CN104259631A - Hot wire TIG (tungsten inert gas) welding method - Google Patents
Hot wire TIG (tungsten inert gas) welding method Download PDFInfo
- Publication number
- CN104259631A CN104259631A CN201410480906.8A CN201410480906A CN104259631A CN 104259631 A CN104259631 A CN 104259631A CN 201410480906 A CN201410480906 A CN 201410480906A CN 104259631 A CN104259631 A CN 104259631A
- Authority
- CN
- China
- Prior art keywords
- welding
- wire
- welding wire
- welding method
- molten bath
- 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
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/404—Coated rods; Coated electrodes
-
- 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
Abstract
The invention discloses a hot wire TIG welding method. The method comprises coating a welding wire with a layer of heat-conducting insulating liquid, filling the welding wire at the position about 10 mm in front of a molten bath, electrifying the welding wires with a hot wire power source via a conducting block, and heating the welding wires to a certain temperature through resistance heat and enabling the welding wire to form an included angle of 40-60 degrees, and feeding the welding wire into the molten bath behind electric arcs. The hot wire TIG welding method can improve the stability of a welding process.
Description
Technical field
The present invention relates to a kind of welding technology field, particularly a kind of heating wire TIG welding method.
Background technology
Hot wire TIG welding welds the energy-efficient welding procedure of that basis grows up at traditional TIG in 1956, and its general principle is exactly carried out preheating to welding wire before welding wire sends into molten bath, the final object realizing welding.At present, at home and abroad industrial production heating wire TIG is applied in the high-end industrial departments such as pressure vessel, boiler, high temperature valve, pressure piping, petrochemical equipment, offshore oil production equipment, ordnance manufacture and Aerospace Engineering, heating wire TIG can be used for the welding of the materials such as carbon steel, low-alloy steel, stainless steel and titanium, prior art flows through welding wire magnetic field that electric current produces for heating wire TIG welding, electric arc magnetic blow-out can be affected and make longitudinal beat along weld seam, the stability of welding process can be affected.
Summary of the invention
Goal of the invention: the invention solves the problems referred to above, provides a kind of heating wire TIG welding method that welding process is stable.
Technical scheme: a kind of heating wire TIG welding method, comprises the following steps:
(1) welding wire is applied one deck thermally conductive and electrically resistive liquid outward;
(2) welding wire is filled in enters 8-10mm place before molten bath;
(3) welding wire and tungsten bar are the angle of 40-60 °;
(4) be energized to welding wire by conducting block by heater supply, welding wire heats by resistance heat;
(5) welding wire is sent in molten bath after electric arc, fusing base metals.
Concrete, the thermally conductive and electrically resistive liquid described in step (1) is a kind of fluorinated liquid.
Concrete, the diameter of the filler wire described in step (2) is at below 1mm.
Beneficial effect: the present invention compared with prior art, its advantage is on welding wire, to apply one deck thermal conductive insulator before welding wire sends into molten bath, welding wire can be heated by galvanization, but can not be subject to the impact of current field, eliminate arc blow phenomenon, welding process stability is higher.
Detailed description of the invention
Below in conjunction with detailed description of the invention, illustrate the present invention further.
Embodiment 1
The greasy dirt of filler wire and workpiece grooves and groove both side surface, moisture, dust and oxide-film etc. are removed with acetone or gasoline;
Welding wire is applied one deck thermally conductive and electrically resistive liquid outward, and this thermally conductive and electrically resistive liquid is a kind of fluorinated liquid;
Be filled in by welding wire and enter 8-10mm place before molten bath, the diameter of filler wire is at below 1mm;
Welding wire is energized by conducting block by heater supply, welding wire heats by resistance heat, heat conduction owing to being dielectric, so welding wire can be heated, when the size of welding current is 300A, select the tungsten bar of minor diameter (3.0-6.5mm), welding wire and tungsten bar are the angle of 40-60 °, and heating current can not exceed 60% of welding current;
Welding wire is sent in molten bath after electric arc, fusing base metals.
Embodiment 2
All the other are identical with embodiment 1, when difference is that welding current size is 600A, select the tungsten bar of larger diameter (6.5-13.5mm).
On welding wire, apply one deck thermal conductive insulator before welding wire is sent into molten bath by the present invention, welding wire can be heated by galvanization, but can not be subject to the impact of current field, eliminate arc blow phenomenon, welding process stability is higher.
Claims (3)
1. a heating wire TIG welding method, comprises the following steps:
(1) welding wire is applied one deck thermally conductive and electrically resistive liquid outward;
(2) welding wire is filled in enters 8-10mm place before molten bath;
(3) welding wire and tungsten bar are the angle of 40-60 °;
(4) be energized to welding wire by conducting block by heater supply, welding wire heats by resistance heat;
(5) welding wire is sent in molten bath after electric arc, fusing base metals.
2. a kind of heating wire TIG welding method according to claim 1, is characterized in that: the thermally conductive and electrically resistive liquid described in step (1) is a kind of fluorinated liquid.
3. a kind of heating wire TIG welding method according to claim 1, is characterized in that: the diameter of the filler wire described in step (2) is at below 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480906.8A CN104259631A (en) | 2014-09-19 | 2014-09-19 | Hot wire TIG (tungsten inert gas) welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480906.8A CN104259631A (en) | 2014-09-19 | 2014-09-19 | Hot wire TIG (tungsten inert gas) welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104259631A true CN104259631A (en) | 2015-01-07 |
Family
ID=52151276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410480906.8A Pending CN104259631A (en) | 2014-09-19 | 2014-09-19 | Hot wire TIG (tungsten inert gas) welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104259631A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532409A (en) * | 1981-04-06 | 1985-07-30 | Kabushiki Kaisha Kobe Seiko Sho | Method for gas shielded arc welding with direct current non-consumable electrode |
| JPH09141491A (en) * | 1995-11-20 | 1997-06-03 | Nippon Steel Weld Prod & Eng Co Ltd | Production of arc welding wire |
| CN101391338A (en) * | 2008-10-17 | 2009-03-25 | 哈尔滨建成集团有限公司 | Ferritic steel barrel butt-junction circular-seam hot-wire TIG multi-layer multipath welding method |
| CN102500885A (en) * | 2011-11-09 | 2012-06-20 | 天津大学 | Gas tungsten arc welding (GTAW) system and welding method thereof |
| CN202846040U (en) * | 2012-11-05 | 2013-04-03 | 黑龙江科技学院 | Special stainless steel welding wire for active agent argon tungsten-arc welding |
-
2014
- 2014-09-19 CN CN201410480906.8A patent/CN104259631A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532409A (en) * | 1981-04-06 | 1985-07-30 | Kabushiki Kaisha Kobe Seiko Sho | Method for gas shielded arc welding with direct current non-consumable electrode |
| JPH09141491A (en) * | 1995-11-20 | 1997-06-03 | Nippon Steel Weld Prod & Eng Co Ltd | Production of arc welding wire |
| CN101391338A (en) * | 2008-10-17 | 2009-03-25 | 哈尔滨建成集团有限公司 | Ferritic steel barrel butt-junction circular-seam hot-wire TIG multi-layer multipath welding method |
| CN102500885A (en) * | 2011-11-09 | 2012-06-20 | 天津大学 | Gas tungsten arc welding (GTAW) system and welding method thereof |
| CN202846040U (en) * | 2012-11-05 | 2013-04-03 | 黑龙江科技学院 | Special stainless steel welding wire for active agent argon tungsten-arc welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |