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1. 发明专利

JPH0819837A DEVICE FOR ATTACHING/DETACHING NOZZLE FOR MOLTEN METAL 失效
公开(公告)号：JPH0819837A
公开(公告)日：1996-01-23
申请号：JP17754994
申请日：1994-07-06
申请人： TOSHIBA CERAMICS CO , TOSHIBA CORP , SUMITOMO METAL IND
发明人： IURA SHINICHIRO , SATO AKIRA , MIZUTANI SHOGO , TSUJIMOTO KENICHI , KANAI YUICHI , HAYASHI KENZO , KAWAMURA TOSHIO , KUBO YOSHIKAZU , TSUJITA SUSUMU
IPC分类号： B22D41/56 , B22D11/10
摘要： PURPOSE:To facilitate the attachment/detachment of a nozzle to/from a steel tapping hole of a molten metal vessel by arranging a swinging device on a truck, transporting mechanism composed of a multistep type extending arm on the swinging device so as to be freely swung, further, a delivery device at the tip part of the extending arm at the uppermost step of the transporting mechanism. CONSTITUTION:At the time of working, the nozzle 7 preheated in a preheating furnace 46 is held up to a prescribed height and received with the delivery device 14 of the transporting mechanism 13. The delivery device 14 of the transporting mechanism 13 receiving the nozzle 7 is shifted to the reverse side of the pre-heating furnace 46 by once shrinking the three-step type elevating arm 17, 18, 19 and also, rotating at 180 angle with the swing device 12. Then, a joint filler 45 is stuck onto the upper surface of a nozzle 7 by working a joint filler supplying and press-sticking device 15. Successively, the delivery device 14 of the transporting mechanism 13 is again extended, and after positioning a nozzle holding device 36 of the molten metal vessel 1, the nozzle 7 supported with an engaging groove of a delivery hand 28 is transfered to the nozzle holding device 36.

2. 发明专利

JPH04111948A CONNECTING REFRACTORY FOR CONTINUOUS CASTING 失效
公开(公告)号：JPH04111948A
公开(公告)日：1992-04-13
申请号：JP23301390
申请日：1990-09-03
申请人： TOSHIBA CERAMICS CO , SUMITOMO METAL IND
发明人： ANDO MASAHIRO , TERASAKI HISASHI , FUKAYA TAKAHIRO , TERUNUMA MASAAKI , TSUJITA SUSUMU , ABE TOSHIHARU , KODAMA HIROSHI , ICHIHASHI HIROYUKI
IPC分类号： B22D11/04 , B22D41/54
摘要： PURPOSE:To reduce erosion of a refractory, by forming gas penetrating restrained layer for restraining penetration of gas on surface layer in contact with outer air. CONSTITUTION:With the connecting refractory 1 for continuous casting, a mold for continuous casting and a tundish are connected. Then, at least on the surface layer part in contact with the outer air, in the refractory 1, coating layer 4 as the gas penetrating restraining layer for restraining the penetration of gas, is formed. The coating layer 4 is formed with e.g. borosilicate glass series glaze. By impregnating chromium oxide in pores on surface layer of the refractory, the gas penetrating restraining layer is formed. By this method, it can be restrained that glass phase is developed by oxidizing the nitride as a part of the composition.

3. 发明专利

JPH08290262A LOWER NOZZLE REMOVING DEVICE OF MOLTEN METAL STORING CONTAINER 失效
公开(公告)号：JPH08290262A
公开(公告)日：1996-11-05
申请号：JP11794395
申请日：1995-04-18
申请人： TOSHIBA CERAMICS CO , SUMITOMO METAL IND
发明人： IURA SHINICHIRO , MIZUTANI SHOGO , KOJIMA MAKOTO , KANAI YUICHI , TSUJIMOTO KENICHI , MIURA HIROYUKI , KAWAHIGASHI SATOSHI , TSUJITA SUSUMU , KUBO YOSHIKAZU
IPC分类号： B22D41/34 , B22D11/10 , B22D41/56
摘要： PURPOSE: To automate the removing work of a lower nozzle and to prevent the breakage of a holder of the lower nozzle by working a cylinder of a nozzle removing device to erect a waste pot, and directly storing a removed lower nozzle into the waste pot. CONSTITUTION: A lower nozzle 6 of a molten metal storing vessel fitted to the bottom of a flow rate control device 7 is loaded on a nozzle holding arm 9, and in this condition, the tip part of the nozzle holding arm 9 is lowered. Then, a cylinder 14 of a nozzle removing device 10 is worked to erect a waste pot 13. The waste pot 13 can be erected by contracting a piston rod of the cylinder 14 because a link 13b connected to the piston rod of the cylinder 14 is integrated with a connection rod 13a. When the waste pot 13 is erected, the lower nozzle 6 of the molten metal storing vessel to be held by the nozzle holding arm 9 of the flow rate control device 7 is stored inside from an opening part of the waste pot 13.

4. 发明专利

JPH04105752A BRAKE RING FOR HORIZONTAL CONTINUOUS CASTING 失效
公开(公告)号：JPH04105752A
公开(公告)日：1992-04-07
申请号：JP22289590
申请日：1990-08-23
申请人： SUMITOMO METAL IND , TOSHIBA CERAMICS CO
发明人： TERUNUMA MASAAKI , TSUJITA SUSUMU , ABE TOSHIHARU , KODAMA HIROSHI , ICHIHASHI HIROYUKI , FUKAYA TAKAHIRO , TERASAKI HISASHI , ANDO MASAHIRO , SUGIURA KENJI
IPC分类号： B22D11/04 , B22D11/10
摘要： PURPOSE:To restrain the production of nitride by forming surface layer of molten metal contact part in a brake ring for horizontal continuous casting composed of the nitride with oxide layer excluding the nitride. CONSTITUTION:The brake ring for jointing a tundish and a mold for horizontal continuous casting is constituted so as to be composed of mainly the nitride and the oxide layer excluding the nitride with oxidizing treatment at the surface layer part on the molten metal contact part. By this method, this brake ring has excellent high temp. strength, heat shock resistance, machinability, etc., but the production of nitride into the molten metal is remarkably restrained, and the surface defect of a cast billet and the segregation of the nitride can be drastically restrained.

5. 发明专利

JPS62224460A METHOD AND APPARATUS FOR EXCHANGING DUMMY BAR HEAD IN MULTIPLE CONTINUOUS CASTING EQUIPMENT 失效
公开(公告)号：JPS62224460A
公开(公告)日：1987-10-02
申请号：JP6748986
申请日：1986-03-26
申请人： SUMITOMO HEAVY INDUSTRIES , SUMITOMO METAL IND
发明人： TSUNE KIYOSHI , TOMONO HIROSHI , TSUJITA SUSUMU , YAMAGUCHI TAKASHI , MIYASHITA KEN
IPC分类号： B22D11/00 , B22D11/08
摘要： PURPOSE:To rapidly and efficiently exchange a dummy bar head automatically by supporting and shifting the dummy bar head detached by releasing an automatic lock and the other dummy bar head taken out from a storage device through a carriage. CONSTITUTION:The dummy bar 1, provided with the dummy bar head 3 by the automatic lock at the tip of the dummy bar shared body 2, is shifted to a dummy bar exchanging position on an inducing passage 19 arranged in parallel with the casting slab drawing direction from a withdrawing passage 20 by a winch 22. At this exchanging position bounded by a stopper 23, the automatic lock is released by working a dummy bar head detaching claw 30. Next, the dummy bar head 3 detached from the shared body 2 is shifted by the dummy bar head carriage, composing of a dummy bar head supporting frame 58 having a pushing claw 61 and a drawing claw 62, and these reciprocating driving device 60, fitted to the carrier 53, and is stored into the storage device, providing a sprocket 33 and a chain 37, etc. The dummy bar head to exchange, is taken out and shifted from the above-mentioned storage device by a shifting device and fitted to the tip of the shared body 2 by automatic lock.

6. 发明专利

JPS61235051A PREVENTION OF INTERNAL CRACK OF CONTINUOUSLY CAST ROUND INGOT 失效
公开(公告)号：JPS61235051A
公开(公告)日：1986-10-20
申请号：JP7817685
申请日：1985-04-11
申请人： SUMITOMO METAL IND
发明人： TSUJITA SUSUMU , TOMONO HIROSHI
IPC分类号： B22D11/124
摘要： PURPOSE:To prevent an internal crack by subjecting an ingot in a secondary cooling zone for continuous casting to the cooling satisfying the equation at the point of the time when the recuperation in the cooling thereof is completed. CONSTITUTION:The cooling to satisfy the equation: (TL-TS)/d

7. 发明专利

JPH05228580A CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPH05228580A
公开(公告)日：1993-09-07
申请号：JP6906592
申请日：1992-02-17
申请人： SUMITOMO METAL IND
发明人： KONDO OSAMU , HAMADA MASANARI , TSUJITA SUSUMU , YAMAYA HIKARI
IPC分类号： B22D11/04 , B22D11/10 , B22D11/115 , B22D11/16
摘要： PURPOSE:To improve the internal quality of a cast billet by giving electromagnetic force to the cast billet during continuous casting in the condition of remaining unsolidified molten steel. CONSTITUTION:On the way of horizontally drawing the cast billet C after the molten steel from a tundish 1 in the horizontal continuous casting equipment passes through a feed nozzle 2 and a mold 3, the molten steel temp. in the tundish 1, cooling water quantity of a spraying device 4, cooling water temp., atmospheric temp. and cast billet drawing speed are detected. Distribution of solidified shell in the drawing direction is obtd. with an arithmetic control device 8, and based on difference between the above result and the thickness of the cast billet, the distribution of diameter or thickness of the remained molten steel is calculated, and the position where the calculated distribution is coincident with the preset solid phase ratio and the diameter or the thickness of the remained molten steel, is obtd. and the electromagnetic stirring device 6 is shifted and positioned at this position to apply the electromagnetic stirring. By this method, the development of macro-porosity in the cast billet is restrained to improve the quality.

8. 发明专利

JPH0569091A HORIZONTAL CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPH0569091A
公开(公告)日：1993-03-23
申请号：JP23266091
申请日：1991-09-12
申请人： SUMITOMO METAL IND
发明人： YAMANAKA AKIHIRO , YOSHIHARA MASAHIRO , OTA KOZO , TSUJITA SUSUMU , TERUNUMA MASAAKI , KODAMA HIROSHI , ABE TOSHIHARU
IPC分类号： B22D11/04 , B22D11/10 , B22D11/115
摘要： PURPOSE:To reduce internal defect in a cast slab, to obtain the small piecing diameter at the time of manufacturing a pipe with hot-extrusion to enhance the material yield by setting plural rotating magnetic field type electromagnetic stirring devices in series and applying each electromagnetic stirring at the specific position at the time of executing the horizontal continuous casting. CONSTITUTION:At the time of producing the billet or a bloom with the horizontal continuous casting, at least tree steps of the rotating magnetic field type electromagnetic stirring devices are set in series. Then the first step of the electromagnetic stir is applied at the position corresponding to the solidified starting position in a mold. Successively, the second step of the electromagnetic stir is applied between the outlet of the mold and the position, where the solid- phase ratio at the center of the cast slab does not exceed zero. Further, the third step of the electromagnetic stir is applied from the position, where the solid-phase ratio at the center of the cast slab is in the range of >0.1 and

9. 发明专利

JPS61273246A CONTROL DEVICE FOR MOLTEN METAL LEVEL IN CASTING MOLD 失效
公开(公告)号：JPS61273246A
公开(公告)日：1986-12-03
申请号：JP11565785
申请日：1985-05-28
申请人： SUMITOMO METAL IND
发明人： NAKAMURA MASAMI , TSUJITA SUSUMU
IPC分类号： B22D11/18
摘要： PURPOSE:To make possible the stable drawing of ingots by providing plural molten metal level detectors to the different positions in the billet drawing direction of casting molds, determining the rising speed of the molten metal surface from the time difference when the molten metal surface passes the detectors and adjusting nozzle opening degrees. CONSTITUTION:A continuous casting installation is so constituted that the ingots 1, 21 formed from the molten steel 2 poured through the nozzles 4, 24 into the casting molds 6, 26 are drawn by a drawing device 40 common for the two strands. The sensors 9, 29 for detecting the molten metal surface at the fixed points provided in the drawing direction of the ingots in the molds 6, 26 detect the surface of the molten steel 2 and input the detected values to calculators 10, 30 for the rising speed of the molten metal surface. The calculated rising speed of the molten metal surface is inputted to a calculator 50 for the nozzle opening degree by which the opening degrees of opening degree adjusting parts 4a, 24a are calculated and the flow rates of the nozzles 4, 24 are adjusted. The stable ingot drawing with the drawing device common to the two strands is thus made possible.

10. 发明专利

JPS5916865B2 JPS5916865B2 - 失效
公开(公告)号：JPS5916865B2
公开(公告)日：1984-04-18
申请号：JP11509080
申请日：1980-08-20
申请人： Sumitomo Metal Ind
发明人： URAMOTO TARO , TOKUDA MASATOSHI , TSUJITA SUSUMU
IPC分类号： B22D11/16 , B22D11/04 , B22D11/055 , B22D11/22

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