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11. 发明专利

JPH08215815A COMPRESSIVE ROLL DEVICE FOR CAST SLAB IN CONTINUOUS CASTER FOR THIN SLAB 失效
公开(公告)号：JPH08215815A
公开(公告)日：1996-08-27
申请号：JP4348995
申请日：1995-02-08
申请人： SUMITOMO METAL IND , SUMITOMO HEAVY INDUSTRIES
发明人： KOIDE MASAKAZU , KANAZAWA TAKASHI , MURAKAMI TOSHIHIKO , KAWAKAMI TAKASHI , TSUJITA KOZABURO , IKEDA MASAHIRO
IPC分类号： B22D11/00 , B21B13/22 , B21B27/02 , B22D11/04 , B22D11/12 , B22D11/128 , B22D11/20
摘要： PURPOSE: To provide a compressive roll device for a cast slab in a continuous caster for thin slab, in which the bulging, etc., is not developed during casting without developing fault and wave on the surface of the cast slab. CONSTITUTION: Each of the compressive rolls in the compressive roll device for cast slab, arranged just below a mold for thin slab is divided into three rolls at least a left roll 1, center roll 2 and a right roll 3. Three rolls are all the same outer diameter straight roll, and the center roll 2 is eccentrically supported to the left and the right rolls 1, 3 and the roll interval of the center roll 2 is made larger than the roll interval of the left and the right rolls 1, 3, and the eccentric quantities are large in the compressive roll near the mold and made smaller toward the compressive rolls far from the mold. By this constitution, the center bulging part of the cast slab is pressed in order. Then, since the circulating speed of each of the rolls 1, 2, 3 is not different, the surface of the cast slab is not damaged.

12. 发明专利

JPH08215802A DUMMY BAR OF CONTINUOUS CASTER FOR THIN SLAB 失效
公开(公告)号：JPH08215802A
公开(公告)日：1996-08-27
申请号：JP4349095
申请日：1995-02-08
申请人： SUMITOMO METAL IND , SUMITOMO HEAVY INDUSTRIES
发明人： HIRASHIRO TADASHI , MURAKAMI TOSHIHIKO , KOIDE MASAKAZU , KAWAKAMI TAKASHI , TSUJITA KOZABURO , IKEDA MASAHIRO
IPC分类号： B22D11/00 , B22D11/04 , B22D11/08
摘要： PURPOSE: To provide a dummy bar of a continuous caster for thin slab, in which necessity for adjusting the interval of rollers in a roller apron is eliminated and the construction is simplified. CONSTITUTION: In the continuous caster using a mold M for thin slab, having the cross sectional surface, in which the width is wide at the center part and is gradually narrowed toward both end parts and the thickness become almost equal to that of a cast slab as a product at both end parts, the dummy bar DB used for the mold M is provided with a holding metal tool 8 fitted to a dummy bar head 5 and a compressible refractory 16 held by the holding metal tool 8. The holding metal tool 8 is composed of many connected thin plate-like fins, opposited through-like receiving metal tool, recessed part formed in the dummy bar head 5 and a base seat ascended/descended in the inner part. When the tip part of the cast slab passes through between the guide rolls, since the compressible refractory 16 is collapsed, the roll interval adjusting device is unnecessary to set to the guide rolls, etc., below the mold.

13. 发明专利

JPH02284745A TUNDISH REFINING METHOD IN CONTINUOUS CASTING DEVICE 失效
公开(公告)号：JPH02284745A
公开(公告)日：1990-11-22
申请号：JP10556789
申请日：1989-04-24
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： TSUJITA KOZABURO , ABE KAZUO , KAWAKAMI TAKASHI
IPC分类号： B22D11/00 , B22D11/14 , C21C7/00
摘要： PURPOSE:To obtain a steel material having high cleanness from the top part of a cast slab by shifting a tundish to casting zone after refining molten steel poured into the tundish from a ladle in tundish refining zone and casting it. CONSTITUTION:When the pouring of the molten steel into No.1 tundish 2 is completed, the tundish 2 is shifted from the casting zone A to the refining zone B. Then, No.2 tundish 3 stayed in waiting zone C, is shifted to the casting zone A, and by closing a submerged nozzle, the molten steel from the ladle 1 is received. When the prescribed quantity of the molten steel is stored into No.2 tundish 3, the submerged nozzle is opened and the molten steel is poured into each mold 7, 7... to start the casting. During this, the secondary refining is executed to the molten steel in the No.1 tundish 2 in the refining zone B. The secondary refining improves the cleanness of the molten steel in the tundish and also executes the refining of different kind of the alloy. After that, when the pouring of the molten steel in the No.2 tundish 3 is completed and the casting is finished, the No.2 tundish 3 is shifted to the waiting zone C, and the No.1 tundish 2 is returned back to the casting zone A and the refined molten steel is poured.

14. 发明专利

JPH04210849A METHOD FOR CONTINUOUSLY CASTING BEAM BLANK 失效
公开(公告)号：JPH04210849A
公开(公告)日：1992-07-31
申请号：JP40158990
申请日：1990-12-12
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： TSUJITA KOZABURO , KAWAKAMI TAKASHI , ONO TOMOYOSHI
IPC分类号： B22D11/00
摘要： PURPOSE:To surely manufacture a beam blank having long web part by holding ratio of cooling velocities in flange forming parts and a web forming part in a mold to the specific value. CONSTITUTION:At the time of continuously casting the beam blank M with a mold 1, outlet side temp. T1, inlet side temp. T2 in cooling water, measured molten steel temp. t1 in a tundish and casting velocity V1 are inputted into a computing element 9. Mold cooling water flow rate Q is calculated according to the preset calculating equation from these measured values, and control signal is outputted to a regulating part of flow rate control valve 10. The cooling velocity at the web part 13 in the beam blank M is held so as to become 1/5-4/5 of the cooling velocity at the flange part 12 and the last solidified positions in the shell. inner parts at the flange parts and also the web part are made to become almost uniform near at outlet of the mold 1.

15. 发明专利

JPH02205237A METHOD FOR TAKING OUT REMAINING METAL IN TUNDISH AND TUNDISH THEREOF 失效
公开(公告)号：JPH02205237A
公开(公告)日：1990-08-15
申请号：JP2076689
申请日：1989-02-01
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： KAWAKAMI TAKASHI , ABE KAZUO , TSUJITA KOZABURO
IPC分类号： B22D11/10 , B22D41/01
摘要： PURPOSE:To immediately execute hot repairing of a tundish by spouting gas to remaining molten metal at the time of completing casting, cutting off the molten metal into the tundish side and an induction heater side and carrying out solidified metal. CONSTITUTION:A little quantity of molten metal 2 is made to remain in the tundish 1 at the time of completing the casting. In this molten metal 2, a metal tool for hanging up (anchor) 3 is dipped. To the molten metal at near fitting of the induction heater set to the tundish 1, the gas is spouted from side wall of the tundish 1 to cut off the molten metal into the tundish 1 side and the induction heater side. After that, the solidified metal 2 is carried out with the metal tool 3 for hanging up before the metal of tundish 1 side is cooled down. By this method, energy for preheating the tundish in order to reuse, can be reduced.

16. 发明专利

JPS63199051A CONTINUOUS CASTING EQUIPMENT 失效
公开(公告)号：JPS63199051A
公开(公告)日：1988-08-17
申请号：JP3038587
申请日：1987-02-12
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： AIDA KAORU , KAWAKAMI TAKASHI
IPC分类号： B22D11/00 , B22D11/04 , B22D11/128
摘要： PURPOSE:To easily change over one set of mold and top zone for single or plural continuous casting strands by connecting a mold divider and a top zone divider with a supporting frame, inserting into the top zone and hanging them to the mold long side wall by the supporting frame. CONSTITUTION:The mold divider 2 and the top zone divider 3 are hung by the supporting frame 1 connecting by connecting bolts 4 and inserted into the mold 5 and the top zone upper part 11 and fixed after positioning toward the mold long side direction under fixing by hanging parts 6, 7 at end part of the supporting frame 1 and fixed pins 21 of the top zone lower part 14. Under this condition, by cast billet part in grids 15, the cast billet is guided and twin casting can be executed. In case of changing over to the single casting, the fixing between the supporting frame 1 and the mold 5 is released and after taking out the fixed pins 21 from the end side of the top zone divider 3, the supporting frame 1 is hung up, the dividers 2, 3 are removed from the mold 5 and the top zone upper part 11.

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