CN104353923A - Channel steel splicing-welding square pipe splicing-welding process - Google Patents
Channel steel splicing-welding square pipe splicing-welding process Download PDFInfo
- 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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- CN
- China
- Prior art keywords
- welding
- splicing
- channel
- butt
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
The invention relates to a channel steel splicing-welding square pipe splicing-welding process. The splicing-welding process is characterized by comprising the steps of weld assembling, surface cleaning and sequential welding-welding. The splicing-welding process is convenient in operation, high in efficiency, low in cost, small in workpiece deformation, high in strength and good in sealing performance.
Description
Technical field
The present invention relates to a kind of metal welding methods, particularly a kind of channel-section steel welding rectangular tube welding procedure.
Background technology
In prior art, in the technique by channel-section steel welding rectangular tube, the outside weld seam of general only welding channel-section steel joint, bad mechanical strength, air-tightness is difficult to meet technical requirement.
Summary of the invention
The object of this invention is to provide the inside and outside two sides of a kind of joint to weld respectively, workpiece deformation be little, intensity is high, the channel-section steel welding rectangular tube welding procedure of good seal performance.
For achieving the above object, the concrete technology step of the present invention's employing is as follows:
1. weldment assembling: by the notch limit Butt Assembling of two blocks of channel-section steels, fit-up gap is less than 1.5mm, increases V-butt, the degree of depth 3 ~ 4mm of 90 °, then fix in the spot welding of groove place at the linear slit place, outside of butt weld, spot welding spacing 38 ~ 42mm, run-on tab is installed at channel-section steel two ends.
2. removing surface: remove greasy dirt, the rusty stain around the inside and outside limit of clean butt weld.
3. order welding: for butt weld, according to first interior rear outer order welding, inner edge welding adopts small-sized automatic welder(welding machine), the argon gas being added content 5% by the CO2 gas of content 95% is that protective gas carries out automatic welding, automatic welding is hidden in outside welding employing, solder wire material H08Mn2SiA, diameter 1.2mm, CO2 gas purity is greater than 99.5%, purity of argon is greater than 99.95%, welding current 380 ~ 390A, voltage 25V, shield gas flow rate 20L/min, speed of welding 27m/h, electrode extension 18 ~ 20mm, welding wire with weld direction of advance angle 75 ° ~ 80 °, reverse polarity.
The present invention is owing to adopting above process, easy to operate, and efficiency is high, and cost is low, and workpiece deformation is little, intensity is high, good seal performance.
Detailed description of the invention
1. select 16Mn channel-section steel, by the notch limit Butt Assembling of two blocks of channel-section steels, fit-up gap is less than 1.5mm, V-butt, the degree of depth 3 ~ 4mm of 90 ° is increased at the linear slit place, outside of butt weld, fix in the spot welding of groove place, spot welding spacing 40mm, run-on tab is installed at channel-section steel two ends again.
2. remove greasy dirt, the rusty stain around the inside and outside limit of clean butt weld.
3. for butt weld; according to first interior rear outer order welding; inner edge welding adopts small-sized automatic welder(welding machine), added the argon gas of content 5% by the CO2 gas of content 95% is that protective gas carries out automatic welding; automatic welding is hidden in outside welding employing; solder wire material H08Mn2SiA, diameter 1.2mm; CO2 gas purity is greater than 99.5%; purity of argon is greater than 99.95%; welding current 390A, voltage 25V; shield gas flow rate 20L/min, speed of welding 27m/h, electrode extension 18 ~ 20mm; welding wire with weld direction of advance angle 75 ° ~ 80 °, reverse polarity.
Claims (1)
1. a channel-section steel welding rectangular tube welding procedure, is characterized in that through following processing step:
Weldment is assembled: by the notch limit Butt Assembling of two blocks of channel-section steels, fit-up gap is less than 1.5mm, increases V-butt, the degree of depth 3 ~ 4mm of 90 °, then fix in the spot welding of groove place at the linear slit place, outside of butt weld, spot welding spacing 38 ~ 42mm, run-on tab is installed at channel-section steel two ends;
Removing surface: remove greasy dirt, the rusty stain around the inside and outside limit of clean butt weld;
Order welding: for butt weld, according to first interior rear outer order welding, inner edge welding adopts small-sized automatic welder(welding machine), the argon gas being added content 5% by the CO2 gas of content 95% is that protective gas carries out automatic welding, automatic welding is hidden in outside welding employing, solder wire material H08Mn2SiA, diameter 1.2mm, CO2 gas purity is greater than 99.5%, purity of argon is greater than 99.95%, welding current 380 ~ 390A, voltage 25V, shield gas flow rate 20L/min, speed of welding 27m/h, electrode extension 18 ~ 20mm, welding wire with weld direction of advance angle 75 ° ~ 80 °, reverse polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607209.4A CN104353923A (en) | 2014-11-03 | 2014-11-03 | Channel steel splicing-welding square pipe splicing-welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607209.4A CN104353923A (en) | 2014-11-03 | 2014-11-03 | Channel steel splicing-welding square pipe splicing-welding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104353923A true CN104353923A (en) | 2015-02-18 |
Family
ID=52521281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410607209.4A Pending CN104353923A (en) | 2014-11-03 | 2014-11-03 | Channel steel splicing-welding square pipe splicing-welding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104353923A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397246A (en) * | 2015-12-24 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | Thin-wall stainless steel plate spliced square-opening pipe welding port deformation preventing method |
| CN106624278A (en) * | 2016-12-26 | 2017-05-10 | 中核北方核燃料元件有限公司 | Welding method for tapered aluminum product |
| CN106825877A (en) * | 2017-03-29 | 2017-06-13 | 于银强 | stainless steel square tube welding process |
| CN106925950A (en) * | 2015-12-31 | 2017-07-07 | 西安核设备有限公司 | A kind of large-scale double-layer thin wall D types section vacuum chamber interlayer flow path groove steel making process |
| CN108788647A (en) * | 2018-06-25 | 2018-11-13 | 深圳金鑫绿建股份有限公司 | The technique and equipment led to using channel steel splicing side |
-
2014
- 2014-11-03 CN CN201410607209.4A patent/CN104353923A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397246A (en) * | 2015-12-24 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | Thin-wall stainless steel plate spliced square-opening pipe welding port deformation preventing method |
| CN105397246B (en) * | 2015-12-24 | 2018-06-05 | 哈尔滨锅炉厂有限责任公司 | Thin-wall stainless steel plate spells anti-deformation method at square opening pipe weld port |
| CN106925950A (en) * | 2015-12-31 | 2017-07-07 | 西安核设备有限公司 | A kind of large-scale double-layer thin wall D types section vacuum chamber interlayer flow path groove steel making process |
| CN106925950B (en) * | 2015-12-31 | 2019-05-14 | 西安核设备有限公司 | A kind of large size double-layer thin wall D type section vacuum chamber interlayer flow path groove steel making process |
| CN106624278A (en) * | 2016-12-26 | 2017-05-10 | 中核北方核燃料元件有限公司 | Welding method for tapered aluminum product |
| CN106825877A (en) * | 2017-03-29 | 2017-06-13 | 于银强 | stainless steel square tube welding process |
| CN108788647A (en) * | 2018-06-25 | 2018-11-13 | 深圳金鑫绿建股份有限公司 | The technique and equipment led to using channel steel splicing side |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |