METHOD FOR STARTING A SUBMERGED ARC WELDING PROCESS AND WELDING APPARATUS
    1.
    发明申请
    METHOD FOR STARTING A SUBMERGED ARC WELDING PROCESS AND WELDING APPARATUS 审中-公开
    启动电弧焊接工艺和焊接设备的方法

    公开(公告)号:WO2014067580A1

    公开(公告)日:2014-05-08

    申请号:PCT/EP2012/071685

    申请日:2012-11-02

    Applicant: ESAB AB

    CPC classification number: B23K9/188 B23K9/067 B23K9/073 B23K9/0732 B23K9/186

    Abstract: A method comprising an arc ignition phase (IP), an arc-stabilizing phase (AP) and a stable arc phase (SP). The arc stabilizing phase comprises an initial sub-phase (IS) comprising the step of feeding at least one hot wire (4, 12) at constant feed speed and a main sub-phase (MS) comprising the steps of feeding said hot wire at constant feed speed and feeding at least one cold wire (22) at constant feed speed. The stable arc phase comprises the steps of continuously adjusting the feed speed of the hot wire and continuously adjusting the feed speed of the cold wire. The invention also relates to a welding apparatus (1) for carrying out the method. The welding apparatus comprises a hot wire feeding means (150), a contact means (2), a cold wire feeding means (35) and a control unit (31). The control unit is adapted to control said hot wire feeding means to feed the hot wire at a constant feed speed during the initial sub-phase, feed the hot wire at a constant feed speed during the main sub-phase and to continuously during the stable arc phase adjust the feed speed of the hot wire. The control unit is adapted to control said cold wire feeding means to feed the cold wire at a constant feed speed during the main sub-phase and continuously during the stable arc phase adjust the cold wire feed speed.

    Abstract translation: 一种包括电弧点火相(IP),电弧稳定相(AP)和稳定电弧相(SP)的方法。 电弧稳定阶段包括初始子相(IS),包括以恒定进料速度供给至少一根热丝(4,12)和主亚相(MS)的步骤,包括以下步骤:将所述热丝进料到 进给速度恒定,并以恒定进给速度供给至少一根冷丝(22)。 稳定的电弧阶段包括连续调整热丝的进给速度并连续调节冷丝的进给速度的步骤。 本发明还涉及一种用于实施该方法的焊接设备(1)。 焊接装置包括热丝进给装置(150),接触装置(2),冷丝进给装置(35)和控制单元(31)。 控制单元适于控制所述热丝进给装置,以在初始次相期间以恒定进给速度供给热丝,在主次相期间以恒定进给速度供给热丝,并在稳定期间连续进给 电弧相位调整热丝的进给速度。 控制单元适于控制所述冷丝进给装置,以在主子相期间以恒定进给速度供给冷丝,并且在稳定的电弧相位期间连续地调节冷丝进给速度。

    METHOD OF WELDING STRUCTURAL STEEL AND WELDED STEEL STRUCTURE
    3.
    发明申请
    METHOD OF WELDING STRUCTURAL STEEL AND WELDED STEEL STRUCTURE 审中-公开
    焊接结构钢和焊接钢结构的方法

    公开(公告)号:WO2013140798A2

    公开(公告)日:2013-09-26

    申请号:PCT/JP2013/001898

    申请日:2013-03-21

    Abstract: A method of welding structural steel containing, by mass%, Cr: 1.5 to 3.5%, Mo: 0.5 to 1.5%, and V: 0.15 to 0.5%. It comprises preheating joint of the structural steel to be welded at temperatures of 150 to 250 degrees Celsius; multilayer welding the joint end portions; keeping the interpass temperature of the joint end portions during the multilayer welding at 150 to 350 degrees Celsius; then after welding completion, performing DHT by heat treating the weld zone before cooling down below 150 degrees Celsius under the conditions that the temperature is 250 to 340 degrees Celsius and that the treatment time is 5 to 10 hours.

    Abstract translation: 以质量%计含有Cr:1.5〜3.5%,Mo:0.5〜1.5%,V:0.15〜0.5%的结构钢的焊接方法。 它包括在150至250摄氏度的温度下待焊接的结构钢的预热接头; 多层焊接接头端部; 在多层焊接中将接头端部的层间温度保持在150〜350摄氏度; 然后在焊接完成后,在温度为250-340摄氏度的条件下,并且处理时间为5〜10小时的条件下,在冷却到低于150摄氏度之前对焊接区进行热处理,进行DHT。

    SYSTEMS AND METHODS FOR CONTROLLING AN OUTPUT POWER OF A WELDING POWER SUPPLY
    6.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING AN OUTPUT POWER OF A WELDING POWER SUPPLY 审中-公开
    用于控制焊接电源的输出功率的系统和方法

    公开(公告)号:WO2015138021A1

    公开(公告)日:2015-09-17

    申请号:PCT/US2014/070386

    申请日:2014-12-15

    CPC classification number: B23K9/1006 B23K9/1062 B23K9/186

    Abstract: A method for controlling an output current of a welding power supply includes detecting, using control circuitry of the welding power supply, a root mean square (RMS) current setting. The method also includes calculating, using the control circuitry, an average current command based on the RMS current setting. The method also includes controlling, using the control circuitry, the output current using the average current command to produce an output substantially the same as the RMS current setting.

    Abstract translation: 用于控制焊接电源的输出电流的方法包括使用焊接电源的控制电路检测均方根(RMS)电流设置。 该方法还包括使用控制电路计算基于RMS电流设置的平均电流指令。 该方法还包括使用平均电流指令来控制使用控制电路的输出电流,以产生与RMS电流设置基本相同的输出。

    SYSTEM AND METHOD FOR SUBMERGED ARC WELDING
    8.
    发明申请
    SYSTEM AND METHOD FOR SUBMERGED ARC WELDING 审中-公开
    用于电弧焊接的系统和方法

    公开(公告)号:WO2013148561A1

    公开(公告)日:2013-10-03

    申请号:PCT/US2013/033681

    申请日:2013-03-25

    Abstract: This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system (10) includes a gas supply system (16) configured to provide a gas flow. The system also includes a wire supply system (14) configured to provide welding wire, and a flux supply system (17) configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly (18) configured to receive the gas flow and the welding wire and to deliver the gas flow and the welding wire near the welding arc during SAW.

    Abstract translation: 本公开一般涉及焊接,更具体地,涉及埋弧焊(SAW)。 在一个实施例中,焊接系统(10)包括构造成提供气体流的气体供应系统(16)。 该系统还包括配置成提供焊丝的焊丝供应系统(14),以及被配置为在埋弧焊(SAW)期间在焊接电弧附近提供焊剂的焊剂供给系统。 该系统还包括焊枪组件(18),其构造成接收气流和焊丝,并且在SAW期间将气流和焊丝输送到焊接电弧附近。

    溶接方法および蒸気発生器水室
    9.
    发明申请
    溶接方法および蒸気発生器水室 审中-公开
    焊接方法和蒸汽发生器水箱

    公开(公告)号:WO2013111444A1

    公开(公告)日:2013-08-01

    申请号:PCT/JP2012/080782

    申请日:2012-11-28

    Abstract:  母材(1)の内面(1a)と、母材に形成された開口部(2)の内面(2a)と、母材の内面から開口部の内面に連なり形成される切欠面(R)とに連続して肉盛溶接を行う溶接方法であって、開口部の中心(C)に向けて母材の内面と一様に連続する仮溶接面(3a)を有し、かつ切欠面を埋没してなる突出部(3)を母材に予め成形する工程と、次に、母材の内面および仮溶接面に対して所定幅の帯状を並設する第一肉盛溶接(5)を行う工程と、次に、開口部の内面の輪郭形状に沿うように突出部を第一肉盛溶接の一部とともに切削して切欠面を形成する工程と、次に、開口部の内面および切欠面に対し、第一肉盛溶接と連続するように開口部の内面の輪郭形状に沿って第二肉盛溶接を行う工程とを含む。

    Abstract translation: 一种用于在母材(1)的内表面(1a),形成在贱金属中的开口(2)的内表面(2a)和形成在贱金属(1)中的切割表面(R)上进行连续堆积焊接的焊接方法, 形成为从所述母材的内表面延伸到所述开口的内表面,所述焊接方法包括:首先将具有均匀连续的定位焊接面(3a)的突出部(3)成型的工序, 与基底金属的内表面并且朝向开口的中心(C)延伸并且待切割表面嵌入其中的基底金属上; 接着进行在基体金属的内表面和定位焊接面上配置规定宽度的平行带的第一累积焊接(5)的工序; 接着通过与第一堆积焊接的一部分一起加工突出部分以跟随开口的内表面的轮廓来形成切割表面的过程; 然后沿着开口的内表面的轮廓在开口的内表面和切割面上进行第二累积焊接,以与第一堆积焊接连续的过程。

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