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    Bonded flux and solid wire for submerged arc welding, and method for submerged arc welding of steel for low temperature service
    2.
    发明公开
    Bonded flux and solid wire for submerged arc welding, and method for submerged arc welding of steel for low temperature service 有权
    烧结粉末的焊丝和埋弧焊实心焊丝和方法，用于钢的低温操作埋弧焊

    公开(公告)号：EP2481515A1

    公开(公告)日：2012-08-01

    申请号：EP12152998.6

    申请日：2012-01-30

    申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

    发明人： Kan, Hou ,  Ota, Makoto ,  Nakanishi, Kohjiroh

    IPC分类号： B23K9/18 ,  B23K35/30 ,  B23K35/36 ,  C22C38/04 ,  B23K35/362

    CPC分类号： B23K35/362 ,  B23K9/186 ,  B23K9/23 ,  B23K35/3053 ,  B23K35/3602 ,  B23K35/3605 ,  B23K35/3607 ,  B23K35/361 ,  B23K2203/04 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/14

    摘要： Disclosed is a bonded flux and a solid wire for submerged arc welding, and a method for submerged arc welding of a low-temperature steel each of which gives a weld bead (weld metal) having excellent low-temperature fracture toughness with satisfactory weldability. The bonded flux includes 23-43% of MgO, 11-31% of Al 2 O 3 , 6-16% of CaF 2 ,7-20°% of SiO 2 , 1.0-8.0% as CO 2 equivalent of a metal carbonate, a total of 2-16% of CaO and/or BaO, 0.4-1.5% of metallic silicon, a total of 1.0-7.0% as titanium equivalent of metallic titanium and titanium oxide, a total of 0.01-0.20% as boron equivalent of metallic boron and/or boron oxide, and a total of 1.0-6.0% as equivalents of respective elements of at least one oxide of Na, K, and Li, and has a ratio ([Total Ti]+[Total B])/[SiO 2 ] of from 0.05 to 0.55.

    摘要翻译： 公开了一种键合的通量和埋弧焊实心焊丝，以及用于低温钢其中的每一个给出了具有令人满意的可焊性优良的低温断裂韧性焊缝（焊接金属）的埋弧焊接的方法。 粘合的焊剂包括的MgO 23-43％以下，Al 2 O 3的11-31％，氟化钙的6-16％，SiO 2为7-20°％，1.0-8.0％为CO 2当量金属碳酸盐的 ，共CaO和/或BaO为2-16％，金属硅的0.4-1.5％，总的1.0-7.0％等同金属钛和氧化钛，共0点01分至0的钛：20％等同硼 金属硼和/或氧化硼，和总共1.0-6.0％的Na，K和Li中的至少一种氧化物的respectivement要素的等同形式，并且具有比（[总的Ti] + [总B]）的 / [SiO 2的]的从12:05到12点55分。