Roll for hot rolling having enhanced abrasion resistance and reduced
carbide segregation
    1.
    发明授权
    Roll for hot rolling having enhanced abrasion resistance and reduced carbide segregation 失效
    具有增强的耐磨性和降低的碳化物偏析的热轧辊

    公开(公告)号:US6095957A

    公开(公告)日:2000-08-01

    申请号:US011152

    申请日:1998-01-29

    IPC分类号: B21B27/00 B32B15/01 B23P15/00

    CPC分类号: B21B27/00 B32B15/011

    摘要: High-quality high-speed steel roll which is markedly excellent in abrasion resistance and free of carbide segregation even in the case of production by centrifugal casting of economical benefit; it comprises an outer layer containing, by all weight ratios, C; 2.4-2.9%, Si; not more than 1%, Mn; not more than 1%, Cr; 12-18%, Mo; 3-9%, V; 3-8% and Nb; 0.5-4%, and meeting with the following equations (1) and (2) at one time,0.27.gtoreq.Mo (%)/Cr (%).ltoreq.0.7 (1)C (%)+0.2.multidot.Cr (%).ltoreq.6.2 (2)the outer layer further containing as the balance Fe and unavoidable impurities.

    摘要翻译: PCT No.PCT / JP97 / 02062 Sec。 371日期1998年1月29日 102(e)日期1998年1月29日PCT提交1997年6月16日PCT公布。 出版物WO97 / 48505 日期1997年12月24日即使在离心铸造生产的经济效益的情况下,耐磨性显着优异且没有碳化物偏析的高品质高速钢辊; 它包括一个外层,其中所有的重量比都是C; 2.4-2.9%,Si; 不超过1%,Mn; 不超过1%,Cr; 12-18%,Mo; 3-9%,V; 3-8%和Nb; 0.5-4%,并同时符合下列公式(1)和(2):0.27> / = Mo(%)/ Cr(%)

    Centrifugal cast roll shell material
    2.
    发明授权
    Centrifugal cast roll shell material 失效
    离心铸辊外壳材质

    公开(公告)号:US5738734A

    公开(公告)日:1998-04-14

    申请号:US737070

    申请日:1996-10-29

    CPC分类号: C22C37/06 B21B27/00

    摘要: A centrifugal cast roll shell material composed of a granular MC carbide, graphite and C: 2.5 to 4.7%, Si: 0.8 to 3.2%, Mn: 0.1 to 2.0%, Cr: 0.4 to 1.9%, Mo: 0.6 to 5%, V: 3.0 to 10.0% and Nb: 0.6 to 7.0%, satisfying the following formulae (1), (2), (3) and (4): 2.0+0.715 V+0.10 Nb.ltoreq.C (%) (1) 1.1.ltoreq.Mo/Cr (2) Nb/V.ltoreq.0.8 (3) 0.2.ltoreq.Nb/V (4), the remainder being Fe and inevitable impurities, wherein the pouring temperature is 1,400.degree. C. or higher.

    摘要翻译: PCT No.PCT / JP96 / 00544 Sec。 371日期1996年10月29日第 102(e)日期1996年10月29日PCT 1996年3月6日PCT公布。 公开号WO96 / 27688 日期1996年9月12日由粒状MC碳化物,石墨和C:2.5〜4.7%,Si:0.8〜3.2%,Mn:0.1〜2.0%,Cr:0.4〜1.9%,Mo: 0.6〜5%,V:3.0〜10.0%,Nb:0.6〜7.0%,满足下式(1),(2),(3)和(4):2.0 + 0.715 V + 0.10 Nb < (%)(1)1.1

    Method of manufacturing roll for hot rolling
    3.
    发明授权
    Method of manufacturing roll for hot rolling 失效
    制造轧制辊的方法

    公开(公告)号:US5839495A

    公开(公告)日:1998-11-24

    申请号:US932691

    申请日:1997-09-18

    摘要: A roll outer layer material for hot rolling includes, as analyzed in weight percent, of 2.5-4.0% C, 6.0-20% Cr, 3.0-10.0% V, 0.6-5.0% Nb, 2.0-15% Mo, 3.0% or below Si, 3.0% or below Mn, C, V, Nb and Cr satisfying a following formula (1), 10.5(%).ltoreq.6.5.C(%)-1.3.V(%)-0.7.Nb(%).ltoreq.2.Cr(%)-2(%)(1) , and the balance being Fe and incidental impurities. A method of manufacturing a roll for hot rolling includes the steps of centrifugally casting an outer layer material having the above composition, centrifugally casting graphite steel containing 0.5% or above of C as an intermediate layer, and casting an axis material which is a spheroidal graphite cast iron, a flake graphite cast iron or a graphite steel. C is present in the intermediate layer in an amount which satisfies a following formula (2), C (intermediate layer).gtoreq.2.0-0.5 (C-0.2 V-0.11 Nb)(outer layer)(2)

    摘要翻译: 用于热轧的辊外层材料包括如重量百分比为2.5-4.0%C,6.0-20%Cr,3.0-10.0%V,0.6-5.0%Nb,2.0-15%Mo,3.0%或 低于Si,3.0%以下的Mn,C,V,Nb和Cr满足下​​式(1),10.5(%)≤6.5.C(%)-1.3.V(%)-0.7。Nb(% ) / = 2.0-0.5(C-0.2V-0.11 Nb)(外层)(2)的量存在于中间层中。

    Roll outer layer material for hot rolling and method of manufacturing
roll for hot rolling
    4.
    发明授权
    Roll outer layer material for hot rolling and method of manufacturing roll for hot rolling 失效
    轧制热轧用外层材料及制造轧制方法

    公开(公告)号:US5674171A

    公开(公告)日:1997-10-07

    申请号:US494971

    申请日:1995-06-26

    摘要: A roll outer layer material for hot rolling consists essentially, as analyzed in weight percent, of 2.5-4.0% C, 6.0-20% Cr, 3.0-10.0% V, 0.6-5.0% Nb, 2.0-15% Mo, 3.0% or below Si, 3.0% or below Mn, C, V, Nb and Cr satisfying a formula where 10.5.ltoreq.6.5.C(%)--1.3.V(%)--0.7.Nb(%).ltoreq.2.Cr(%)--2, and the balance being Fe and incidental impurities. A method of manufacturing a roll for hot rolling comprises the steps of centrifugally casting an outer layer material having the above composition, centrifugally casting graphite steel containing 0.5% or above of C as an intermediate layer, and casting an axis material which is a spheroidal graphite cast iron, a flake graphite cast iron or a graphite steel. Carbon is present in the intermediate layer in an amount which satisfies a formula, C (intermediate layer).gtoreq.2.0-0.5�C(%)--0.2.V(%)--0.11.Nb(%)! (outer layer).

    摘要翻译: 用于热轧的辊外层材料基本上按重量百分比分析为2.5-4.0%C,6.0-20%Cr,3.0-10.0%V,0.6-5.0%Nb,2.0-15%Mo,3.0% 或低于Si,3.0%以下的Mn,C,V,Nb和Cr满足下​​式:其中10.5 / = 2.0-0.5 [C(%)-0.2.V(%) - 0.11.Nb(%)](外层)的量存在于中间层中, 。