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公开(公告)号：EP3225346A1
公开(公告)日：2017-10-04
申请号：EP15862715.8
申请日：2015-07-31
CPC分类号： B23K9/23 , B23K9/02 , B23K9/032 , B23K9/0953 , B23K9/0956 , B23K2201/18 , B23K2203/04 , C22C18/04 , C23C2/06 , F16B5/08
摘要： Provided are: an arc welding method that suppresses occurrences of blow holes in initial parts and final parts in a Zn plated steel sheet and reduces the occupancy ratio for blow holes in the welded part as a whole; and a welded joint. An arc welding method for a Zn plated steel sheet sets the gap between plates to 0.2 - 1.5 mm and includes a first step for moving a welding means from a welding initiation point at a first welding speed and performing welding by applying a first welding heat input, a second step following the first step for moving the welding means at a second welding speed and performing welding by applying a second welding heat input, and a third step following the second step for stopping the movement of the welding means and performing welding for 0.1 - 2 seconds at that stopped position. The first step includes welding performed on a welding unit under conditions wherein the first welding speed is less than the second welding speed and the first welding input heat exceeds the second welding input heat. In the third step, welding is performed at a welding current and a welding voltage lower than those in the second step.
摘要翻译： 本发明提供一种电弧焊接方法，该电弧焊接方法抑制镀Zn钢板的初始部和最终部的气孔的产生，并且降低焊接部整体的气孔占有率。 和焊接接头。 用于镀Zn钢板的电弧焊接方法将板之间的间隙设定为0.2-1.5mm，并且包括第一步骤和第二步骤，第一步骤使焊接装置以第一焊接速度从焊接开始点移动并且通过施加第一焊接热量输入 在第一步骤之后的第二步骤，用于以第二焊接速度移动焊接装置并且通过施加第二焊接热量输入来执行焊接，以及第二步骤之后的第三步骤用于停止焊接装置的移动并且执行焊接0.1 - 在停止位置2秒。 第一步骤包括在第一焊接速度小于第二焊接速度并且第一焊接输入热量超过第二焊接输入热量的条件下在焊接单元上执行的焊接。 在第三步骤中，以低于第二步骤中的焊接电流和焊接电压进行焊接。
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公开(公告)号：EP2682495B1
公开(公告)日：2019-01-02
申请号：EP12752196.1
申请日：2012-02-28
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公开(公告)号：EP2862662A1
公开(公告)日：2015-04-22
申请号：EP13803668.6
申请日：2013-05-22
CPC分类号： B23K9/23 , B23K9/173 , B23K35/004 , B23K35/38 , B23K35/383 , B32B15/013 , C22C18/00 , C22C18/04 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C23C2/06
摘要： [Problem] To provide excellent liquid metal embrittlement cracking resistance to an arc-welded structural member using a Zn-Al-Mg based alloy coated steel plate member without restriction of the species of steel for a base steel for coating and without much increase in cost.
[Solution to Problem] In a method for producing an arc-welded structural member containing a step of joining steel members by gas-shielded arc-welding to manufacture a welded structural member, at least one of the members to be joined is a hot dip Zn-Al-Mg based alloy coated steel plate member, and a shielding gas is a gas that is based on an Ar gas, a He gas or an Ar-He mixed gas and has a CO 2 concentration C CO2 (% by volume) satisfying the following expression (2) in relation to a welding heat input Q (J/cm):摘要翻译： 为了对使用Zn-Al-Mg系合金涂层钢板构件的电弧焊接结构构件提供优异的液态金属脆化抗裂性，而不限制用于涂层的基础钢的钢种，并且不增加成本 。 [问题的解决方案]在一种电弧焊结构件的制造方法中，包括通过气体保护电弧焊将钢构件接合的步骤来制造焊接结构构件，至少一个要接合的构件是热浸 Zn-Al-Mg基合金涂层钢板构件，保护气体是基于Ar气体，He气体或Ar-He混合气体并具有CO 2浓度CCO 2（体积％）的气体， 满足以下表达式（2）相对于焊接热输入Q（J / cm）：
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4.发明公开METHOD FOR LASER WELDING OF MATERIALS WITH DIFFERENT THICKNESSES AND WELDED MEMBER HAVING DIFFERENT THICKNESSES PRODUCED BY SAID METHOD 审中-公开激光焊接具有不同厚度的材料的方法以及通过所述方法产生的具有不同厚度的焊接构件
公开(公告)号：EP3184231A1
公开(公告)日：2017-06-28
申请号：EP15843959.6
申请日：2015-06-01
IPC分类号： B23K26/21
CPC分类号： B23K26/26 , B23K26/21 , B23K26/242 , B23K26/32
摘要： Provided is a laser welding method of materials having different thicknesses that can achieve excellent weld strength regardless of the thickness of a thick plate, and a welded member having different thicknesses. That is, the present invention is characterized by a laser welding method of materials having different thicknesses, including: abutting two plates (10), (12) having different thicknesses such that one surface of the plate (10) and one surface the plate (12) are made flush with each other; and thereafter welding the plates (10), (12) by applying a laser beam (14) to abutting surfaces thereof, wherein the laser beam (14) is made incident obliquely from the flush surface of the thin plate (10) toward an abutting end face (12a) of the thick plate (12), a target position (P) of the laser beam (14) is set on the abutting end face (12a) of the thick plate (12), and a target position depth D in the plate from a surface thereof on the incident side of the laser beam (14) is set within a range of the following expression (1), t/3 ≤ D ≤ t ...(1) (where t is a thickness, in a planar direction, of an abutting end face (10a) of the thin plate (10), and D and t are both given in mm).
摘要翻译： 本发明提供一种激光焊接方法，不管厚板的厚度如何，厚度不同的焊接部件，均能够实现焊接强度优异的厚度不同的材料的激光焊接方法。 也就是说，本发明的特征在于激光焊接方法具有不同厚度的材料，包括：邻接具有不同厚度的两个板（10），（12），使得板（10）的一个表面和板的一个表面（ 12）彼此齐平; 然后通过将激光束（14）施加到其邻接表面上来焊接板（10），（12），其中激光束（14）从薄板（10）的齐平表面朝着邻接 （12）的端面（12a），激光束（14）的目标位置（P）设置在厚板（12）的邻接端面（12a）上，目标位置深度D （1）的范围内，t /3≤D≤t...（1）（其中t是厚度），其中t是厚度 在薄板（10）的邻接端面（10a）的平面方向上，并且D和t都以mm）给出。
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5.发明公开STEEL SHEET HOT-DIP-COATED WITH Zn-Al-Mg-BASED SYSTEM, AND PROCESS OF MANUFACTURING SAME 审中-公开MIT EINEM ZN-AL-MG系统HEISSVERZINKTES STAHLBLECH UND VERFAHREN ZU SEINER HERSTELLUNG
公开(公告)号：EP2682495A1
公开(公告)日：2014-01-08
申请号：EP12752196.1
申请日：2012-02-28
CPC分类号： B60R13/00 , B32B15/013 , C21D8/0205 , C21D8/0278 , C21D2211/004 , C21D2211/005 , C22C18/04 , C22C23/02 , C22C23/04 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/06 , C23C2/40 , Y10T428/12799
摘要： [Problem] To provide a steel sheet hot-dip-plated with a Zn-Al-Mg-based alloy coating, which is remarkably improved in point of all the burring workability, the liquid metal embrittlement cracking resistance and the corrosion resistance in the welded part thereof, as a steel material favorable for arc-welded structural members.
[Means for Resolution] A plated steel sheet having a Zn-Al-Mg-based alloy coating layer formed by hot-dipping on the surface of a base steel sheet for welded structural members, wherein the base steel sheet has a specific chemical composition and has a metallographic structure of such that Ti-containing precipitates having a mean particle diameter of at most 20 nm are dispersed in the matrix formed of a ferrite phase therein, and wherein the liquid metal embrittlement cracking sensitivity index H3 value of the base steel sheet represented by the following formula (3) and indicating the relationship between the contents of the steel components and the thickness t (mm) of the steel sheet is at most 2.90:摘要翻译： [问题]为了提供热浸镀Zn-Al-Mg基合金涂层的钢板，其在所有的加工加工性方面都得到显着改善，焊接中的液态金属脆性开裂性和耐腐蚀性 作为有利于电弧焊结构体的钢材。 [解决方法]将通过在用于焊接结构件的基础钢板的表面上热浸而形成的Zn-Al-Mg系合金被覆层的电镀钢板，其中，所述基体钢板具有特定的化学成分， 具有使平均粒径为20nm以下的含Ti析出物分散在由铁素体相形成的基体中的金相组织，其中，所述基体钢板的液态金属脆化裂纹敏感性指数H3值 通过下式（3）表示钢构件的含量与钢板的厚度t（mm）之间的关系为2.90以下：
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公开(公告)号：EP3470541A1
公开(公告)日：2019-04-17
申请号：EP18209034.0
申请日：2012-02-28
摘要： [Problem] To provide a steel sheet hot-dip-plated with a Zn-Al-Mg-based alloy coating, which is remarkably improved in point of all the burring workability, the liquid metal embrittlement cracking resistance and the corrosion resistance in the welded part thereof, as a steel material favorable for arc-welded structural members.
[Means for Resolution] A plated steel sheet having a Zn-Al-Mg-based alloy coating layer formed by hot-dipping on the surface of a base steel sheet for welded structural members, wherein the base steel sheet has a specific chemical composition and has a metallographic structure of such that Ti-containing precipitates having a mean particle diameter of at most 20 nm are dispersed in the matrix formed of a ferrite phase therein, and wherein the liquid metal embrittlement cracking sensitivity index H3 value of the base steel sheet represented by the following formula (3) and indicating the relationship between the contents of the steel components and the thickness t (mm) of the steel sheet is at most 2.90: H 3 Value = C / 0.2 + Si / 5.0 + Mn / 1.3 + Cr / 1.0 + Mo / 1.2 + 0.4 t − 0.7 Cr + Mo 1 / 2-
公开(公告)号：EP3184231B1
公开(公告)日：2018-09-19
申请号：EP15843959.6
申请日：2015-06-01
IPC分类号： B23K26/21 , B23K26/26 , B23K26/32 , B23K26/242
CPC分类号： B23K26/26 , B23K26/21 , B23K26/242 , B23K26/32
摘要： Provided is a laser welding method of materials having different thicknesses that can achieve excellent weld strength regardless of the thickness of a thick plate, and a welded member having different thicknesses. That is, the present invention is characterized by a laser welding method of materials having different thicknesses, including: abutting two plates (10), (12) having different thicknesses such that one surface of the plate (10) and one surface the plate (12) are made flush with each other; and thereafter welding the plates (10), (12) by applying a laser beam (14) to abutting surfaces thereof, wherein the laser beam (14) is made incident obliquely from the flush surface of the thin plate (10) toward an abutting end face (12a) of the thick plate (12), a target position (P) of the laser beam (14) is set on the abutting end face (12a) of the thick plate (12), and a target position depth D in the plate from a surface thereof on the incident side of the laser beam (14) is set within a range of the following expression (1), t/3 ‰¤ D ‰¤ t ...(1) (where t is a thickness, in a planar direction, of an abutting end face (10a) of the thin plate (10), and D and t are both given in mm).
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8.发明公开ARC WELDING METHOD FOR HOT-DIP GALVANIZED STEEL PLATE HAVING EXCELLENT APPEARANCE OF WELDED PART AND HIGH WELDING STRENGTH, METHOD FOR MANUFACTURING WELDING MEMBER, AND WELDING MEMBER 审中-公开具有焊接部位优良外观和高焊接强度的热镀锌钢板的电弧焊接方法，焊接构件的制造方法以及焊接构件
公开(公告)号：EP3305453A1
公开(公告)日：2018-04-11
申请号：EP16802839.7
申请日：2016-02-02
摘要： Hot dip Zn-based alloy coated steel sheets are arc-weld in such a way that (a) a current waveform is a pulsed current waveform in which (i) a peak current and a base current alternate with each other at a pulse period of 1 ms to 50 ms and (ii) an average welding current is 100 A to 350 A and (b) an average welding voltage is 20 V to 35 V. Each of the hot dip Zn-based alloy coated steel sheets includes a coating layer that contains Zn as a main component and that contains Al at a concentration of 1.0% by mass to 22.0% by mass, and has a coating weight W of 15 g/m 2 to 250 g/m 2 [ Fig. 1 ]
摘要翻译： （a）电流波形是脉冲电流波形，其中（i）峰值电流和基极电流在脉冲周期彼此交替 （ii）平均焊接电流为100A至350A，和（b）平均焊接电压为20V至35V。每个热浸Zn基合金涂层钢板包括涂层 其含有Zn作为主要成分，并且含有浓度为1.0质量％至22.0质量％的Al，并具有15g / m 2至250g / m 2的涂层重量W。 1]
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公开(公告)号：EP2862662B1
公开(公告)日：2017-09-20
申请号：EP13803668.6
申请日：2013-05-22
IPC分类号： B23K9/23 , B23K9/16 , B23K9/173 , C22C18/04 , C22C38/14 , C22C38/00 , C22C38/12 , C22C38/06 , C22C38/04 , C22C38/02 , B23K35/38 , B23K35/00 , B32B15/01 , C22C18/00
CPC分类号： B23K9/23 , B23K9/173 , B23K35/004 , B23K35/38 , B23K35/383 , B32B15/013 , C22C18/00 , C22C18/04 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C23C2/06
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