Steels product reduced in amount of alumina cluster
    1.
    发明申请
    Steels product reduced in amount of alumina cluster 有权
    钢产品减少氧化铝簇数量

    公开(公告)号:US20060260719A1

    公开(公告)日:2006-11-23

    申请号:US10521950

    申请日:2003-07-22

    IPC分类号: C22C38/00

    摘要: A steel having few alumina clusters prepared by casting liquid steel deoxidized with Al, with the addition of one or more rare-earth metals (REM) selected from the group of Ce, La, Pr and Nd in which: (a) The REM-oxide-content in oxide-based inclusions consisting mainly of alumina and REM-oxides is 0.5 to 15 mass % of said oxide-based inclusions, or (b) The mass ratio of total REM to total oxygen (T.O.), REM/T.O., in liquid steel is not less than 0.05 and not more than 0.5, in addition to (a), or (c) The total REM-content is not less than 0.1 ppm and less than 10 ppm and the dissolved-REM-content is less than 1 ppm.

    摘要翻译: 通过添加选自Ce,La,Pr和Nd的一种或多种稀土金属(REM),通过浇铸用Al脱氧的钢液制备的具有少量氧化铝簇的钢,其中:(a)REM- 主要由氧化铝和REM氧化物组成的氧化物系夹杂物中的氧化物含量为0.5〜15质量%的所述氧化物系夹杂物,或(b)总REM与总氧化物(TO)的质量比REM / TO, 在液态钢中,除(a)或(c)以外,不低于0.05且不大于0.5,REM总量不小于0.1ppm且小于10ppm,并且REM含量少 超过1 ppm。

    Steels with few alumina clusters
    2.
    发明授权
    Steels with few alumina clusters 有权
    少量氧化铝簇的钢

    公开(公告)号:US07776162B2

    公开(公告)日:2010-08-17

    申请号:US10521950

    申请日:2003-07-22

    IPC分类号: C22C38/06 C21C7/06

    摘要: A steel having few alumina clusters prepared by casting liquid steel deoxidized with Al, with the addition of one or more rare-earth metals (REM) selected from the group of Ce, La, Pr and Nd in which: (a) The REM-oxide-content in oxide-based inclusions consisting mainly of alumina and REM-oxides is 0.5 to 15 mass % of said oxide-based inclusions, or (b) The mass ratio of total REM to total oxygen (T.O.), REM/T.O., in liquid steel is not less than 0.05 and not more than 0.5, in addition to (a), or (c) The total REM-content is not less than 0.1 ppm and less than 10 ppm and the dissolved-REM-content is less than 1 ppm.

    摘要翻译: 通过添加选自Ce,La,Pr和Nd的一种或多种稀土金属(REM),通过浇铸用Al脱氧的钢液制备的具有少量氧化铝簇的钢,其中:(a)REM- 主要由氧化铝和REM氧化物组成的氧化物系夹杂物中的氧化物含量为0.5〜15质量%的所述氧化物系夹杂物,或(b)总REM与总氧化物(TO)的质量比REM / TO, 在液态钢中,除(a)或(c)以外,不低于0.05且不大于0.5,REM总量不小于0.1ppm且小于10ppm,并且REM含量少 超过1 ppm。

    Twin roll-type sheet continuous casting method and apparatus
    3.
    发明授权
    Twin roll-type sheet continuous casting method and apparatus 失效
    双辊式连续铸造方法及装置

    公开(公告)号:US5350009A

    公开(公告)日:1994-09-27

    申请号:US971922

    申请日:1992-12-21

    CPC分类号: B22D11/0622

    摘要: A twin roll-type sheet continuous casting apparatus includes a nozzle for supplying molten metal; a pair of casting rolls for casting the molten metal supplied from the nozzle into a sheet, the casting rolls being horizontally disposed in parallel relation to each other, being cooled, and rotated in opposite directions, respectively; a coiler; and a support sheet extending generally horizontally below the pair of casting rolls for receiving the cast sheet and transferring it to the coiler, and being taken up by the coiler along with the cast sheet placed therein. Since tension is not applied to the cast sheet, even a brittle material can be continuously cast into a sheet. Also, a dummy sheet requested for starting the casting of the sheet becomes unnecessary, and even when a rupture of the sheet occurs, the apparatus can be continuously operated without stopping the operation.

    摘要翻译: PCT No.PCT / JP92 / 00483 Sec。 一九九二年十二月二十一日 102(e)日期1992年12月21日PCT提交1992年4月16日PCT公布。 WO92 / 18272 PCT出版物 1992年10月29日。双辊式连续铸造设备包括用于供应熔融金属的喷嘴; 一对铸造辊,用于将从喷嘴供给的熔融金属铸造成片材,将铸造辊彼此平行地水平设置,分别冷却并沿相反方向旋转; 卷取机 以及大致水平地延伸在一对铸辊下方的支撑片,用于接收铸造片并将其传送到卷取机,并且被卷取机与放置在其中的铸造片一起被卷取。 由于不对铸片施加张力,因此即使脆性材料也可以连续铸造成片材。 此外,不需要用于开始片材的铸造的虚拟片材,并且即使当片材的破裂发生时,可以在不停止操作的情况下连续地操作该装置。

    Method of manufacturing an austenitic stainless steel sheet and a
manufacturing system for carrying out the same
    5.
    发明授权
    Method of manufacturing an austenitic stainless steel sheet and a manufacturing system for carrying out the same 失效
    奥氏体不锈钢板的制造方法及其制造方法

    公开(公告)号:US5284535A

    公开(公告)日:1994-02-08

    申请号:US743366

    申请日:1991-08-19

    IPC分类号: B22D11/06 C21D8/02

    CPC分类号: C21D8/0205 B22D11/0622

    摘要: A method of manufacturing an austenitic stainless steel sheet having reduced minute surface concavities and convexties ropings and gloss unevenness and a manufacturing system for carrying out the same are provided. The method comprises (a) a casting process of casting a molten austenitic (.gamma.) stainless steel into a thin cast plate by a twin-roll thin plate casting method employing a pair of cooled rolls disposed opposite to each other, (b) a cooling process of cooling the cast thin plate in a single phase state of the .gamma. phase, (c) a cast plate in a dual phase state of the .delta. and .gamma. phase or a single phase state of the .delta. phase and then cooling the thin cast plate to restore the single phase state of the .gamma. phase, and (d) a cold-rolling process of cold-rolling the heat-treated thin cast plate.

    摘要翻译: PCT No.PCT / US90 / 01665 Sec。 371日期1991年8月19日 102(e)日期1991年8月19日PCT 1990年12月20日PCT PCT。 出版物WO91 / 09144 日期:1991年6月27日。一种制造具有减小的微小表面凹凸和粗糙度的奥氏体不锈钢板的方法和光泽不均匀性及其制造方法。 该方法包括(a)通过使用彼此相对设置的一对冷却辊的双辊薄板铸造方法将熔融奥氏体((γ))不锈钢铸造成薄铸造板的铸造工艺,(b) 在(γ)相的单相状态下冷却铸造薄板的冷却过程,(c)处于(delta)和(γ)相的双相状态或(γ相)的单相状态的 delta)相,然后冷却薄铸造板以恢复(γ)相的单相状态,(d)冷轧热处理的薄铸造板的冷轧过程。

    Thin cast strip and thin steel sheet of common carbon steel containing
large amounts of copper and tin and process for producing the same
    6.
    发明授权
    Thin cast strip and thin steel sheet of common carbon steel containing large amounts of copper and tin and process for producing the same 失效
    薄铸钢带和含有大量铜和锡的普通碳钢薄钢板及其制造方法

    公开(公告)号:US5662748A

    公开(公告)日:1997-09-02

    申请号:US325321

    申请日:1994-11-25

    IPC分类号: C22C38/16 B22D11/00

    CPC分类号: C22C38/16

    摘要: The present invention provides a thin cast strip or a thin steel sheet having good cast strip properties and mechanical properties from a molten steel containing a large amount of iron scrap containing Cu and Sn. The thin cast strip or thin steel sheet is characterized by being a thin cast strip or thin steel sheet of a common carbon steel comprising 0.15 to 10% by weight of Cu and 0.03 to 0.5% by weight of Sn, the primary dendrite spacing on a surface layer portion being in the range of from 5 to 100 .mu.m.

    摘要翻译: PCT No.PCT / JP94 / 00313 Sec。 371日期:1994年11月25日 102(e)日期1994年11月25日PCT 1994年2月25日PCT PCT。 WO94 / 19503 PCT出版物 日本1994年9月1日本发明提供一种含有大量含有Cu和Sn的废铁的钢水的铸造带性能和机械性能优良的薄铸造带材或薄钢板。 薄铸钢带或薄钢板的特征在于,是普通碳钢的薄铸造带材或薄钢板,其包含0.15至10重量%的Cu和0.03至0.5重量%的Sn,其中主要的枝晶间距 表层部分在5-100μm的范围内。

    Fe-Cu alloy sheet having an alloy structure of high uniformity
    7.
    发明授权
    Fe-Cu alloy sheet having an alloy structure of high uniformity 失效
    具有高均匀性的合金结构的Fe-Cu合金板

    公开(公告)号:US5445686A

    公开(公告)日:1995-08-29

    申请号:US252424

    申请日:1994-06-01

    IPC分类号: C22C9/00 C22C38/16 C22C38/20

    CPC分类号: C22C38/16 C22C38/20 C22C9/00

    摘要: An Fe-Cu alloy sheet manufactured by a thin plate continuous casting method so as to be used as a material of electronic and magnetic parts. The alloy sheet has an alloy structure of high uniformity which contains 20 to 90% Cu, 1 to 10% Cr, 0 to 10% Mo, and one or more of alloying elements selected from the group consisting of Al, Sc, Y, La, Si, Ti, Zr and Hf whose amount or total amounts are not less than a calcualtion value of the following equation and not more than 10%, the balance being essentially Fe: ##EQU1## wherein .alpha.=1,.beta.=51-(%Cu) (in the case where Cu=20 to 50%),.beta.=-19 +0.4 (% Cu) (in the case where Cu=50 to 90%).Boron and/or carbon take substantially the same effects as the above-mentioned elements such as Al.

    摘要翻译: 一种通过薄板连续铸造方法制造的Fe-Cu合金板,以用作电子和磁性部件的材料。 合金板具有高均匀性的合金结构,其含有20〜90%的Cu,1〜10%的Cr,0〜10%的Mo,以及选自Al,Sc,Y,La中的一种或多种合金元素 ,Si,Ti,Zr和Hf,其量或总量不小于下式的计算值且不大于10%,余量基本上为Fe:其中α= 1,β= 51-( %Cu)(在Cu = 20〜50%的情况下),β= -19±0.4(%Cu)(Cu = 50〜90%的情况)。 硼和/或碳基本上具有与上述元素如Al相同的效果。

    Process for producing thin sheet by continuous casting in twin-roll
system
    8.
    发明授权
    Process for producing thin sheet by continuous casting in twin-roll system 失效
    通过双辊系统连续铸造生产薄片的方法

    公开(公告)号:US5439046A

    公开(公告)日:1995-08-08

    申请号:US107693

    申请日:1993-08-18

    IPC分类号: B22D11/06 B22D27/02

    CPC分类号: B22D11/0662

    摘要: In a continuous casting process in a twin-roll system, a gap is provided between end faces of cooling rolls and side gates or between the circumferential surface of the cooling rolls and side faces of the side gates. A DC magnetic field is applied to the molten metal in a pouring basin in the vicinity of the side gates in a vertical direction to the molten metal and direct current (DC) is intensively fed to the end portion of the molten metal to generate an electromagnetic force mainly at a corner portion of the molten metal. The electromagnetic force is directed toward the center portion of the molten metal, and thereby prevents leakage of molten metal from the gap, penetration into the gap or the formation of hot bands. In order to intensively feed the direct current to the end portion of the molten metal, an electrode is placed in sliding contact with the end face of the cooling roll. Moreover, a good electrical conductor may be provided on an insulating portion provided on the end face of the cooling roll, or a good electric conductor may be embedded in the side gates.

    摘要翻译: PCT No.PCT / JP92 / 01668 Sec。 371日期:1993年8月18日 102(e)日期1993年8月18日PCT 1992年12月18日PCT PCT。 公开号WO93 / 11893 日期:1993年6月24日。在双辊系统的连续铸造工艺中,在冷却辊和侧浇口的端面之间或冷却辊的圆周表面和侧浇口的侧面之间设置间隙。 在垂直于熔融金属的方向上在侧浇口附近的倾倒盆中的熔融金属上施加DC磁场,并且将直流电(DC)集中供给到熔融金属的端部,以产生电磁 主要在熔融金属的拐角处施加力。 电磁力指向熔融金属的中心部分,从而防止熔融金属从间隙泄漏,渗入间隙或形成热带。 为了将直流集中供给到熔融金属的端部,电极被放置成与冷却辊的端面滑动接触。 此外,可以在设置在冷却辊的端面上的绝缘部分上设置良好的导体,或者可以在侧门中嵌入良好的导电体。

    Method of melt-removing impurity elements from iron
    9.
    发明授权
    Method of melt-removing impurity elements from iron 失效
    从铁中去除杂质元素的方法

    公开(公告)号:US06368380B1

    公开(公告)日:2002-04-09

    申请号:US09539998

    申请日:2000-03-30

    IPC分类号: C21C704

    摘要: An iron scrap having a composition comprising iron and iron-soluble elements in the sum of 100 mass %, and containing Cu, elements of the Groups IIIa, VIII, Ib, IIb, IIIb, IVb and Vb having affinity with Cu, and unavoidable impurities, is melted in an oxygen-containing atmosphere. A predetermined amount of C, and whenever necessary, a predetermined amount of at least one of Cr and Mo and/or a predetermined amount of at least one of Mn, V and Ti, are added to the molten steel. The molten iron is then separated into an Fe-enriched layer and a Cu-enriched layer under the molten state. Cu and the above elements having affinity with Cu are separated and precipitated into the Cu-enriched layer by utilizing the difference of the specific gravity between the layers. According to this method, impurity elements detrimental to the stable production of a steel material having a homogeneous property, such as Cu, Sn, etc., can be removed economically and efficiently when the iron scrap is recycled.

    摘要翻译: 具有100质量%的铁和铁溶性元素的组成的铁屑,含有Cu,与Cu具有亲和性的IIIa,VIII,Ib,IIb,IIIb,IVb和Vb族的元素,以及不可避免的杂质 在含氧气氛中熔融。 预定量的C,并且必要时,将预定量的Cr和Mo中的至少一种和/或预定量的至少一种Mn,V和Ti加入钢水中。 然后将铁水在熔融状态下分离成富铁层和富Cu层。 Cu和上述与Cu具有亲和性的元素通过利用层之间的比重差而分离并沉淀到富含Cu的层中。 根据该方法,当铁废料再循环时,可以经济有效地去除对于具有均匀性质的钢材的稳定生产有害的杂质元素,例如Cu,Sn等。

    Method for controlling solidification segregation of steel
    10.
    发明授权
    Method for controlling solidification segregation of steel 失效
    钢的凝固偏析控制方法

    公开(公告)号:US4809765A

    公开(公告)日:1989-03-07

    申请号:US201370

    申请日:1988-05-27

    IPC分类号: B22D11/124 C21D1/84 B22D11/22

    CPC分类号: C21D1/84 B22D11/124

    摘要: In a method for controlling solidification segregation in casting of carbon steel containing 0.53 wt. % or less of carbon, .alpha.-phase stabilizing elements and .gamma.-phase stabilizing elements of the carbon steel are separated from each other at inter-dendritic portions by adding 2 wt. % or less of at least one element selected from the group consisting of Be, Cr, Nb, Sn, Ti, Mo, and V into the molten steel.

    摘要翻译: 在含有0.53重量%的碳钢的铸造中控制凝固偏析的方法中, 通过添加2重量%的碳钢,α-相稳定化元素和γ相稳定元素的百分比或更少,在枝晶间部分彼此分离。 将选自Be,Cr,Nb,Sn,Ti,Mo和V中的至少一种元素的含量选择为%以下。