CN102909465A - Titanium tube welding gas protection cover of fixed welding gun - Google Patents
Titanium tube welding gas protection cover of fixed welding gun Download PDFInfo
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- CN102909465A CN102909465A CN2012104106186A CN201210410618A CN102909465A CN 102909465 A CN102909465 A CN 102909465A CN 2012104106186 A CN2012104106186 A CN 2012104106186A CN 201210410618 A CN201210410618 A CN 201210410618A CN 102909465 A CN102909465 A CN 102909465A
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Abstract
The invention discloses a titanium tube welding gas protection cover of a fixed welding gun. The titanium tube welding gas protection cover comprises an arc-shaped aluminum housing, an argon lead-in tube, an internal gas sifter, a welding gun fixing device and a side surface rubber groove. During the welding process, the protection cover covers a part needed to be welded, and the welding gun is bound to the welding gun fixing device by using a ferrule, then gas is led into the protection cover through the argon lead-in tube, and then argon flow is uniformly distributed to the surface of a welding part through the gas sifter, and finally the side surface rubber groove is filled with rubber so as to enhance argon shield. As the welding gun is fixed to the gas protection cover through the ferrule, a welder fills a welding wire into a welding operation hole by one hand and rotates the gas protection cover by another hand so as to finish the welding operation. The titanium tube welding gas protection cover of the fixed welding gun is simple in structure and convenient to operate, and has a remarkable gas protection effect.
Description
Technical field
The invention belongs to welding technology field, more particularly, relate to for to manual Tig Welding titanium pipe the time protective device that the titanium pipe is carried out gas shield.
Background technology
Titanium or titanium alloy has good corrosion resistance, high specific strength reaches preferably heat resistance and processability, therefore is widely used for the every field such as Aeronautics and Astronautics, chemical industry and metallurgy.Welding is indispensable technique in the titanium alloy tube goods production process.In welding titanium or titanium alloy process, titanium can absorb hydrogen, oxygen, the nitrogen in the atmosphere, has a strong impact on welding quality.So when adopting manual TIG weldering welding titanium alloy tubing, must use the gas shield cover that welding region is carried out sufficient argon shield.Traditional gas shield device needs two welders to operate, and a welder is responsible for using welding gun and feeding welding wire, and another welder is responsible for rotating the gas shield cover welding region is protected.The gas shield device of this welding has proposed high requirement to cooperatively interacting of two welders, will affect welding quality in case gas shield cover follow-up speed and speed of welding are inadaptable.In addition, welding process needs two welders to finish, and production efficiency is lower.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art; a kind of titanium pipe welding gas protective cover of fixedly welding gun is provided; by the fixing method of welding gun, solve welding operation and must operate simultaneously the problem higher with operation easier of finishing by two people, improve welding production efficiency.
Technical purpose of the present invention is achieved by following technical proposals:
A kind of titanium pipe welding gas protective cover of fixedly welding gun; formed by circular arc shell, gas introduction tube, welding operation hole, welding gun fixture, inner air sifter layer and lateral grooves; gas introduction tube wherein; the welding operation hole; the welding gun fixture is fixed on the upper surface of circular arc shell; circular arc shell and inner air sifter layer are integral by being welded to connect, and the both sides of circular arc shell are provided with lateral grooves.Welding gun can be bound by metal cranse and welding gun fixture.Gas introduction tube imports inert gas (such as argon gas) in the protective cover, by air sifter argon gas stream is evenly distributed to the weldment surface.
It is that material is prepared that above-mentioned each part can adopt aluminium.
Described welding operation hole is arranged on the left end of circular arc shell, and adjacent with the welding gun fixture, so that welding gun can be fixed on the welding gun fixture after putting into the welding operation hole.The surface of described inner air sifter layer is pore, and inside is hollow design, and is connected with gas introduction tube.The lateral grooves of described circular arc shell is used for inserting sheet rubber, and is fixed with glue, rubber and titanium pipe close contact during welding, and isolated extraneous air is used for keeping inner purer inert atmosphere, for welding process provides better protection.
Because welding gun has been fixed on the gas shield cover by the metal cranse, hand of welder is inserted welding wire from the welding operation hole, and the another hand rotates the gas shield cover can finish welding operation.The present invention is simple in structure, and is easy to operate, the gas shield successful.Through evidence, the present invention is respond well to the protection of welding titanium pipe process, and fixedly the method for welding gun has improved production efficiency greatly so that the weld task that needs before two welders just can finish becomes by a welder finishes in addition.
Description of drawings
Fig. 1 structural representation of the present invention, wherein 1 is that circular arc shell, 2 is that gas introduction tube, 3 is that welding gun fixture, 4 is that welding operation hole, 5 is that inner air sifter layer, 6 is lateral grooves.
The design sketch (one) that Fig. 2 utilizes the present invention to weld.
The design sketch (two) that Fig. 3 utilizes the present invention to weld.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with specific embodiment.
As shown in Figure 1; a kind of titanium pipe welding gas protective cover of fixedly welding gun; formed by circular arc shell 1, gas introduction tube 2, welding operation hole 4, welding gun fixture 3, inner air sifter layer 5 and lateral grooves 6; gas introduction tube wherein; the welding operation hole; the welding gun fixture is fixed on the upper surface of circular arc shell, and circular arc shell and inner air sifter layer are integral by being welded to connect, and the both sides of circular arc shell are provided with lateral grooves.When welding, this device is covered the position that needs welding; and welding gun is bundled on the welding gun fixture with the metal cranse; then by gas introduction tube inert gas is imported in the protective cover; by air sifter argon gas stream is evenly distributed to the weldment surface; the lateral grooves of circular arc shell is used for inserting sheet rubber, and is fixed rubber and titanium pipe close contact during welding with glue; isolated extraneous air is used for keeping inner purer inert atmosphere, for welding process provides better protection.
The size of this gas shield cover can be welded as required the diameter of titanium pipe and made corresponding adjustment.
1. the titanium pipe (internal diameter 50.8mm, thickness 4mm) of required welding is opened double V-groove (bevel angle is 60 °-65 °).Use the stainless steel wire brush remove groove and apart from the TA2 oxide layer in the 20mm zone around the groove (, then use gauze to remove residual chip.Also must clear up before the wire welding, method is as follows: use white gauze, dip acetone or ethanol solution, repeatedly clean welding wire.
2. in order to guarantee good weldquality, two titanium pipes of butt welding should adopt the method for tack welding to make them on the same axis, the position of needs welding stick tinfoil (does not at first paste the position of welding).
3. protective gas is passed into respectively gas-shielded pipe and the welding machine of titanium pipe inside, gas shield cover, and welding gun is entered 4 welding gun fixtures with the ferrule snare, and binding.Before the welding gas shield device is covered the welding position, then begin to pass into argon gas.
4. when treating that argon gas is full of whole gas shield cover inside, the beginning welding operation.Because welding gun has been fixed on the gas shield cover by the metal cranse, hand of welder is inserted welding wire from the welding operation hole, and the another hand rotates the gas shield cover can finish welding operation.After finishing one section welding, should not remove at once the gas shield cover, but should carry out gas shield to the welding position with the gas shield cover, treat that temperature is reduced to can descend together welding below 200 ℃.
5. grind off the connection at tack welding place with abrasive machine, tear one section tinfoil and carry out the welding of the next position, method is with last welding.
6. after the ground floor welding is finished, the welding position is carried out the interlayer check.If find that color is defective, should use the stainless steel brush to remove oxidation tint, then clean with acetone or absolute ethyl alcohol.
7. after being cooled to below 150 ℃, interlayer temperature can carry out second layer welding.Welding operation is identical with the ground floor welding
Use this fixedly the gas shield cover of welding gun weld, and according to table 1, the described welding parameter of table 2 is welded two groups of titanium pipes respectively.The flow of argon gas: welding gun 10L/min, drag cover 10L/min, 5L/min in the pipe.
The welding parameter of first group of titanium pipe of table 1
The welding parameter of first group of titanium pipe of table 2
Postwelding carries out appearance test to two groups of titanium pipes.Because the titanium material is behind arcing, the surface forms the thin oxide-film of one deck, and formed oxide-film color is different under the different temperatures.It is silvery white that General Requirements postwelding surface is preferably, and secondly is golden yellow.Can find out that from accompanying drawing 2 and 3 two groups of titanium pipe weld heat-affected zones are silvery white, illustrate use this fixedly the gas shield of welding gun be covered with effect and avoided and the contacting of hydrogen, oxygen, nitrogen, argon shield is respond well.
In sum, adopt this fixedly the gas shield cover of welding gun be with respect to the advantage of other welding protection covers: the welding gas protection is effective; Apparatus structure is simply easy to use, and a welder can finish whole welding process, has greatly improved welding efficiency.
More than the present invention has been done exemplary description; should be noted that; in the situation that does not break away from core of the present invention, the replacement that is equal to that any simple distortion, modification or other those skilled in the art can not spend creative work all falls into protection scope of the present invention.
Claims (5)
1. fixing titanium pipe welding gas protective cover of welding gun; it is characterized in that; formed by circular arc shell, gas introduction tube, welding operation hole, welding gun fixture, inner air sifter layer and lateral grooves; gas introduction tube wherein; the welding operation hole; the welding gun fixture is fixed on the upper surface of circular arc shell, and circular arc shell and inner air sifter layer are integral by being welded to connect, and the both sides of circular arc shell are provided with lateral grooves.
2. the titanium pipe welding gas protective cover of a kind of fixedly welding gun according to claim 1; it is characterized in that; described welding operation hole is arranged on the left end of circular arc shell, and adjacent with the welding gun fixture, so that welding gun can be fixed on the welding gun fixture after putting into the welding operation hole.
3. the titanium pipe welding gas protective cover of a kind of fixedly welding gun according to claim 1; it is characterized in that; the surface of described inner air sifter layer is pore; inside is hollow design; and be connected with gas introduction tube; gas introduction tube imports inert gas in the protective cover, by air sifter it is evenly distributed to the weldment surface.
4. the titanium pipe welding gas protective cover of a kind of fixedly welding gun according to claim 1; it is characterized in that; the lateral grooves of described circular arc shell is used for inserting sheet rubber; and fixed with glue; rubber and titanium pipe close contact during welding; isolated extraneous air is used for keeping inner purer inert atmosphere, for welding process provides better protection.
5. the titanium pipe welding gas protective cover of the described fixedly welding gun of one of a utilization such as the claim 1-4 method of carrying out manual welding; it is characterized in that; when welding, hand of welder is inserted welding wire from the welding operation hole, and the another hand rotates the gas shield cover can finish welding operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104106186A CN102909465A (en) | 2012-10-24 | 2012-10-24 | Titanium tube welding gas protection cover of fixed welding gun |
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| CN2012104106186A CN102909465A (en) | 2012-10-24 | 2012-10-24 | Titanium tube welding gas protection cover of fixed welding gun |
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| CN102909465A true CN102909465A (en) | 2013-02-06 |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302386A (en) * | 2013-05-20 | 2013-09-18 | 江苏久保联实业有限公司 | Argon shield device for local welding |
| CN103394797A (en) * | 2013-07-29 | 2013-11-20 | 张家港化工机械股份有限公司 | Protection tool for outer wall of heat exchange tube during heat exchange tube and tube plate deep hole welding |
| CN103846533A (en) * | 2014-03-31 | 2014-06-11 | 成都振中电气有限公司 | Argon arc welding shielding device |
| CN103862151A (en) * | 2014-03-31 | 2014-06-18 | 成都振中电气有限公司 | Welding baffle plate |
| CN104084677A (en) * | 2014-05-12 | 2014-10-08 | 昆山华焊科技有限公司 | Gas protecting dragging cover with wire feeding mechanism |
| CN105689872A (en) * | 2015-12-16 | 2016-06-22 | 中国人民解放军第五七九工厂 | Repair method for abraded outer surface of thin-walled annular piece and auxiliary device of repair method |
| CN103862151B (en) * | 2014-03-31 | 2016-11-30 | 青岛玉兰祥商务服务有限公司 | A kind of welding shutter |
| CN106825927A (en) * | 2017-03-07 | 2017-06-13 | 西安交通大学 | A kind of laser soldering device for big L/D ratio fuel rod clad boxing |
| CN108672934A (en) * | 2018-04-25 | 2018-10-19 | 西安飞机工业（集团）有限责任公司 | A kind of gas shield device of titanium alloy conduit laser welding and guard method |
| CN109500476A (en) * | 2018-10-31 | 2019-03-22 | 沪东中华造船(集团)有限公司 | A kind of titanium or titanium alloy pipe argon arc welding welding protective cover and its application method |
| CN110842386A (en) * | 2019-11-18 | 2020-02-28 | 江麓机电集团有限公司 | Rib cavity protection method for welding U-shaped rib of titanium alloy frame vehicle body |
| CN111014954A (en) * | 2019-12-23 | 2020-04-17 | 上海交通大学 | Laser filler wire welding wire feeding and all-dimensional gas protection composite mechanism |
| CN111558769A (en) * | 2020-04-27 | 2020-08-21 | 南京工程学院 | Automatic welding protection device for straight seam of titanium welded pipe and using method thereof |
| CN112719536A (en) * | 2020-12-29 | 2021-04-30 | 天津航天长征火箭制造有限公司 | Argon tungsten-arc welding method for annular seam of bottom flange of aluminum-lithium alloy ellipsoid box |
| CN112935483A (en) * | 2021-01-28 | 2021-06-11 | 广东省科学院中乌焊接研究所 | Welding gun for narrow gap welding |
| CN114310133A (en) * | 2022-02-23 | 2022-04-12 | 中船黄埔文冲船舶有限公司 | Straight titanium pipe welding auxiliary device |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302386A (en) * | 2013-05-20 | 2013-09-18 | 江苏久保联实业有限公司 | Argon shield device for local welding |
| CN103394797A (en) * | 2013-07-29 | 2013-11-20 | 张家港化工机械股份有限公司 | Protection tool for outer wall of heat exchange tube during heat exchange tube and tube plate deep hole welding |
| CN103394797B (en) * | 2013-07-29 | 2016-08-10 | 苏州天沃科技股份有限公司 | The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding |
| CN103862151B (en) * | 2014-03-31 | 2016-11-30 | 青岛玉兰祥商务服务有限公司 | A kind of welding shutter |
| CN103846533A (en) * | 2014-03-31 | 2014-06-11 | 成都振中电气有限公司 | Argon arc welding shielding device |
| CN103862151A (en) * | 2014-03-31 | 2014-06-18 | 成都振中电气有限公司 | Welding baffle plate |
| CN103846533B (en) * | 2014-03-31 | 2016-01-20 | 成都振中电气有限公司 | A kind of argon arc welding radical occlusion device |
| CN104084677A (en) * | 2014-05-12 | 2014-10-08 | 昆山华焊科技有限公司 | Gas protecting dragging cover with wire feeding mechanism |
| CN105689872B (en) * | 2015-12-16 | 2018-04-20 | 中国人民解放军第五七一九工厂 | Thin-wall annular part surface wear restorative procedure and its auxiliary device |
| CN105689872A (en) * | 2015-12-16 | 2016-06-22 | 中国人民解放军第五七九工厂 | Repair method for abraded outer surface of thin-walled annular piece and auxiliary device of repair method |
| CN106825927A (en) * | 2017-03-07 | 2017-06-13 | 西安交通大学 | A kind of laser soldering device for big L/D ratio fuel rod clad boxing |
| CN108672934A (en) * | 2018-04-25 | 2018-10-19 | 西安飞机工业（集团）有限责任公司 | A kind of gas shield device of titanium alloy conduit laser welding and guard method |
| CN109500476A (en) * | 2018-10-31 | 2019-03-22 | 沪东中华造船(集团)有限公司 | A kind of titanium or titanium alloy pipe argon arc welding welding protective cover and its application method |
| CN110842386A (en) * | 2019-11-18 | 2020-02-28 | 江麓机电集团有限公司 | Rib cavity protection method for welding U-shaped rib of titanium alloy frame vehicle body |
| CN111014954A (en) * | 2019-12-23 | 2020-04-17 | 上海交通大学 | Laser filler wire welding wire feeding and all-dimensional gas protection composite mechanism |
| CN111558769A (en) * | 2020-04-27 | 2020-08-21 | 南京工程学院 | Automatic welding protection device for straight seam of titanium welded pipe and using method thereof |
| CN112719536A (en) * | 2020-12-29 | 2021-04-30 | 天津航天长征火箭制造有限公司 | Argon tungsten-arc welding method for annular seam of bottom flange of aluminum-lithium alloy ellipsoid box |
| CN112935483A (en) * | 2021-01-28 | 2021-06-11 | 广东省科学院中乌焊接研究所 | Welding gun for narrow gap welding |
| CN112935483B (en) * | 2021-01-28 | 2022-07-26 | 广东省科学院中乌焊接研究所 | Welding gun for narrow gap welding |
| CN114310133A (en) * | 2022-02-23 | 2022-04-12 | 中船黄埔文冲船舶有限公司 | Straight titanium pipe welding auxiliary device |
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Application publication date: 20130206 |