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    STEEL FOR PRODUCING FORGING HAVING BAINITE STRUCTURE AND ITSPRODUCTION
    3.
    发明专利
    STEEL FOR PRODUCING FORGING HAVING BAINITE STRUCTURE AND ITSPRODUCTION 失效

    公开(公告)号：JPH09143620A

    公开(公告)日：1997-06-03

    申请号：JP32231096

    申请日：1996-11-18

    Applicant: ASCOMETAL SA

    Inventor： PICHARD CLAUDE ,  BELLUS JACQUES ,  PIERSON GILLES

    IPC: B21K1/76 ,  C22C38/00 ,  C22C38/22 ,  C22C38/32 ,  C22C38/58

    Abstract: Steel for forging comprises by weight 0.05-0.12 (0.05-0.08)%, carbon, 0.1-0.45 (0.15-0.35)% Si, 1.01-1.8 (1.01-1.35)% Mn, 0.15-1.15 (0.8-1.15)% Cr, 0.06-0.12 (0.08-0.11)% Mo, up to 0.30% each of copper and nickel, 0.01-0.04% titanium, 0.005-0.04% aluminium, 0.006-0.013% nitrogen, 0.0005-0.004% boron, up to 0.025 % phosphorous, 0.02-0.1% sulphur, up to 0.1% lead and up to 0.07% tellurium, optionally 0.002-0.002% calcium and the remainder iron and incidental impurities. The sum of Ni, Mo and Cu falls in the range 0.2-0.07%, and there is at least 0.005% of non-combined B at above 950 degrees C. Also claimed are a forging method and a forged piece of the steel exhibiting certain mechanical characteristics.

    STEEL FOR MECHANICAL PARTS, METHOD FOR PRODUCING MECHANICAL PARTS FROM SAID STEEL AND THE THUS OBTAINABLE MECHANICAL PARTS
    4.
    发明申请
    STEEL FOR MECHANICAL PARTS, METHOD FOR PRODUCING MECHANICAL PARTS FROM SAID STEEL AND THE THUS OBTAINABLE MECHANICAL PARTS 审中-公开
    机械部件钢，从钢铁生产机械部件的方法和可获得的机械部件

    公开(公告)号：WO2005098070A3

    公开(公告)日：2006-10-05

    申请号：PCT/FR2005000684

    申请日：2005-03-21

    Applicant: ASCOMETAL SA ,  DAGUIER PASCAL ,  DIERICKX PIERRE ,  PICHARD CLAUDE

    Inventor： DAGUIER PASCAL ,  DIERICKX PIERRE ,  PICHARD CLAUDE

    IPC: C22C38/22 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/20 ,  C22C38/26 ,  C22C38/60 ,  C23C8/22 ,  C23C8/32

    CPC classification number: C22C38/02 ,  C22C38/001 ,  C22C38/04 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/60

    Abstract: The inventive steel for mechanical parts is characterised by the composition thereof expressed in the following percentages by weight: 0.19 % = C = 0.25 %; 1.1 % = Mn = 1.5 %; 0.8 % = Si = 1.,2 %; 0.01 % = S = 0.09 %; traces = P = 0.025 %; traces = Ni = 0.25 %; 1 % = Cr = 1.4 %; 0.10 % = Mo = 0,25 %; traces = Cu = 0.30 %; 0.01 % = Al = 0.045 %; 0.010 % = Nb = 0.045 %; 0.0130 % = N = 0.0300 %; optionally traces = Bi = 0.10 % and/or traces = Pb = 0.12 % and/or traces = Te = 0.015 % and/or traces = Se = 0.030 % and/or traces = Ca = 0.0050 %. The rest being iron and impurities resulting from preparation, a chemical composition being adjusted in such a way that mean values J 3m , J 11m , J 15m et J 25m of five Jominy tests are such as a = | J 11m - J 3m x 14/22 - J 25m x 8/22 |= 2.5 HRC; and ß = J 3m - J 15m = 9 HRC. A method for producing a mechanical part from said steel and the thus obtainable mechanical part are also disclosed.

    Abstract translation: 用于机械部件的本发明钢的特征在于其组成以下列重量百分比表示：0.19％= C = 0.25％; 1.1％= Mn = 1.5％; 0.8％= Si = 1..2％; 0.01％= S = 0.09％; 痕量= P = 0.025％; 痕量= Ni = 0.25％; 1％= Cr = 1.4％; 0.10％= Mo = 0.25％; 痕量= Cu = 0.30％; 0.01％= Al = 0.045％; 0.010％= Nb = 0.045％ 0.0130％= N = 0.0300％; 可选的迹线= Bi = 0.10％和/或迹线= Pb = 0.12％和/或迹线= Te = 0.015％和/或迹线= Se = 0.030％和/或迹线= Ca = 0.0050％。 其余为铁和由制备产生的杂质，化学成分以这样的方式调节，即平均值J 3m，J 11m，J 15m / 五个Jominy测试中的等于25m 如a = | J 11m - J 3m x 14/22 -J 25m x 8/22 | = 2.5HRC; 并且ß= J 3m -J 15m = 9 HRC。 还公开了从所述钢和由此获得的机械部件制造机械部件的方法。

    8.
    发明专利
    未知

    公开(公告)号：DK0851038T4

    公开(公告)日：2008-01-02

    申请号：DK97402978

    申请日：1997-12-10

    Applicant: ASCOMETAL SA

    Inventor： PICHARD CLAUDE

    IPC: C21D7/02 ,  C22C38/14 ,  C21C5/00 ,  C21D8/00 ,  C21D8/02 ,  C21D8/06 ,  C22C38/00 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/60

    Abstract: Steel contains by weight 0.03-0.16% carbon, 0.5-2% manganese, 0.05-0.5% silicon, 0-1.8% chromium, 0-0.25% molybdenum, 0.001-0.05% aluminium, 0.001-0.05% titanium, 0-0.15% vanadium, 0.0005-0.005% boron, 0.004-0.012% nitrogen and 0.001-0.09% sulphur, optionally also up to 0.005% calcium, 0.01% tellurium, 0.04% selenium and 0.3% lead and the rest iron and impurities. Proportions are governed by the following: Mn+0.9 Cr+1.3 Mo+1.6 V=at least 2.2%, and Al+Ti=at least 3.5 N. Also claimed are a hot-rolled semi-product of the steel with a bainitic structure and processes wherein pieces of the steel are hot-rolled, cut to size and then cold-formed, a bainitic structure being conferred by heating above 940 deg. C and quenching, either during and after hot-rolling or after cold-forming, also pieces of steel so formed.

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