CN107009002A - The accurate control automatic argon arc pipe welding method of stainless steel pipe - Google Patents
The accurate control automatic argon arc pipe welding method of stainless steel pipe Download PDFInfo
- Publication number
- CN107009002A CN107009002A CN201710157731.0A CN201710157731A CN107009002A CN 107009002 A CN107009002 A CN 107009002A CN 201710157731 A CN201710157731 A CN 201710157731A CN 107009002 A CN107009002 A CN 107009002A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel pipe
- weldment
- argon arc
- accurate control
- 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.)
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
-
- 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
- B23K2101/06—Tubes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Quality & Reliability (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a kind of accurate control automatic argon arc pipe welding method of stainless steel pipe, comprise the following steps：From two stainless steel pipes as the first weldment and the second weldment, stainless steel pipe inwall and surface degreasing are carried out respectively；Conduit is dried；Place's end face to be welded, surfaces externally and internally are docked to the first to-be-welded pieces and the second weldment to carry out being mechanical grinding to visible metallochrome；Spot welding positioning is carried out to the weld seam of the first to-be-welded pieces and the second weldment；The fixture block frocks of Φ 3 are selected, weldment is clamped in pipe soldering turret；Handle tungsten electrode tip；Tungsten electrode and adjustment tungsten electrode tip height are installed；Welding process subangle sets curent change.The present invention solves the weldering of stainless steel pipe Φ 3*1mm automatic argon arc pipes, and welding point meets the I grade requirements of QJ2865 97, and conduit is penetrated and do not blocked up, and tested by weld properties, face of weld is recessed and X-ray examination and weld seam sealing propertytest.
Description
Technical field
Welded the present invention relates to Hall electric propulsion general assembly with the automatic argon arc pipe of stainless steel pipe, in particular it relates to a kind of accurate
Control the automatic argon arc pipe welding methods of stainless steel pipe Φ 3*1mm.
Background technology
Accurate and stabilization the automatic argon arc pipe welding line fusion penetrations of control stainless steel pipe Φ 3*1mm are always welding field
Difficult point and hot issue, should ensure that conduit weld seam is penetrated, and ensure that conduit is not blocked up again, and weldquality need to meet QJ2865-
97I grades of requirements.
According to conduit pressure-bearing operating mode, weld seam is subjected to the weld seam sealing inspection of " 2~5MPa helium is examined, and keeps 5min not reveal "
Look into.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of accurate control automatic argon arc of stainless steel pipe
Pipe welding method.
The present invention is realized by following scheme：
A kind of accurate control automatic argon arc pipe welding method of stainless steel pipe, comprises the following steps：
S1, from two stainless steel pipes as the first weldment and the second weldment, stainless steel pipe inwall is carried out respectively
And surface degreasing；
S2, oil removing is terminated after stainless steel pipe drying；
S3, dock that place's end face to be welded, surfaces externally and internally be mechanical grinding to the first to-be-welded pieces and the second weldment can
See metallochrome；
S4, the weld seam to the first to-be-welded pieces and the second weldment carry out spot welding positioning；
S5, the first to-be-welded pieces and the second weldment are fixed on after the fixture blocks of Φ 3 so that part axial bounce≤Φ to be welded
0.10mm；
S6, processing tungsten electrode tip；
S7, installation tungsten electrode and adjustment tungsten electrode tip height；
S8, welding process subangle set curent change.
Preferably, the step S4 is specially：In the case where positioning wedged block is spacing, by the first to-be-welded pieces and the second weldment
Weld seam symmetrically 2 points of positioning, end face or axial direction unfitness of butt joint≤0.10mm, gap≤0.10mm.
Preferably, the corresponding welding conditions of the step S4 are：6~10A of electric current, 4~8L/min of argon flow amount.
Preferably, the step S6 is specially：Tungsten electrode diameter of phi is 1mm, and tip is 30 °, tungsten electrode scaling loss and change in shape
It is required for polishing tungsten electrode tip to 30 ° with special equipment again, it is to avoid the change of shape causes arc shape to change, and influences electric arc
Power and the heat input to mother metal.
Preferably, the step 7 is specially：Tungsten electrode tip is placed in directly over workpiece place to be welded, apart from workpiece place to be welded
2~3mm of surface.
Preferably, the step S8 is specially：Speed of welding：8r/min；Frequency：70Hz；Pulsewidth 33%；Electric current base value：
4A；Three sections of welding process point, corresponding angle is 200 °, 360 °, 160 ° respectively, and current peak is 23A, 21A, 20A respectively；Weldering
In termination process, first stage peak point current act on when, stainless steel pipe formation molten bath, but and it is lack of penetration, belong to warm-up phase；The
When two-stage peak point current is acted on, stainless steel pipe 1mm wall thickness is gradually penetrated；Phase III peak point current is acted on, weld seam ending
Duan Nengliang gradually decays, and forms smooth, nonpitting appearance of weld.
Preferably, also comprise the following steps after the step S4：Quality examination is carried out to the solder joint of spot welding.
Preferably, also comprise the following steps：
Quality examination is carried out to weld seam, specifically, welding depression is no more than 0.1mm, does not allow undercut；Face of weld is not permitted
Perhaps there is visual visible crackle, stomata, tungsten inclusion and non-metallic inclusion；Weld seam does not allow to deposit through X-ray examination inside weld seam
In crackle, incomplete fusion and lack of penetration；Examined by 2~5MPa helium, the weld seam leak check for keeping 5min not reveal.
9th, the accurate control automatic argon arc pipe welding method of stainless steel pipe according to claim 1, its feature exists
In first to-be-welded pieces and the second to-be-welded pieces are stainless steel 1Cr18Ni9Ti Φ 3*1mm conduits.
Compared with prior art, the present invention has following beneficial effect：
1st, the present invention solves the automatic argon arc pipe weldering difficult points of small stainless steel pipe Φ 3*1mm, using double-round bond pattern,
Thermal weld stress amount is gradually reduced, it is ensured that welding process weldering leakage is stable, and weldquality meets QJ2865-97I grades of requirements, and passes through
Corresponding sealing examination；
2nd, present invention, avoiding the stainless steel that the defects such as lack of penetration, stomata, crackle, trailing end arc crater depression and crackle are produced
The technological parameter of the automatic argon arc pipe welderings of conduit Φ 3*1mm, had both ensured that conduit was penetrated, while ensureing that weld seam is not blocked up, met Hall electricity
Promote general assembly stainless steel pipe applying working condition demand；
3rd, spot-welding equipment and the fixture blocks of Φ 3 are used and clamping in the present invention, it is ensured that assembling shape before stainless steel pipe Φ 3*1mm welderings
State, end face or axial direction unfitness of butt joint≤0.10mm, weld is accepted rate is improved in gap≤0.10mm.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the flow chart that the embodiment of the present invention accurately controls the automatic argon arc pipe welding method of stainless steel pipe.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
As shown in figure 1, the embodiments of the invention provide a kind of accurate automatic argon arc pipe weldering welding side of control stainless steel pipe
Method, comprises the following steps：
S1, from two stainless steel 1Cr18Ni9Ti Φ 3*1mm conduits as the first weldment and the second weldment, enter respectively
Row stainless steel pipe inwall and surface degreasing；
S2, oil removing is terminated after stainless steel pipe drying；
S3, dock that place's end face to be welded, surfaces externally and internally be mechanical grinding to the first to-be-welded pieces and the second weldment can
See metallochrome；
S4, the weld seam to the first to-be-welded pieces and the second weldment carry out spot welding positioning, and corresponding welding condition is：
6~10A of electric current, 4~8L/min of argon flow amount；Specially：In the case where positioning wedged block is spacing, the first to-be-welded pieces and second are welded
Symmetrically 2 points of the positioning of the weld seam of part, end face or axial direction unfitness of butt joint≤0.10mm, gap≤0.10mm, and the solder joint of spot welding is carried out
Quality examination；S5, the first to-be-welded pieces and the second weldment are fixed on after the fixture blocks of Φ 3 so that part axial bounce to be welded≤
Φ0.10mm；
S6, processing tungsten electrode tip；Specially：Tungsten electrode diameter of phi is 1mm, and tip is 30 °, and tungsten electrode scaling loss and change in shape are all
Need to polish tungsten electrode tip to 30 ° with special equipment again, it is to avoid the change of shape causes arc shape to change, and influences arc force
And to the heat input of mother metal.
S7, installation tungsten electrode and adjustment tungsten electrode tip height；The step S7 is specially：Tungsten electrode tip is placed in workpiece to be welded
Directly over place, apart from workpiece 2~3mm of place surface to be welded；
S8, welding process subangle set curent change；Specially：Speed of welding：8r/min；Frequency：70Hz；Pulsewidth
33%；Electric current base value：4A；Three sections of welding process point, corresponding angle is 200 °, 360 °, 160 ° respectively, and current peak is respectively
23A、21A、20A；In welding process, first stage peak point current act on when, stainless steel pipe formation molten bath, but and it is lack of penetration,
Belong to warm-up phase；When second stage peak point current is acted on, stainless steel pipe 1mm wall thickness is gradually penetrated；Phase III peak value electricity
Stream is acted on, and weld seam ending section energy is gradually decayed, and forms smooth, nonpitting appearance of weld.
Quality examination is carried out to weld seam, specifically, welding depression is no more than 0.1mm, does not allow undercut；Face of weld is not permitted
Perhaps there is visual visible crackle, stomata, tungsten inclusion and non-metallic inclusion；Weld seam does not allow to deposit through X-ray examination inside weld seam
In crackle, incomplete fusion and lack of penetration；Examined by 2~5MPa helium, the weld seam leak check for keeping 5min not reveal.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (9)
1. a kind of accurate control automatic argon arc pipe welding method of stainless steel pipe, it is characterised in that comprise the following steps：
S1, from two stainless steel pipes as the first weldment and the second weldment, stainless steel pipe inwall and table are carried out respectively
Face oil removing；
S2, oil removing is terminated after stainless steel pipe drying；
S3, place's end face to be welded, surfaces externally and internally are docked to the first to-be-welded pieces and the second weldment carry out being mechanical grinding to visible gold
Belong to color；
S4, the weld seam to the first to-be-welded pieces and the second weldment carry out spot welding positioning；
S5, the first to-be-welded pieces and the second weldment are fixed on after the fixture blocks of Φ 3 so that part axial bounce≤Φ to be welded
0.10mm；
S6, processing tungsten electrode tip；
S7, installation tungsten electrode and adjustment tungsten electrode tip height；
S8, welding process subangle set curent change.
2. the accurate control automatic argon arc pipe welding method of stainless steel pipe according to claim 1, it is characterised in that institute
Stating step S4 is specially：In the case where positioning wedged block is spacing, by symmetrically 2 points of the positioning of the weld seam of the first to-be-welded pieces and the second weldment,
End face or axial direction unfitness of butt joint≤0.10mm, gap≤0.10mm.
3. the accurate control automatic argon arc pipe welding method of stainless steel pipe according to claim 1, it is characterised in that institute
Stating the corresponding welding conditions of step S4 is：6~10A of electric current, 4~8L/min of argon flow amount.
4. the accurate control automatic argon arc pipe welding method of stainless steel pipe according to claim 1, it is characterised in that institute
Stating step S6 is specially：Tungsten electrode diameter of phi is 1mm, and tip is 30 °, and tungsten electrode scaling loss and change in shape are required for being set with special again
Standby polishing tungsten electrode tip is to 30 °, it is to avoid the change of shape causes arc shape to change, and influences arc force and to the hot defeated of mother metal
Enter.
5. the automatic argon arc pipe welding methods of accurate control stainless steel pipe Φ 3*1mm according to claim 1, its feature
It is, the step 7 is specially：Tungsten electrode tip is placed in directly over workpiece place to be welded, apart from workpiece 2~3mm of place surface to be welded.
6. the accurate control automatic argon arc pipe welding method of stainless steel pipe according to claim 1, it is characterised in that institute
Stating step S8 is specially：Speed of welding：8r/min；Frequency：70Hz；Pulsewidth 33%；Electric current base value：4A；Three sections of welding process point,
Corresponding angle is 200 °, 360 °, 160 ° respectively, and current peak is 23A, 21A, 20A respectively；In welding process, the first stage
Peak point current act on when, stainless steel pipe formation molten bath, but and it is lack of penetration, belong to warm-up phase；Second stage peak point current is made
Used time, stainless steel pipe 1mm wall thickness is gradually penetrated；Phase III peak point current is acted on, and weld seam ending section energy is gradually decayed, shape
Into smooth, nonpitting appearance of weld.
7. the accurate control automatic argon arc pipe welding method of stainless steel pipe according to claim 1, it is characterised in that
Also comprise the following steps after the step S4：Quality examination is carried out to the solder joint of spot welding.
8. the accurate control automatic argon arc pipe welding method of stainless steel pipe according to claim 1, it is characterised in that also
Comprise the following steps：
Quality examination is carried out to weld seam, specifically, welding depression is no more than 0.1mm, does not allow undercut；Face of weld does not allow to deposit
In visual visible crackle, stomata, tungsten inclusion and non-metallic inclusion；Weld seam does not allow to exist inside weld seam and split through X-ray examination
Line, incomplete fusion and lack of penetration；Examined by 2~5MPa helium, the weld seam leak check for keeping 5min not reveal.
9. the accurate control automatic argon arc pipe welding method of stainless steel pipe according to claim 1, it is characterised in that institute
It is stainless steel 1Cr18Ni9Ti Φ 3*1mm conduits to state the first to-be-welded pieces and the second to-be-welded pieces.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710157731.0A CN107009002B (en) | 2017-03-16 | 2017-03-16 | The accurate control automatic argon arc pipe welding method of stainless steel pipe |
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| CN201710157731.0A CN107009002B (en) | 2017-03-16 | 2017-03-16 | The accurate control automatic argon arc pipe welding method of stainless steel pipe |
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| CN107009002B CN107009002B (en) | 2019-08-23 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234319A (en) * | 2017-07-14 | 2017-10-10 | 玉环县金龙欧浴洁具有限公司 | Thin plate corrugated stainless steel tubing pipe crimping welding procedure |
| CN108544117A (en) * | 2018-07-04 | 2018-09-18 | 中国原子能科学研究院 | A kind of welding method of superconducting cyclotron vacuum chamber |
| CN108941959A (en) * | 2018-08-14 | 2018-12-07 | 上海空间推进研究所 | A kind of method of accurate control Φ 3mm stainless steel pipe argonaut welding forming quality |
| CN109047998A (en) * | 2018-08-14 | 2018-12-21 | 上海空间推进研究所 | A kind of method of lifting system pipeline argonaut welding forming quality and production efficiency |
| CN110000452A (en) * | 2019-05-06 | 2019-07-12 | 上海空间推进研究所 | Propulsion system leads to argonaut welding tooling application method under class component protective atmosphere |
| CN110508909A (en) * | 2019-08-07 | 2019-11-29 | 哈电集团（秦皇岛）重型装备有限公司 | Stainless steel tube docks the welding system and method for automatic superimposed pulse single-run welding |
| CN108031950B (en) * | 2017-11-02 | 2021-07-20 | 中国航发哈尔滨东安发动机有限公司 | Circumferential welding method for thin-wall pipeline parts |
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| CN102489842A (en) * | 2011-12-07 | 2012-06-13 | 鞍山锅炉厂有限公司 | Argon tungsten-arc welding process for pearlite heat-resistant steel pipe and austenitic heat-resistant steel pipe |
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| CN104972213A (en) * | 2015-05-25 | 2015-10-14 | 北京控制工程研究所 | Installing and clamping tool and method for conducting capillary tube welding through installing and clamping tool |
| CN106312262A (en) * | 2016-10-20 | 2017-01-11 | 西安华杰管道有限公司 | TIG welding technique for butt welding of thin-walled stainless steel tubes |
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| JPH0352775A (en) * | 1989-07-20 | 1991-03-06 | Sumitomo Metal Ind Ltd | Circumferential welding method for stainless steel pipe |
| JP2003136242A (en) * | 2001-11-02 | 2003-05-14 | Babcock Hitachi Kk | Tig arc welding apparatus |
| US20040200881A1 (en) * | 2003-03-28 | 2004-10-14 | John Gandy | Method of manufacturing cold worked, high strength seamless CRA PIPE |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234319A (en) * | 2017-07-14 | 2017-10-10 | 玉环县金龙欧浴洁具有限公司 | Thin plate corrugated stainless steel tubing pipe crimping welding procedure |
| CN108031950B (en) * | 2017-11-02 | 2021-07-20 | 中国航发哈尔滨东安发动机有限公司 | Circumferential welding method for thin-wall pipeline parts |
| CN108544117A (en) * | 2018-07-04 | 2018-09-18 | 中国原子能科学研究院 | A kind of welding method of superconducting cyclotron vacuum chamber |
| CN108941959A (en) * | 2018-08-14 | 2018-12-07 | 上海空间推进研究所 | A kind of method of accurate control Φ 3mm stainless steel pipe argonaut welding forming quality |
| CN109047998A (en) * | 2018-08-14 | 2018-12-21 | 上海空间推进研究所 | A kind of method of lifting system pipeline argonaut welding forming quality and production efficiency |
| CN109047998B (en) * | 2018-08-14 | 2020-09-04 | 上海空间推进研究所 | Method for improving automatic argon arc welding forming quality and production efficiency of system pipeline |
| CN110000452A (en) * | 2019-05-06 | 2019-07-12 | 上海空间推进研究所 | Propulsion system leads to argonaut welding tooling application method under class component protective atmosphere |
| CN110508909A (en) * | 2019-08-07 | 2019-11-29 | 哈电集团（秦皇岛）重型装备有限公司 | Stainless steel tube docks the welding system and method for automatic superimposed pulse single-run welding |
| CN110508909B (en) * | 2019-08-07 | 2021-07-09 | 哈电集团（秦皇岛）重型装备有限公司 | Welding system and method for stainless steel pipe butt joint automatic superposition pulse single-pass welding |
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| Publication number | Publication date |
|---|---|
| CN107009002B (en) | 2019-08-23 |
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