 and 6 is large and to be made lower as the opening degree is smaller. The water drips sticking to the side surfaces of the respective blocks 6, 6 of a casting mold 3 and the water drops to intrude between the blocks are blown off by the air jets according to the above- mentioned method. The steam explosion as a result of the contact of the water drips with the molten metal is thus prevented.

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