CN104588851A - 一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺 - Google Patents
一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺 Download PDFInfo
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- CN104588851A CN104588851A CN201410695276.6A CN201410695276A CN104588851A CN 104588851 A CN104588851 A CN 104588851A CN 201410695276 A CN201410695276 A CN 201410695276A CN 104588851 A CN104588851 A CN 104588851A
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- 238000003466 welding Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 235000013527 bean curd Nutrition 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 235000021251 pulses Nutrition 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 21
- 238000010891 electric arc Methods 0.000 description 3
- 239000010953 base metal Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
Classifications
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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
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
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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
- B23K35/383—Selection of media, e.g. special atmospheres for surrounding the working area mainly containing noble gases or nitrogen
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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
- B23K9/164—Arc welding or cutting making use of shielding gas making use of a moving fluid
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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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- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
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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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
本发明公开了一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺,包括以下步骤:采用对接焊,接头处开I型坡口;对需要焊接的坡口进行清理,清除待焊接件表面污物;调节焊接工艺参数,采用熔化极混合气体保护焊,保护气体是CO2和Ar,气体流量为10~15L/min;焊接时采用脉冲电流进行焊接,焊接电流为150~180A,电压为18~22V,焊接速度400~500mm/min,干丝伸长量10mm;焊接时先在背面进行临时点焊,当正面焊好后应将背面的点焊割掉后,再焊背面。本发明实施方便,焊接效率高,混合气体保护焊是常用的焊接方法,设备及耗材易于采购实现,焊接工人易于掌握实施,可以采用自动焊工艺,焊接效率高,焊接缺陷发生率低。
Description
发明领域
本发明涉及一种钢的焊接工艺,具体涉及一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺。
背景技术
熔化极气体保护焊是利用焊丝与工件间产生的电弧作热源将金属熔化的焊接方法。焊接过程中,电弧熔化焊丝和母材形成的熔池及焊接区域在惰性气体或活性气体的保护下,可以有效地阻止周围环境空气的有害作用。采用的是可熔化的焊丝与焊件之间的电弧作为热源来熔化焊丝与母材金属,并向焊接区输送保护气体,使电弧、熔化的焊丝、熔池及附近的母材金属免受周围空气的有害作用。
发明内容
为解决上述问题,本发明提供了一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺。
本发明所采取的技术方案为:
一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺,其特征在于,包括以下步骤:
(1)采用对接焊,接头处开I型坡口;
(2)对需要焊接的坡口进行清理,清除待焊接件表面污物,如铁锈氧化物、油污等;
(3)调节焊接工艺参数,采用熔化极混合气体保护焊,保护气体是CO2和 Ar,气体流量为10~15L/min;焊接时采用脉冲电流进行焊接,焊接电流为150~180A,电压为18~22V,焊接速度400~500mm/min,干丝伸长量10mm;
(4)焊接时先在背面进行临时点焊,临时点焊的高度和宽度不得超过以后焊缝的尺寸,点焊的长度可选择10~80mm,当正面焊好后应将背面的点焊割掉后,再焊背面,对于较长焊缝尤其满焊应尽可能从中间向两端施焊,以减少焊接变形。
进一步地,所述钢为碳钢时的保护气体的比例为80%的Ar和20%的CO2;所述钢为不锈钢时的保护气体的比例为97.5%的Ar和2.5%的CO2。
进一步地,焊接时根据钢的材料选择相应的药芯焊丝,药芯焊丝采用纯CO2气体保护。
本发明的有益效果:
本发明实施方便,焊接效率高,混合气体保护焊是常用的焊接方法,设备及耗材易于采购实现,焊接工人易于掌握实施,可以采用自动焊工艺,焊接效率高,焊接缺陷发生率低。
具体实施方式
一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺,其特征在于,包括以下步骤:
(1)采用对接焊,接头处开I型坡口;
(2)对需要焊接的坡口进行清理,清除待焊接件表面污物,如铁锈氧化物、油污等;
(3)调节焊接工艺参数,采用熔化极混合气体保护焊,保护气体是CO2和 Ar,气体流量为10~15L/min;焊接时采用脉冲电流进行焊接,焊接电流为150~180A,电压为18~22V,焊接速度400~500mm/min,干丝伸长量10mm;
(4)焊接时先在背面进行临时点焊,临时点焊的高度和宽度不得超过以后焊缝的尺寸,点焊的长度可选择10~80mm,当正面焊好后应将背面的点焊割掉后,再焊背面,对于较长焊缝尤其满焊应尽可能从中间向两端施焊,以减少焊接变形。
进一步地,所述钢为碳钢时的保护气体的比例为80%的Ar和20%的CO2;所述钢为不锈钢时的保护气体的比例为97.5%的Ar和2.5%的CO2。
进一步地,焊接时根据钢的材料选择相应的药芯焊丝,药芯焊丝采用纯CO2气体保护。
Claims (3)
1.一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺,其特征在于,包括以下步骤:
(1)采用对接焊,接头处开I型坡口;
(2)对需要焊接的坡口进行清理,清除待焊接件表面污物,如铁锈氧化物、油污等;
(3)调节焊接工艺参数,采用熔化极混合气体保护焊,保护气体是CO2和 Ar,气体流量为10~15L/min;焊接时采用脉冲电流进行焊接,焊接电流为150~180A,电压为18~22V,焊接速度400~500mm/min,干丝伸长量10mm;
(4)焊接时先在背面进行临时点焊,临时点焊的高度和宽度不得超过以后焊缝的尺寸,点焊的长度可选择10~80mm,当正面焊好后应将背面的点焊割掉后,再焊背面,对于较长焊缝尤其满焊应尽可能从中间向两端施焊,以减少焊接变形。
2.根据权利要求1所述的一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺,其特征在于:所述钢为碳钢时的保护气体的比例为80%的Ar和20%的CO2;所述钢为不锈钢时的保护气体的比例为97.5%的Ar和2.5%的CO2。
3.根据权利要求1所述的一种3mm以下厚度钢板材的熔化极混合气体保护焊焊接工艺,其特征在于:焊接时根据钢的材料选择相应的药芯焊丝,药芯焊丝采用纯CO2气体保护。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109352144A (zh) * | 2018-12-07 | 2019-02-19 | 中船重工(武汉)船舶与海洋工程装备设计有限公司 | 一种薄壁结构的焊接方法及装置 |
CN109590583A (zh) * | 2018-10-24 | 2019-04-09 | 河钢股份有限公司 | 980MPa级冷轧双相钢板材的气体保护焊接工艺 |
CN111230262A (zh) * | 2019-12-24 | 2020-06-05 | 江苏中铁山桥重工有限公司 | 一种薄板焊接变形的控制及矫正方法 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109590583A (zh) * | 2018-10-24 | 2019-04-09 | 河钢股份有限公司 | 980MPa级冷轧双相钢板材的气体保护焊接工艺 |
CN109352144A (zh) * | 2018-12-07 | 2019-02-19 | 中船重工(武汉)船舶与海洋工程装备设计有限公司 | 一种薄壁结构的焊接方法及装置 |
CN111230262A (zh) * | 2019-12-24 | 2020-06-05 | 江苏中铁山桥重工有限公司 | 一种薄板焊接变形的控制及矫正方法 |
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