CN104475933A - Argon-filled protection sealing welding method for argon arc welding for pipeline - Google Patents
Argon-filled protection sealing welding method for argon arc welding for pipeline Download PDFInfo
- Publication number
- CN104475933A CN104475933A CN201410632471.4A CN201410632471A CN104475933A CN 104475933 A CN104475933 A CN 104475933A CN 201410632471 A CN201410632471 A CN 201410632471A CN 104475933 A CN104475933 A CN 104475933A
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- CN
- China
- Prior art keywords
- pipeline
- argon
- polyvinyl alcohol
- welding
- soluble film
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
-
- 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
- B23K2101/04—Tubular or hollow articles
- B23K2101/10—Pipe-lines
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses an argon-filled protection sealing welding method for argon arc welding for a pipeline and belongs to the technical field of pipeline welding. The argon-filled protection sealing welding method for the argon arc welding for the pipeline includes that forming a groove at a welded junction of the pipeline to be welded, cleaning the inner sides of the pipeline at two sides of the welded junction, using a brush to uniformly smear hydrosol for fixing water-soluble films at the cleaned inner sides, uniformly bonding the polyvinyl alcohol water-soluble films at the inner sides of the pipeline with the hydrosol, fixing the pipeline to be welded, sealing the outer side of the welded junction through an aluminum foil adhesive tape, inserting an argon-filled pipe from the bottom of the polyvinyl alcohol water-soluble film of one side, forming an exhaust hole in the top of the polyvinyl alcohol water-soluble film at the same side, and welding the welded junction when filling argon to the sealed pipeline region. The argon-filled protection sealing welding method for the argon arc welding for the pipeline is easy to operate, the argon usage amount is saved, the weld joint quality is guaranteed, a procedure of removing a blockage device after constructing is omitted, the welding speed is greatly improved, and the cost is saved.
Description
Technical field
The invention belongs to pipeline welding technical field, specifically a kind of pipeline argon-filled protection Tig Welding method utilizing polyvinyl alcohol water soluble film to make sealing mold.
Background technology
In current industrial special pipeline construction field, argon tungsten-arc welding because its weldquality is high, distortion and stress little and be widely used, its pipe welding port mostly utilizes argon gas as protective gas to carry out welding procedure.During welding, usually take pipe ends blind plate is carried out to shutoff, in pipeline, rushes the construction method of argon gas.But large for caliber, that length is long pipeline, not oxidized in order to ensure the pipe welding seam back side, often adopt long-time jumbo argon filling, increase construction cost, waste the time, and welding quality can not be guaranteed; For some bending more pipeline sections, easily produce dead mouth, cannot argon-filled protection be carried out; And the dismounting of plugging device is also quite wasted time and energy after welding.
Summary of the invention
The present invention is directed to the problems referred to above that prior art exists, a kind of pipeline argon arc welding argon-filled protection seal weld method is provided.
A kind of pipeline argon arc welding argon-filled protection seal weld method concrete steps provided by the present invention are as follows:
(1) groove is first accomplished fluently by the weld bond place of pipeline to be welded, the polyvinyl alcohol water soluble film being greater than described pipe diameter 220mm is cut out according to the diameter of described pipeline, clear up the insides of pipes at 200mm place, described weld bond both sides, guarantee without oil dustless, then with brush, the hydrosol being used for fixing water soluble film is spread upon this place uniformly, the application width of the described hydrosol is 50mm, described polyvinyl alcohol water soluble film is evenly pasted onto the brush coating place of described insides of pipes, and with clean brush, described polyvinyl alcohol water soluble film is fixed.
(2) described pipeline to be welded is fixed, seal with aluminum foil and adhesive tape outside described weld bond, the bottom of argon gas gas tube from polyvinyl alcohol water soluble film described in side is inserted, described in the same side, the top of polyvinyl alcohol water soluble film is provided with steam vent, argon gas is rushed in closed conduit region, detect argon gas inside concentration with apparatus for determination of oxygen, reach the normal weld flow of argon bottle valve regulated to 8-12L/min after requirement purity.
(3) carry out the welding of described weld bond, during welding, described aluminum foil and adhesive tape is torn on side weld limit, has welded rear described pipeline and has carried out water flowing pressure testing, and described polyvinyl alcohol water soluble film understands natural decomposition in water filling after 20 minutes, without the need to removing.
The inventive method is simple to operate, has saved argon gas use amount, ensure that weldquality, eliminates the dismounting operation of the rear plugging device of construction, greatly improves speed of welding, saved cost.
Accompanying drawing explanation
Fig. 1: the inventive method is used for the structural representation of pipeline welding;
A-A direction structure schematic diagram in Fig. 2: Fig. 1.
In figure: 1, pipeline; 2, polyvinyl alcohol water soluble film; 3, argon gas gas tube; 4, steam vent; 5, aluminum foil and adhesive tape.
Detailed description of the invention
The inventive method is applied in the Pipe installing engineering of certain steel plant, and its concrete implementation step is:
(1) groove is first accomplished fluently by the weld bond place of one group of extraordinary pipeline 1 to be welded, the polyvinyl alcohol water soluble film 2 being greater than pipe diameter 220mm is cut out according to the diameter of pipeline 1, the insides of pipes at cleaning 200mm place, weld bond both sides, guarantee without oil dustless, then with brush, the hydrosol of fixing polyvinyl alcohol water soluble film 2 is spread upon this place uniformly, glue application width is 50mm, the polyvinyl alcohol water soluble film 2 cut is attached to brush coating place inside pipeline 1 uniformly, and is fixed by film with clean brush; Because polyvinyl alcohol water soluble film 2 can bear the high temperature of 300 DEG C, after tested during construction the temperature at distance weld bond 200mm place lower than 300 DEG C, therefore temperature when it can bear welding.
(2) pipeline is fixed, with aluminum foil and adhesive tape 5 good seal outside its weld bond; The bottom of argon gas gas tube 3 from one side polyvinyl alcohol water soluble film 2 is inserted, a steam vent 4 is being opened with top on one side, in closed conduit, rush argon gas, detect argon gas inside concentration with apparatus for determination of oxygen, after reaching requirement by argon bottle valve regulated to welding normal discharge (8-12L/min).
(3) butt welding mouth carries out normal welding, and during welding, sealed aluminum foil belt 5 is torn on side weld limit, delayedly should stop argon gas after having welded; weld bond is adequately protected; welded rear pipeline and carried out water flowing pressure testing, polyvinyl alcohol water soluble film 2 understands natural decomposition in water filling after 20 minutes, removes without the need to special messenger.
A kind of pipeline argon arc welding argon-filled protection seal construction method that application the present invention proposes is constructed to certain enterprise's pipeline, has saved six day duration altogether, has often carried and can make a profit the previous day 800,000 yuan, for owner creates good economic benefit.The construction of application the method, makes pipeline welding quality obtain very large lifting, has saved Master Cost, labour cost, period of construction cost etc. about 8.5 ten thousand yuan simultaneously.
Claims (1)
1. a pipeline argon arc welding argon-filled protection seal weld method, is characterized in that the method concrete steps are as follows:
(1) groove is first accomplished fluently by the weld bond place of pipeline to be welded, the polyvinyl alcohol water soluble film being greater than described pipe diameter 220mm is cut out according to the diameter of described pipeline, clear up the insides of pipes at 200mm place, described weld bond both sides, guarantee without oil dustless, then with brush, the hydrosol being used for fixing water soluble film is spread upon this place uniformly, the application width of the described hydrosol is 50mm, described polyvinyl alcohol water soluble film is evenly pasted onto the brush coating place of described insides of pipes, and with clean brush, described polyvinyl alcohol water soluble film is fixed;
(2) described pipeline to be welded is fixed, seal with aluminum foil and adhesive tape outside described weld bond, the bottom of argon gas gas tube from polyvinyl alcohol water soluble film described in side is inserted, described in the same side, the top of polyvinyl alcohol water soluble film is provided with steam vent, argon gas is rushed in closed conduit region, detect argon gas inside concentration with apparatus for determination of oxygen, reach the normal weld flow of argon bottle valve regulated to 8-12L/min after requirement purity;
(3) carry out the welding of described weld bond, during welding, described aluminum foil and adhesive tape is torn on side weld limit, has welded rear described pipeline and has carried out water flowing pressure testing, and described polyvinyl alcohol water soluble film understands natural decomposition in water filling after 20 minutes, without the need to removing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632471.4A CN104475933A (en) | 2014-11-11 | 2014-11-11 | Argon-filled protection sealing welding method for argon arc welding for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632471.4A CN104475933A (en) | 2014-11-11 | 2014-11-11 | Argon-filled protection sealing welding method for argon arc welding for pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104475933A true CN104475933A (en) | 2015-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410632471.4A Pending CN104475933A (en) | 2014-11-11 | 2014-11-11 | Argon-filled protection sealing welding method for argon arc welding for pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN104475933A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913128A (en) * | 2015-05-26 | 2015-09-16 | 中国五冶集团有限公司 | Turbine lubrication oil pipeline connecting method |
| CN105458471A (en) * | 2016-01-19 | 2016-04-06 | 四川石油天然气建设工程有限责任公司 | Pipeline connector welding method |
| CN108637513A (en) * | 2018-05-16 | 2018-10-12 | 四川石油天然气建设工程有限责任公司 | A kind of welding method of petroleum gas long-distance transmission pipeline |
| CN108655545A (en) * | 2017-03-28 | 2018-10-16 | 五冶集团上海有限公司 | The water soluble paper touches the application in mouthful argon arc welding in long range industrial pipeline transition joint |
| CN110695496A (en) * | 2019-10-18 | 2020-01-17 | 中国电建集团山东电力建设第一工程有限公司 | Argon filling method for high alloy steel header pipe seat weld crater and welding method |
| CN110842332A (en) * | 2019-09-27 | 2020-02-28 | 天津理工大学 | Aluminum-plastic composite air bag for pipeline welding argon filling plugging and preparation method thereof |
| CN110899912A (en) * | 2019-10-29 | 2020-03-24 | 沪东中华造船(集团)有限公司 | Argon filling method for argon arc welding butt joint of pipelines |
| CN112792444A (en) * | 2020-09-17 | 2021-05-14 | 葫芦岛渤船工贸通和防腐有限公司 | Method for welding reversing interface of steam pipeline and main engine |
| CN114952062A (en) * | 2022-06-20 | 2022-08-30 | 北京卅伯曼科技有限公司 | Protective welding method for medical gas pipeline |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3736400A (en) * | 1971-08-31 | 1973-05-29 | Gilbreth Co | Apparatus for damming pipe ends for welding |
| JPH05245633A (en) * | 1991-03-15 | 1993-09-24 | Mitsubishi Heavy Ind Ltd | Shielding gas welding method for pipes |
| US5390846A (en) * | 1993-08-11 | 1995-02-21 | Thode; Jonathan E. | Welding gas purging apparatus and method |
| JPH0910933A (en) * | 1995-06-28 | 1997-01-14 | Ishikawajima Harima Heavy Ind Co Ltd | Water-soluble paper plug for welding piping |
| CN102601499A (en) * | 2012-03-22 | 2012-07-25 | 中国石油天然气第六建设公司 | Method for protecting welding of petrochemical stainless steel pipeline by local argon filling |
| CN103658938A (en) * | 2012-09-18 | 2014-03-26 | 张明林 | Right angle welding process for large-diameter pipeline |
| CN104128696A (en) * | 2014-06-30 | 2014-11-05 | 中国化学工程第十四建设有限公司 | Titanium pipeline argon arc welding process method |
-
2014
- 2014-11-11 CN CN201410632471.4A patent/CN104475933A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3736400A (en) * | 1971-08-31 | 1973-05-29 | Gilbreth Co | Apparatus for damming pipe ends for welding |
| JPH05245633A (en) * | 1991-03-15 | 1993-09-24 | Mitsubishi Heavy Ind Ltd | Shielding gas welding method for pipes |
| US5390846A (en) * | 1993-08-11 | 1995-02-21 | Thode; Jonathan E. | Welding gas purging apparatus and method |
| JPH0910933A (en) * | 1995-06-28 | 1997-01-14 | Ishikawajima Harima Heavy Ind Co Ltd | Water-soluble paper plug for welding piping |
| CN102601499A (en) * | 2012-03-22 | 2012-07-25 | 中国石油天然气第六建设公司 | Method for protecting welding of petrochemical stainless steel pipeline by local argon filling |
| CN103658938A (en) * | 2012-09-18 | 2014-03-26 | 张明林 | Right angle welding process for large-diameter pipeline |
| CN104128696A (en) * | 2014-06-30 | 2014-11-05 | 中国化学工程第十四建设有限公司 | Titanium pipeline argon arc welding process method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913128A (en) * | 2015-05-26 | 2015-09-16 | 中国五冶集团有限公司 | Turbine lubrication oil pipeline connecting method |
| CN105458471A (en) * | 2016-01-19 | 2016-04-06 | 四川石油天然气建设工程有限责任公司 | Pipeline connector welding method |
| CN108655545A (en) * | 2017-03-28 | 2018-10-16 | 五冶集团上海有限公司 | The water soluble paper touches the application in mouthful argon arc welding in long range industrial pipeline transition joint |
| CN108637513A (en) * | 2018-05-16 | 2018-10-12 | 四川石油天然气建设工程有限责任公司 | A kind of welding method of petroleum gas long-distance transmission pipeline |
| CN110842332A (en) * | 2019-09-27 | 2020-02-28 | 天津理工大学 | Aluminum-plastic composite air bag for pipeline welding argon filling plugging and preparation method thereof |
| CN110695496A (en) * | 2019-10-18 | 2020-01-17 | 中国电建集团山东电力建设第一工程有限公司 | Argon filling method for high alloy steel header pipe seat weld crater and welding method |
| CN110899912A (en) * | 2019-10-29 | 2020-03-24 | 沪东中华造船(集团)有限公司 | Argon filling method for argon arc welding butt joint of pipelines |
| CN112792444A (en) * | 2020-09-17 | 2021-05-14 | 葫芦岛渤船工贸通和防腐有限公司 | Method for welding reversing interface of steam pipeline and main engine |
| CN114952062A (en) * | 2022-06-20 | 2022-08-30 | 北京卅伯曼科技有限公司 | Protective welding method for medical gas pipeline |
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Application publication date: 20150401 |