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    • 1. 发明申请
    • METHOD OF MANUFACTURING ULTRA LOW CARBON FERRITIC STAINLESS STEEL
    • 制造超低碳不锈钢的方法
    • WO2009075464A1
    • 2009-06-18
    • PCT/KR2008/005745
    • 2008-09-30
    • POSCOPARK, Joo HyunBYUN, Sun MinLEE, Sang BeomSUK, Min OhLEE, Hee Ho
    • PARK, Joo HyunBYUN, Sun MinLEE, Sang BeomSUK, Min OhLEE, Hee Ho
    • B22D1/00
    • C21C7/10C21C7/0075C21C7/0685C21C7/072C21C7/076C22C38/001C22C38/004C22C38/02C22C38/04C22C38/06C22C38/28Y02P10/242
    • The present invention relates to a method of manufacturing a ferritic stainless steel containing an ultra low level of carbon concentration in molten steel within time shorter than existing technology by controlling content, appropriate composition, and liquid-state fraction, etc., of Cr 2 O 3 in slag to maximize vacuum decarburization refining efficiency, the method comprising: tapping molten steel to a ladle in a non-deoxidized state after pre-decarburization and deni- trification in an AOD refining furnace and then removing non-deoxidized slag on an upper of the molten steel of the ladle; seating the ladle to a large vacuum furnace, reducing pressure and then blowing-in oxygen gas from the upper of the molten steel through a lance, thereby performing decarburization reaction; creating Al 2 O 3 by injecting Al at point of time of beginning of oxygen blowing; forming CaO-Al 2 O 3 -Cr 2 O 3 -MgO-based slag by injecting calcium oxide at point of time of completion of the oxygen blowing to allow vacuum fine decarburization to be promoted by reaction between Cr 2 O 3 in the slag and C in the molten steel through reaction of the molten steel and the slag with a good fluidity after the completion of the oxygen blowing; and supplying inert gas such as Ar through a porous plug on a bottom of the ladle in order to maximize efficiency of the vacuum fine decarburization.
    • 本发明涉及一种通过控制Cr 2 O 3的含量,适当组成和液态分数等在现有技术中短时间内制造含有超低水平碳钢浓度的铁素体不锈钢的方法。 炉渣以使真空脱碳精炼效率最大化,该方法包括:在AOD精炼炉中预脱碳和脱硫后,将钢水以非脱氧态的钢水进行脱水,然后除去熔融的上部的非脱氧渣 钢包钢; 将钢包放入大型真空炉中,降低压力,然后通过喷枪从钢水上部吹入氧气,进行脱碳反应; 通过在开始吹氧的时间点注入Al来产生Al 2 O 3; 通过在氧气吹炼完成的时间点注入氧化钙来形成CaO-Al 2 O 3 -Cr 2 O 3 -MgO基炉渣,以通过炉渣中的Cr 2 O 3和钢水中的C之间的反应来促进真空微细脱碳 氧气吹制完成后,钢水和炉渣的流动性良好; 并且通过多孔塞将诸如Ar的惰性气体在钢包的底部供应,以使真空精细脱碳的效率最大化。
    • 2. 发明申请
    • METHOD FOR MANUFACTURING FERRITIC STAINLESS STEEL SLABS WITH EQUIAXED GRAIN STRUCTURES AND THE FERRITIC STAINLESS STEEL MANUFACTURED BY IT
    • 制造具有均匀颗粒结构的不锈钢不锈钢板及其制造的不锈钢不锈钢的方法
    • WO2007074970A1
    • 2007-07-05
    • PCT/KR2006/004673
    • 2006-11-09
    • POSCOPARK, Joo HyunSONG, Hyo SeokLEE, Hee HoKIM, Dong SikLEE, Kyo Soo
    • PARK, Joo HyunSONG, Hyo SeokLEE, Hee HoKIM, Dong SikLEE, Kyo Soo
    • C21C5/52
    • C21C7/0685C21C7/0006C21C7/06C21C7/10
    • Disclosed is a method for manufacturing ferritic stainless steel slabs with equiaxed grain structures and the ferritic stainless steel manufactured by it, which control concentration of alumina inclusions in molten steel to maximize an available TiN generation effect serving as a non-uniform nucleating site of ferrite when solidifying it, thereby improving equiaxed crystal ratio, the method comprising the steps of: performing oxygen decarburization reaction by blowing oxygen from the upper part of the molten steel in a vacuum oxygen decarburization ladle; injecting Al in the molten steel to which the oxygen decarburization reaction is made for Cr 2 O 3 reduction; making composite deoxidation by injecting deoxidizer in the molten steel into which the Al is injected for the Cr 2 O 3 reduction; making alloying process by injecting alloying metal in the molten steel; first judging for judging whether Al concentration is in the range of a setting value by analyzing the Al concentration in the molten steel; if the Al concentration satisfies the setting value, stirring it using inert gas and second judging for judging whether alumina inclusion concentration in the final molten steel corresponds to a target value; and if the alumina inclusion concentration satisfies the target value, continuously casting the molten steel.
    • 公开了一种用于制造具有等轴晶粒结构的铁素体不锈钢板和由其制造的铁素体不锈钢的方法,其控制钢水中的氧化铝夹杂物的浓度以最大化作为铁素体非均匀成核位点的可用TiN产生效应, 固化,从而提高等轴晶体比,该方法包括以下步骤:通过在真空氧脱碳钢包中从钢水的上部吹氧来进行氧脱碳反应; 在进行氧化脱碳反应的钢水中注入Al以进行Cr 2 O 3 O 3还原; 通过在其中注入Al的钢水中注入脱氧剂来进行复合脱氧以进行Cr 2 O 3 N 3还原; 通过在钢水中注入合金金属来制造合金化工艺; 首先通过分析钢水中的Al浓度来判断铝浓度是否在设定值的范围内; 如果Al浓度满足设定值,则使用惰性气体进行搅拌,第二判断判断最终钢水中的矾土夹杂物浓度是否为目标值; 并且如果氧化铝夹杂物浓度满足目标值,则连续铸造钢水。
    • 3. 发明申请
    • A FERRO-ALLOY INSERTING APPARATUS WITH REDUCED ABSORPTION OF OXYGEN AND ABSORPTION OF NITROGEN AND INSERTING METHOD THEREOF
    • 一种具有减少吸收氧气和吸收硝酸的合金插入装置及其插入方法
    • WO2008023863A1
    • 2008-02-28
    • PCT/KR2006/005406
    • 2006-12-12
    • POSCOHONG, Ki KunCHO, Sung WoanLEE, Hee hoKIM, Dong sikPARK, Joo Hyun
    • HONG, Ki KunCHO, Sung WoanLEE, Hee hoKIM, Dong sikPARK, Joo Hyun
    • C21C7/00
    • C21C7/0006C21C5/5264C21C7/0037C21C7/0075C21C2300/06F27D3/16F27D3/18Y02P10/216Y02P10/286
    • The present invention relates to an apparatus for inserting ferro-alloy and inserting method without submerging into slag and liquid steel for reducing absorption of oxygen and absorption of nitrogen capable of inserting ferro-alloy by minimizing an incorporation of oxygen and nitrogen in a ladle treatment process of a steelmaking process upon performing a steelmaking operation, comprising: a supplying tube supplied with ferro-alloy from a hopper to insert it to a ladle and subdivided into an upper part, an inclined middle part, a lower part and having a predetermined hollow; a branched and mounted inert gas blocking unit communicated with the middle of the supplying unit and blocking, as first inert gas, air flowed in at the same time when the ferro-alloy is inserted; a branched and mounted inert gas supplying unit communicated with the base end part of the lower part of the supplying tube and blowing a second inert gas on an inserting path of the ferro-alloy; an inert gas injecting unit packing any one of the lower outer sides of the supplying unit relative to axis direction of the lower thereof and injecting a third inert gas toward the end part of the lower part thereof; and a diffusing unit diffusing the third inert gas injected while packing the supplying tube from the gas injecting unit into the end part of the supplying tube.
    • 本发明涉及一种用于插入铁合金和插入方法的装置,而不浸没在炉渣和液态钢中,用于减少氧吸收和能够通过在钢包处理过程中最小化氧和氮的引入而插入铁合金的氮 包括:从料斗供给铁合金的供给管将其插入钢包中并分为上部,倾斜中间部分和下部,并具有预定的中空部; 一个分支和安装的惰性气体阻断单元,与供应单元的中间连通,并且阻止当铁合金被插入时同时流入的空气作为第一惰性气体; 分支和安装的惰性气体供应单元与供应管的下部的基端部分连通并且在铁合金的插入路径上吹送第二惰性气体; 惰性气体注入单元,其相对于其下方的轴线方向填充供给单元的下侧的外侧,向其下部的端部注入第三惰性气体; 以及扩散单元,其将从所述气体注入单元填充所述供给管时喷射的所述第三惰性气体扩散到所述供给管的端部。
    • 4. 发明申请
    • ELECTRICAL CONNECTOR ASSEMBLY HAVING CONNECTOR POSITION ASSURANCE DEVICE
    • 具有连接器位置保证装置的电连接器组件
    • WO2009047744A2
    • 2009-04-16
    • PCT/IB2008/055333
    • 2008-10-10
    • FCIFCI CONNECTORS SINGAPORE Pte LtdSEO, JU WonPARK, Joo Hyun
    • SEO, JU WonPARK, Joo Hyun
    • H01R13/627
    • H01R13/6272
    • An electrical connector assembly includes a first and a second connectors to be mated together, and a Connector Position Assurance (CPA) device installed on one of the first and second connectors. The CPA device is fixed to a pre-lock position when shipped together with said one of the connectors and before the first and second connectors are mated. At the pre-lock position, a locking lever on the second connector can be deformed so that primary locking members of the first and second connectors can be engaged. When the first and second connectors are mated, a rib formed on the first connector acts on a release member provided on the CPA device, to allow the CPA device to move to a final lock position at which, a secondary locking member restricts the movement of the primary locking member of the second connector to prevent the primary locking members from being disengaged.
    • 电连接器组件包括待配合在一起的第一和第二连接器以及安装在第一和第二连接器之一上的连接器位置保证(CPA)装置。 当与所述连接器中的一个连接在一起并且在第一连接器和第二连接器配合之前,CPA装置被固定到预锁定位置。 在预锁定位置,第二连接器上的锁定杆可以变形,使得第一和第二连接器的主锁定构件可以接合。 当第一连接器和第二连接器配合时,形成在第一连接器上的肋作用在设置在CPA装置上的释放构件上,以允许CPA装置移动到最终锁定位置,在该最终锁定位置处,第二锁定构件限制 第二连接器的主要锁定构件以防止主要锁定构件脱离。
    • 5. 发明申请
    • ELECTRICAL CONNECTOR ASSEMBLY HAVING LOCKING DEVICE
    • 具有锁定装置的电气连接器组件
    • WO2010035247A2
    • 2010-04-01
    • PCT/IB2009/055091
    • 2009-09-18
    • FCIFCI CONNECTORS SINGAPORE Pte LtdPARK, Joo Hyun
    • PARK, Joo Hyun
    • H01R13/639H01R13/629H01R13/64
    • H01R13/62938H01R13/6295
    • An electrical connector assembly includes first and second connectors connectable to each other. The first connector has a first housing and a locking lever detachably and movably coupled thereto. The second connector has a second housing and a pair of protuberances formed on external surface of the second housing. When the locking lever is at an open position, first and second connectors are ready to be connected together. When the locking lever moves away from the open position towards a close position, the first and second connectors are guided by the locking lever to connect together and are prevented from being separated. A pair of stoppers are formed on the locking lever which engages the first housing to lock the lever at the open position. When the second connector is inserted into the first connector, the stoppers are released to allow the locking lever to move towards the close position.
    • 电连接器组件包括可彼此连接的第一和第二连接件。 第一连接器具有可拆卸地且可移动地联接到其上的第一壳体和锁定杆。 第二连接器具有形成在第二壳体的外表面上的第二壳体和一对突起。 当锁定杆处于打开位置时,第一和第二连接器准备连接在一起。 当锁定杆从打开位置向关闭位置移动时,第一和第二连接器由锁定杆引导以连接在一起并防止其分离。 一对止动件形成在锁定杆上,该锁定杆接合第一壳体以将杠杆锁定在打开位置。 当第二连接器插入到第一连接器中时,止动器被释放以允许锁定杆朝向关闭位置移动。