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41. 发明专利

JPS5680356A CONTINUOUS CASTING MOLD FOR IRON AND STEEL 失效
公开(公告)号：JPS5680356A
公开(公告)日：1981-07-01
申请号：JP15609479
申请日：1979-11-30
申请人： KOBE STEEL LTD , SATOSEN CO LTD
发明人： SOEJIMA TOSHIYUKI , KOMINAMI TAKANORI , OOKUBO TADASHI , SATOU TAKAYUKI
IPC分类号： C23C4/10 , B22D11/04 , B22D11/059 , C23C28/02 , C25D7/00 , C25D7/04
摘要： PURPOSE:To provide a continuous casting mold for iron and steel which consists of further applying the spray-coated film of inorg. materials for spray coating contg. metal carbides on required parts onto the inside surface of a mold base body having been applied with an alloy plating layer of Ni and/or Co, and P and/or B and which has the protection film of high adhesiveness, heat resistance and abrasion resistance. CONSTITUTION:An alloy plating layer of usually 20-500mum, particularly 50- 100mum consisting in containing about 6-15wt% P and/or 1-8wt% B in Ni and/or Co is applied on the inside surface of the above-described mold base body. Next, a spray-coating film of inorg. materials for spray coating contg. metal carbides (e.g.; B4C, Cr3C2) is applied on said alloy plating layer of at least the corner parts and the lower end part of the inside surface of the mold to usually about 20-500mum, and particularly 50-200mum thicknesses. As a result, the local abrasion caused in the corner parts and lower end part of the inside surface of conventional molds is effectively prevented and the extention of the life by more than 6 times that of conventional Cr-plated molds is possible.

42. 发明专利

JPS5483633A CLEANING METHOD OF CASTING MOLD INNER FACE 失效
公开(公告)号：JPS5483633A
公开(公告)日：1979-07-03
申请号：JP15211777
申请日：1977-12-16
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , KAWAI SHINYA , OONISHI YOSHITOSHI
IPC分类号： B22D43/00 , B22D37/00

43. 发明专利

JPS52148430A DIPPING NOZZLE FOR CASTING 失效
公开(公告)号：JPS52148430A
公开(公告)日：1977-12-09
申请号：JP5596776
申请日：1976-05-14
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , NINOMIYA YOSHIKAZU , TAKARADA KAZUO
IPC分类号： C04B35/14 , B22D11/10 , B22D41/08 , B22D41/54

44. 发明专利

JPH0518679A SLAG OUTFLOW DETECTING METHOD UPON DISCHARGING MOLTEN METAL 失效
公开(公告)号：JPH0518679A
公开(公告)日：1993-01-26
申请号：JP19699691
申请日：1991-07-10
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITO TADASHI , TSUBONE ITSUKI , AZUMA JUN , MAEDA SHINICHI , SUGANO KUNITAKA , SEMURA KOUICHIROU
IPC分类号： C21C5/46 , F27D3/14 , F27D3/15
摘要： PURPOSE:To improve the accuracy of slag cut by a method wherein the outflow of slag upon the final period of tapping is detected by connecting to a signal processing device and slag detecting sensibility is changed in accordance with the change of operating condition such as the change of the diameter of a tap hole or the like. CONSTITUTION:A process computer 15 is connected to a control panel 14 or a signal processing device 13 while the change of operating condition, such as the change of the diameter of a tap hole or the like, is inputted into the process computer 15. According to this method, the set value of detection of the outflow of slag whereat the operation of a pneumatic slag stopper 6 is to be started, can be changed. The sensibility of the outflow of slag in accordance with the change of an operating condition is increased or decreased by an arbitrary amount from 20%, for example, whereby coping to shift the transmitting timing of the operation starting command of the pneumatic slag stopper in an early period can be effected. In this case, the timing of slag cut in accordance with the kind of steel at more correct timing becomes possible whereby very accurate slag cut can be effected.

45. 发明专利

JPH0390257A ELECTROMAGNETIC STIRRING METHOD IN MOLD IN CONTINUOUS CASTING FOR SLAB 失效
公开(公告)号：JPH0390257A
公开(公告)日：1991-04-16
申请号：JP16468590
申请日：1990-06-22
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITO TADASHI , MOTOMA NOBUYUKI , KIMURA MASAYASU , KAIHARA YASUO
IPC分类号： B22D11/10 , B22D11/115
摘要： PURPOSE:To reduce gas bubble involving inclusion, etc., into descending system by acting thrust force in drawing direction with an electromagnetic stirring device arranged at inside wide face or outside wide face in a mold for slab in the range except the prescribed length toward center from narrow face in the mold. CONSTITUTION:The electromagnetic stirring device 2 generating the thrust in the drawing direction of slab S arranged at the inside wide face of bending arc of the mold M for slab in a bending type continuous casting machine or in addition to the electromagnetic stirring device 2, further, electromagnetic stirring device 2' generating the thrust in the drawing direction of slab S arranged at the outside wide face 1' of the bending arc, are used. At the same time, the thrust in the drawing direction given to the molten steel 5 with these electromagnetic devices 2, 2', is practically acted in the range except the prescribed length L toward the center from side ends 4 at right and left sides of the cast wide face 3. In this result, the molten steel stream 6 is induced in the molten steel 5 and discharging flow velocity of the molten steel stream 9 discharged toward the narrow face direction from the discharging hole 8 in a submerged nozzle 7, is reduced and entering depth of the molten steel stream 10 entered into the slab S is restrained to prevent invasion of the bubble into inner part of the slab.

46. 发明专利

JPH01208364A SILICON NITRIDE-CONTAINING REFRACTORY BRICK FOR TREATING MOLTEN IRON 失效
公开(公告)号：JPH01208364A
公开(公告)日：1989-08-22
申请号：JP2874188
申请日：1988-02-12
申请人： SHINAGAWA REFRACTORIES CO , KOBE STEEL LTD
发明人： ICHIKAWA KENJI , FUJIWARA TEIICHI , TADA HIDENORI , TERASAKI MAMORU , SOEJIMA TOSHIYUKI , KOBAYASHI JUNKICHI , OSHIMA RYUZO , OTE AKIRA
IPC分类号： C04B35/103 , C04B35/10
摘要： PURPOSE:To obtain the title refractory brick excellent in corrosion resistance and capable of reducing thermal loss and thermal load on shell, by constituting the refractory brick of Si3N4, graphite, SiC, components selected from Al, silicon and B4C and alumina based raw material at specific ratios. CONSTITUTION:For example, a phenolic resin, as necessary, is added and kneaded with a raw material mixture of 3-15wt.% Si3N4 having

47. 发明专利

JPS63242455A METHOD FOR MEASURING TEMPERATURE OF CAST SLAB IN CONTINUOUS CASTING 失效
公开(公告)号：JPS63242455A
公开(公告)日：1988-10-07
申请号：JP7928087
申请日：1987-03-30
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , KAWAI KENJI , KAWAGUCHI HIROSHI
IPC分类号： B22D11/16
摘要： PURPOSE:To easily, accurately and continuously measure temp. of a cast slab by directly inserting a thermocouple into molten metal in a mold from upper part as cast-in and after that, sending out and supplying a compensating lead wire connected with the thermocouple in accordance with drawing speed of the cast slab. CONSTITUTION:The molten steel 3 is continuously cast into the bending type mold 1, and solidified shell 4 is drawn through guide rolls 6, to obtain the cast slab 5. In the above continuous casting equipment, the thermocouple 8 of Pt-PtRh, etc., is directly inserted into the molten steel 3 in a mold 1 through flux 7 from the upper part. This thermocouple 8, which heat resistant treatment is executed by high melting point metal of W, etc., is used, and brought into contact with solidified shell 4 and stuck. By this method, the thermocouple 8 is made to cast-in together with the molten steel 3 under solidified process. After that, the compensating lead wire 9, in which the heat resistant treatment as the same way as the above, is continuously sent out and supplied from a reel 10 in accordance with the drawing speed of the cast slab. By this method, variation of the temp. of solidified shell 4 in the cast slab is accurately and continuously measured over a secondary cooling zone from the mold 1, to stabilize the operation.

48. 发明专利

JPS6113154A Method for judging grade of aluminum killed cold rolled steel plate 失效
标题翻译：铝合金冷轧钢板的评定方法
公开(公告)号：JPS6113154A
公开(公告)日：1986-01-21
申请号：JP13484784
申请日：1984-06-28
申请人： Kobe Steel Ltd
发明人： SOEJIMA TOSHIYUKI , SAITOU TADASHI , ANZAI AKIRA , ANPUU JIYUNJI , AKIIZUMI KIYOHARU , MATSUDA YOSHIHIRO
IPC分类号： G01N27/72 , G01N21/88 , G01N29/04 , G01N33/20
摘要： PURPOSE: To rapidly perform accurate judgement, by applying a step cutting test to a rough bar cut as a crop.
CONSTITUTION: Each of the front and rear end edge parts of an aluminum killed steel plate is generally curved so as to form such a configuration that the intermediate part thereof in the lateral direction is curved in to the intermediate part side in the longitudinal direction. Therefore, the front and rear end parts of the aluminum killed steel plate are cut as crops after the completion of rough rolling. Macro-streak-flow investigation by step cutting is conducted on the rough bars cut as the crops and the grade of a final cold rolled product is judged on the basis of this investigation. Therefore, rapid and accurate judgement can be performed at the stage when rough rolling was finished.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了快速准确判断，通过对作为作物的粗糙条切割进行步进切割测试。构成：铝制防锈钢板的前端缘部和后端缘部各自为大致弯曲状，形成使其中间部在横向方向上沿纵向向中间部侧弯曲的构造。因此，在粗轧完成后，将铝合金钢板的前端部和后端部作为作物切断。在作物作物切割的粗糙条上进行横断面调查，根据本次调查判断最终冷轧产品的品位。因此，可以在粗轧结束的阶段进行快速准确的判断。

49. 发明专利

JPS6049844A ELECTROMAGNETIC STIRRING METHOD FOR CONTINUOUS CASTING OF SLAB 失效
公开(公告)号：JPS6049844A
公开(公告)日：1985-03-19
申请号：JP15944083
申请日：1983-08-31
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITOU TADASHI , ANZAI AKIRA , ANPUU JIYUNJI , YOKOYAMA HIDEKI , NAKATOUGE HIROSHI
IPC分类号： B22D11/10 , B22D11/115 , B22D11/12
摘要： PURPOSE:To decrease central segregation by providing two electromagnetic stirring installations juxtaposed with two in-roll type electromagnetic stirring installations apart at a space between each other over a slab and changing the direction of stirring flow with 1.4 ration between said space and the slab width as a reference. CONSTITUTION:Two in-roll type electromagnetic stirrers 23, 24 contg. coils for electromagnetic stirring in rolls are adjacently provided to constitute one electromagnetic stirring installation 21. Such installation 21 and an electromagnetic stirring installation 22 consisting similarly of stirrers 25, 26 are arranged on the top surface side of a slab 11. The directions of the stirring flow generated by the installations 21, 22 are made parallel with each other when >=1.4l/w (l is the space between the two electromagnetic stirring installations and w is the slab width). On the other hand, the directions are made parallel oppositely from each other when

50. 发明专利

JPS56134051A CONTINUOUS CASTING METHOD FOR STEEL 失效
公开(公告)号：JPS56134051A
公开(公告)日：1981-10-20
申请号：JP3777780
申请日：1980-03-24
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , SOEJIMA TOSHIYUKI , KOYAMA SHINJI , ANPUU JIYUNJI , YAO YASUTAKA
IPC分类号： B22D11/20 , B22D11/10 , B22D11/108 , B22D11/11
摘要： PURPOSE:To decrease the central segregation of an ingot by specifying the Ca concn. in the steel and ingot drawing speed in a Ca addition method. CONSTITUTION:When the Ca concn. (ppm) in steel and the drawing speed (m/ min) of an ingot are defined as y, x, this method is so arranged as to satisfy the formula. If the lower limit of y is below this value, the degree of the central segregation of C, S remains at below 1/2 that when Ca is not added and there is virtually no effect of Ca addition. When the upper limit of y exceeds this value, the decrease in the segregation owing to Ca addition reaches a threshold, and this results in increased cost, production of a large amount of Ca-base inclusions and possible degradation of the ingot quality. Further, below this value in the lower limit of x, the productivity drops considerably. When the upper limit is over this value, the molten steel pool in a mold grows long and iron static pressure increases, thereby resulting in increase bulging of the ingot between rolls, promoted central segregation and lost stabilization effect by Ca addition.

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