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1. 发明专利

JPH11320063A METHOD FOR CONTINUOUSLY CASTING THIN CAST SLAB 失效
公开(公告)号：JPH11320063A
公开(公告)日：1999-11-24
申请号：JP12588998
申请日：1998-05-08
申请人： SUMITOMO METAL IND , SUMITOMO HEAVY INDUSTRIES
发明人： KUMAKURA SEIJI , MURAKAMI TOSHIHIKO , IKEDA MASAHIRO , HASHIO MORINORI
IPC分类号： B22D11/128 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method of a thin cast slab with an unsolidified rolling reduction method, in which the rolling reduction causing the trouble on the operation is avoided and the length in the unsteady part is shortened as little as possible. SOLUTION: The unsolidified rolling reduction continuous casting method for producing the thin cast slab, is executed by drawing out the cast slab 2 which is formed in a mold 1 in a vertical and bending type continuous caster and of which the inside is in the unsolidified state, and applying the rolling reduction while supporting with guide rolls. The cast slab 2 is vertically supported just below the mold 1 with two to five sets of support rolls 4 so as to become parallel with the inner surface of the mold 1 without applying the rolling reduction and the unsolidified rolling reduction is applied with rolls 4 following the support rolls. In the way, the cast slab can smoothly be drawn out and the strain caused by the bending of the cast slab can be made small. Therefore, it can be eliminated that in such a case of applying the rolling reduction just below the mold, the contact between the cast slab and the mold is worsened and the operational troubles such as longitudinal crack, breakout, are caused.

2. 发明专利

JPH1128550A MOLD FOR CONTINUOUS CASTING AND METHOD FOR CHANGING WIDTH AT THE TIME OF CONTINUOUS CASTING 失效
公开(公告)号：JPH1128550A
公开(公告)日：1999-02-02
申请号：JP18253397
申请日：1997-07-08
申请人： SUMITOMO METAL IND , SUMITOMO HEAVY INDUSTRIES
发明人： KAWAMOTO MASAYUKI , MURAKAMI TOSHIHIKO , TANIZAWA YOSHINORI , HANAO MASASHI , KUMAKURA SEIJI , IKEDA MASAHIRO
IPC分类号： B22D11/04 , B22D11/05
摘要： PROBLEM TO BE SOLVED: To always bring a mold into contact with a cast slab near the corner part of the mold, even in the case of continuously casting the slab at high velocity. SOLUTION: The mold for continuous casting has a structure having a rectangular cross section shape and interposing the cooling surfaces 12a of short side 12 with the cooling surfaces of long side. The cooling surfaces of the long side are formed with the flat surfaces without curving and bending parts in the whole range from the inlet to the outlet. On the other hand, the cooling surfaces 12a of the short side 12 arranges the curving 12b and bending parts at the inlet 12aa so that the thickness t1 at the center part in the width direction in the inlet 12aa is smaller than the thickness t2 at the long side. Further, this curving 12b and bending parts are gradually changed so that the thickness at the outlet 12ab is a little larger than the thickness t2 of the long side at the inlet 12aa and becomes the flat surface without curving and bending parts.

3. 发明专利

JPH03210953A METHOD FOR CONTINUOUS CASTING AND MOLD FOR CONTINUOUS CASTING EQUIPMENT 失效
公开(公告)号：JPH03210953A
公开(公告)日：1991-09-13
申请号：JP386290
申请日：1990-01-11
申请人： SUMITOMO HEAVY INDUSTRIES , SUMITOMO METAL IND
发明人： MURAKAMI TOSHIHIKO , NAKAI TAKESHI , YAMADA TSUNEO , ABE KAZUO
IPC分类号： B22D11/04 , B22D11/05 , B22D11/16
摘要： PURPOSE:To uniformly execute cooling to a cast slab even in the case casting velocity varies by changing taper rate in one pair of the faced mold copper plates held between one pair of the faced set other mold copper plates at multiple steps in casting direction according to the casting velocity during casting. CONSTITUTION:The mold is assembled by holding one pair of the faced set short side copper plates 2 between one pair of the faced set long side copper plates 1, and at rear of short side frame 4 in the short side copper plate 2, U shaped notched groove 15 is arranged at center part in the casting direction, and at upper and lower parts of this groove 15, a screw type guide shaft 10 is arranged. In this constitution, the taper of short side copper plate 2 is made to the prescribed value and casting is started, and when the casting velocity comes to slow, the guide shaft 10 is worked with a driving device 16 through universal joint 17 and the copper plate 2 is bent with the groove 15 as supporting point and the inclination at the upper side part is made to large and inclination at the lower side is made to small. Further, when the casting velocity comes to fast, the bending degree is made to a little and the whole inclination is made to small to execute the casting, and control of the driving device 16 is executed with a controller 19 according to signal of thermocouple 18 imbedded at lower side part of the copper plate 2.

4. 发明专利

JP2000280053A CONTINUOUS CASTING OF THIN CASTING PIECE 失效
公开(公告)号：JP2000280053A
公开(公告)日：2000-10-10
申请号：JP8880099
申请日：1999-03-30
申请人： SUMITOMO METAL IND , SUMITOMO HEAVY INDUSTRIES
发明人： KIKUCHI SUKEHISA , HANAO MASAFUMI , MURAKAMI TOSHIHIKO , OKA MASAHIKO , IKEDA MASAHIRO
IPC分类号： B22D11/124 , B22D11/128 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To prevent a surface crack of a casting piece in a pressurized zone for prolonging a roll life by always maintaining a surface temperature of the casting piece in a pressurized zone at almost even with alternating comparative water volume in the pressurized zone according to a width ratio of a pressurized slab. SOLUTION: A pressurizing zone is provided at a curvature part of a continuous casting machine. In a case that a comparative water volume of a pressurizing zone before pressurization is set as Q0 (l/min), a comparative water volume at a pressurizing time and after the pressurization is completed as Q (l/min), a casting piece width before the pressurization as y0 (mm) and, a casting piece width at the time of pressurization as y, cooling water volume is adjusted in a range Q=a× (y/y0)×Q0, α=0.6-1.0 from the start of pressurization. Thus, cooling of the pressurized casting piece can be performed without a need of large cooling water, and also surface crack of the casting piece can be reduced to substantially 0. Since cooling water volume can be thus lessened, a casting piece temperature is secured normally at 900 deg.C or above and a deformation resistance of the casting piece is reduced, resulting in a prolongation of the roll life.

5. 发明专利

JP2000233262A FLAT NOZZLE FOR CASTING THIN SLAB 失效
公开(公告)号：JP2000233262A
公开(公告)日：2000-08-29
申请号：JP3175899
申请日：1999-02-09
申请人： TOSHIBA CERAMICS CO , SUMITOMO METAL IND , SUMITOMO HEAVY INDUSTRIES
发明人： MOCHIZUKI YOICHIRO , HASEBE NOBUHIRO , OYA SATOSHI , MURAKAMI TOSHIHIKO , OKA MASAHIKO , MIZUNO MUNEHITO
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide a flat nozzle for casting a thin slab, with which the stable casting can be executed without bringing about the deterioration of a product quality and which can be used for a long time. SOLUTION: A spouting hole 5 is formed from the short side wall 6 to the bottom surface part 7 of a nozzle body 2 and the one end part 9 of the short side wall 6 forming one outer peripheral part of the spouting hole 5, is formed as a tapered gradient and in the case of using α for the angle, in which the gradient is formed to the horizontal plane, it is regulated to be 0 deg.

6. 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.

7. 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.

8. 发明专利

JPH0631415A EQUIPMENT FOR SUPPORTING AND COOLING CAST SLAB IN CONTINUOUS CASTING FACILITY 失效
公开(公告)号：JPH0631415A
公开(公告)日：1994-02-08
申请号：JP20979592
申请日：1992-07-14
申请人： SUMITOMO HEAVY INDUSTRIES , SUMITOMO METAL IND
发明人： ITO HIDEHIKO , ASARI TAKASHI , NAKAJIMA TAKAHARU , MURAKAMI TOSHIHIKO
IPC分类号： B22D11/124 , B22D11/128
摘要： PURPOSE:To provide an equipment for supporting and cooling a cast slab, in which the support of the cast slab is secured and high cooling capacity is obtd. and the sticking of scale and rotation failure of guide rolls are eliminated. CONSTITUTION:The equipment consists of plural guide rolls 2-5 arranged so as to abut on the surface of the cast slab, and a wall members 27 arranged at trapezoidal gap formed between the two adjacent guide rolls and the surface of the cast slab. The wall member 27 is provided with a tip surface 28 facing the surface of the cast slab with a gap and slit shape nozzles 32, 33 opened facing the tip surface. The wall member 27 is connected with a jacket demarcated over the interval from the back surface of each guide roll 3-5 to the adjacent guide rolls. A supplying part for supplying the cooling water toward the rear part of the guide roll 3-5 is arranged in the jacket and the slit type nozzle is communicated with a demarcated chamber 26.

9. 发明专利

JPS62259643A SUPPORTING APPARATUS FOR CASTING SHEET SHORT SIDE OF TWIN BELT CASTER 失效
公开(公告)号：JPS62259643A
公开(公告)日：1987-11-12
申请号：JP10271986
申请日：1986-05-02
申请人： SUMITOMO HEAVY INDUSTRIES , SUMITOMO METAL IND
发明人： TSUJITA KOZABURO , OKAZAKI TAKU , KOIDE MASAKAZU , MURAKAMI TOSHIHIKO
IPC分类号： B22D11/06
摘要： PURPOSE:To uniformly bring a dam block into contact with a short side of casting sheet and to surely cool the casting sheet by fixing the dam block to a side guide in the non-solidifying zone of molten metal in a caster and supporting elastically the dam block to the side guide through a guide plate in the solidifying zone. CONSTITUTION:The molten metal is poured into a space composing of the upper and lower belts 1, 2 and the right and left side dam blocks 6, from a trough 22. Then, in the non-solidifying zone in the molten metal, the dam block 6 is pushed to the side guide 5 side and abutted on a roller 12 of roller chain 9 supported as fixing to the side guide 5 and as it is shifted without reduction, soft solidified shell is not broken down. In the solidifying zone in the molten metal, the dam block 6 is supported elastically to the side guide 5 by a compressive spring 17 through the side plate 7, and pushed to inside of the casting sheet width direction in accordance with the shrinkage of the casting sheet width direction, and also guided as sliding to the side plate 7 to reduce, and so no gap between the dam block 6 and the casting sheet is developed. Further, as the max. reduction rate is adjusted by an adjusting bolt 14 and a worm jack 19, the casting sheet having constant width is produced. In drawing.

10. 发明专利

JPS62192233A CONTINUOUS CASTING APPARATUS FOR THIN PLATE 失效
公开(公告)号：JPS62192233A
公开(公告)日：1987-08-22
申请号：JP3166086
申请日：1986-02-15
申请人： SUMITOMO HEAVY INDUSTRIES , SUMITOMO METAL IND
发明人： TSUJITA KOZABURO , OKAZAKI TAKU , YOSHIHARA MASAHIRO , MURAKAMI TOSHIHIKO
IPC分类号： B22D11/06
摘要： PURPOSE:To stably produce a thin plate in continuous casting by arranging one pair of molten metal supplying means, supplied from side-parts at the top surfaces of one pair of endless belts and also arranging cooling plates abutted on the both sides of the casting thin plate at the lower part of a mold. CONSTITUTION:One pair of the endless belts 45, 46 are hung to two pairs of drums 41-44 respectively, and also a lest spout 47 and right spout 48, which supply the molten metal from the side-parts, are arranged at near the top part of the belts. Further, one pair of the cooling plates 51 abutted on the both side of the casting thin plate descended from a gap between the side of the casting thin plate descended from a gap between the side plates 49 are arranged under pushing by coil springs. The molten metal is supplied from the spouts 47, 48 at near the top parts of the belts 45, 46, to execute continuous casting as cooling at the gap between the both belts. As the molten metal is cooled efficiently by the cooling plates 51 and also enables the operation under low static pressure thereof, the continuous casting for the thin plate having

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