CN104801875A - Stainless steel tube active tungsten argon arc weld groove and processing method - Google Patents
Stainless steel tube active tungsten argon arc weld groove and processing method Download PDFInfo
- Publication number
- CN104801875A CN104801875A CN201410568781.4A CN201410568781A CN104801875A CN 104801875 A CN104801875 A CN 104801875A CN 201410568781 A CN201410568781 A CN 201410568781A CN 104801875 A CN104801875 A CN 104801875A
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- Prior art keywords
- stainless steel
- steel tube
- groove
- activate
- arc welding
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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
- 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
- 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
- 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
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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 discloses a stainless steel tube active tungsten argon arc weld groove and processing method. The groove is a local beveled plane formed at the end of a stainless steel tube, the beveled plane and stainless steel tube end intersection line is a straight line, the beveled plane and stainless steel tube outer wall intersection line is an arc, and the middle point of the straight line is the deepest position of the groove. The stainless steel tube active tungsten argon arc weld processing method comprises the steps of a. processing the groove in one end of the stainless steel tube; b. coating active agents in the region from the tube opening of the end of the stainless steel tube, where the groove is formed, to the outer wall beyond the opening; c. performing arcing at the deepest position of the groove and welding the whole circumference of the stainless steel tube along the same direction. By means of the groove and the processing method, the stainless steel tube active tungsten argon arc weld groove is formed, arcing is performed at the deepest position of the groove, the thickness at the arcing positions becomes small, and accordingly, the arcing point can be welded through completely easily, and the incomplete welding defect cannot occur easily.
Description
Technical field
The present invention relates to a kind of stainless steel tube activate argon tungsten-arc welding groove, the invention still further relates to a kind of stainless steel tube activate argon tungsten-arc welding processing method.
Background technology
The solder technology of stainless steel tube is most important interconnection technique in product building course, how to ensure stainless steel tube welding quality, and raising welding efficiency becomes the target that relevant unit is pursued jointly.Technique stainless steel welded is at present mainly the welding manner of the welding of stainless steel bevel and activate.Though adopt bevelled welding manner to ensure welding quality, be the increase in one operation and add filling weight metal, this considerably increases expending of on-the-spot man power and material; Stainless steel tube activate argon tungsten-arc welding (A-TIG) is applied by increasing production person as one efficient argon arc welding technology, and this welding method can realize the object that the even thicker stainless steel tube square groove of 8mm directly welds.But in actual applications, stainless steel tube wall thickness 6mm and above time, welding arcing point is easy to occur lack of penetration weld defect.
Disclosed in described background technology part, above-mentioned information is only for strengthening the understanding to background of the present invention, and therefore it can comprise the information do not formed prior art known to persons of ordinary skill in the art.
Summary of the invention
One object of the present invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of stainless steel tube activate argon tungsten-arc welding groove not easily producing incomplete penetration defect;
Another object of the present invention is to provide a kind of stainless steel tube activate argon tungsten-arc welding processing method.
Additional aspect of the present invention and advantage will partly be set forth in the following description, and partly will become obvious from description, or can the acquistion by practice of the present invention.
According to an aspect of the present invention, a kind of stainless steel tube activate argon tungsten-arc welding groove, described groove is cut sth. askew plane in the local being formed at described stainless steel tube end, the intersection of the end face of described cut sth. askew plane and described stainless steel tube is straight line, be camber line with the intersection of the outside wall surface of described stainless steel tube, the mid point of described straight line is the bosom of this groove.
According to an embodiment of the present invention, the length of described straight line is 20mm-35mm.
According to an embodiment of the present invention, the length of described straight line is 30mm.
According to an embodiment of the present invention, the angle between described groove and the end face of stainless steel tube is 20 °-30 °.
According to an embodiment of the present invention, the angle between described groove and the end face of stainless steel tube is 25 °.
According to an embodiment of the present invention, the distance between the bosom of described groove and the inwall of this stainless steel tube is not more than 5mm.
According to another aspect of the present invention, a kind of stainless steel tube activate argon tungsten-arc welding processing method, comprises the steps:
A. at the groove of stainless steel tube one end processing as described in any one of claim 1 to 6;
B. activating agent is smeared on the outside wall surface region outside groove by this end mouth of pipe place being processed with groove at stainless steel tube;
C. stainless steel tube complete cycle to be welded along same direction in the starting the arc of groove bosom.
According to an embodiment of the present invention, also comprised before step a: step a1: be processed with chamfering in the end of one end to be welded of stainless steel tube.
As shown from the above technical solution, advantage of the present invention and good effect are:
By arranging stainless steel tube activate argon tungsten-arc welding groove of the present invention, and in the starting the arc of groove bosom, the lower thickness at arcing point place, thus make arcing point more easily by complete penetration, not easily there is incomplete penetration defect.
Accompanying drawing explanation
Describe its example embodiment in detail by referring to accompanying drawing, above-mentioned and further feature of the present invention and advantage will become more obvious.
Fig. 1 is the perspective view of the stainless steel tube being processed with groove of the present invention;
Fig. 2 is the top view of stainless steel tube shown in Fig. 1;
Fig. 3 is the front view of Fig. 2;
Fig. 4 is the sectional view of Fig. 3 along the cutting of A-A line.
Detailed description of the invention
More fully example embodiment is described referring now to accompanying drawing.But example embodiment can be implemented in a variety of forms, and should not be understood to be limited to embodiment set forth herein; On the contrary, these embodiments are provided to make the present invention comprehensively with complete, and the design of example embodiment will be conveyed to those skilled in the art all sidedly.Reference numeral identical in figure represents same or similar structure, thus will omit their detailed description.
As shown in Figures 1 to 4, the invention discloses a kind of stainless steel tube activate argon tungsten-arc welding groove, this groove 2 is cut sth. askew plane in the local being formed at described stainless steel tube 1 end, the intersection of the end face of this cut sth. askew plane and stainless steel tube 1 is straight line, be camber line with the intersection of the outside wall surface of stainless steel tube 1, the mid point of this straight line is the bosom of this groove.When welding, can in the bosom of this groove 2 as the arcing point starting the arc.Now, the thickness at arcing point place is lower, and being thus easy to just can complete penetration, not easily produces incomplete penetration defect.
Groove 2 can machine at welding scene.When finished edge 2, construction worker directly polishes at the outer rim place of the end face of stainless steel tube 1 with abrasive machine, and polishing shape is the plane of a local dip.For the stainless steel tube 1 of various outer diameter, the size parameter of groove 2 can be selected within the specific limits, successfully can complete weld job.See Fig. 3, the length L of straight line is preferably 20mm-35mm.Within the scope of this, the bonding machine starting the arc is more convenient, and welding quality is very high.In other embodiments of the present invention, the length L of straight line more preferably 30mm.
Angle α between the end face of groove 2 and stainless steel tube 1 is preferably set to 20 °-30 °, in this angular range, when operator polishes with abrasive machine, can convenient working, and also the amount removing material on stainless steel tube 1 is also smaller.In other embodiments of the invention, the end face angle more preferably 25 ° between the two of groove 2 and stainless steel tube 1, like this can more convenient field operation.
In order to ensure the effect that can both reach complete penetration when arcing point place welds, as shown in Figure 4, the distance h arranged in embodiments of the present invention between the bosom of groove 2 and the inwall of this stainless steel tube 1 is not more than 5mm.Like this, when the bosom starting the arc at groove 2, just complete penetration can be reached.
The embodiment of the invention also discloses a kind of stainless steel tube activate argon tungsten-arc welding processing method, comprise the steps:
A. groove 2 disclosed in the present embodiment is processed in stainless steel tube 1 one end; Form adding directly to polish at the scene with abrasive machine according to aforesaid method man-hour.
B. activating agent is smeared on the outside wall surface region outside groove 2 by this end mouth of pipe place being processed with groove 2 at stainless steel tube 1; When smearing activating agent, activating agent should be avoided to spread upon groove 2 on the surface.
C. stainless steel tube 1 complete cycle to be welded along same direction in the groove 2 bosom starting the arc.After groove 2 starting the arc, operator along same direction, namely can weld along counter clockwise direction stainless steel tube 1 complete cycle with welding gun always clockwise or always.After welding gun has welded one week around stainless steel tube 1 outside wall surface, the arcing point in groove 2 will be come back to, now indicate that complete cycle has welded.
In addition, carry out smoothly for the ease of welding processing, can also step a1 be comprised before step a: be processed with chamfering 3 as shown in Figures 3 and 4 in the end of one end to be welded of stainless steel tube 1.Because stainless steel tube 1 is when welding, its mouth of pipe needs to align with other welded part, and now the gap at mouth of pipe place is very little, cannot see this gap clearly after construction worker brings protective glasses, may cause being partially welded.After chamfering, construction worker can locate the gap at mouth of pipe place by this chamfering 3, thus completes welding smoothly.
In sum, the groove 2 of the embodiment of the present invention is only local groove, offer compared with complete annular groove with prior art at stainless steel tube mouth of pipe place, have easy to process, saving and fill weight metal shortening retaining wall on slope and weld time, improving the advantage of welding efficiency, by offering this groove 2, also assures that arcing point complete penetration, considerably improve welding quality.
Below illustrative embodiments of the present invention is illustrate and described particularly.Should be appreciated that, the invention is not restricted to disclosed embodiment, on the contrary, the invention is intended to contain and be included in various amendment in the spirit and scope of claims and equivalent arrangements.
Claims (8)
1. a stainless steel tube activate argon tungsten-arc welding groove, it is characterized in that: described groove is cut sth. askew plane in the local being formed at described stainless steel tube end, the intersection of the end face of described cut sth. askew plane and described stainless steel tube is straight line, be camber line with the intersection of the outside wall surface of described stainless steel tube, the mid point of described straight line is the bosom of this groove.
2. stainless steel tube activate argon tungsten-arc welding groove according to claim 1, is characterized in that: the length of described straight line is 20mm-35mm.
3. stainless steel tube activate argon tungsten-arc welding groove according to claim 2, is characterized in that: the length of described straight line is 30mm.
4. stainless steel tube activate argon tungsten-arc welding groove according to claim 1, is characterized in that: the angle between described groove and the end face of stainless steel tube is 20 °-30 °.
5. stainless steel tube activate argon tungsten-arc welding groove according to claim 4, is characterized in that: the angle between described groove and the end face of stainless steel tube is 25 °.
6. stainless steel tube activate argon tungsten-arc welding groove according to claim 1, is characterized in that: the distance between the bosom of described groove and the inwall of this stainless steel tube is not more than 5mm.
7. a stainless steel tube activate argon tungsten-arc welding processing method, is characterized in that, comprise the steps:
A. at the groove of stainless steel tube one end processing as described in any one of claim 1 to 6;
B. activating agent is smeared on the outside wall surface region outside groove by this end mouth of pipe place being processed with groove at stainless steel tube;
C. stainless steel tube complete cycle to be welded along same direction in the starting the arc of groove bosom.
8. stainless steel tube activate argon tungsten-arc welding processing method according to claim 7, is characterized in that: also comprised before step a:
Step a1: be processed with chamfering in the end of one end to be welded of stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410568781.4A CN104801875B (en) | 2014-10-22 | 2014-10-22 | Stainless steel tube activates argon tungsten-arc welding groove and processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410568781.4A CN104801875B (en) | 2014-10-22 | 2014-10-22 | Stainless steel tube activates argon tungsten-arc welding groove and processing method |
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| CN104801875A true CN104801875A (en) | 2015-07-29 |
| CN104801875B CN104801875B (en) | 2017-12-01 |
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| CN201410568781.4A Active CN104801875B (en) | 2014-10-22 | 2014-10-22 | Stainless steel tube activates argon tungsten-arc welding groove and processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328492A (en) * | 2019-05-23 | 2019-10-15 | 中国人民解放军第五七一九工厂 | A kind of aero-turbine rear housing supporting plate long crack A-TIG weldering restorative procedure |
| CN111037063A (en) * | 2019-12-26 | 2020-04-21 | 江苏利柏特股份有限公司 | Manual seamless deep-melting TIG (tungsten inert gas) welding process for SA-312TP304L stainless steel |
Citations (5)
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| CN1814387A (en) * | 2006-02-24 | 2006-08-09 | 中国有色金属工业第六冶金建设公司金属结构厂 | 12Cr1MoV alloy steel pipe welding method |
| US20100206850A1 (en) * | 2007-06-26 | 2010-08-19 | V & M Deutschland Gmbh | Method and device for connecting thick-walled metal workpieces by welding |
| JP2011177769A (en) * | 2010-03-03 | 2011-09-15 | Aichi Sangyo Kk | Tig welding method |
| CN203209858U (en) * | 2013-04-28 | 2013-09-25 | 杭州富尔顿热能设备有限公司 | Direction-variable groove of annular butt welding seam |
| CN104043894A (en) * | 2014-07-01 | 2014-09-17 | 广东省工业技术研究院(广州有色金属研究院) | Method for improving welding efficiency of narrow-gap argon tungsten-arc welding |
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2014
- 2014-10-22 CN CN201410568781.4A patent/CN104801875B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1814387A (en) * | 2006-02-24 | 2006-08-09 | 中国有色金属工业第六冶金建设公司金属结构厂 | 12Cr1MoV alloy steel pipe welding method |
| US20100206850A1 (en) * | 2007-06-26 | 2010-08-19 | V & M Deutschland Gmbh | Method and device for connecting thick-walled metal workpieces by welding |
| JP2011177769A (en) * | 2010-03-03 | 2011-09-15 | Aichi Sangyo Kk | Tig welding method |
| CN203209858U (en) * | 2013-04-28 | 2013-09-25 | 杭州富尔顿热能设备有限公司 | Direction-variable groove of annular butt welding seam |
| CN104043894A (en) * | 2014-07-01 | 2014-09-17 | 广东省工业技术研究院(广州有色金属研究院) | Method for improving welding efficiency of narrow-gap argon tungsten-arc welding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328492A (en) * | 2019-05-23 | 2019-10-15 | 中国人民解放军第五七一九工厂 | A kind of aero-turbine rear housing supporting plate long crack A-TIG weldering restorative procedure |
| CN111037063A (en) * | 2019-12-26 | 2020-04-21 | 江苏利柏特股份有限公司 | Manual seamless deep-melting TIG (tungsten inert gas) welding process for SA-312TP304L stainless steel |
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| CN104801875B (en) | 2017-12-01 |
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