ELECTRON-BEAM WELDED JOINT, STEEL FOR ELECTRON-BEAM WELDING, AND METHOD OF MANUFACTURING THE SAME
    1.
    发明申请
    ELECTRON-BEAM WELDED JOINT, STEEL FOR ELECTRON-BEAM WELDING, AND METHOD OF MANUFACTURING THE SAME 审中-公开
    电子束焊接接头,电子束焊接用钢及其制造方法

    公开(公告)号:US20130189536A1

    公开(公告)日:2013-07-25

    申请号:US13877470

    申请日:2011-10-27

    IPC分类号: B32B15/01

    摘要: A steel for electron-beam welding according to the present invention includes at least C: 0.02% to 0.10%, Si: 0.03% to 0.30%, Mn: 1.5% to 2.5%, Ti: 0.005% to 0.015%, N: 0.0020% to 0.0060%, and O: 0.0010% to 0.0035%, further includes S: limited to 0.010% or less, P: limited to 0.015% or less, and Al: limited to 0.004% or less, with a balance including iron and inevitable impurities. An index value CeEBB obtained by substituting composition of the steel into following Formula 1 falls in the range of 0.42 to 0.65%, the number of oxide having an equivalent circle diameter of 1.0 μm or more is 20 pieces/mm2 or less at a thickness center portion in cross section along the thickness direction of the steel, and the number of oxide containing Ti of 10% or more and having an equivalent circle diameter of not less than 0.05 μm or more and less than 0.5 μm falls in the range of 1×103 to 1×105 pieces/mm2 at the thickness center portion. CeEBB=C+¼Mn+ 1/15Cu+ 1/15Ni+⅕Cr+⅕Mo+⅕V  (Formula 1)

    摘要翻译: 根据本发明的用于电子束焊接的钢包括C:0.02%至0.10%,Si:0.03%至0.30%,Mn:1.5%至2.5%,Ti:0.005%至0.015%,N:0.0020 %至0.0060%,O:0.0010%至0.0035%,进一步包括S:限于0.010%以下,P:限于0.015%以下,Al:限定在0.004%以下,余量包括铁和 不可避免的杂质。 通过用下述式1代替钢的组成而得到的指标值CeEBB落在0.42〜0.65%的范围内,等效圆直径为1.0μm以上的氧化物的数量在厚度中心为20个/ mm 2以下 沿着钢的厚度方向的横截面积,并且含有10%以上且具有不小于0.05mum以上且小于0.5μm的当量圆的氧化物的数量落在1× 厚度中心部分为103〜1×105个/ mm2。 CeEBB = C +¼Mn+ 1 / 15Cu + 1 / 15Ni + 1 / 5Cr + 1 / 5Mo + 1 / 5V(式1)

    Electron-beam welded joint, steel for electron-beam welding, and manufacturing method
    2.
    发明授权
    Electron-beam welded joint, steel for electron-beam welding, and manufacturing method 有权
    电子束焊接接头,电子束焊接用钢及其制造方法

    公开(公告)号:US08623154B2

    公开(公告)日:2014-01-07

    申请号:US13988737

    申请日:2011-10-27

    摘要: An electron-beam welded joint including, by mass %, C: 0.02% to 0.1%, Si: 0.03% to 0.30%, Mn: 1.5% to 2.5%, Ti: 0.005 to 0.015%, N: 0.0020 to 0.0060%, O: 0.0010% to 0.0035%, Nb: 0% to 0.020%, V: 0% to 0.030%, Cr: 0% to 0.50%, Mo: 0% to 0.50%, Cu: 0% to 0.25%, Ni: 0% to 0.50%, B: 0% to 0.0030%, S: limited to 0.010% or less, P: limited to 0.015% or less, Al: limited to 0.004% or less, and a balance consisting of iron and unavoidable impurities, wherein an index value CeEB is 0.49% to 0.60%, a number of oxides having an equivalent circle diameter of 1.0 μm or more is 20 pieces/mm2 or less, and a number of oxides having an equivalent circle diameter of 0.05 μm or more and less than 0.5 μm is 1×103 pieces/mm2 to 1×105 pieces/mm2 at a thickness center portion.

    摘要翻译: 1.一种电子束焊接接头,以质量%计含有C:0.02〜0.1%,Si:0.03〜0.30%,Mn:1.5〜2.5%,Ti:0.005〜0.015%,N:0.0020〜0.0060% O:0.0010〜0.0035%,Nb:0〜0.020%,V:0%〜0.030%,Cr:0〜0.50%,Mo:0〜0.50%,Cu:0〜0.25% 0%〜0.50%,B:0%〜0.0030%,S:限制在0.010%以下,P:0.015%以下,Al:0.004%以下,余量由铁和不可避免的杂质 其中,指数值CeEB为0.49〜0.60%,当量圆直径为1.0μm以上的氧化物数为20个/ mm 2以下,当量圆直径为0.05μm以上的氧化物数 在厚度中心部分,小于0.5μm为1×103个/ mm 2〜1×105个/ mm 2。

    ELECTRON-BEAM WELDED JOINT, STEEL FOR ELECTRON-BEAM WELDING, AND MANUFACTURING METHOD
    3.
    发明申请
    ELECTRON-BEAM WELDED JOINT, STEEL FOR ELECTRON-BEAM WELDING, AND MANUFACTURING METHOD 有权
    电子束焊接接头,电子束焊接用钢和制造方法

    公开(公告)号:US20130279971A1

    公开(公告)日:2013-10-24

    申请号:US13988737

    申请日:2011-10-27

    IPC分类号: B23K35/30

    摘要: An electron-beam welded joint including, by mass %, C: 0.02% to 0.1%, Si: 0.03% to 0.30%, Mn: 1.5% to 2.5%, Ti: 0.005 to 0.015%, N: 0.0020 to 0.0060%, O: 0.0010% to 0.0035%, Nb: 0% to 0.020%, V: 0% to 0.030%, Cr: 0% to 0.50%, Mo: 0% to 0.50%, Cu: 0% to 0.25%, Ni: 0% to 0.50%, B: 0% to 0.0030%, S: limited to 0.010% or less, P: limited to 0.015% or less, Al: limited to 0.004% or less, and a balance consisting of iron and unavoidable impurities, wherein an index value CeEB is 0.49% to 0.60%, a number of oxides having an equivalent circle diameter of 1.0 μm or more is 20 pieces/mm2 or less, and a number of oxides having an equivalent circle diameter of 0.05 μm or more and less than 0.5 μm is 1×103 pieces/mm2 to 1×105 pieces/mm2 at a thickness center portion.

    摘要翻译: 1.一种电子束焊接接头,以质量%计含有C:0.02〜0.1%,Si:0.03〜0.30%,Mn:1.5〜2.5%,Ti:0.005〜0.015%,N:0.0020〜0.0060% O:0.0010〜0.0035%,Nb:0〜0.020%,V:0%〜0.030%,Cr:0〜0.50%,Mo:0〜0.50%,Cu:0〜0.25% 0%〜0.50%,B:0%〜0.0030%,S:限制在0.010%以下,P:0.015%以下,Al:0.004%以下,余量由铁和不可避免的杂质 其中,指数值CeEB为0.49〜0.60%,当量圆直径为1.0μm以上的氧化物数为20个/ mm 2以下,当量圆直径为0.05μm以上的氧化物数 在厚度中心部分,小于0.5μm为1×103个/ mm 2〜1×105个/ mm 2。

    ELECTRON BEAM WELDED JOINT EXCELLENT IN BRITTLE FRACTURE RESISTANCE
    5.
    发明申请
    ELECTRON BEAM WELDED JOINT EXCELLENT IN BRITTLE FRACTURE RESISTANCE 有权
    电子束焊接接头在脆性断裂韧性方面优秀

    公开(公告)号:US20100028717A1

    公开(公告)日:2010-02-04

    申请号:US12442665

    申请日:2007-01-12

    IPC分类号: B32B15/18 B32B15/01

    摘要: To form a welded joint having a sufficiently high fracture toughness value δc by butting welding high strength steel plates having a yield strength of the 355 MPa class or more and a plate thickness of over 50 mm by electron beam welding, the butt welded joint is made one where the hardness of the weld metal is 110% to 220% of the hardness of the base material and where the width of the weld metal is 20%A or less of the base material plate thickness. More preferably, the amount of O in the weld metal of the welded joint is made 20 ppm or more and the amount of oxides of a grain size of 2.0 μm or more is made 10/mm2 or less; the weld metal of the welded joint is made to contain Ni in an amount of 1 to 4 mass % and contain it in more than an amount of 0.2 mass % or more of the content of the base material; or, when using as the base material a steel material containing as Ni in an amount of 2.5 mass % or more, making the content of Ni contained in the weld metal of the welded joint, by mass %, over 4% to 8%.

    摘要翻译: 为了形成具有足够高的断裂韧度值的焊接接头,通过电子束焊接对接焊接强度为355MPa等级或更高的板厚度以及厚度超过50mm的高强度钢板,对接焊接 焊接金属的硬度为基材硬度的110〜220%,焊接金属的宽度为基板厚度的20%A以下的情况。 更优选焊接接头的焊接金属中的O量为20ppm以上,粒径为2.0μm以上的氧化物的量为10 / mm 2以下。 使焊接接头的焊接金属含有1〜4质量%的Ni,并且含有超过基材含量的0.2质量%以上的量。 或者,当将作为Ni的2.5质量%以上的钢材用作基材时,使焊接接头的焊接金属中含有的Ni的含量以质量%计超过4%〜8%。

    BUTT-WELDED JOINT AND METHOD FOR MANUFACTURING SAME
    7.
    发明申请
    BUTT-WELDED JOINT AND METHOD FOR MANUFACTURING SAME 有权
    BUTT焊接接头及其制造方法

    公开(公告)号:US20120237287A1

    公开(公告)日:2012-09-20

    申请号:US13513090

    申请日:2010-12-03

    IPC分类号: B23K15/00

    摘要: A butt-welded joint includes a pair of steel plates, a first weld metal that is formed at a butting portion of the pair of steel plates from a first surface side of the pair of steel plates to a second surface side opposite the first surface side by irradiation of a first high-energy density beam from the first surface side, and a second weld metal that is formed by a second high-energy density beam to cover an end surface of the first surface side of the first weld metal. Here, a width W1 of the first weld metal on the first surface and a width W2 of the second weld metal on the first surface satisfy a following equation (1), and a depth from the first surface of the second weld metal is 2.0 mm to 10.0 mm. 1.2≦W2/W1≦3.5  (1)

    摘要翻译: 对接焊接头包括一对钢板,第一焊接金属,其形成在所述一对钢板的对接部分,从所述一对钢板的第一表面侧到与所述一对钢板的第一表面侧相对的第二表面侧 通过从第一表面侧照射第一高能量密度光束和由第二高能量密度光束形成以覆盖第一焊接金属的第一表面侧的端表面的第二焊接金属。 这里,第一表面上的第一焊接金属的宽度W1和第一表面上的第二焊接金属的宽度W2满足以下等式(1),并且来自第二焊接金属的第一表面的深度为2.0mm 至10.0mm。 1.2≦̸ W2 / W1≦̸ 3.5(1)

    Butt-welded joint and method for manufacturing same
    9.
    发明授权
    Butt-welded joint and method for manufacturing same 有权
    对焊接头及其制造方法

    公开(公告)号:US08653403B2

    公开(公告)日:2014-02-18

    申请号:US13513090

    申请日:2010-12-03

    IPC分类号: B23K15/00

    摘要: A butt-welded joint includes a pair of steel plates, a first weld metal that is formed at a butting portion of the pair of steel plates from a side of a first surface of the butt-welded joint to a side of a second surface opposite the first surface by irradiation of a first high-energy density beam from the side of the first surface, and a second weld metal that is formed by irradiation of a second high-energy density beam to cover an end surface of the first weld metal at the side of the first surface side of the first weld metal. A width W1 of the first weld metal on the first surface and a width W2 of the second weld metal on the first surface satisfy an equation 1.2≦W2/W1≦3.5, and a depth of the second weld metal from the first surface is 2.0 mm to 10.0 mm.

    摘要翻译: 对接焊接头包括一对钢板,第一焊接金属,其形成在所述一对钢板的对接部分处,从所述对接焊接接头的第一表面的一侧到相对的第二表面的一侧 所述第一表面通过从所述第一表面侧照射第一高能量密度束;以及第二焊接金属,其通过第二高能量密度束的照射而形成,以覆盖所述第一焊接金属的端面 第一焊缝金属的第一表面侧的一侧。 第一表面上的第一焊接金属的宽度W1和第一表面上的第二焊接金属的宽度W2满足方程式1.2 @ W2 / W1 @ 3.5,第一焊接金属的第一表面的深度为2.0 mm至10.0 mm。