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. 发明专利

JPS59223163A METHOD OF REMOVING SURFACE FLAW OF STEEL MATERIAL 失效
公开(公告)号：JPS59223163A
公开(公告)日：1984-12-14
申请号：JP9858283
申请日：1983-06-01
申请人： KOBE STEEL LTD
发明人： KAWASHIMA SADAO , NAKATSUKA TOSHIROU , TSURUYA SABUROU , KAWATE TAKEO , HORIUCHI TAKEFUMI , TOMONAGA MITSUO , MASUDA NOBUTOMO , IMAMURA HIROSHI , KITAMURA MINORU
IPC分类号： B23K10/00 , B23K9/00
摘要： PURPOSE:To avoid deterioration of the quality of a base metal, avoid excessive scarfing and lengthen the life of electrode in removing surface flaws of steel material utilizing a plasma arc by using gaseous mixture of H2 and Ar as working gas. CONSTITUTION:In a plasma arc generating device consisting of a water cooling nozzle having a built-in electrode, working gas and an electric apparatus, a steel material is made a base metal 1 and plasms is generated between the base metal and nozzle to remove surface flaws of the base metal. Gaseous mixture of 20- 60% H2 gas, 80-40% Ar gas in volume is used as working gas. By this way, even when the working gas is absorbed by scarfing zone of the base metal, the quality of the base metal is not deteriorated. As the thermal pinch effect of the working gas is appropriate, the scarfing zone is not scarfed more than necessary. Even when plasma output or scarfing speed is high, gently arcing scarfing groove 2 is obtained, and even if an ordinary W electrode is used, the life can be prolonged.

2. 发明专利

JPS59202391A Method of treating exhaust gas containing alkali metal compound generated by preparatory smelting of molten iron 失效
标题翻译：通过钼铁制备冶炼产生的包含碱金属化合物的排气的处理方法
公开(公告)号：JPS59202391A
公开(公告)日：1984-11-16
申请号：JP7581483
申请日：1983-04-28
申请人： Kobe Steel Ltd , Mitsubishi Heavy Ind Ltd
发明人： KITAMURA MINORU , ITOU SHIYUUZOU , KIMURA TSUKASA , ANDOU JIYOUJI , MATSUI KAZUO , OKAYA HITOSHI
IPC分类号： C21C1/00 , C21C5/38 , F27D17/00
CPC分类号： Y02A50/2357 , Y02P10/283

3. 发明专利

JPS59202160A Attaching and detaching device for cover of ladle for molten steel 失效
标题翻译：连接和拆卸装置用于硬质钢板的覆盖物
公开(公告)号：JPS59202160A
公开(公告)日：1984-11-15
申请号：JP7795283
申请日：1983-05-02
申请人： Kobe Steel Ltd
发明人： KITAMURA MINORU , YAMASHITA HIROSHI , HARADA EIJIROU , KAWABATA TOSHIHIRO , KAWAI KENJI , TAMURA MITSUYOSHI
IPC分类号： B22D41/00
CPC分类号： B22D41/00
摘要： PURPOSE:To attach and detach efficiently and safely the cover of a ladle by constituting a pair of hooks and a pair of suspending handles in such a way that these members can be engaged and disengaged. CONSTITUTION:Removal of a ladle cover 2 is accomplished by extending a piston 21A in an electrically driven cylinder 21 to bring down beforehand hooks 5A, 5B. If a motor 13 is run forward, a frame carriage 6 advances and the hooks 5A, 5B advance as well. A limit switch is tripped by a striker for detecting the ladle cover upon contacting of the striker with the cover 2, then the hooks 5A, 5B stop advancing. When the piston 21A in the cylinder 21 is returned, the hooks 5A, 5B are engaged with suspending handles 3A, 3B and stop after ascending by a prescribed height. The hooks 5A, 5B retreat when the motor 13 is run backward in this state, then the cover 2 is easily removed from a ladle 1.
摘要翻译：目的：通过构成一对钩和一对悬挂手柄，使这些构件能够接合和脱开，从而有效和安全地将钢包的盖子附着和分离。构成：通过将电动气缸21中的活塞21A延伸以预先钩住5A，5B来实现钢包盖2的移除。如果马达13前进，则框架架6前进，并且钩5A，5B也前进。一个限位开关由一个撞针跳闸，用于在碰撞器与盖子2接触时检测钢包盖，然后钩5A，5B停止前进。当气缸21中的活塞21A返回时，钩5A，5B与悬挂手柄3A，3B接合，并在上升一定高度后停止。当马达13在这种状态下向后运动时，钩5A，5B退回，然后盖子2容易地从钢包1中取出。

4. 发明专利

JPS58205677A Flaw scraping apparatus for billet 失效
标题翻译：用于玻璃的FLAW SCRAPING设备
公开(公告)号：JPS58205677A
公开(公告)日：1983-11-30
申请号：JP8918982
申请日：1982-05-25
申请人： Kobe Steel Ltd
发明人： KAWASHIMA SADAO , KITAMURA MINORU , IMAMURA HIROSHI , MASUDA NOBUTOMO , TOMONAGA MITSUO , KOBAYASHI AKIRA
IPC分类号： B23K9/013 , B23K7/06
CPC分类号： B23K7/06
摘要： PURPOSE:To highly efficiently perform scraping works with appropriate melt scraping amounts according to the kind of flaws, by installing a torch and projector to a traverse carriage mounted on a running truck through an elevating arm and by operating the torch in accordance with a flaw mark detect signal outputted from a camera device. CONSTITUTION:A camera device 29 is installed above a traverse carriage 11 mounted on a running truck 6 which runs along a bed 1 and flow marks 3 on a billet 4 on the bed 1 are detected. The head section of a torch fitted to the carriage 11 moves near to the flaw mark 3. Then, the truck 6 and carriage 11 are moved and the reticle thrown by the projector 27 is made to coincide with the flaw mark 3 and an elevating arm 18 is lowered. A plasma output electric current is set on a controller 46 according to the flaw mark 3 and the flaw is melt scraped off by moving the truck 6 and operating a following-up device 21, blow-off nozzle 25, and plasma torch 24. When the scraping work is completed, the plasma arc is extinguished and the truck moves to the next flaw position with the elevating arm 18 at the lifted position.
摘要翻译：目的：根据瑕疵的种类，通过适当的熔体刮除量高效地进行刮除工作，通过将手电筒和投影仪安装在通过升降臂安装在行驶车上的横动滑架上，并按照瑕疵操作手电筒检测从相机装置输出的信号。构成：摄像机装置29安装在安装在沿着床1行进的行驶车6上的横动滑架11上，检测床1上坯料4上的流痕3。安装在滑架11上的手电筒的头部移动到靠近缺陷标记3.然后，卡车6和托架11移动，使投影仪27投掷的掩模版与缺陷标记3和升降臂 18降低。根据缺陷标记3在控制器46上设置等离子体输出电流，并且通过移动卡车6并操作后跟装置21，吹离喷嘴25和等离子体焰炬24来将熔痕刮掉。当刮削作业完成，等离子体电弧熄灭，并且卡车移动到下一个缺陷位置，升降臂18处于提升位置。

5. 发明专利

JPS5839756A MANUFACTURE OF MN FERROALLOY 失效
公开(公告)号：JPS5839756A
公开(公告)日：1983-03-08
申请号：JP13820081
申请日：1981-09-02
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , KURITA YUKIYOSHI , ITOU SHIYUUZOU , KATAOKA KUNIO , KIMURA MASAYASU
IPC分类号： C22C1/00 , C22C1/02 , C22C33/04
摘要： PURPOSE:To manufacture an Mn ferroalloy while effectively utilizing Mn ore by using MnO-rich slag obtd. by adding Mn ore in slag-minimum or slagless refining in a converter by top and bottom blowing as a starting material for manufacturing a ferroalloy. CONSTITUTION:Molten iron treated to remove Si, P, S, etc. is charged into a top and bottom blowing converter, and after adding Mn ore, slag-minimum or slagless refining is carried out to obtain MnO-rich slag by

6. 发明专利

JPS5819426A PRODUCTION OF LOW PHOSPHORUS, LOW SULFUR AND HIGH CARBON STEEL 失效
公开(公告)号：JPS5819426A
公开(公告)日：1983-02-04
申请号：JP11887381
申请日：1981-07-28
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , ITOU SHIYUUZOU , KAWAI KENJI , MATSUI HIDEO , KIMURA MASAYASU
IPC分类号： C21C7/064 , C21C7/00
摘要： PURPOSE:To obtain low phosphorus, low-sulfur and high-carbon steel of a high grade surely and economically by mixing low-phosphorus and low-sulfur iron at a proper amt. with refined low phosphorus, low sulfur and low carbon steel. CONSTITUTION:The molten iron C obtd. in a blast furnace BF is treated with dephosphorizing and desulfurizing agents of soda ash or lime to obtain molten iron C-1. The iron C-1 is charged into a converter 2, where a flux 3 is added thereto and the molten iron is subjected to blowing under ordinary conditions, whereby the molten steel C-2 of low phosphorus, low sulfur and low carbon is obtained. The steel C-2 is transferred into a mixing pan 4, where a disoxidizing agent 5 is charged thereto, whereby molten steel C-3 is obtained. On the other hand, the molten iron C of low phosphorus, low sulfur and high carbon obtd. by dephosphorization and desulfurization of the other molten iron C' by the method similar to the above-mentioned method is added to the steel C-3 in said pan 4 and both are mixed, whereby molten steel C-5 of low phosphorus, low sulfur and high carbon is obtained. Thereafter, a product C-6 is obtained by the processes similar to those in the prior art. The product C-6 is the low- phosphorus, low-sulfur and high-carbon steel contg., for example, 0.72% C, 0.25% Si, 0.65% Mn, 0.005% P, and 0.005% S.

7. 发明专利

JPS5816017A DEOXIDIZING METHOD FOR CONVERTER REFINED MOLTEN STEEL 失效
公开(公告)号：JPS5816017A
公开(公告)日：1983-01-29
申请号：JP11560481
申请日：1981-07-22
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , ITOU SHIYUUZOU , KIMURA MASAYASU
IPC分类号： C21C7/06
摘要： PURPOSE:To control the amt. of addition of a deoxidizing agent accurately by subjecting the molten steel which is desiliconized, dephosphorized and desulfurized to slagless refining so as to contain slag at a specific amt. in a bottom blown converter, and adding the deoxidizing agent at the amt. corresponding to the measured amt. of dissolved oxygen after tapping. CONSTITUTION:The molten steel which is beforehand desiliconized, dephosphorized and desulfurized is charged into a top and bottom blown converter and is subjected to slag min. refining or slagless refining in such a way that the slag is contained at

8. 发明专利

JPS5623211A MODIFYING MATERIAL OF SLAG AND ITS USING METHOD 失效
公开(公告)号：JPS5623211A
公开(公告)日：1981-03-05
申请号：JP9914579
申请日：1979-08-02
申请人： KOBE STEEL LTD , RIKEN KOGYO KK
发明人： KITAMURA MINORU , SOEJIMA TOSHIYUKI , HAYASHI TSUTOMU , MORITSUGI TAKEJI , TOZAWA ISAO , SATOU SHIYUNJI , HOSHIJIMA SHINOBU
IPC分类号： C21C1/02
摘要： PURPOSE:To prevent the decrease of the desulfurizing effect of the desulfurizing agent caused by the solidification of the blast furnace slag in the presence of the desulfurizing agent, and prevent also the discharge of the slag due to the solidification, at the time of subjecting the molten iron contg. the blast furnace slag to out-of-furnace desulfurizing treatment in a mixer car or the like, by simultaneously adding the slag modifying material of the specific constitution. CONSTITUTION:In the process of receiving the molten iron tapped from a blast furnace into a mixer car and transferring the same to a steel making factory, a desulfurizing agent such as CaC2 or CaO is blown into the molten iron by a carrier gas such as N2 and out-of-furnace desulfurization is accomplished. Since in this case some molten blast furnace slag exists in the mixer car besides the molten iron, it reacts with said desulfurizing agent of a high melting temp., and this elevates the melting temp. of the blast furnace slag and causes the slag to solidify. The solidified blast furnace slag becomes difficult to be discharged from the mixer car and this gives rise to resulfurization from the solid slag. To prevent these, the slag modifying agent comprising 30-55% SiO2, 20%>Al2O3, 5-25% MgO, 5-10% compound of alkali metals or alkaline earth metals and iron oxide such as Fe2O3 and Fe3O4 is added to lower the m.p. of the blast furnace slag and improve its fluidity, thereby preventing the slag from solidifying.

9. 发明专利

JPS5514873A OPERATING METHOD FOR VACUUM DEGASSING OF MOLTEN STEEL 失效
公开(公告)号：JPS5514873A
公开(公告)日：1980-02-01
申请号：JP8787778
申请日：1978-07-18
申请人： KOBE STEEL LTD
发明人： KITAMURA MINORU , KAWASAKI SHIYOUZOU , ITOU SHIYUUZOU , KAWAI SHINYA , KAWABATA TOSHIHIRO , MAEKAWA HIROHIKO , MIKI KATSUMI , MIYAZAKI TOSHIO
IPC分类号： C21C7/10
摘要： PURPOSE:To rapidly and accurately adjust the vacuum degree in the vessel to desired value and safely and smoothly carry out the operation, by carrying out the control of blowing of control gas in the system, injecting vapor pressure of ejector and exhaust gas flowing volume etc. CONSTITUTION:The cut-off valve 21, 22, 23 of the exhaust gas take-ut tube 18, 19, 20, are switched by the change-over circuit 24 corresponding to the pressure level in the degassing vessel 1 and necessary control gas is sent to the blowing piping 14. Also, the steam pressure control valve 26 provided on the pressure display controller Pic, is equipped on the vapor injection piping 25 in the steam ejector 2 and jetting steam volume from the nozzle N is controlles so as to correspond with the set up pressure value. Or, the pressure control part is equipped on connecting duct connecting each ejector 2-7 of exhaust gas system and openig degree of damper etc. is controlled. By the above method, operation corresponding to the purpose of degassing treatment against each molten steel, is able to carry out.

10. 发明专利

JPS5465113A FOAMING PHENOMENON KILLING AGENT FOR STEEL SLAG 失效
公开(公告)号：JPS5465113A
公开(公告)日：1979-05-25
申请号：JP13179677
申请日：1977-11-02
申请人： KOBE STEEL LTD , YAMADA IND
发明人： KITAMURA MINORU , SOEJIMA TOSHIYUKI , KAWASAKI SHIYOUZOU , MOROTOMI MASATOSHI , HAYASHI TSUTOMU , KANEZUKA YASUO
IPC分类号： C21C5/28 , C21C5/36
摘要： PURPOSE:To provide the title agent showing a reliable effect in a short time and consisting of an org. substance, Na2CO3 and the balance one or more kinds of inorg. oxides such as CaO, SiO2, MgO, MnO, Al2O3 and FeO. CONSTITUTION:The agent consists of an org. substance; 30-60 wt%, Na2CO3>= 5 wt% and the balance one or more kinds of inorg. oxides such as CaO, SiO2, MgO, MnO, Al2O3 and FeO. The org. substance includes waste of paper manufacture, tar, pitch, wood chips, coke, coal, etc., yet the waste which is industrial waste or wastepaper is pref. used in respect of economical efficiency. The surface area of the agent is made as large as possible which ensuring a specific gravity at which the agent does not float when charged into molten steel.

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