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1. 发明专利

JPH10180424A STRUCTURE FOR FIXING CASTING NOZZLE FOR CONTINUOUS CASTING 失效
公开(公告)号：JPH10180424A
公开(公告)日：1998-07-07
申请号：JP34698596
申请日：1996-12-26
申请人： SUMITOMO METAL IND , TOSHIBA CERAMICS CO
发明人： WAKUI TAKEO , FUSHIMI TETSUO , UEDA TAKATOSHI
IPC分类号： B22D11/06 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide a structure for fixing a nozzle without being affected by the thermal strain of a tundish at the time of fixing the nozzle to the tundish in a single roll or a twin roll horizontal pouring type continuous casting. SOLUTION: This structure is the fixing structure of the casting nozzle 11 to the tundish 12 in the single roll or the twin roll horizontal pouring type continuous caster for obtaining a thin cast slab by rapidly cooling and solidifying molten metal 5 with the rotating rolls 1, 2. A straight line-shaped recessed part 11c parallel to the casting direction is formed on the lower surface of the casting nozzle 11, and a straight line-shaped projecting part 12g slidably fitted to the recessed part 11c is formed at the part opposed to the recessed part 11c of the nozzle setting part 12d in the tundish 12.

2. 发明专利

JPH0445391A INNER LINER STRUCTURE 失效
公开(公告)号：JPH0445391A
公开(公告)日：1992-02-14
申请号：JP15240990
申请日：1990-06-11
申请人： TOSHIBA CERAMICS CO
发明人： UEDA TAKATOSHI , YASUDA YOSHIHIRO , ARAKAWA YUTAKA
IPC分类号： F27D1/00 , F27D1/04
摘要： PURPOSE:To prevent annularly piled-up bricks from dropping by a method wherein a fixing anchor having a barrel part and deformable vanes is inserted into and struck into a hole formed between a pair of position setting bricks and some refractory materials are filled. CONSTITUTION:A fixing anchor 4 is comprised of a cylindrical barrel part 5 and deformable vanes 6 expanded toward an outer circumference from the barrel part 5 As this fixing anchor 4 is driven into a through-pass hole formed between a pair of position setting bricks 3a and 3b, its outer circumferential vanes 6 are expanded, so that the annular set bricks are set or fastened at their outer circumferences. Accordingly, even if a remained thickness of the brick is decreased, a joint between the bricks is not loosened under a rotation of a kiln and thus it is possible to prevent the bricks from being dropped. Some castable refractories 7 are filled in the through-pass hole in order to prevent any corrosion of the fixing anchor 4.

3. 发明专利

JPH04259319A LOWER NOZZLE FOR STEELMAKING 失效
公开(公告)号：JPH04259319A
公开(公告)日：1992-09-14
申请号：JP2121391
申请日：1991-02-14
申请人： TOSHIBA CERAMICS CO , YUKAWA OUKAN SEISAKUSHIYO YUUG
发明人： UEDA TAKATOSHI , ARAKAWA YUTAKA , YUGAWA EIICHIRO
IPC分类号： C21C5/46 , C21C7/072
摘要： PURPOSE:To obtain a lower nozzle for steelmaking, in which positional shifting of an iron shell can be prevented even in the case mortar expands at the time of drying without using jig, such as band, weight, as conventional method. CONSTITUTION:In the lower nozzle for steelmaking, used under integrating the iron shell with the lower nozzle body through the mortar in order to prevent crack and drop in the steelmaking process, the fitting parts for preventing the shifting of iron shell are arranged at the optional positions on the lower nozzle body engaging with the above iron shell.

4. 发明专利

JPH01258863A STOPPER FOR CASTING 失效
公开(公告)号：JPH01258863A
公开(公告)日：1989-10-16
申请号：JP8665088
申请日：1988-04-08
申请人： TOSHIBA CERAMICS CO , NISSHIN STEEL CO LTD
发明人： KAWAMURA TOSHIO , TAKAHASHI SHOICHI , UEDA TAKATOSHI , SHIBATA SHOJI , SHIGEMATSU NAOKI , KOYAGO KANTA
IPC分类号： B22D41/18
摘要： PURPOSE:To prevent the exfoliation of an oxidation preventive agent and the adhesion to a nozzle and to extend the service life of the stopper by coating the entire outside surface of the stopper body consisting of refractories with the oxidation preventive agent and coating at least the nozzle contact part of the outside surface thereof with an adhesion preventive layer and a moisture absorption preventive agent. CONSTITUTION:The entire outside surface of the body of the stopper 2 consisting of the refractories contg. graphite or carbon or impregnated with tar, pitch or resin is coated with the oxidation preventive layer 3 essentially consisting of a SiO2-Al2O3 type material. At least the part of the outside surface of this oxidation preventive layer 3 where the layer comes into contact with the nozzle is then coated with the adhesion preventive layer 4 consisting of an Al2O3 type material and the entire outside surface of the adhesion preventive layer 4 is coated with the moisture absorption preventive layer 5. The oxidation of the stopper body 2 is, therefore, prevented by the oxidation preventive layer 3 and the damping of the oxidation preventive layer 3 is prevented by the moisture absorption preventive layer 5 on the outermost layer. Further, the moisture absorption preventive layer 5 melts and the adhesion to the nozzle is prevented by the adhesion preventive layer 4 at the time of use.

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