CN104353923A - 槽钢拼焊方形管焊接工艺 - Google Patents

槽钢拼焊方形管焊接工艺 Download PDF

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Publication number
CN104353923A
CN104353923A CN201410607209.4A CN201410607209A CN104353923A CN 104353923 A CN104353923 A CN 104353923A CN 201410607209 A CN201410607209 A CN 201410607209A CN 104353923 A CN104353923 A CN 104353923A
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China
Prior art keywords
welding
splicing
channel
butt
gas
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CN201410607209.4A
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English (en)
Inventor
刘登发
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Hengyang Fengshun Automobile Axle Co Ltd
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Hengyang Fengshun Automobile Axle Co Ltd
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Application filed by Hengyang Fengshun Automobile Axle Co Ltd filed Critical Hengyang Fengshun Automobile Axle Co Ltd
Priority to CN201410607209.4A priority Critical patent/CN104353923A/zh
Publication of CN104353923A publication Critical patent/CN104353923A/zh
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/18—Submerged-arc welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/235—Preliminary treatment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Arc Welding In General (AREA)

Abstract

一种槽钢拼焊方形管焊接工艺，其特征是经过焊件组装、表面清理、顺序焊接工艺步骤。操作方便，效率高，成本低，工件变形小、强度高、密封性能好。

Description

槽钢拼焊方形管焊接工艺
技术领域
本发明涉及一种金属焊接方法，特别是一种槽钢拼焊方形管焊接工艺。
背景技术
现有技术中，在由槽钢拼焊方形管的工艺中，普遍只焊接槽钢对接处的外面焊缝，机械强度差，气密性难以满足技术要求。
发明内容
本发明的目的是提供一种对接处内、外两面分别焊接，工件变形小、强度高、密封性能好的槽钢拼焊方形管焊接工艺。
为实现上述发明目的，本发明采用的具体工艺步骤如下：
1．焊件组装：将两块槽钢的槽口边对接装配，装配间隙小于1.5mm，在对接焊缝的外边线缝处加开90°的V形坡口、深度3～4mm，再在坡口处点焊固定，点焊间距38～42mm,槽钢两端安装引弧板。
2．表面清理：清除干净对接焊缝内、外边周围的油污、锈迹。
3．顺序焊接：针对对接焊缝，按照先内后外顺序焊接，内边焊接采用小型自动焊机、由含量95%的CO2气体加含量5%的氩气为保护气体进行自动焊接，外边焊接采用埋伏自动焊接，焊丝材料H08Mn2SiA、直径1.2mm，CO2气体纯度大于99.5%，氩气纯度大于99.95%，焊接电流380～390A、电压25V，保护气体流量20L/min,焊接速度27m/h，焊丝伸出长度18～20mm，焊丝与焊接前进方向夹角75°～80°，反极性接法。
本发明由于采用以上工艺方法，操作方便，效率高，成本低，工件变形小、强度高、密封性能好。
具体实施方式
1．选用16Mn槽钢，将两块槽钢的槽口边对接装配，装配间隙小于1.5mm，在对接焊缝的外边线缝处加开90°的V形坡口、深度3～4mm，再在坡口处点焊固定，点焊间距40mm,槽钢两端安装引弧板。
2．清除干净对接焊缝内、外边周围的油污、锈迹。
3．针对对接焊缝，按照先内后外顺序焊接，内边焊接采用小型自动焊机、由含量95%的CO2气体加含量5%的氩气为保护气体进行自动焊接，外边焊接采用埋伏自动焊接，焊丝材料H08Mn2SiA、直径1.2mm，CO2气体纯度大于99.5%，氩气纯度大于99.95%，焊接电流390A、电压25V，保护气体流量20L/min,焊接速度27m/h，焊丝伸出长度18～20mm，焊丝与焊接前进方向夹角75°～80°，反极性接法。

Claims (1)

1.一种槽钢拼焊方形管焊接工艺,其特征是经过如下工艺步骤：
焊件组装：将两块槽钢的槽口边对接装配，装配间隙小于1.5mm，在对接焊缝的外边线缝处加开90°的V形坡口、深度3～4mm，再在坡口处点焊固定，点焊间距38～42mm,槽钢两端安装引弧板；
表面清理：清除干净对接焊缝内、外边周围的油污、锈迹；
顺序焊接：针对对接焊缝，按照先内后外顺序焊接，内边焊接采用小型自动焊机、由含量95%的CO2气体加含量5%的氩气为保护气体进行自动焊接，外边焊接采用埋伏自动焊接，焊丝材料H08Mn2SiA、直径1.2mm，CO2气体纯度大于99.5%，氩气纯度大于99.95%，焊接电流380～390A、电压25V，保护气体流量20L/min,焊接速度27m/h，焊丝伸出长度18～20mm，焊丝与焊接前进方向夹角75°～80°，反极性接法。
CN201410607209.4A 2014-11-03 2014-11-03 槽钢拼焊方形管焊接工艺 Pending CN104353923A (zh)

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CN201410607209.4A CN104353923A (zh) 2014-11-03 2014-11-03 槽钢拼焊方形管焊接工艺

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105397246A (zh) * 2015-12-24 2016-03-16 哈尔滨锅炉厂有限责任公司 薄壁不锈钢板拼方口管焊接端口处防变形方法
CN106624278A (zh) * 2016-12-26 2017-05-10 中核北方核燃料元件有限公司 一种变壁厚铝材焊接方法
CN106825877A (zh) * 2017-03-29 2017-06-13 于银强 不锈钢方管焊接工艺
CN106925950A (zh) * 2015-12-31 2017-07-07 西安核设备有限公司 一种大型双层薄壁d型截面真空室夹层流道槽钢制造工艺方法
CN108788647A (zh) * 2018-06-25 2018-11-13 深圳金鑫绿建股份有限公司 利用槽钢拼接方通的工艺以及设备

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105397246A (zh) * 2015-12-24 2016-03-16 哈尔滨锅炉厂有限责任公司 薄壁不锈钢板拼方口管焊接端口处防变形方法
CN105397246B (zh) * 2015-12-24 2018-06-05 哈尔滨锅炉厂有限责任公司 薄壁不锈钢板拼方口管焊接端口处防变形方法
CN106925950A (zh) * 2015-12-31 2017-07-07 西安核设备有限公司 一种大型双层薄壁d型截面真空室夹层流道槽钢制造工艺方法
CN106925950B (zh) * 2015-12-31 2019-05-14 西安核设备有限公司 一种大型双层薄壁d型截面真空室夹层流道槽钢制造工艺方法
CN106624278A (zh) * 2016-12-26 2017-05-10 中核北方核燃料元件有限公司 一种变壁厚铝材焊接方法
CN106825877A (zh) * 2017-03-29 2017-06-13 于银强 不锈钢方管焊接工艺
CN108788647A (zh) * 2018-06-25 2018-11-13 深圳金鑫绿建股份有限公司 利用槽钢拼接方通的工艺以及设备

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Application publication date: 20150218