CN207255440U - Multifibres is total to molten bath arc increasing material manufacturing TIG welding guns and welder - Google Patents
Multifibres is total to molten bath arc increasing material manufacturing TIG welding guns and welder Download PDFInfo
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- CN207255440U CN207255440U CN201720524999.9U CN201720524999U CN207255440U CN 207255440 U CN207255440 U CN 207255440U CN 201720524999 U CN201720524999 U CN 201720524999U CN 207255440 U CN207255440 U CN 207255440U
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Abstract
It the utility model is related to multifibres and be total to molten bath arc increasing material manufacturing TIG welding guns and welder, wherein, multifibres, which is total to molten bath arc increasing material manufacturing TIG welding guns, includes gun body, and gun body front end sets porcelain mouth, it is characterised in that：There is cavity inside the gun body, the front end for being plugged with hollow tungsten electrode so as to hollow tungsten electrode is run through in the cavity and is stretched out from the port of the porcelain mouth, protection air cavity is formed between gun body inner wall and the hollow tungsten electrode；More than one wire feed cavity is axially provided with the hollow tungsten electrode；The other end of the gun body away from the porcelain mouth is provided with the air admission hole of connective protection source of the gas, and protects source of the gas equally to connect the wire feed cavity.The utility model is more than one since wire feed cavity has so that participates in weld job more than a root wire, deposition amount is added on the basis of high deposition efficiency, processing efficiency is improved in increasing material manufacturing shaping.
Description
Technical field
The utility model belongs to electric arc increases material manufacturing technology field, and in particular multifibres is total to molten bath arc increasing material manufacturing TIG welderings
Rifle and welder.
Background technology
TIG is welded（Tungsten Inert Gas Welding）, also known as non-melt pole inert gas tungsten electrode protection weldering.By
In the protection of argon gas, can air-isolation to melting the oxidation of metal, so, TIG welderings are widely used in welding and are oxidized easily
Non-ferrous metal aluminium, magnesium etc. and its alloy, stainless steel, high temperature alloy, titanium or titanium alloy, also have the active metal of infusibility（As molybdenum,
Niobium, zirconium etc.）, and the common material such as general carbon steel, low-alloy steel, except the exigent occasion of welding quality, do not adopt generally
Welded with TIG.But traditional TIG welderings, since the current capacity of its electrode is limited, arc power is subject to a definite limitation, and adopts
With paraxonic wire feed, weld penetration is shallow, speed of welding is small.Based on the above problem, people grow up a kind of heated filament on this basis
TIG is welded, it is a kind of high-quality, efficient, energy saving welding procedure, its basic principle is exactly the butt welding before welding wire is sent into molten bath
Silk carries out heating and reaches certain preheating temperature, finally realizes the purpose of high-speed and high-efficiency welding.But in hot wire TIG welding,
Welding wire is preheated substantially by the way of external resistance heating, in welding wire above with electric current, utilize the electricity of welding wire itself
Heat production is hindered so as to fulfill the preheating to welding wire, and several big technological problems will be produced during resistance heating heated filament, are magnetic biasing respectively
Blow, the fluctuation of heated filament feeding position, welding wire enter before molten bath and aoxidize unmanageable, and it is existing easily to produce in increasing material manufacturing cracking
As.
In hot wire TIG welding, if the extension elongation of welding wire is e, the cross-sectional area of welding wire is S, the resistivity of solder wire material
For ρ, the heated current of welding wire is Iw, then the resistance heat power P R produced on welding wire is：PR=(I2ρe)/S .It can be seen that, when
When the diameter of welding wire is very big, the resistivity of solder wire material is very low, the power of resistance heating will not reach the preheating temperature of welding wire heating
Degree, so method is only applicable to big resistivity, the situation compared with thin welding wire heating, is difficult to the high conductivity materials such as copper, aluminium
In welding, the electric current efficiency of heating surface is low, and welding wire does not reach suitable temperature.Therefore, there is an urgent need to hot wire TIG welding be used for copper alloy,
Lifting during Welded in terms of hot compress efficiency, pre-heat effect, weldquality.
At present, received significant attention using the TIG electric arc increases material manufacturing technologies welded.Increasing material manufacturing is on the surface of workpiece
Or edge carries out the welding procedure for the function metals layers such as one layer of deposition is wear-resisting, anti-corrosion, heat-resisting.Increasing material manufacturing makes to improving part
With the service life, reasonable employment material, enhances product performance, and reducing cost has significant economic benefit.Increasing material manufacturing is as material table
A kind of economic and quick process that face is modified, more and more widely the manufacture reparation applied to each industrial department part
In, mainly there are laser melting coating, arc surfacing etc..The problem of being most commonly encountered in traditional TIG welderings electric arc increasing material manufacturing precisely due to
Deposition position residual stress it is excessive and caused by cracking, there is presently no the method for effectively solving the problems, such as this.
The content of the invention
The purpose of this utility model is to provide a kind of multifibres to be total to molten bath arc increasing material manufacturing TIG welding guns and welder,
The residence time is long, deposition efficiency is low when tradition TIG is welded in electric arc increasing material manufacturing to solve, and deposition position stress is excessive to crack etc. and to ask
Topic, is particularly suitable for the increasing material manufacturing of the active metals such as copper, aluminium and its alloy, is specifically realized by following technical scheme：
Multifibres is total to molten bath arc increasing material manufacturing TIG welding guns, including gun body, and gun body front end sets porcelain mouth, it is characterised in that：Institute
Stating inside gun body has cavity, through being plugged with hollow tungsten electrode so that the front end of hollow tungsten electrode is from the end of the porcelain mouth in the cavity
Mouth stretches out, and protection air cavity is formed between gun body inner wall and the hollow tungsten electrode；Axially it is provided with more than one in the hollow tungsten electrode
A wire feed cavity；The other end of the gun body away from the porcelain mouth is provided with the air admission hole of connective protection source of the gas, and protects source of the gas
Equally connect the wire feed cavity.
The multifibres is total to molten bath arc increasing material manufacturing TIG welding guns, its further design is, each wire feed cavity with
Gather setting in the opposite port of workpiece.
The multifibres is total to molten bath arc increasing material manufacturing TIG welding guns, and further design is that each wire feed cavity is equal for it
The even axis side for being distributed in the hollow tungsten electrode, and the wire feed cavity port opposite with workpiece is to the axis of hollow tungsten electrode
Deflection is so that the axis direction of port to the hollow tungsten electrode of wire feed cavity is gathered.
The multifibres is total to molten bath arc increasing material manufacturing TIG welding guns, and further design is that the wire feed cavity has four for it
Group.
A kind of multifibres is total to molten bath arc increasing material manufacturing TIG weld device, which includes more described in claim 1
The common molten bath arc increasing material manufacturing TIG welding guns of silk.
The multifibres is total to molten bath arc increasing material manufacturing TIG weld device, and further design is that the welder is also for it
Including with the corresponding more than one wire feeder of the wire feed cavity；Corresponding welding wire is respectively fed to by each wire feeder
In each wire feed cavity, the welding wire is pierced by wire feed cavity and gathers.
The advantages of the utility model is with good effect：
Improve the structure design of tungsten electrode, four uniformly distributed wire feed cavities are provided with tungsten electrode, which can be used for sending
Gas, wire feed and preheating wire welding；Preheated in hole, welding wire preheating is more uniform, and the weldquality of welding has and must improve, together
When also strengthen welding wire deposition efficiency.Due to wire feed cavity have it is more than one so that more than a root wire participate in weld job, in height
Deposition amount is added on the basis of deposition efficiency, processing efficiency is improved in increasing material manufacturing shaping.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model welding gun embodiment.
Embodiment
The utility model is further described below in conjunction with Figure of description and embodiment：
As shown in Figure 1, the multifibres, which is total to molten bath arc increasing material manufacturing TIG welding guns, includes gun body, gun body front end sets porcelain mouth 3,
There is cavity inside gun body, run through in the cavity and be plugged with hollow tungsten electrode 1 so that the front end of hollow tungsten electrode is stretched from the port of porcelain mouth
Go out, protection air cavity 2 is formed between gun body inner wall and hollow tungsten electrode；Four wire feed cavities are axially provided with hollow tungsten electrode, certainly
It may be set to be more than four or less than four and more than one；The other end of the gun body away from porcelain mouth is provided with connective protection
The air admission hole of source of the gas, and protect source of the gas equally to connect wire feed cavity 5.
Each wire feed cavity is uniformly distributed in the axis side of hollow tungsten electrode, and wire feed cavity it is opposite with workpiece port it is equal
Deflected to the axis of hollow tungsten electrode so that the axis direction of port to the hollow tungsten electrode of wire feed cavity is gathered.
A kind of multifibres is total to molten bath arc increasing material manufacturing TIG weld device, which includes foregoing multifibres congruent melting pond
Electric arc increasing material manufacturing TIG welding guns, remaining structure composition and existing TIG weld device are essentially identical, simply corresponding wire-feed motor
Structure needs to be arranged to multigroup, and specifically, which further includes and the corresponding more than one wire-feed motor of wire feed cavity
Structure；Corresponding welding wire is respectively fed in each wire feed cavity by each wire feeder, and welding wire 4 is pierced by wire feed cavity and gathers.
Wire feeder therein includes a pair of driving wheels 6 and wire reel 7, and a pair of driving wheels 6 is arranged at welding gun and wire reel 7
Between, welding wire 4 on wire reel 7 is sent into wire feed cavity 5 after passing through driving wheel from the rear end of hollow tungsten electrode 1, and from hollow tungsten electrode 1
Front end stretch out.A pair of driving wheels is symmetrical arranged, and is rotated backward, and the gap between its edge is equal with the diameter of welding wire 4, so that
Welding wire 4 is held between driving wheel and is conveyed into hollow tungsten electrode 1 with the rotation of driving wheel, continues wire feed to weld,
Realize the automation of wire feed process.
The increasing material manufacturing method of molten bath arc increasing material manufacturing TIG weld device is total to using multifibres, its step is as follows：1st, first adjust
Whole good welding gun make it that the porcelain mouth port of welding gun is opposite with workpiece soldered to be welded；2nd, persistently injected in the protection air cavity into gun body
Protective gas, and sprayed from porcelain mouth, protective atmosphere is formed between porcelain mouth and workpiece to be welded, then into each wire feed cavity
Protective gas is persistently injected, empties wire feed cavity inner air；3rd, will be respectively fed to send more than a root wire via wire feeder
Until welding wire is pierced by wire feed cavity and gathers in the surface of workpiece to be welded in silk cavity；4th, the source of welding current is connected, hollow
The starting the arc between tungsten electrode and the soldered of workpiece, forms molten bath, and wire feeder continues wire feed, starts to weld, in welding process, weldering
Silk is subject to hollow tungsten electrode heat radiation, arc heat to be preheated before molten bath is entered；5th, at the end of welding, blow-out, stopping successively being sent
Silk, disconnect protection gas, closes the source of welding current, completes welding operation.
The welding wire 4 of the utility model is conveyed with protective gas by the wire feed cavity 5 in hollow tungsten electrode 1.It is empty in welding
After 1 striking of heart tungsten electrode, temperature rise, the welding wire 4 in wire feed cavity 5 is in hollow 1 heat radiation of tungsten electrode and the effect of arc heat
Under can carry out pre-heating temperature elevation before molten bath is entered, welding wire is electrically heated compared to traditional, it is independent without extra addition
Heater supply, greatly improve pre-heat effect, reduce energy consumption, structure is also simpler, and production cost is low, it is often more important that
The problem of avoiding arc blow, reduces the energy of arc-melting welding wire, to 4 homogeneous heating of welding wire, can form spray transfer, subtract
Small heating dwell times, realize ultrahigh speed, high quality electric arc increasing material manufacturing, improve deposition efficiency, speed of welding, reduce hydrogen
The generation of the weld defects such as stomata, improves weldquality, is particularly suitable for the increasing material system of the low electrical resistant materials such as copper, aluminium and its alloy
Welding is made, weld preheating improves the distribution of welding temperatures at localized regions field, effectively reduces deposition position residual stress, can be effective
Avoid the cracking phenomena produced by Preheating during increasing material manufacturing.In addition, the welding wire 4 in wire feed cavity 5 is in and protects
Protect in atmosphere, avoid welding wire 4 from being aoxidized after preheating.
Claims (6)
1. multifibres is total to molten bath arc increasing material manufacturing TIG welding guns, including gun body, gun body front end sets porcelain mouth, it is characterised in that：It is described
There is cavity, through being plugged with hollow tungsten electrode so that the front end of hollow tungsten electrode is from the port of the porcelain mouth in the cavity inside gun body
Stretch out, protection air cavity is formed between gun body inner wall and the hollow tungsten electrode；Axially it is provided with the hollow tungsten electrode more than one
Wire feed cavity；The other end of the gun body away from the porcelain mouth is provided with the air admission hole of connective protection source of the gas, and protects source of the gas same
Sample connects the wire feed cavity.
2. multifibres according to claim 1 is total to molten bath arc increasing material manufacturing TIG welding guns, it is characterised in that each wire feed
Gather setting in the cavity port opposite with workpiece.
3. multifibres according to claim 2 is total to molten bath arc increasing material manufacturing TIG welding guns, it is characterised in that each wire feed
Cavity is uniformly distributed in the axis side of the hollow tungsten electrode, and the wire feed cavity port opposite with workpiece is to hollow tungsten electrode
Axis deflect so that the axis direction of port to the hollow tungsten electrode of wire feed cavity is gathered.
4. multifibres according to claim 1 is total to molten bath arc increasing material manufacturing TIG welding guns, it is characterised in that the wire feed chamber
Road has four groups.
5. a kind of multifibres is total to molten bath arc increasing material manufacturing TIG weld device, it is characterised in that the welder includes claim 1
The multifibres is total to molten bath arc increasing material manufacturing TIG welding guns.
6. multifibres according to claim 5 is total to molten bath arc increasing material manufacturing TIG weld device, it is characterised in that the welding
Device further includes and the corresponding more than one wire feeder of the wire feed cavity；Each wire feeder divides corresponding welding wire
It is not sent into each wire feed cavity, the welding wire is pierced by wire feed cavity and gathers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720524999.9U CN207255440U (en) | 2017-05-11 | 2017-05-11 | Multifibres is total to molten bath arc increasing material manufacturing TIG welding guns and welder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720524999.9U CN207255440U (en) | 2017-05-11 | 2017-05-11 | Multifibres is total to molten bath arc increasing material manufacturing TIG welding guns and welder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106994546A (en) * | 2017-05-11 | 2017-08-01 | 江苏阿斯美特精工科技有限公司 | The common molten bath arc increasing material manufacturing TIG welding guns of multifibres and welder and increasing material manufacturing method |
| CN112975064A (en) * | 2018-10-26 | 2021-06-18 | 林肯环球股份有限公司 | Dual wire welding or additive manufacturing contact tip and diffuser |
-
2017
- 2017-05-11 CN CN201720524999.9U patent/CN207255440U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106994546A (en) * | 2017-05-11 | 2017-08-01 | 江苏阿斯美特精工科技有限公司 | The common molten bath arc increasing material manufacturing TIG welding guns of multifibres and welder and increasing material manufacturing method |
| CN112975064A (en) * | 2018-10-26 | 2021-06-18 | 林肯环球股份有限公司 | Dual wire welding or additive manufacturing contact tip and diffuser |
| CN112975064B (en) * | 2018-10-26 | 2023-04-21 | 林肯环球股份有限公司 | Dual wire welded or additive manufactured contact tip and diffuser |
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