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 PDFInfo
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- 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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- 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
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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
- 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
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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
- 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
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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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- 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
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。
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Cited By (5)
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 |
-
2014
- 2014-11-03 CN CN201410607209.4A patent/CN104353923A/zh active Pending
Cited By (7)
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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