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1. 发明专利

JPH01273654A NOZZLE FOR POURING MOLTEN METAL 失效
公开(公告)号：JPH01273654A
公开(公告)日：1989-11-01
申请号：JP10017788
申请日：1988-04-25
申请人： KAWASAKI STEEL CO , KAWASAKI REFRACTORIES CO LTD , HITACHI LTD
发明人： BESSHO NAGAYASU , FUJII TETSUYA , IMAIDA YASUO , ISOMURA KEIICHIRO , MORIWAKI SABURO , MITSUI HARUO , KIMURA TOMOAKI
IPC分类号： B22D11/06 , B22D11/10
摘要： PURPOSE:To pour uniform molten metal flow without developing any molten metal penetration, etc., between a pouring nozzle and belts by satisfying the relational inequalities on the pouring nozzle. CONSTITUTION:The nozzle is composed of an upper nozzle 7 and a lower nozzle and discharging hole of the upper nozzle is inserted into the upper part of the lower nozzle. Then, the nozzle is to satisfy the undermentioned relational inequalities. (x-y)/2>=5mm, 2mm =9,800mm>=P>=150mm, wherein, x: cast slab thickness (mm), y: thickness at end part of the lower nozzle containing refractory thickness (mm), z: slit gap to cast slab thickness direction at end part of the lower nozzle (mm), l: distance from end part of the lower nozzle to the position, which the whole thickness of the lower nozzle refractory becomes the equal with the cast slab thickness (x) (mm), P: distance from discharging hole of the upper nozzle 7 to the end part of the lower nozzle (mm). By this method, the uniform molten metal flow can be poured and the service lives of the nozzle and the belt are extended.

2. 发明专利

JPH02147151A SHORT SIDE PLATE IN STRIP CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPH02147151A
公开(公告)日：1990-06-06
申请号：JP29804688
申请日：1988-11-28
申请人： KAWASAKI STEEL CO , HITACHI LTD , KAWASAKI REFRACTORIES CO LTD
发明人： MORIWAKI SABURO , OSUGI HITOSHI , BESSHO NAGAYASU , ISOMURA KEIICHIRO , KIMURA TOMOAKI , HIGASHIHARA TAKESHI
IPC分类号： B22D11/06
摘要： PURPOSE:To increase continued length of life in continuous casting and to realize the stable casting by supporting refractory between both frame parts formed at both edge parts contacting with circulating body and constituting the refractory of assemble of a heat insulating refractory and a wear resistant refractory. CONSTITUTION:Molten metal is held with one pair of the facing arranged circulating bodies and one pair of short side plates positioned at both edge parts between of them to form strip continuous casting machine by constituting the casting space. In this short side plate, the refractory 10 is supported with both frame parts 9 formed at both end parts contacting with the circulating body. The refractory 10 is constituted with the assemble of the heat insulating refractory layer 10a and the wear resistant refractory layer 10b arranged on this.

3. 发明专利

JPH01162545A SHORT SIDE PLATE FOR STRIP CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPH01162545A
公开(公告)日：1989-06-27
申请号：JP32134787
申请日：1987-12-21
申请人： KAWASAKI STEEL CO , KAWASAKI REFRACTORIES CO LTD
发明人： MORIWAKI SABURO , KITANO YOSHIHISA , YAMADA HIROSUKE , ISOMURA KEIICHIRO , HIGASHIHARA TAKESHI
IPC分类号： B22D11/06
摘要： PURPOSE:To restrain wear of heat resistant refractory and to enable stable casting by inserting the wear resistant refractory having high hardness at high temp. more than that of a cast strip between frame edge parts formed at both side edges contacting with a circular body and heat insulating refractory supported interval of both frame edge parts. CONSTITUTION:The surface of the frame edge part 9 is sufficiently cooled with cooling water flowing in coolant passage 11 and molten steel is cooled in there, to develop the solidified shell. The heat resistant refractory 10 held in the frame edge part 9 is brought the surface into contact with the molten steel, but as it has low thermal conductivity, the solidification of the molten steel is not developed on the heat insulating refractory 10. The solidified shell developed at the frame edge part 9 grows and a part thereof expects to extend to the face of heat resistant refractory 10, but growth of the solidified shell is stopped on the surface of the wear resistant refractory 12 having high hardless at high temp. arranged at the boundary of the frame edge part 9 and heat resistant refractory 10. As the solidified shell is not directly brought into contact with the heat resistant refractory 10, the heat resistant refractory 10 is scarcely worn with the solidified shell.

4. 发明专利

JPH08309492A CONTINUOUS CASTING MACHINE FOR SHEET 失效
公开(公告)号：JPH08309492A
公开(公告)日：1996-11-26
申请号：JP14254196
申请日：1996-06-05
申请人： HITACHI LTD , KAWASAKI STEEL CO
发明人： NISHINO TADASHI , KAJIWARA TOSHIYUKI , KIMURA TOMOAKI , MORIWAKI SABURO
IPC分类号： B22D11/04 , B22D11/053 , B22D11/055 , B22D11/06
摘要： PURPOSE: To carry out the stable continuous casting of the sheet by easily drawing the sheet without solidifying the molten steel on the shorter side. CONSTITUTION: In a continuous casting machine of the sheet provided with a vibrating mold which consists of a longer mold and a shorter mold and is vibrated in the slab drawing direction, the vibrating mold is provided with a shorter mold 4 whose upper part is expanded and whose lower part is reduced, and which is made of the refractory of low heat conductivity. The sheet can be easily drawn without solidifying the molten steel 16 on the shorter side to enable the stable continuous casting of the sheet.

5. 发明专利

JPH03114631A METHOD FOR ASSEMBLING SHORT SIDE PLATE USED TO MOLD FOR CONTINUOUSLY CASTING CAST STRIP 失效
公开(公告)号：JPH03114631A
公开(公告)日：1991-05-15
申请号：JP25063389
申请日：1989-09-28
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： OSUGI HITOSHI , MORIWAKI SABURO , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To assemble short side plates without penetrating molten metal into joint part during casting in a short time by assembling a refractory into a recessed part in a casing-like metal frame of the short side plate squeezing the intermediate part into the shape of top-widening and bottom-narrowing and causing the molten metal to flow into gap between the metal frame and the refractory to form the joint part. CONSTITUTION:A mold for cast strip continuous casting, is constituted of long wall faces with circulating bodies composed of one pair of metal belts 1, 2 and short wall faces with one pair of the short wall side plates 4, 5. The short side plate 4, 5 is constituted of the metal frame 8 and refractory 9, and the metal frame 8 is formed to the shape squeezing the intermediate part, top-widening and bottom-narrowing, and the recessed part 11 is formed to the part remaining the side edge casing part 10 in the range from the widening upper end to the squeezing part at the intermediate part. In this recessed part 11, the refractory 9 is set so as to be apart from the casing part 10 with gap 12 (about 2-4mm) and in the gap 12, the molten metal 13 is poured and solidified to form the joint part 14. By this method, the short side plates 4, 5 without penetrating the molten metal into the joint part during casting, can be assembled in a short time.

6. 发明专利

JPH0342154A LONG SIDE CIRCULAR SHIFTING TYPE CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPH0342154A
公开(公告)日：1991-02-22
申请号：JP17567589
申请日：1989-07-10
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： OSUGI HITOSHI , MORIWAKI SABURO , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To thicken solidified shells developed at both end parts of long side and to stable obtain a high temp. cast strip by making film thickness of heat insulation coating agent at both end parts of the long side adjacent to short sides thinner than that of center part of the long side. CONSTITUTION:Coating agent spraying devices 6, 7 are arranged at both end parts of the long side and the center part, respectively to execute the coating so that the heat insulation coating agent 13 at both end parts of belt 4 adjacent to the short sides 5 is thinned compared with the center part in width direction of the belt 4. Further, in the range in contact with the sort side, lubrication coating agent 14 is applied with spraying devices 8. By this method, the solidi fied shells 15 in the long side at both end parts of the belt 4 are thickened and the strength against drawning-in of the solidified shell 16 in the short side is raised to prevent breakout.

7. 发明专利

JPH02165847A CONTINUOUS CASTING APPARATUS 失效
公开(公告)号：JPH02165847A
公开(公告)日：1990-06-26
申请号：JP31829688
申请日：1988-12-16
申请人： HITACHI LTD , KAWASAKI STEEL CO
发明人： INOUE TOMOAKI , CHIBA YOSHIAKI , NAKAMURA SHOZO , MATSUSHIMA TOKUNORI , KIMURA TOMOAKI , MORIWAKI SABURO
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent the development of breakout, etc., caused by solidified shell developing on a short side member by setting exciting device between refractory and cooling member surrounding the refractory being the tapered short side members downward constituting both end sides of a mold. CONSTITUTION:Into the mold constituted of one pair of the cooling belts 4 and the tapered downward short side members 5 at both ends, the molten steel 2 is supplied from a tundish 1 through a nozzle 3, cooled and solidified with the cooling pads 6 supporting and cooling the cooling belts 4 to obtain the cast slab. In the above continuous casting apparatus, the short side member 5 is constituted of the refractory 9 having tapered shape downward and excellent heat insulation and cooling member 10 surrounding the refractory 9 except at least inner face of the mold. Further, the exciting device 11 of actuator, etc., composed of piezoelectric element is arranged at between the above refractory 9 and cooling member 10. By this method, the solidified shell developed on the short side member 5 is separated from the solidified shell on the cooling belt 4 and the developments of the breakout and double skin caused by crack of the solidified shell are prevented.

8. 发明专利

JPH0275450A SIDE PLATE AT SHORT SIDE IN THIN INGOT CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPH0275450A
公开(公告)日：1990-03-15
申请号：JP22480188
申请日：1988-09-09
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： MORIWAKI SABURO , OSUGI HITOSHI , ONISHI MASAYUKI , KOSHIKAWA TAKAO , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To make sure of the development of solidified shell behind completing point of squeezing and to prevent penetration of molten steel into joint part by making a material having high heat conductivity in the range below the completing point of the squeezing of a refractory in side plate at the short side. CONSTITUTION:The refractory 10 in the side plate at the short side is constituted by assembling the refractory layer 10a arranged as extending to below the completing point P of the squeezing on the surface contacting with the molten metal and having high heat conductivity and excellent corrosion resistance, spalling resistance and wear resistance and the refractory layer 10b arranged on back face of the upper range of the completing point P of the squeezing in this refractory layer 10a. Further, the refractory layer having high heat conductivity is arranged at the front face and the refractory having excellent heat insulating property is arranged at the necessary part to heat insulation with a copper plate, that is, at back face of the upper part from the completing point P of the squeezing.

9. 发明专利

JPH01313155A SYNCHRONOUS TYPE CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPH01313155A
公开(公告)日：1989-12-18
申请号：JP14373188
申请日：1988-06-13
申请人： HITACHI LTD , KAWASAKI STEEL CO
发明人： KIMURA TOMOAKI , MORIWAKI SABURO , OSUGI HITOSHI , TAMURA NOZOMI , TOZAWA KOICHI
IPC分类号： B22D11/06 , B22D11/20 , B22D11/22
摘要： PURPOSE:To always produce a high temp. cast slab regardless of casting velocity, etc., by adjusting coating rate of parting agent with parting agent coating means based on measurement with temp. measuring means. CONSTITUTION:The parting agent supplied under adjusting the flow rate with valves 14, 22 is sent to nozzles 12, 21 through hoses 13, 53 to inject to belts 7, 29 as spraying-state 11. The parting agent coated in such a way, is injected gaps of guide plates 8 arranged as holding the gaps to the belts 7, 29 and dried with hot blast supplied from pipes 10 through headers 9. Then, the parting agent coating means, that is, the parting agent coating rates through the nozzles 12, 21 are adjusted based on measured temp. with temp. measuring instruments 17, 20 and the casting is executed so as to come to the prescribed temp. By this method, the temp. of the fast slab canb e always held to high temp. regardless of the casting velocity and hot rolling can be stably executed without any reheating the cast slab, after continuously casting the cast slab.

10. 发明专利

JPH01273655A METHOD FOR CONTINUOUSLY CASTING STRIP AND CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPH01273655A
公开(公告)日：1989-11-01
申请号：JP10131788
申请日：1988-04-26
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： MORIWAKI SABURO , YAMADA HIROSUKE , KAMIYA MICHINORI , TOZAWA KOICHI , KIMURA TOMOAKI
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent restriction of solidified shell and burning by specifying amplitude and the max. acceleration at the time of retreating in the vibration advancing/retreating short side plate to width direction of a cast slab. CONSTITUTION:At the time of continuously casting a strip, by a vibrating wave form setter, the vibrating wave form is set to 0.05-1.5mm amplitude and 8-49m/s in the range of the acceleration at the time of retreating when the short side plate is apart from the solidified shell. Then, the vibration is given to an exciter based on this and at the same time, the detected results with an accelerometer 16 is compared with the setting vibrating wave form by a vibrating wave form comparing controller, to execute feedback control, and always the short side plate is vibrated under the setting vibrating wave form. By this method, the burning of the short side plate with the cast strip is prevented and operational trouble of breakout, etc., is eliminated and the cast strip having good surface characteristic can be obtd.

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