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31. 发明专利

JPS586917A TORPEDO CAR 失效
公开(公告)号：JPS586917A
公开(公告)日：1983-01-14
申请号：JP10425281
申请日：1981-07-02
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , ITOU SHIYUUZOU , KAWAI KENJI , NAKAGISHI OKUHIRA , MORIKAWA TOSHIO
IPC分类号： C21C1/06
摘要： PURPOSE:To enable effective refining with a torpedo car by providing a plurality of nozzles for blowing starting materials for refining to the upper part of the car body. CONSTITUTION:The body 1 of this torpedo car formed with a refractory wall 2 and an iron shell 3 has a plurality of blowing nozzles 5 piercing the shell 3 and the wall 2 in the upper part in the longitudinal direction. The nozzles 5 may be used separately, the body 1 may be tilted, and a dipping lance may be put in the body 1 from the iron receiving and discharging hole 4 to secondarily use the nozzles 5. Starting materials for refining are mixed into molten iron 10 while freely regulating the depth. Thus, effective refining is carried out.

32. 发明专利

JPS5626663A METHOD FOR PREVENTING ENTRY OF INCLUSION IN CONTINUOUS CASTING OF STEEL 失效
公开(公告)号：JPS5626663A
公开(公告)日：1981-03-14
申请号：JP10093879
申请日：1979-08-07
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , KAWASAKI SHIYOUZOU , MATSUO KATSUYOSHI , MORIJI TAKEJI , NINOMIYA YOSHIKAZU , KOMINAMI TAKANORI
IPC分类号： B22D11/10 , B22D11/11 , B22D11/112 , B22D11/116 , B22D11/117 , B22D11/118
摘要： PURPOSE:To allow gas bubbles to contact the molten steel from both sides of the molten steel passage provided to the ingates of a tundish, accelerate the floating of inclusions and improve the inclusion removing effect by providing inert gas bubble generators on both saids of the passage. CONSTITUTION:Both sides of the cylinder 17 of a molten steel passage are supported by ingate members 5a, 5a and the cavity 20 between the ingate members 5a is made a chamber for filling an inert gas. The lower parts of the ingate members 5a, 5a supporting the cylinder 17 are formed by gas permeable members to provide an inlet side 21a and an outlet side 21. Then, the inert gas emits from the outlet and inlet sides 21a, 21 by becoming gas bubbles and is mixed into the molten steel. Part of the gas bubbles generated on the inlet side 21a pass through the cylinder 17 together with the molten steel and are moved upward by the gas bubbles generated on the outlet side 21, whereby the floating of the inclusions in the molten steel is accelerated.

33. 发明专利

JPS55123094A IMPROVING MATERIAL FOR DESULFURIZED SLAG AND ITS METHOD 失效
公开(公告)号：JPS55123094A
公开(公告)日：1980-09-22
申请号：JP2814779
申请日：1979-03-09
申请人： KOBE STEEL LTD , RIKEN KOGYO KK
发明人： KITAMURA MINORU , SOEJIMA TOSHIYUKI , HAYASHI TSUTOMU , AMIMOTO YOSHIO , MORITSUGI TAKEJI , TOZAWA ISAO
IPC分类号： B32B3/12 , C04B5/00 , C21C1/02 , C21C7/064 , F16S1/04

34. 发明专利

JPS5594413A RECYCLING METHOD OF DESULFURIZATION BASE METAL 失效
公开(公告)号：JPS5594413A
公开(公告)日：1980-07-17
申请号：JP259379
申请日：1979-01-11
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , KAWASAKI SHIYOUZOU , HAYASHI TSUTOMU , OOKUBO SEIJI , KISHIMOTO MASANOBU , HORI RIYUUICHI , MORITSUGI TAKEJI
IPC分类号： C21C1/02
摘要： PURPOSE:To recover the pig iron with desulfurizing slag which has hitherto been discarded by coarse-separating the pig iron deposited with desulfurizing slag produced at the outside desulfurization of molten iron then charging the same into the mixer car or the like prior to iron receiving and newly performing iron receiving and outside desulfurization. CONSTITUTION:Blast furnace iron is received in a mixer car or the like and desulfurizer and desulfurization accelerator are blown therein by using carrier gas to perform outside desulfurization of the molten iron. At this time, the temperature lowers owing to blowing of the carrier gas and the included blast furnace slag solidifies as desulfurization slag which then floats on the molten iron. The desulfurized molten iron is transferred to a mixing furnace and molten iron pan, by which it is carried to a steel making furnace such as converter. The solid desulfurization slag and deposited molten iron remained in the mixer car are discharged from the mixer car. The pig iron is coarse-separated from the solid desulfurization slag and is charged into an empty mixer car, into which is then newly received blast furnace iron and these are mixed and melted and are subjected to outside desulfurization operation. The pig iron which has hitherto been discarded together with the desulfurization slag is recovered.

35. 发明专利

JPS5534657A MANUFACTURE OF CLEAN STEEL 失效
公开(公告)号：JPS5534657A
公开(公告)日：1980-03-11
申请号：JP10707878
申请日：1978-08-31
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , KASAMATSU YUTAKA , KOYAMA SHINJI , SOEJIMA TOSHIYUKI , KAWASAKI SHIYOUZOU , TANAKA TAKAYOSHI , KAWAI KENJI , AZUMI AKITO
IPC分类号： C21C7/064 , B22D11/10 , B22D11/108 , C21C7/04
摘要： PURPOSE:To enhance the mechanical properties and anisotropy of steel products by predeoxidizing molten steel discharged from a refining furnace; supplying a specified amt. of a Ca-contg. material into a deep part of the steel to reduce the S content; flotation-separating Ca type inclusions; and further adding a Ca-contg. material during pouring. CONSTITUTION:Molten steel discharged into a ladle or the like from a refining furnace is predeoxidized, and a Ca-contg. material such as Ca or Ca-Si is supplied into a deep part of the steel in an amt. above 0.05 kg as Ca/ton of molten steel/ 0.001% of S content to reduce the S content to below 0.005%. The molten steel is then agitated or degassed to flotation-separate Ca type inclusions. During pouring the steel a Ca-contg. material is added in an amt. of 0.01-0.1 kg as Ca/ton of molten steel/0.001% of S content. By this method MnS inclusion can be reduced drastically, so the anisotropy, ductility, toughness, etc. of the steel can be enhanced.

36. 发明专利

JPH0122063B2 失效
公开(公告)号：JPH0122063B2
公开(公告)日：1989-04-25
申请号：JP21297682
申请日：1982-12-03
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , KAWASAKI SHOZO , ANPU JUNJI , YOKOYAMA HIDEKI
IPC分类号： B22D11/10 , B22D11/115

37. 发明专利

JPS6154083B2 失效
公开(公告)号：JPS6154083B2
公开(公告)日：1986-11-20
申请号：JP11560381
申请日：1981-07-22
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , ITO SHUZO , OOKAMI MASAHIKO , MATSUI HIDEO , KIMURA MASAYASU
IPC分类号： C21C5/36

38. 发明专利

JPS6031883B2 失效
公开(公告)号：JPS6031883B2
公开(公告)日：1985-07-25
申请号：JP4244078
申请日：1978-04-10
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , SOEJIMA TOSHUKI , HAYASHI TSUTOMU , MATSUI HIDEO
IPC分类号： C21C5/28 , C21C5/36 , F27D15/00

39. 发明专利

JPS605361B2 失效
公开(公告)号：JPS605361B2
公开(公告)日：1985-02-09
申请号：JP10783278
申请日：1978-09-02
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , HIROSE ISAMU , TSUDA OSAMU , MIZUTA TOKUO
IPC分类号： B21B1/02 , B21B15/00

40. 发明专利

JPS59137783A Method of measuring depth of electrode in sealed electric furnace 失效
标题翻译：密封电炉电极深度测量方法
公开(公告)号：JPS59137783A
公开(公告)日：1984-08-07
申请号：JP1039983
申请日：1983-01-24
申请人： Kobe Steel Ltd
发明人： KITAMURA MINORU , KURITA YUKIYOSHI , OKABAYASHI YOSHIHARU , MIYAJI MASATAKA , MORIMOTO MASAO , TERADA SHIGEKI
IPC分类号： F27B3/08 , F27B3/28

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