CN203140951U - Gas protection device for all-position tube plate automatic argon arc welding - Google Patents
Gas protection device for all-position tube plate automatic argon arc welding Download PDFInfo
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- CN203140951U CN203140951U CN 201320086660 CN201320086660U CN203140951U CN 203140951 U CN203140951 U CN 203140951U CN 201320086660 CN201320086660 CN 201320086660 CN 201320086660 U CN201320086660 U CN 201320086660U CN 203140951 U CN203140951 U CN 203140951U
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Abstract
The utility model discloses a gas protection device for all-position tube plate automatic argon arc welding. The gas protection device for the all-position tube plate automatic argon arc welding is used for welding a nonferrous metal and alloy heat exchange tube with a tube plate joint in the pressure vessel manufacturing process, and belongs to the technical field of pressure vessel welding. The gas protection device for the all-position tube plate automatic argon arc welding comprises a tube plate, a gas protection welding nozzle and tungsten electrode, a locating rod, a oxidizable nonferrous metal and alloy heat exchange tube and a groove, wherein the locating rod is provided with a protection gas overflow hole; and protection gas overflown from the protection gas overflow hole and protection gas overflown from the gas protection welding nozzle and tungsten electrode are mutually cooperated to form a gas protection area so that the inner airflow and the outer airflow of the nonferrous metal and alloy heat exchange tube are stable. According to the gas protection device for the all-position tube plate automatic argon arc welding, which is disclosed by the utility model, in the welding of the nonferrous metal and alloy heat exchange tube and the tube plate joint, the protection effect of a welding line and a heat affecting area is good, welding equipment is convenient to operate, and the welding protection difficulty is reduced. The first-pass yield of welding is improved, and the postwelding repair rate is lowered, thereby being favorable for improving the production efficiency and shortening the manufacturing period.
Description
Technical field
The utility model relates to a kind of gas shield device of full position tube sheet argonaut welding.
Background technology
Argon tungsten-arc welding be for overcome welding method (as manual metal-arc welding or submerged-arc welding etc.) with slag protection or gas slag Combined Protection in welding process easily and non-ferrous metal and alloy chemically reactives thereof such as the active aluminium of chemical property, titanium, magnesium, copper, nickel, slag is soluble in the liquid metal.A kind of welding method that drawbacks such as the weld metal purity that obtains is low, defective impurity is many grow up.
The employed welding current of argon tungsten-arc welding is subjected to the restriction of tungsten electrode current capacity, and arc power is less, and the electric arc penetration power is little, and fusion penetration is shallow and speed of welding is low, and therefore, its welding efficiency is lower.At present in the full position argon tungsten-arc welding welding process of non-ferrous metal and alloy thereof; extremely active because of non-ferrous metal and alloy thereof; the protection effect of existing gas shield mode is relatively poor; weld seam and heat affected area thereof are prone to oxidative phenomena; be subjected to the influence of outer protection gas hood, welding equipment operation inconvenience, welding efficiency is low; postwelding reclamation work labour intensity is big, and the protective gas use amount is big.These effects limit the manufacturing efficient of petrochemical equipment of non-ferrous metal and alloy thereof.
Therefore, find a kind of welding effect good, the efficient height reduces postwelding and reprocesses labour intensity, save resource the gas shield mode of full position tube sheet argonaut welding very necessary.
The utility model content
The purpose of this utility model is to provide a kind of gas shield device of full position tube sheet argonaut welding; to solve when the heat exchanger tube welding of the pressure vessel of non-ferrous metal and alloy thereof; logical argon shield in the prior welding mode heat exchanger tube; the protection of outside employing argon gas cover; adopt the inner easily oxidation of heat exchanger tube of water-cooling pattern simultaneously; welding efficiency is low, and the welding first-time qualification rate is low, and postwelding is reprocessed technical problems such as labour intensity is big.
The utility model is achieved through the following technical solutions goal of the invention:
A kind of full position tube sheet argonaut welding gas shield device comprises tube sheet, gas shielded arc welding nozzle and tungsten electrode, and backstay, non-ferrous metal and the alloy heat exchanger tube thereof of easy oxidation, groove has protection gas overfolw hole on the described backstay; The protection gas that the protection gas that this protection gas overfolw hole overflows and described gas shielded arc welding nozzle and tungsten electrode overflow complements each other to form the gas shield zone of described non-ferrous metal and the inside and outside steady air current of alloy heat exchanger tube thereof.
Described protection gas overfolw hole distributes symmetrically around described backstay, and diameter is 1-2mm; The distance L of this protection gas overfolw hole and described groove is 5 ~ 8mm.
When the distance L of the diameter of described protection gas overfolw hole and protection gas overfolw hole and described groove is taken off limit value, the welding bottom; During the distance L capping value of the diameter of described protection gas overfolw hole and protection gas overfolw hole and described groove, the welding surface layer.
The utlity model has following advantage:
With logical argon shield in the traditional argon arc welding heat exchanger tube; the protection of outside employing argon gas cover; adopt water-cooling pattern to compare simultaneously; do not need the outside protection gas hood that adopts in the welding process; welding equipment operation looking away; easy to operate; welding efficiency is improved; in the welding process; argon gas that the argon gas gas hood of heat exchanger tube outside and improved backstay overflow form from inside to outside butt welded seam and the even protection of heat affected area, the protection of weld seam and heat affected area is effective, and the argon gas amount of overflowing in the backstay is much smaller than the mode of the inner logical argon gas of original heat exchanger tube; it is few to feed the argon gas amount, energy savings.Postwelding weld appearance quality is good, and the inside and outside non-oxidation phenomenon of heat exchanger tube need not cleaning, and labour intensity reduces; Postwelding first-time qualification rate height, repair rate is low.
Description of drawings
Fig. 1 is the full position argon tungsten-arc welding of the utility model navigation system schematic diagram.
Among the figure: 1-tube sheet, 2-gas shielded arc welding nozzle and tungsten electrode, 3-backstay, 4-non-ferrous metal and alloy heat exchanger tube thereof, 5-groove, L-protection gas overfolw hole are protected the gas overfolw hole apart from distance, the 6-of groove
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
With reference to Fig. 1, a kind of full position tube sheet argonaut welding gas shield device comprises tube sheet 1, gas shielded arc welding nozzle and tungsten electrode 2, and backstay 3, non-ferrous metal and the alloy heat exchanger tube 4 thereof of easy oxidation, groove 5 has protection gas overfolw hole 6 on the described backstay 3; The protection gas that the protection gas that this protection gas overfolw hole 6 overflows and described gas shielded arc welding nozzle and tungsten electrode 2 overflow complements each other to form the gas shield zone of described non-ferrous metal and alloy heat exchanger tube 4 inside and outside steady air currents thereof.
Described protection gas overfolw hole 6 distributes symmetrically around described backstay 3, and diameter is 1-2mm; The distance L of this protection gas overfolw hole 6 and described groove 5 is 5 ~ 8mm.
When the diameter of described protection gas overfolw hole 6 and L take off limit value, the welding bottom; When the diameter of described protection gas overfolw hole 6 and L capping value, the welding surface layer.
Claims (3)
1. full position tube sheet argonaut welding gas shield device, comprise tube sheet (1), gas shielded arc welding nozzle and tungsten electrode (2), backstay (3), non-ferrous metal and the alloy heat exchanger tube (4) thereof of easy oxidation, groove (5) is characterized in that: have protection gas overfolw hole (6) on the described backstay (3); The protection gas that the protection gas that this protection gas overfolw hole (6) overflows and described gas shielded arc welding nozzle and tungsten electrode (2) overflow complements each other to form the gas shield zone of described non-ferrous metal and the inside and outside steady air current of alloy heat exchanger tube (4) thereof.
2. a kind of full position tube sheet argonaut welding gas shield device according to claim 1, it is characterized in that: described protection gas overfolw hole (6) distributes symmetrically around described backstay (3), and diameter is 1-2mm; The distance L of this protection gas overfolw hole (6) and described groove (5) is 5 ~ 8mm.
3. a kind of full position tube sheet argonaut welding gas shield device according to claim 2, it is characterized in that: when the distance L of the diameter of described protection gas overfolw hole (6) and described protection gas overfolw hole (6) and described groove (5) is taken off limit value, the welding bottom; During the distance L capping value of the diameter of described protection gas overfolw hole (6) and protection gas overfolw hole (6) and described groove (5), weld surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086660 CN203140951U (en) | 2013-02-26 | 2013-02-26 | Gas protection device for all-position tube plate automatic argon arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086660 CN203140951U (en) | 2013-02-26 | 2013-02-26 | Gas protection device for all-position tube plate automatic argon arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203140951U true CN203140951U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320086660 Expired - Fee Related CN203140951U (en) | 2013-02-26 | 2013-02-26 | Gas protection device for all-position tube plate automatic argon arc welding |
Country Status (1)
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| CN (1) | CN203140951U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817415A (en) * | 2014-02-26 | 2014-05-28 | 睿能（沈阳）热泵技术有限公司 | Welding method for titanium tube with ultra-thin wall |
| CN104708169A (en) * | 2013-12-12 | 2015-06-17 | 中国核工业第五建设有限公司 | Automatic pipe plate welder |
| CN105935832A (en) * | 2016-07-06 | 2016-09-14 | 兰州兰石重型装备股份有限公司 | Titanium heat exchange tube welded argon shield device and using method thereof |
| CN106825878A (en) * | 2017-03-02 | 2017-06-13 | 开封空分集团有限公司 | A kind of pipe sheet for automatic welder positioner |
| CN107470807A (en) * | 2017-08-18 | 2017-12-15 | 合肥通用机械研究院 | It is a kind of to be used for the servicing unit of welded tube and the application method of the device in hole |
| CN107855692A (en) * | 2017-11-28 | 2018-03-30 | 哈尔滨行健智能机器人股份有限公司 | Tube-sheet Welding robotic gun gas shield device |
| CN113664342A (en) * | 2021-08-31 | 2021-11-19 | 西安航天华威化工生物工程有限公司 | Process for welding through strength welding joint between heat exchange tube and tube plate of reactor or heat exchanger |
-
2013
- 2013-02-26 CN CN 201320086660 patent/CN203140951U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708169A (en) * | 2013-12-12 | 2015-06-17 | 中国核工业第五建设有限公司 | Automatic pipe plate welder |
| CN104708169B (en) * | 2013-12-12 | 2017-11-21 | 中国核工业第五建设有限公司 | Automatic Tubesheet welding machine |
| CN103817415A (en) * | 2014-02-26 | 2014-05-28 | 睿能（沈阳）热泵技术有限公司 | Welding method for titanium tube with ultra-thin wall |
| CN103817415B (en) * | 2014-02-26 | 2015-11-25 | 睿能（沈阳）热泵技术有限公司 | A kind of welding method of titanium ultra-thin tube |
| CN105935832A (en) * | 2016-07-06 | 2016-09-14 | 兰州兰石重型装备股份有限公司 | Titanium heat exchange tube welded argon shield device and using method thereof |
| CN106825878A (en) * | 2017-03-02 | 2017-06-13 | 开封空分集团有限公司 | A kind of pipe sheet for automatic welder positioner |
| CN107470807A (en) * | 2017-08-18 | 2017-12-15 | 合肥通用机械研究院 | It is a kind of to be used for the servicing unit of welded tube and the application method of the device in hole |
| CN107855692A (en) * | 2017-11-28 | 2018-03-30 | 哈尔滨行健智能机器人股份有限公司 | Tube-sheet Welding robotic gun gas shield device |
| CN107855692B (en) * | 2017-11-28 | 2024-03-29 | 芜湖行健智能机器人有限公司 | Welding gun gas protection device of tube plate welding robot |
| CN113664342A (en) * | 2021-08-31 | 2021-11-19 | 西安航天华威化工生物工程有限公司 | Process for welding through strength welding joint between heat exchange tube and tube plate of reactor or heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20210226 |