CN1593830A - Catelectrode atomization type preweld cleaning equipment for aluminum alloy welding wire - Google Patents
Catelectrode atomization type preweld cleaning equipment for aluminum alloy welding wire Download PDFInfo
- Publication number
- CN1593830A CN1593830A CN 200410043666 CN200410043666A CN1593830A CN 1593830 A CN1593830 A CN 1593830A CN 200410043666 CN200410043666 CN 200410043666 CN 200410043666 A CN200410043666 A CN 200410043666A CN 1593830 A CN1593830 A CN 1593830A
- Authority
- CN
- China
- Prior art keywords
- welding
- welding wire
- alloy welding
- tungsten electrode
- aluminium alloy
- 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 makes public a kind of negative electrode atomization cleaning device which is used to clean the aluminum alloy welding thread before welding. The device consists of current source, at least two tungsten electrodes, tube, shell body, and inert gas container. Through the sealed body is thread bore. And the two electrodes are inside the body, separate each other above the thread bore and connect respectively to positive outing end. Lumen of the body connects to the inert gas container by tube. The two tungsten electrodes strike fire respectively with aluminum alloy welding thread and produce mini electric arc to clean the oxidation film covering the welding thread. The invention uses the negative atomization phenomenon of aluminum alloy welding to clean the welding thread before melting it by mini arc. The invention is a cleaning method going with welding, can clean more completely than previous method. It also can heat the welding thread in advance so can improve the welding efficiency.
Description
Technical field:
The present invention relates to a kind of preweld cleaning equipment of aluminium alloy welding wire.
Background technology:
In the aluminium alloy welding, the oxide-film (Al of alloy surface
2O
3) having absorbed a large amount of greasy dirts and moisture, the introducing of these impurity will produce hydrogen blistering problem in the very big influence, particularly weld seam to the Weld Performance of aluminium alloy.Aluminium alloy to the solubility curve of hydrogen (be about 0.69ml/100g in liquid state, to solid-state bust to 0.036ml/100g) determined the aluminum alloy welding welding seam to have hydrogen blistering inevitably, and hydrogen source (as: H
2O) in a single day enter welding atmosphere, just be difficult to be removed, and finally become the hydrogen blistering of weld seam.On the other hand, when aluminium alloy welds, because its oxide-film (Al
2O
3) fusing point (being about 2050 ℃) much larger than the fusing point (being about 660 ℃) of aluminium alloy, therefore when welding aluminum alloy materials, a large amount of oxide-film (Al
2O
3) will produce defective such as slag inclusion, form the formation of crack of weld seam.Thus, aluminium alloy when welding, oxide-film remove cleaning with alloy surface, to improving the final mechanical performance of weld seam very big influence is arranged.At present, for the aluminium alloy welding wire preweld cleaning, mainly contain following two kinds of methods: 1, mechanical treatment, promptly mechanical scraping.It is the method by machinery, reaches the purpose that aluminium alloy is separated with its surface oxide layer.This method is simple to operate, be aluminium alloy welding preweld cleaning than method in common, but not ideal to the treatment effect of oxide layer, handle not thorough.2, chemical debridement methods, this method are to reach the purpose of removing oxide layer by chemical reaction.Comparatively method in common is expressed as follows: with concentration is that 15% NaOH solution soaks welding wire or pending aluminum alloy materials (2min); And then with concentration 15% HNO
3Solution soaks welding wire or pending aluminum alloy materials (8min); At last, washing and dry.Though this method cleaning performance is better than mechanical treatment, the operation more complicated is not suitable for limit processing side weld obviously and connects, and processing back welding wire or mother metal must be welded as early as possible, in order to avoid oxide-film (Al
2O
3) formation again.
Summary of the invention:
In order to overcome prior art or aluminium alloy welding wire to be handled thoroughly or is difficult to defective with the welding process coupling, provide a kind of oxide that can thoroughly remove aluminum alloy welding wire surface and also can with the aluminium alloy welding wire preweld cleaning equipment of the coupling of welding process.The present invention realizes by following proposal: a kind of negative electrode atomization type aluminium alloy welding wire preweld cleaning equipment, it comprises power supply 1, at least two tungsten electrodes, pipeline 10, housing 3 and inert gas containers 4, be through with wire hole 3-1 in the housing 3 of sealing, I tungsten electrode 2-1 and II tungsten electrode 2-2 are arranged in the inner chamber of housing 3, I tungsten electrode 2-1 and II tungsten electrode 2-2 are in stagger on axially distance and being connected with the anode output end of power supply 1 respectively of wire hole 3-1, and the inner chamber of housing 3 is connected with inert gas container 4 by pipeline 10.When the present invention worked, aluminium alloy welding wire 5 penetrated from the end of wire hole 3-1, was used for welding after the wire hole other end passes.Aluminium alloy welding wire 5 connects the cathode end of power supply 1, and such I tungsten electrode 2-1 and II tungsten electrode 2-2 produce little electric arc with aluminium alloy welding wire 5 sparkings respectively, the oxide-film of cleaning welding wire surface.The aluminium alloy welding wire that the invention provides a kind of new high-efficiency is with the weldering cleaning equipment, and its utilization aluminium alloy welds distinctive negative electrode atomizating phenomenon, and (work function of fine aluminium is greater than its oxide Al
2O
3Work function, thereby cause when aluminum alloy welding wire connection power cathode its oxide Al
2O
3Be easier to runaway electron, with preferential conducting), before welding wire enters welding pool,, reach the purpose of preweld cleaning by of the bombardment of little arc current to the welding wire oxide-film.Compare it with traditional welding wire method for cleaning and have simple in structurely, flexible for installation, can apply in most of aluminium alloy welding equipment; On the other hand, this equipment is and the welding process associated working, dynamically welding wire is cleared up, since short from clearing up the weld interval time, can avoid clearing up regenerating of rear oxidation film effectively, reduced the content of weld hydrogen pore largely; The present invention also carries out preheating by the differential of the arc to welding wire, reaches the purpose that improves deposition rate and improve welding efficiency.In this equipment, add protective gas, make welding wire oxidized again to prevent too high temperature.Can also realize the adjusting of the cleaning degree of depth and welding wire preheat temperature by changing the electric current output of power supply.Advantage of the present invention and the performance indications that reach: 1, the present invention uses the negative electrode atomizating phenomenon of aluminium alloy welding, and the utilization differential of the arc is cleared up welding wire before welding wire enters the molten bath, and this invention is a kind of with the weldering method for cleaning, and more traditional preweld cleaning is more thorough.2, can reach the purpose of regulating the welding wire cleaning degree of depth by changing the output current of two power supplys.3, because the present invention adopts electric arc to clear up welding wire,, so not only can reduce aluminium alloy weld seam hydrogen blistering and many weld defects, can also improve welding efficiency so itself has the effect of preheating again to welding wire.
Description of drawings:
Fig. 1 is a structural representation of the present invention, and Fig. 2 is the schematic diagram of the present invention and welding process coupling, and Fig. 3 is the structural representation of embodiment of the present invention three.
The specific embodiment:
The specific embodiment one: specify present embodiment below in conjunction with Fig. 1 and Fig. 2.It is made up of power supply 1, two tungsten electrodes, pipeline 10, housing 3 and inert gas containers 4, be through with wire hole 3-1 in the housing 3 of sealing, I tungsten electrode 2-1 and II tungsten electrode 2-2 are arranged in the inner chamber of housing 3 and divide the both sides that are listed in wire hole 3-1, I tungsten electrode 2-1 and II tungsten electrode 2-2 are in stagger on axially distance and being connected with the anode output end of power supply 1 respectively of wire hole 3-1, the inner chamber of housing 3 is connected with inert gas container 4 by pipeline 10, and pending welding wire is connected with the negative electrode of power supply.
The specific embodiment two: specify present embodiment below in conjunction with Fig. 1.The difference of present embodiment and embodiment one is, it also comprises three dottle pins 6, two positioning sleeves 7 and glands 8, dottle pin 6, positioning sleeve 7 are glanded 8 and are enclosed in the inner chamber of housing 3, two positioning sleeves 7 are separated three dottle pins 6, and I tungsten electrode 2-1 and II tungsten electrode 2-2 are fixed on the positioning sleeve 7 by screw 9.So be provided with, the mounting or dismounting tungsten electrode is very convenient, makes the work of adjusting and repairing tungsten electrode become easy.
The specific embodiment three: specify present embodiment below in conjunction with Fig. 3.The difference of present embodiment and embodiment one is that I tungsten electrode 2-1 and II tungsten electrode 2-2 can select annular electrode for use according to concrete needs.
The specific embodiment four: specify present embodiment below in conjunction with Fig. 1.The difference of present embodiment and embodiment one is, used power supply can be selected multiple form of power such as dc source, AC power or the pulse power, is negative pole but the cleaning effect of welding wire oxide-film is only occurred in welding wire, and electrode be under the situation of positive pole.
Claims (4)
1, a kind of negative electrode atomization type aluminium alloy welding wire preweld cleaning equipment, it is characterized in that it comprises constant-current supply (1), at least two tungsten electrodes, pipeline (10), housing (3) and inert gas (4), be through with wire hole (3-1) in the housing (3) of sealing, I tungsten electrode (2-1) and II tungsten electrode (2-2) are arranged in the inner chamber of housing (3), I tungsten electrode (2-1) and II tungsten electrode (2-2) are connected at stagger on the axially anode output end of distance and same respectively constant-current supply (1) of wire hole (3-1), and the inner chamber of housing (3) is connected with inert gas container (4) by pipeline (10).
2, negative electrode atomization type aluminium alloy welding wire preweld cleaning equipment according to claim 1, it is characterized in that it also comprises three dottle pins (6), two positioning sleeves (7) and gland (8), dottle pin (6), positioning sleeve (7) are glanded (8) and are enclosed in the inner chamber of housing (3), two positioning sleeves (7) are separated three dottle pins (6), and I tungsten electrode (2-1) and II tungsten electrode (2-2) are fixed on the positioning sleeve (7) by screw (9).
3, negative electrode atomization type aluminium alloy welding wire preweld cleaning equipment according to claim 1 is characterized in that I tungsten electrode (2-1) and II tungsten electrode (2-2) are annular electrode.
4, negative electrode atomization type aluminium alloy welding wire preweld cleaning equipment according to claim 1 is characterized in that selected power supply (1) is dc source, AC power or the pulse power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410043666 CN1285439C (en) | 2004-06-30 | 2004-06-30 | Catelectrode atomization type preweld cleaning equipment for aluminum alloy welding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410043666 CN1285439C (en) | 2004-06-30 | 2004-06-30 | Catelectrode atomization type preweld cleaning equipment for aluminum alloy welding wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1593830A true CN1593830A (en) | 2005-03-16 |
| CN1285439C CN1285439C (en) | 2006-11-22 |
Family
ID=34665373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410043666 Expired - Fee Related CN1285439C (en) | 2004-06-30 | 2004-06-30 | Catelectrode atomization type preweld cleaning equipment for aluminum alloy welding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1285439C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862886A (en) * | 2010-06-10 | 2010-10-20 | 哈尔滨工业大学 | Hot wire consumable electrode gas protection welding method and realization device thereof |
| CN104084700A (en) * | 2014-06-30 | 2014-10-08 | 北京工业大学 | Method for removing oxidation films through cathode atomization of low current pendular electric arcs |
| CN104985363A (en) * | 2015-06-30 | 2015-10-21 | 苏州华日金菱机械有限公司 | Activation method for cold solder |
| CN112643177A (en) * | 2021-01-18 | 2021-04-13 | 唐山松下产业机器有限公司 | Consumable electrode pulse arc welding method and welding apparatus |
| EP3838468A1 (en) * | 2019-12-20 | 2021-06-23 | Illinois Tool Works Inc. | Methods and systems for gas control during welding wire pretreatments |
| EP3838466A1 (en) * | 2019-12-20 | 2021-06-23 | Illinois Tool Works Inc. | Methods and systems for gas control during welding wire pretreatments |
-
2004
- 2004-06-30 CN CN 200410043666 patent/CN1285439C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862886A (en) * | 2010-06-10 | 2010-10-20 | 哈尔滨工业大学 | Hot wire consumable electrode gas protection welding method and realization device thereof |
| CN104084700A (en) * | 2014-06-30 | 2014-10-08 | 北京工业大学 | Method for removing oxidation films through cathode atomization of low current pendular electric arcs |
| CN104084700B (en) * | 2014-06-30 | 2016-05-25 | 北京工业大学 | Little current swing arc cathode atomizing and oxidizing film method for cleaning |
| CN104985363A (en) * | 2015-06-30 | 2015-10-21 | 苏州华日金菱机械有限公司 | Activation method for cold solder |
| EP3838468A1 (en) * | 2019-12-20 | 2021-06-23 | Illinois Tool Works Inc. | Methods and systems for gas control during welding wire pretreatments |
| EP3838466A1 (en) * | 2019-12-20 | 2021-06-23 | Illinois Tool Works Inc. | Methods and systems for gas control during welding wire pretreatments |
| US11772182B2 (en) | 2019-12-20 | 2023-10-03 | Illinois Tool Works Inc. | Systems and methods for gas control during welding wire pretreatments |
| CN112643177A (en) * | 2021-01-18 | 2021-04-13 | 唐山松下产业机器有限公司 | Consumable electrode pulse arc welding method and welding apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1285439C (en) | 2006-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101474719A (en) | In situ self-spread welding repair method of aluminum mother plate | |
| CN101648312B (en) | Method for welding aluminum materials | |
| CN101269436B (en) | Aluminum-titanium alloy dissimilar metal scraping and wiping agitation soldering method | |
| CN108817620B (en) | Welding method of stainless steel sheet | |
| CN102922098A (en) | Method for welding thick aluminum alloy plate | |
| CN102990234B (en) | The welding method of a kind of sputtering tantalum ring boss and ring body | |
| CN101664852A (en) | Titanium and steel composite board welding method | |
| CN103014775A (en) | Method and device for producing titanium by fused salt electrolysis process | |
| CN104259629A (en) | Method for welding aluminum alloy cavity | |
| CN1285439C (en) | Catelectrode atomization type preweld cleaning equipment for aluminum alloy welding wire | |
| CN107584195A (en) | Alternating electric arc fuse argon tungsten-arc welding system and method for Welded | |
| CN103834983B (en) | The environment-protecting energy-saving liquor phase plasma cleaning method of shape | |
| WO2016086811A1 (en) | Method for directly electrolyzing metal crushed aggregates | |
| JP2008200563A (en) | Method for treating glass waste containing lead | |
| CN107322138A (en) | A kind of double-side gas shielded welding system | |
| CN101664851A (en) | Titanium and steel AC helium arc brazing method | |
| CN103182592A (en) | Alternating current and direct current hybrid welding method and device | |
| CN107470793A (en) | A kind of plasma MIG coaxial hybrid weldings for considering arc energy proportioning connect method | |
| CN104109761A (en) | Titanium chip recovery technology | |
| CN108161176A (en) | A kind of cold metal transfer welding procedure | |
| CN110711924A (en) | Method suitable for reducing titanium alloy TIG welding circumferential weld pore defects | |
| CN109732187B (en) | Method for electrochemically assisting metal welding through molten salt | |
| CN114700643A (en) | High-deposition low-heat-input plasma-twin-wire bypass arc welding device and method | |
| CN209349666U (en) | A kind of device of pair of circular ring work piece outer round surface re melting process | |
| CN201352545Y (en) | Novel tungsten electrode |
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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |