CN111570979A - 一种异种金属焊接试板的连接方法 - Google Patents

一种异种金属焊接试板的连接方法 Download PDF

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CN111570979A
CN111570979A CN202010442089.2A CN202010442089A CN111570979A CN 111570979 A CN111570979 A CN 111570979A CN 202010442089 A CN202010442089 A CN 202010442089A CN 111570979 A CN111570979 A CN 111570979A
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welding
transition layer
groove
welding test
welding seam
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田磊
毕宗岳
韦奉
牛爱军
张万鹏
黄晓辉
王盼
祝少华
王璟丽
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China National Petroleum Corp
Baoji Petroleum Steel Pipe Co Ltd
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Baoji Petroleum Steel Pipe Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/16Arc welding or cutting making use of shielding gas
    • B23K9/173Arc welding or cutting making use of shielding gas and of a consumable electrode
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/235Preliminary treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/32Accessories
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00Coating starting from inorganic powder
    • C23C24/08Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C23C24/106Coating with metal alloys or metal elements only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/18Dissimilar materials

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  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
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  • Organic Chemistry (AREA)
  • Arc Welding In General (AREA)
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Abstract

本发明公开了一种异种金属焊接试板的连接方法,包括以下步骤:1)将两种焊接试板采用对接方式,开V型坡口;2)对第一种焊接试板的一侧坡口进行表面熔覆,形成过渡层焊缝;过渡层焊缝采用激光熔覆或等离子喷涂工艺,填充材料与第二种焊接试板的材料相同,过渡层焊缝表面与第一种焊接试板的一侧坡口表面平行,厚度为0.2~10mm;3)清理过渡层焊缝表面,将两种焊接试板对接进行焊接,形成连接焊缝。通过坡口设计和焊接工艺匹配,使坡口两侧材料由异种变为同种,减小焊接难度,保证焊缝质量,实现异种金属的优质高效焊接,充分发挥异种金属的优势。

Description

一种异种金属焊接试板的连接方法
技术领域:
本发明涉及异种材料焊接技术领域,特别涉及一种异种金属焊接试板的连接方法。
背景技术:
近年来,随着对材料轻量化及耐腐蚀、耐磨等需求的增加,要求材料在不同部位具有不同的性能,异种材料连接需求与日俱增。目前异种材料连接主要还是用传统的熔化焊,将两种成分与性能完全不同的焊材熔化在一个焊缝中,其各自的优势都得不到发挥,还容易产生硬脆相,从而诱发焊接裂纹。因此,异种材料焊缝成为质量薄弱点。
发明内容:
本发明的目的在于克服上述现有技术的缺点,提供一种异种金属焊接试板的连接方法,通过坡口设计和焊接工艺匹配,使坡口两侧材料由异种变为同种,减小焊接难度,保证焊缝质量,实现异种金属的优质高效焊接,充分发挥异种金属的优势。
为实现上述目的,本发明采用的技术方案是:一种异种金属焊接试板的连接方法,包括以下步骤:
(1)将两种焊接试板采用对接方式,开V型坡口;
(2)对第一种焊接试板的一侧坡口进行表面熔覆,形成过渡层焊缝;过渡层焊缝采用激光熔覆或等离子喷涂工艺,填充材料与第二种焊接试板的材料相同,过渡层焊缝表面与第一种焊接试板的一侧坡口表面平行,厚度为0.2~10mm;
(3)清理过渡层焊缝表面,将两种焊接试板对接进行焊接,形成连接焊缝。
进一步,所述异种金属为黑色金属、有色金属或合金。
进一步,所述V型坡口的角度为50±50°,底部钝边高度为0~5mm。
本发明的有益效果在于:
本发明采用V型坡口,形式简单,易于加工;过渡层焊缝采用激光熔敷或等离子喷涂工艺,通过对坡口表面覆层处理,可使坡口两侧材料由异种变为同种,减小焊接难度;激光熔敷或等离子喷涂的表面处理工艺,由于其热输入低,对基材熔化少,焊缝冷速快,可有效隔离异种金属冲混及界面元素扩散,获得良好的过渡层焊缝性能;过渡层焊缝与母材界面结合强度高于母材抗剪强度。本发明连接焊缝的焊接方法根据对焊缝质量需求自由选择TIG、GMAW、SMAW或LBW等工艺。本发明通过合理的坡口设计和焊接工艺匹配,实现异种金属的优质高效焊接,方法简便,适应面广,易实现自动化生产,具有广泛的市场前景。
附图说明:
图1为对本发明异种金属焊接试板坡口进行焊接的示意图。
附图标记说明:1-第一种焊接试板、2-第二种焊接试板、3-过渡层焊缝、4-连接焊缝。
具体实施方式:
下面结合附图对本发明做进一步详细说明:
如图1所示,第一种焊接试板的材质为304,尺寸150×400mm,厚度10mm。第二种焊接试板的材质为Q345,尺寸150×400mm,厚度10mm。第一种焊接试板和第二种焊接试板对接开V型坡口,坡口角度70°,钝边2mm。
采用激光熔覆工艺对第一种焊接试板的坡口表面进行纯铁粉末熔覆,形成过渡层焊缝3。过渡层焊缝表面与第一种焊接试板坡口表面平行,厚度2mm。为保证过渡层焊缝质量,激光熔敷需采用纯Ar进行保护。具体焊接参数如表1所示。
表1过渡层焊缝焊接参数
离焦量(mm) 功率(kw) 扫描速率(mm/s) 光斑直径(mm)
25 1 10 1.2
采用角磨机清理过渡层焊缝,去除表面氧化物。将第一种焊接试板和第二种焊接试板对接,对口间隙3mm。采用MIG对V型坡口进行焊接,焊丝型号为ER50S,直径φ1.2,焊接保护气体为80%Ar+20%CO2,打底焊时需有背气保护。具体焊接参数如表2所示。
表2连接焊缝焊接参数
电流种类 焊接电流(A) 焊接电压(V) 焊接速度(m/h)
DC 220~260 25~28 35~70
对焊缝进行探伤,未发现焊接缺陷;对焊缝进行硬度、冲击及异种金属界面结合力检测,结果如表3所示。
表3焊缝性能检测结果
Figure BDA0002504542910000021

Claims (3)

1.一种异种金属焊接试板的连接方法,其特征在于:包括以下步骤:
(1)将两种焊接试板采用对接方式,开V型坡口;
(2)对第一种焊接试板的一侧坡口进行表面熔覆,形成过渡层焊缝;过渡层焊缝采用激光熔覆或等离子喷涂工艺,填充材料与第二种焊接试板的材料相同,过渡层焊缝表面与第一种焊接试板的一侧坡口表面平行,厚度为0.2~10mm;
(3)清理过渡层焊缝表面,将两种焊接试板对接进行焊接,形成连接焊缝。
2.根据权利要求1所述的一种异种金属焊接试板的连接方法,其特征在于:所述异种金属为黑色金属、有色金属或合金。
3.根据权利要求1所述的一种异种金属焊接试板的连接方法,其特征在于:所述V型坡口的角度为50±50°,底部钝边高度为0~5mm。
CN202010442089.2A 2020-05-22 2020-05-22 一种异种金属焊接试板的连接方法 Pending CN111570979A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114260574A (zh) * 2021-12-17 2022-04-01 江苏大学 一种适合低合金钢/不锈钢的异种钢水下湿法焊接方法
CN114315174A (zh) * 2021-12-28 2022-04-12 上海菲利华石创科技有限公司 一种加厚不透明石英玻璃板的焊接方法

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CN107984062A (zh) * 2017-11-27 2018-05-04 江苏金通灵流体机械科技股份有限公司 一种SUS316奥氏体不锈钢与Weldox700E低合金调质钢异种钢焊接的焊接方法
CN110253162A (zh) * 2019-03-15 2019-09-20 江苏大学 一种结合激光增材和激光焊接的异种金属材料连接方法

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Publication number Priority date Publication date Assignee Title
CN101643899A (zh) * 2009-09-05 2010-02-10 中国船舶重工集团公司第七二五研究所 一种异种金属焊接中间层的制备方法
CN102079012A (zh) * 2010-12-07 2011-06-01 武汉大学 一种铝-钢连接块的制备方法
US20120164510A1 (en) * 2010-12-22 2012-06-28 General Electric Company Ceramic-metal sealing structure, and associated method
CN107971624A (zh) * 2017-11-22 2018-05-01 浙江理工大学 一种钢板和铝板的t型连接方法
CN107984062A (zh) * 2017-11-27 2018-05-04 江苏金通灵流体机械科技股份有限公司 一种SUS316奥氏体不锈钢与Weldox700E低合金调质钢异种钢焊接的焊接方法
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114260574A (zh) * 2021-12-17 2022-04-01 江苏大学 一种适合低合金钢/不锈钢的异种钢水下湿法焊接方法
CN114260574B (zh) * 2021-12-17 2024-07-30 江苏大学 一种适合低合金钢/不锈钢的异种钢水下湿法焊接方法
CN114315174A (zh) * 2021-12-28 2022-04-12 上海菲利华石创科技有限公司 一种加厚不透明石英玻璃板的焊接方法

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Application publication date: 20200825