CN102744503A - Tungsten argon arc welding method using gas transmission activator - Google Patents
Tungsten argon arc welding method using gas transmission activator Download PDFInfo
- Publication number
- CN102744503A CN102744503A CN2012102422333A CN201210242233A CN102744503A CN 102744503 A CN102744503 A CN 102744503A CN 2012102422333 A CN2012102422333 A CN 2012102422333A CN 201210242233 A CN201210242233 A CN 201210242233A CN 102744503 A CN102744503 A CN 102744503A
- Authority
- CN
- China
- Prior art keywords
- welding
- activating agent
- tungsten argon
- gas
- arc welding
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a tungsten argon arc welding method using a gas transmission activator, wherein an introduction mode for active elements is changed, the activator is transmitted into a welding protection gas via an automatic powder transmission device, and the activator is introduced in a welding electric arc and a molten pool for welding by the protection gas; and by utilizing the method, the welding electric arc can be remarkably shrunk, the flowing direction of the molten pool is changed, and the penetration of welding seams is increased exponentially. Compared with the traditional active tungsten argon arc welding method, the penetration of the welding seams is increased exponentially while good formation for the surfaces of the welding seams is ensured via the method; moreover, the ingredients and structures of the welding seams can be controlled, and the mechanical property of the welding seams can be improved by changing the ingredients of the activator; simultaneously, the full automation of the welding seaming process can be realized, and the production efficiency can be increased.
Description
Technical field
[0001] the present invention relates to activating gas tungsten argon arc welding method.
Background technology
[0002] TIG weldering, i.e. argon tungsten-arc welding is the representative of high-quality welding in the modern equipment manufacture.But because of its single-pass welding fusion penetration is more shallow, generally be no more than 4 mm, thick plates needs bevel to carry out multi-pass welding, and production process is loaded down with trivial details, and cost is high, and production efficiency is low, has therefore limited the application of this welding method.
In the last few years, active TIG welding had caused worldwide extensive concern, and it significantly increases fusion penetration through in welding process, introducing active element.In the world; The well-known research institutions such as (JWRI) of welding Science Institute that comprises Ukraine's crust institute of welding (PWI), U.S. Edison research institute (EWI), Britain's institute of welding (TWI) and Osaka, Japan university all specializes in, and the domestic units such as Harbin Institute of Technology, Lanzhou University of Science & Technology and Dalian University of Technology that comprise have also all carried out correlative study.
At present, the introducing mode of active element mainly is divided into two big types, and one type is through active gases, and another kind of is through at mother metal surface-coated activating agent.The former has two kinds of implementations, and a kind of is through active mist (inert gas and oxygen-content active gas O
2Or CO
2Mist), another kind is to adopt layering gas, internal layer feeds inert protective gas (Ar or He), outer gas then feeds the gas (O that contains active element O
2Or CO
2).O in welding process
2Or CO
2Under the effect of electric arc, decomposite monatomic O and be adsorbed onto weld pool surface; Introduce the O element with this; The surface tension temperature coefficient of molten pool metal is just being become by negative; The molten pool metal ecto-entad flows, thereby the heat that makes the electric arc input reaches the purpose of remarkable increase fusion penetration more effectively to the transmission of bottom, molten bath.Can not in welding process, introduce alloying element yet this active element is introduced mode, be difficult to improve its tissue and performance through the composition of regulating weld metal.The latter applies the very thin surfactant of one deck at the good surface of the work of polishing before the weldering, and welding arc is shunk, and the flow direction of molten pool metal changes, and weld penetration significantly increases.This active element is introduced mode can regulate the tissue and the composition of weld seam through changing bioactive agent composition, improves the mechanical property of weld seam.But this method need increase by one activating agent applies operation, and the activating agent applied thickness can not accurately control, thereby has limited its range of application, and this also is the main cause that this method does not obtain wide range of industrial applications.
Summary of the invention
The tungsten argon arc welding method that the purpose of this invention is to provide a kind of gas delivery of active agents.
The present invention is a kind of tungsten argon arc welding method of gas delivery of active agents, the steps include:
(1) before the tungsten argon arc welding, at first heating removes the moisture and the contained crystallization water of activating agent itself of deactivators absorption, grinds and screening, processes the activating agent powders A;
(2), the pipeline of the protective gas B on powder feeder and the welding gun is linked to each other the activating agent of handling well the powder feeder of packing into;
Delivery of active agents when (3) welding begins, the activating agent powders A gets into the coupled system of electric arc C and molten bath D under the conveying of welding protection gas B, and welding finishes promptly to stop to carry, and promptly gets gas and carries the activating gas tungsten argon-arc welding seam.
Usefulness of the present invention is:
1, compare with traditional active TIG weldering, fusion penetration can be multiplied when the assurance appearance of weld is good.2, through changing the composition of activating agent, can control the composition and the tissue of weld seam, improve the mechanical property of weld seam.3, operability is good, can realize the full-automation of welding process, enhances productivity.
Description of drawings
Fig. 1 is the sketch map that activating agent of the present invention gets into electric arc-molten bath system, and A is the activating agent powder among the figure, and B is a welding protection gas, and C is a welding arc, and D is the molten bath; Fig. 2 is the electric arc shape appearance figure of common AC-TIG WELDING weldering; Fig. 3 is employing MnCl of the present invention
2The electric arc shape appearance figure of activating agent; Fig. 4 is the face of weld picture of common AC-TIG WELDING weldering, and Fig. 5 is employing MnCl of the present invention
2The face of weld picture of activating agent, the seam cross-section figure of the common AC-TIG WELDING weldering of Fig. 6, Fig. 7 is employing MnCl of the present invention
2The seam cross-section figure of activating agent;
Fig. 8 is for adopting the face of weld figure of Te activating agent, and Fig. 9 is for adopting AlF
3The face of weld figure of activating agent, Figure 10 is for adopting V
2O
5The face of weld figure of activating agent, Figure 11 is for adopting the seam cross-section figure of Te activating agent, and Figure 12 is for adopting AlF
3The seam cross-section figure of activating agent, Figure 13 is for adopting V
2O
5The seam cross-section figure of activating agent, Figure 14 is for adopting V
2O
5The front shape appearance figure of the weld seam tensile sample fracture of activating agent.
The specific embodiment
The present invention is a kind of tungsten argon arc welding method of gas delivery of active agents, the steps include:
(1) before the tungsten argon arc welding, at first heating removes the moisture and the contained crystallization water of activating agent itself of deactivators absorption, grinds and screening, processes the activating agent powders A;
(2), the pipeline of the protective gas B on powder feeder and the welding gun is linked to each other the activating agent of handling well the powder feeder of packing into;
Delivery of active agents when (3) welding begins, the activating agent powders A gets into the coupled system of electric arc C and molten bath D under the conveying of welding protection gas B, and welding finishes promptly to stop to carry, and promptly gets gas and carries the activating gas tungsten argon-arc welding seam.
Said automatic powder feeding device adopts drive of motor, can be through the adjusting motor speed, and the transporting velocity of regulating activating agent, its transporting velocity is: 0.1g/min-5g/min.
The activating agent of selecting for use is a halide, or oxide, or simple substance, or the mixture of above material.
Embodiment one
In the present embodiment, adopt AC-TIG WELDING weldering and AC-TIG WELDING welding method of the present invention to carry out surperficial melting welding respectively, shown in table 1 and table 2, activating agent of the present invention is MnCl to welding condition respectively
2The electric arc pattern of TIG weldering and TIG of the present invention weldering respectively as shown in Figures 2 and 3.Than the TIG weldering, TIG weldering electric arc of the present invention obviously shrinks, and weldingvoltage has increased about 4 V.
The common AC-TIG WELDING welder of table 1 parameter of planting
The table 2 TIG welder of the present invention parameter of planting
TIG weldering and employing MnCl of the present invention
2The TIG welding line surface of activating agent is respectively like Fig. 4 and shown in Figure 5, and TIG welding line shaping surface of the present invention is good.Its seam cross-section is respectively like Fig. 6 and shown in Figure 7.TIG weldering gained weld penetration is 1.81 mm, and molten wide is 6.02 mm, and depth-to-width ratio is 0.30, and TIG weldering gained weld penetration of the present invention is 5.47 mm, and molten wide is 8.91 mm, and welding seam deep width ratio is 0.61.The fusion penetration of TIG welding line of the present invention and depth-to-width ratio are respectively 3.02 times and 2.03 times of TIG weldering.
Embodiment two
In the present embodiment, adopt TIG welding method of the present invention to carry out surperficial melting welding, welding condition is as shown in table 2, and the activating agent of employing is respectively Te powder, AlF
3And V
2O
5Face of weld like Fig. 8, Fig. 9 and shown in Figure 10, wherein adopts AlF respectively
3The appearance of weld of activating agent is comparatively good.Seam cross-section is respectively like Figure 11, Figure 12 and shown in Figure 13, and adopting the weld penetration of Te activating agent is 3.35 mm, and molten wide is 8.35 mm, and welding seam deep width ratio is 0.40; Adopt AlF
3The weld penetration of activating agent is 5.05 mm, and molten wide is 7.28 mm, and welding seam deep width ratio is 0.69; Adopt V
2O
5The weld penetration of activating agent is 5.14 mm, and molten wide is 9.77 mm, and welding seam deep width ratio is 0.53.Adopt Te activating agent, AlF
3Activating agent and V
2O
5The GTFA-TIG weldering fusion penetration of activating agent is respectively 1.85 times, 2.79 times and 2.84 times of common AC-TIG WELDING weldering, and its welding seam deep width ratio is respectively 1.33 times, 2.3 times and 1.77 times of common AC-TIG WELDING weldering.
Embodiment three
In the present embodiment, adopt TIG welding method of the present invention to carry out surperficial melting welding, welding condition is as shown in table 2, and the activating agent of selecting for use is V
2O
5Butt welded seam carries out x-ray inspection, does not find pore, slag inclusion, crackle and bar defect, and commenting the sheet result is the I level.Carry out weld metal cross directional stretch performance test by the GB/T228-2002 standard, shown in figure 14, the test specimen fracture position is positioned at weld heat-affected zone, and the maximum tensile strength is 115.4Mpa, basic identical with base metals.
Claims (3)
1. the tungsten argon arc welding method of a gas delivery of active agents the steps include:
(1) before the tungsten argon arc welding, at first heating removes the moisture and the contained crystallization water of activating agent itself of deactivators absorption, grinds and screening, processes activating agent powder (A);
(2), the pipeline of the protective gas (B) on powder feeder and the welding gun is linked to each other the activating agent of handling well the powder feeder of packing into;
Delivery of active agents when (3) welding begins, activating agent powder (A) get into the coupled system in electric arc (C) and molten bath (D) under the conveying of welding protection gas (B), welding finishes promptly to stop to carry, and promptly get gas conveying activating gas tungsten argon-arc welding seam.
2. according to the tungsten argon arc welding method of the described gas delivery of active agents of claim 1; It is characterized in that said automatic powder feeding device adopts drive of motor; Can be through the adjusting motor speed, the transporting velocity of regulating activating agent, its transporting velocity is: 0.1g/min-5g/min.
3. according to the tungsten argon arc welding method of the described gas delivery of active agents of claim 1, it is characterized in that the activating agent of selecting for use is a halide, or oxide, or simple substance, or the mixture of above material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210242233.3A CN102744503B (en) | 2012-07-13 | 2012-07-13 | Tungsten argon arc welding method using gas transmission activator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210242233.3A CN102744503B (en) | 2012-07-13 | 2012-07-13 | Tungsten argon arc welding method using gas transmission activator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102744503A true CN102744503A (en) | 2012-10-24 |
| CN102744503B CN102744503B (en) | 2014-06-25 |
Family
ID=47025189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210242233.3A Active CN102744503B (en) | 2012-07-13 | 2012-07-13 | Tungsten argon arc welding method using gas transmission activator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102744503B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317258A (en) * | 2013-07-12 | 2013-09-25 | 兰州理工大学 | Active agent for aluminum alloy active TIG welding and using method |
| CN104668700A (en) * | 2015-02-09 | 2015-06-03 | 北京科技大学 | Method and device for assistant brazing of airborne type brazing flux |
| CN107570845A (en) * | 2017-10-11 | 2018-01-12 | 兰州理工大学 | A kind of automatic activating-tungsten inert gas welding connects method |
| CN113843578A (en) * | 2021-11-11 | 2021-12-28 | 敦化市拜特科技有限公司 | Method and equipment for repairing sheet steel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60170580A (en) * | 1984-02-14 | 1985-09-04 | Mitsubishi Heavy Ind Ltd | Deoxidation welding method |
| JPS63299858A (en) * | 1987-05-30 | 1988-12-07 | Ishikawajima Harima Heavy Ind Co Ltd | Method for welding super heat resistant material and the like |
| US20040159640A1 (en) * | 2003-01-06 | 2004-08-19 | Tetsu Innami | Plasma powder welding device and its welding method |
| CN1555953A (en) * | 2003-12-31 | 2004-12-22 | 天津大学 | Welding system of gas shielding welding and its welding method |
| CN1657214A (en) * | 2005-03-23 | 2005-08-24 | 天津大学 | Welding system of gas-powder shielded welding and its method |
-
2012
- 2012-07-13 CN CN201210242233.3A patent/CN102744503B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60170580A (en) * | 1984-02-14 | 1985-09-04 | Mitsubishi Heavy Ind Ltd | Deoxidation welding method |
| JPS63299858A (en) * | 1987-05-30 | 1988-12-07 | Ishikawajima Harima Heavy Ind Co Ltd | Method for welding super heat resistant material and the like |
| US20040159640A1 (en) * | 2003-01-06 | 2004-08-19 | Tetsu Innami | Plasma powder welding device and its welding method |
| CN1555953A (en) * | 2003-12-31 | 2004-12-22 | 天津大学 | Welding system of gas shielding welding and its welding method |
| CN1657214A (en) * | 2005-03-23 | 2005-08-24 | 天津大学 | Welding system of gas-powder shielded welding and its method |
Non-Patent Citations (1)
| Title |
|---|
| 黄勇等: "活性剂对镁合金交流A-TIG焊的影响", 《焊接学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317258A (en) * | 2013-07-12 | 2013-09-25 | 兰州理工大学 | Active agent for aluminum alloy active TIG welding and using method |
| CN103317258B (en) * | 2013-07-12 | 2015-07-08 | 兰州理工大学 | Active agent for aluminum alloy active TIG welding |
| CN104668700A (en) * | 2015-02-09 | 2015-06-03 | 北京科技大学 | Method and device for assistant brazing of airborne type brazing flux |
| CN107570845A (en) * | 2017-10-11 | 2018-01-12 | 兰州理工大学 | A kind of automatic activating-tungsten inert gas welding connects method |
| CN113843578A (en) * | 2021-11-11 | 2021-12-28 | 敦化市拜特科技有限公司 | Method and equipment for repairing sheet steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102744503B (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104625486B (en) | The welding method of gas protective arc welding filling soldering flux wire and pole cryogenic steel and the manufacture method of welding point | |
| CN103862183B (en) | A kind of stainless steel clad plate high-efficiency welding method | |
| CN101362249A (en) | Girth welding method of duplex stainless steel bimetal composite pipe | |
| CN104801848B (en) | Method for adjusting and controlling brittle phase in titanium/aluminum dissimilar metal friction stir welding joint | |
| JP5236566B2 (en) | Circumferential welding method for fixed steel pipes | |
| CN104028917A (en) | Flux-cored wire for fusion welding butt joint of titanium-steel composite board and preparation method of flux-cored wire | |
| CN103394815B (en) | A kind of method of circumferential weld laser-GMA composite welding | |
| CN102744503B (en) | Tungsten argon arc welding method using gas transmission activator | |
| CN106181043A (en) | A kind of welding method improving hybrid Laser-Arc Welding process stability | |
| CN103817448A (en) | Gas shielding device for titanium alloy laser-MIG (metal inert gas welding) hybrid welding | |
| JP2016537201A5 (en) | ||
| US9511454B2 (en) | Welding activated flux for structural alloy steels | |
| CN104002029B (en) | A kind of improved flat board butt joint submerged-arc welding | |
| CN108057943A (en) | A kind of automatic submerged-arc welding method of Langaloy and low-alloy steel | |
| CN105081574B (en) | A kind of layering pulse laser reduces the method that invar steel welds hot cracking tendency | |
| CN108247228A (en) | A kind of thin-wall stainless steel intelligent and high-efficiency welding method | |
| Reisgen et al. | Laser beam submerged arc hybrid welding | |
| CN108188582A (en) | A kind of compound welding with filler wire method of laser-electric arc for being used to prepare magnesium/steel dissimilar metal tailor welded | |
| CN102019488B (en) | Electric arc fusion welding-braze welding method of niobium and steel | |
| CN104923935A (en) | Method for welding large-thickness slabs having high alloy content | |
| CN102794552A (en) | Welding method of composite metal board | |
| CN107570845A (en) | A kind of automatic activating-tungsten inert gas welding connects method | |
| CN105195866B (en) | A kind of full-automatic root bead method of the pipe end of composite bimetal pipe | |
| CN106334859B (en) | The method for welding high-iron carriage aluminium alloy floor using rush-harvesting and rush-planting A-MIG | |
| CN110732748B (en) | Rectangular cylinder welding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |