专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

KR810001177B1 DEOXIDIZATION KILLED AGENT FOR STEEL SLAG FORMING 失效
公开(公告)号：KR810001177B1
公开(公告)日：1981-09-25
申请号：KR780002489
申请日：1978-08-16
申请人： KOBE STEEL LTD
发明人： KAWASAKI SHOUJOU , KITAMURA MIRORU , KANAZUKA YASUO , SOEJIMA TOSHIYUKI , HAYASHI TSUTOMU , MOROTOMI MASATOSHI
IPC分类号： C21C5/28
摘要： The antifoaming agent comprises organic matter, 30-60 wt. % NacCO3 >= 5 wt. %, and >= 1 wt. % of CaO, SiO2, MgO, MnO, Al2O3 and FeO balance. The agent is used in an O top-blowing basic converter. Thus, when a mixture of plup, converter slag 30-60 wt. %, and Na2CO3 5 wt. % is added to slag after high C steel, it approved effects on the depression of foaming in a short time of 20-30 seconds in stead of the existing time of 60-90 seconds.

2. 发明专利

CA2019891A1 ELECTROMAGNETIC AGITATING METHOD IN MOLD OF CONTINUOUS CASTING OF SLAB 未知
公开(公告)号：CA2019891A1
公开(公告)日：1990-12-27
申请号：CA2019891
申请日：1990-06-26
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITO TADASHI , GENMA NOBUYUKI , KIMURA MASAYASU , KAIHARA YASUO
IPC分类号： B22D11/10 , B22D11/115 , B22D27/02 , B22D11/04 , B22D27/08 , B22D11/12
摘要： An electromagnetic agitating method in a casting mold in a slab continuous casting in which electromagnetic agitating devices for generating a thrust force in slab drawing direction are arranged at at least an inner wide surface of both inner and outer surfaces of the slab casting mold in a bending type continuous casting machine and the thrust force in the drawing direction applied to molten steel within the casting mold by the electromagnetic agitating devices is substantially applied from the narrow surface of said casting mold toward the center thereof in a range except a predetermined length to perform an electromagnetic agitation of molten steel.

3. 发明专利

JPS6333173A REFINING CASTING EQUIPMENT 失效
公开(公告)号：JPS6333173A
公开(公告)日：1988-02-12
申请号：JP17598086
申请日：1986-07-26
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , KOBAYASHI JUNKICHI , MATSUO KATSUYOSHI , KIMURA MASAYASU
IPC分类号： B22D1/00 , B22D47/00
摘要： PURPOSE:To eliminate the need for a stage for partial pouring by a small sized ladle and transporting the same and to prevent the drop of the molten metal temp. before pouring by constituting refining casting vessels imposed to plural vessel imposing frames provided to the peripheral part of a swiveling turret near a continuous casting mold in such a manner that said vessels can be turned downward. CONSTITUTION:The swiveling turret 1 is disposed near the continuous casting mold 3 and the refining casting vessels 6 which can be turned downward are imposed on the plural frames 4 provided to the peripheral part thereof. The molten metal 11 received from a large-size ladle 12 is added 9 with an alloy in the process of intermittent swiveling of the turret 1 and is subjected to gas stirring 10, slag removal 13 and stagnation; thereafter the molten metal is turned downward in the pouring position and is poured from a nozzle 7 into the casting mold 3. Since the stage for transporting the partially poured metal by the conventional small-sized ladle is omitted, the drop of the molten metal temp. on route is prevented. The installation of a high-frequency induction heater 8 to the bottom of the refining casting vessel 6 to prevent the drop of the molten metal temp. is an equally good practice.

4. 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

5. 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.

6. 发明专利

JPS54162626A BONDING INSULATING SLEEVE 失效
公开(公告)号：JPS54162626A
公开(公告)日：1979-12-24
申请号：JP7247578
申请日：1978-06-14
申请人： KOBE STEEL LTD , HIRONO KAGAKU KOGYO , TERU KAGAKU KOUGIYOU KK
发明人： SOEJIMA TOSHIYUKI , YAMAZAKI MASAOMI , YOSHIDA MASANOBU , OKUMURA HIROSHI
IPC分类号： B22D7/10 , B22C1/18 , C09J1/00 , C09J1/02 , C09J5/00

7. 发明专利

JPS5497531A PROTECTION OF HEAT INSULATING RISER FRAME 失效
公开(公告)号：JPS5497531A
公开(公告)日：1979-08-01
申请号：JP504078
申请日：1978-01-19
申请人： KOBE STEEL LTD , NIPPON TOKUSHU ROZAI KK , AIKOH CO
发明人： SOEJIMA TOSHIYUKI , NINOMIYA YOSHIKAZU , HONGOU YASUROU , ARIKAWA TADASHI
IPC分类号： B22D7/10

8. 发明专利

JPS5337530A METHOD OF TREATING SURFACE OF CONTINUOUSLY CAST ALUMINIUM KILLED STEEL 失效
公开(公告)号：JPS5337530A
公开(公告)日：1978-04-06
申请号：JP11267876
申请日：1976-09-20
申请人： KOBE STEEL LTD
发明人： NAGAOKA YUTAKA , YAO YASUTAKE , KOYAMA SHINJI , HIRANO TADASHI , SOEJIMA TOSHIYUKI , YOSHIMOCHI AKITOSHI , NINOMIYA YOSHIKAZU
IPC分类号： B23K7/06 , B22D11/10 , B22D11/12 , B22D11/126 , B22D11/128

9. 发明专利

JPH0342159A PLASMA HEATING METHOD FOR MOLTEN STEEL 失效
公开(公告)号：JPH0342159A
公开(公告)日：1991-02-22
申请号：JP17636989
申请日：1989-07-07
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITO TADASHI , MATSUMOTO HIROSHI , MAEDA MASAHIRO
IPC分类号： B22D11/10 , B22D41/01
摘要： PURPOSE:To facilitate the heating up of the molten steel in a vessel or the maintenance of temp. by controlling the atmosphere of the space in the vessel atop a molten steel at the specific atmosphere gas compsn. and plasma-heating the molten steel, thereby expanding the output control range of the plasma heating. CONSTITUTION:The molten steel is continuously cast while a gaseous mixture composed of Ar and Co is supplied from a gaseous mixture supply pipe 7 by controlling the mixing ratio of the Co with the Ar in a 1 to 20vol.% range and while the temp. of the molten steel M in a tundish 3 is maintained by controlling a plasma heating device 8. An arc voltage is increased in this way by increasing the mixing ratio of the CO with respect to the same arc length, by which the plasma output can be increased and the adjusting range thereof is widened.

10. 发明专利

JPS61212457A VERTICAL TYPE CONTINUOUS CASTING INSTALLATION FOR SLAB HAVING LARGE SECTION 失效
公开(公告)号：JPS61212457A
公开(公告)日：1986-09-20
申请号：JP5526085
申请日：1985-03-18
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITO TADASHI , ANZAI AKIRA , ANPUU JUNJI , NAKATAO HIROSHI , UEDA TERU
IPC分类号： B22D11/10 , B22D11/115 , B22D11/12 , B22D11/128
摘要： PURPOSE:To cast a slab having a large section and good quality by providing electromagnetic stirrers which stir the unsolidified part in a slab descending from a casting mold and stirring said part at the height at which the residual molten steel rate attains an optimum value. CONSTITUTION:The molten steel is poured from a tundish into the casting mold 2 and a dummy bar 3 is fixed to right under the mold 2 to wait for the solidification of the molten steel. The dummy bar 3 is lowered and support rolls 5, 6 are driven and rotated by the slab 1 to support the slab 1 from both sides when the residual molten steel rate in the mold 2 attains about 30%. The in-roll electromagnetic stirrer 5a incorporated into each support roll 5 is started to stir the unsolidified part 1a in the slab 1 at the same instant when the bar 3 starts descending. All of the stirrers 5a are not simultaneously driven but only the stirrers 5a occupying the optimum stirring position are selectively driven according to the descending of the slab 1 in this case.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式