CN206732334U - A kind of gas welding welding gun - Google Patents
A kind of gas welding welding gun Download PDFInfo
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- CN206732334U CN206732334U CN201720245504.9U CN201720245504U CN206732334U CN 206732334 U CN206732334 U CN 206732334U CN 201720245504 U CN201720245504 U CN 201720245504U CN 206732334 U CN206732334 U CN 206732334U
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Abstract
The utility model embodiment discloses a kind of gas welding welding gun, needs contact starting for solving gas welding welding gun of the prior art, causes the problem of butt welding nozzle causes loss to have an impact the impurity of fineness of gold during high-frequency arc strike.The present embodiment includes gun barrel；The top of the gun barrel is provided with the first air inlet pipe and the second air inlet pipe；Weldering nozzle is provided with the bottom position of the gun barrel；The weldering nozzle is provided with air exhaustion；Weldering nozzle inner chamber body portion is divided into the first cavity and the second cavity by the air exhaustion；First cavity forms the welding ends of cylinder with second cavity portion at the tail end of the air exhaustion；The top of the air exhaustion is connected with power supply；The tail end of the air exhaustion is connected with striking pole.In the present embodiment, cavity portion is divided into the first cavity and the second cavity by the air exhaustion in weldering nozzle, and the welding ends of cylinder, such design are formed in the junction of two cavitys, so that the weldering nozzle controls its beam distance can to reach the effect of welding without contact starting.
Description
Technical field
It the utility model is related to gold processing and manufacturing field, more particularly to a kind of gas welding welding gun.
Background technology
Argon arc welding, it is a kind of welding technique for using argon gas as protective gas；Also known as argon gas protection weldering.It is exactly in electricity
Lead to upper argon gas protective gas around arc-welding, by air insulated outside welding zone, prevent the oxidation of welding zone.
Argon arc welding technology is on the basis of the principle of conventional arc weldering, using protection of the argon gas to metal wlding, is passed through
High current makes wlding be melted into liquid formation molten bath on by weldering base material, makes to be welded metal and wlding reaches one kind of metallurgical binding
Welding technique, due to constantly serving argon gas in being welded in high-temperature fusion, prevent wlding from being contacted with the oxygen in air, so as to anti-
Stop the oxidation of wlding, therefore can be with soldering stainless steel, iron class hardware metal.
Existing gas welding welding gun on the market, it is necessary to welding nozzle and being contacted with solution just can be dissolved or be welded to solution, but
When the shortcomings that this welding gun is exactly high-frequency arc strike, easy butt welding nozzle causes certain loss.
Therefore, a kind of low gas welding welding gun of proportion of goods damageds need to be looked for turn into the important topic that those skilled in the art is studied.
Utility model content
The utility model embodiment discloses a kind of gas welding welding gun, needs to connect for solving gas welding welding gun of the prior art
Touch striking, cause the problem of butt welding nozzle causes loss to have an impact the impurity of fineness of gold during high-frequency arc strike.
The utility model embodiment provides a kind of gas welding welding gun, including gun barrel；The top of the gun barrel is provided with first
Air inlet pipe and the second air inlet pipe；
Weldering nozzle is provided with the bottom position of the gun barrel；
The weldering nozzle is provided with air exhaustion；Weldering nozzle inner chamber body portion is divided into the first cavity and the second chamber by the air exhaustion
Body；
First cavity forms the welding ends of cylinder with second cavity portion at the tail end of the air exhaustion；
The top of the air exhaustion is connected with power supply；The tail end of the air exhaustion is connected with striking pole.
Alternatively, the weldering nozzle is that titanium alloy welds nozzle.
Alternatively, the weldering nozzle is that tungsten welds nozzle.
Alternatively, the weldering nozzle is that tungsten-molybdenum alloy welds nozzle.
Alternatively, the side of the weldering nozzle is provided with the first cooling system, and opposite side is provided with the second cooling system；
First cooling system is used to, when weldering nozzle temperature is too high, reduce the temperature for welding nozzle with second cooling system.
Alternatively, the side of first cooling system is provided with first through hole；The side of the second cooling system is set
It is equipped with the second through hole.
Alternatively, the first regulating valve and the second regulating valve are provided with the middle part of the gun barrel；
Second regulating valve is arranged on the side of first regulating valve.
Alternatively, in addition to locking nut；Weldering nozzle is attached by the locking nut and the gun barrel.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
The utility model embodiment, which provides a kind of gas welding welding gun, includes gun barrel；The air inlet pipe of top first of the gun barrel and
Second air inlet pipe；Weldering nozzle is provided with the bottom position of the gun barrel；The weldering nozzle is provided with air exhaustion；The air exhaustion is by the weldering
Nozzle inner chamber body portion is divided into the first cavity and the second cavity；First cavity is with second cavity portion in the air exhaustion
The welding ends of cylinder is formed at tail end；The top of the air exhaustion is connected with power supply；The tail end of the air exhaustion is connected with striking pole.
In the present embodiment, using the particular design for welding nozzle, cavity portion is divided into the first cavity and the second cavity by the air exhaustion welded in nozzle, and
And the welding ends of cylinder, such design are formed in the junction of two cavitys so that the weldering nozzle is without contact starting, control
The effect that its beam distance can reaches welding is made, enters the loss for once reducing weldering nozzle, the generation of the impurity of reduction, improves
The purity of gold.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the gas welding welding gun provided in the utility model embodiment；
Fig. 2 is a kind of weldering nozzle structural representation of the gas welding welding gun provided in the utility model embodiment；
Illustrate：First air inlet pipe 1；Second air inlet pipe 2；Gun barrel 3；First regulating valve 4；Second regulating valve 5；Locking screw
Mother 6；Weld nozzle 7；Air exhaustion 8；First cavity 9；Second cavity 10；Power supply 11；Striking pole 12；Solution 13；First cooling system 14；The
Two cooling systems 15.
Embodiment
The utility model embodiment discloses a kind of gas welding welding gun, needs to connect for solving gas welding welding gun of the prior art
Touch striking, cause the problem of butt welding nozzle causes loss to have an impact the impurity of fineness of gold during high-frequency arc strike.
With reference to the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu and detailed description, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all real
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made
The all other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 and Fig. 2 are referred to, a kind of one embodiment of the gas welding welding gun provided in the utility model embodiment includes：
Gun barrel 3；The top of the gun barrel 3 is provided with the first air inlet pipe 1 and the second air inlet pipe 2；
Weldering nozzle 7 is provided with the bottom position of the gun barrel 3；Weldering nozzle 7 is internally provided with air exhaustion 8；The air exhaustion 8 will weld nozzle 7
Inner chamber body portion is divided into the first cavity 9 and the second cavity 10；
The part of first cavity, 9 and second cavity 10 forms the welding ends of cylinder at the tail end of the air exhaustion 8；
The top of the air exhaustion 8 is connected with power supply 11；Tail end is connected with striking pole 12.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
In the present embodiment, using the particular design for welding nozzle 7, cavity portion is divided into the first cavity 9 by the air exhaustion 8 welded in nozzle 7
With the second cavity 10, and the welding ends of cylinder, such design so that the weldering nozzle 7 are formed in the junction of two cavitys
Without contact starting, control its beam distance can to reach the effect of welding, enter the loss for once reducing weldering nozzle 7.
Weldering nozzle 7 in the utility model embodiment welds nozzle 7 for titanium alloy, using titanium alloy material as weldering nozzle 7, avoids damaging
Material material watchman's clapper after bad goes out, then the high-purity argon that is applied (99.995%) gas is melting gold as protection to reach
During, exclude and avoid to have influence on the foeign element of fineness of gold, so as to reach 99.999 high-purity gold meltings.
It should be noted that titanium is a kind of novel metal, the performance of titanium has with impurity contents such as carbon containing, nitrogen, hydrogen, oxygen
Close, most pure titanium iodide impurity content is no more than 0.1%, but its low intensity, plasticity are high.The performance of 99.5% industrially pure titanium is：
Density p=4.5g/ cubic centimetres, fusing point are 1725 DEG C, thermal conductivity factor λ=15.24W/ (m.K), tensile strength sigma b=539MPa,
Elongation δ=25%, contraction percentage of area ψ=25%, elastic modulus E=1.078 × 105MPa, hardness HB195.
Intensity is high
The density of titanium alloy is typically the 60% of 4.51g/ cubic centimetres or so, only steel, and the density of pure titanium is just close to general
The density of logical steel, some high strength titanium alloys have exceeded the intensity of many structural alloy steels.Therefore the specific strength of titanium alloy is (strong
Degree/density) other structural metallic materials are much larger than, the parts that unit strength is high, rigidity is good, light can be made.The hair of aircraft
Motivation component, skeleton, covering, fastener and undercarriage etc. all use titanium alloy.
Calorific intensity is high
Temperature in use remains to keep at moderate temperatures required intensity than aluminium alloy Gao Ji Baidu, can 450~
This two classes titanium alloy of long-term work still has very high specific strength in the range of 150 DEG C~500 DEG C at a temperature of 500 DEG C, and aluminium closes
Gold specific strength at 150 DEG C is decreased obviously.The operating temperature of titanium alloy is up to 500 DEG C, and aluminium alloy is then below 200 DEG C.
Corrosion stability is good
Titanium alloy works in the air and Seawater of humidity, and its corrosion stability is much better than stainless steel；To spot corrosion, acid etching,
The resistance of stress corrosion is especially strong；There is excellent anticorrosive energy to alkali, chloride, organic article of chlorine, nitric acid, sulfuric acid etc.
Power.But titanium is poor to the corrosion stability with reproducibility oxygen and chromic salts medium.
Low temperature performance well
Titanium alloy remains to keep its mechanical property under low temperature and ultralow temperature.Low temperature performance well, the extremely low titanium of interstitial element
Alloy, such as TA7, certain plasticity can also be kept at -253 DEG C.Therefore, titanium alloy is also a kind of important low temperature structure material
Material.
Chemism is big
The chemism of titanium is big, the strong chemical reaction with the generation such as O, N, H, CO, CO2, vapor, ammonia in air.
When phosphorus content is more than 0.2%, hard TiC can be formed in titanium alloy；When temperature is higher, TiN hard tables can be also formed with N effects
Layer；When more than 600 DEG C, titanium absorbs oxygen and forms the very high hardened layer of hardness；Hydrogen content rises, and can also form brittle layer.Absorb
Up to 0.1~0.15mm, hardenability is 20%~30% for gas and caused hard crisp skin depth.The chemical affinity of titanium
Greatly, easily adhesion is produced with friction surface.
Understand in summary, the material using titanium alloy as weldering nozzle 7, in gas welding, further reduce impurity and be dissolved into
In gold.
Weldering nozzle 7 in the utility model embodiment, can also use tungsten material, and tungsten weldering nozzle 7 similarly can be with
Impurity is reduced to be dissolved into gold.
It should be noted that tungsten is most resistant to elevated temperatures metal.Wolfram steel also inherits this good characteristic of tungsten.With common carbon
The lathe tool that plain steel is done, it is heated to more than 250 DEG C and just softens, naturally also just cannot cutting metal.However, the car that wolfram steel is done
Knife, temperature are up to 1000 DEG C, still it is hard as before.1900, people's ability first time exhibition wolfram steel system in World's Fair
The lathe tool made.However, because tungsten steel turning tool tool has an enormous advantage, just promptly industrially it is promoted.Short
Five during the decade, due to the use of tungsten steel turning tool, metal cutting speed is added 200 times, increases to 2,000 from per minute ten meters
It is more than rice.Gun barrel, gun barrel are also commonly used wolfram steel and done, because in continuous transmitting, can rub boiling hot by shell, bullet, but heat-resisting
Wolfram steel still keep good elasticity and mechanical strength.
Tungsten is very hard, and tungsten guiding principle is also very hard, sharp.But, if hard alloy is made with tungsten carbide and cobalt powder, wolfram steel is compared
It is also hard, so that can be with diamond than beautiful.This hard alloy is not to produce what is come in converter, but uses metal powder
What end was made.This manufacture method, it is called " powder metallurgy ".During fabrication, people first mix carbon dust with tungsten powder, are heated to
1500 DEG C or so, tungsten carbide is made.Then, then tungsten carbide powder with the cobalt powder of black mix, be molded into definite shape, first heat
To 1000 DEG C of progress pre-burnings.Alloy after pre-burning, some machinings (because almost can not be again plus native after being hardened) are carried out, then added
At this moment heat, is originally the black powder as " a heap of a loose sand ", but sinters unusually strong hard alloy into 1500 DEG C or so.China
This easy powder metallurgic method is just being vigorously promoted the use, is manufacturing hard alloy.The knife made of this Talide
Tool, when processing same machine components, cutting speed is also faster 15 times than tungsten carbide tipped tool.With this Talide system
Into mould, can rush more than 300 ten thousand times, and common Alloy-steel mold can only rush more than 50,000 times.It is more valuable, due to it
It is not easy to be worn, so the product rushed out, exactly accurate.Hard alloy has been widely used for each industrial department in China, such as makes
Make part in wrist-watch, chemical plant high pressure nozzle and manufacture drill bit of the plunger tip of seamless steel pipe, drilling machine etc..
Further, the weldering nozzle 7 in the present embodiment can also be that tungsten-molybdenum alloy welds nozzle 7, and wherein tungsten accounts for 80%, and molybdenum accounts for
19.5%；Wherein, the tungsten-molybdenum alloy of tungstenic 30% (quality) has the corrosiveness of excellent tolerance of liquid zinc, to manufacture zinc metallurgy
Agitator in industry, pipeline and container inside lining and miscellaneous part.Tungsten-molybdenum alloy because elevated temperature strength is good, performance it is close with tungsten and
Proportion is smaller than tungsten, so can be used as the high-temperature component under corresponding hot conditions in rocket, guided missile, the filament of electron tube, part
And other high-temperature materials.
In summary, tungsten-molybdenum alloy is a kind of very resistant to elevated temperatures material, is also very suitable for being applied among weldering nozzle 7.
Weldering nozzle 7 in the utility model embodiment, the side of the weldering nozzle 7 are provided with the first cooling system 14, and opposite side is set
It is equipped with the second cooling system 15；
Wherein, the first cooling system 14 is identical with the structure of the second cooling system 15, and the inner chamber of the first cooling system 14 is
Hollow structure, the side of the first cooling system 14 are provided with first through hole, and the hollow structure of the through hole and inner chamber is come round.
Gas welding welding gun in the utility model embodiment, also include the first regulating valve 4 and the second regulating valve 5；This first
Regulating valve 4 controls the air inflow of the first air inlet pipe 1；Second regulating valve 5 is used for the air inflow for adjusting the second air inlet pipe 2；
It should be noted that the first regulating valve 4 and the second regulating valve 5 are arranged on the centre position of gun barrel 3, the first regulating valve
4 are arranged on the side of the second regulating valve 5, the first regulating valve 4 and the second regulating valve 5 arranges into V-shaped.
Weldering nozzle 7 in the utility model embodiment is attached by locking nut 6 and the gun barrel 3；Pass through locking screw
It mother 6, can further strengthen welding the firmness of nozzle 7, be less prone to wave in welding and cause product to fail.
Above-mentioned is that a kind of concrete structure of the gas welding welding gun provided the utility model embodiment is described in detail,
This welding gun will be further described with an application process, a kind of gas welding welding gun that the utility model embodiment provides
One application examples includes：
One end of air exhaustion 8 of this welding gun is connected with power supply 11, and the other end is connected with striking pole 12, turns on the power 11, from entering
Inert gas is passed through on tracheae, gas reaches the first cavity 9 and the second chamber in weldering nozzle 7 by two air inlet pipe in gun barrel 3
Body 10, by the welding gun close to solution 13, welding can be proceeded by.
A kind of purpose of gas welding welding gun provided by the utility model is, in the present embodiment, welds the air exhaustion 8 in nozzle 7 by chamber
Body portion is divided into the first cavity 9 and the second cavity 10, and the welding ends of cylinder is formed in the junction of two cavitys, so
Design so that the weldering nozzle 7 controls its beam distance can to reach the effect of welding without contact starting, further drop
The loss of low weldering nozzle 7, the generation of the impurity of reduction, improve the purity of gold；This weldering nozzle 7 uses titanium alloy or tungsten simultaneously
Or the material of tungsten-molybdenum alloy, avoid the material material watchman's clapper after damage from going out, then the high-purity argon that is applied (99.995%) gas conduct
Protection, during gold is melted, excludes and avoids the foeign element for having influence on fineness of gold, so as to reach to reach
99.999 high-purity gold melting.
A kind of gas welding welding gun provided by the utility model is described in detail above, for the general skill of this area
Art personnel, according to the thought of the utility model embodiment, there will be changes, comprehensive in specific embodiments and applications
Upper described, this specification content should not be construed as to limitation of the present utility model.
Claims (8)
1. a kind of gas welding welding gun, it is characterised in that including gun barrel；The top of the gun barrel is provided with the first air inlet pipe and second and entered
Tracheae；
Weldering nozzle is provided with the bottom position of the gun barrel；
The weldering nozzle is provided with air exhaustion；Weldering nozzle inner chamber body portion is divided into the first cavity and the second cavity by the air exhaustion；
First cavity forms the welding ends of cylinder with second cavity portion at the tail end of the air exhaustion；
The top of the air exhaustion is connected with power supply；The tail end of the air exhaustion is connected with striking pole.
2. gas welding welding gun according to claim 1, it is characterised in that the weldering nozzle is that titanium alloy welds nozzle.
3. gas welding welding gun according to claim 1, it is characterised in that the weldering nozzle is that tungsten welds nozzle.
4. gas welding welding gun according to claim 1, it is characterised in that the weldering nozzle is that tungsten-molybdenum alloy welds nozzle.
5. gas welding welding gun according to claim 1, it is characterised in that the side of the weldering nozzle is provided with the first cooling system
System, opposite side are provided with the second cooling system；
First cooling system is used to, when weldering nozzle temperature is too high, reduce the temperature for welding nozzle with second cooling system.
6. gas welding welding gun according to claim 5, it is characterised in that the side of first cooling system is provided with first
Through hole；The side of the second cooling system is provided with the second through hole.
7. gas welding welding gun according to claim 1, it is characterised in that be provided with the middle part of the gun barrel the first regulating valve and
Second regulating valve；
Second regulating valve is arranged on the side of first regulating valve.
8. gas welding welding gun according to claim 1, it is characterised in that also including locking nut；The weldering nozzle passes through described
Locking nut is attached with the gun barrel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720245504.9U CN206732334U (en) | 2017-03-14 | 2017-03-14 | A kind of gas welding welding gun |
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| CN201720245504.9U CN206732334U (en) | 2017-03-14 | 2017-03-14 | A kind of gas welding welding gun |
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| CN206732334U true CN206732334U (en) | 2017-12-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735763A (en) * | 2017-03-14 | 2017-05-31 | 东莞市金龙珠宝首饰有限公司 | A kind of gas welding welding gun |
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- 2017-03-14 CN CN201720245504.9U patent/CN206732334U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735763A (en) * | 2017-03-14 | 2017-05-31 | 东莞市金龙珠宝首饰有限公司 | A kind of gas welding welding gun |
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