CN105522266A - Butt joint circular seam reverse side gas shielding device for barrel fusion welding - Google Patents
Butt joint circular seam reverse side gas shielding device for barrel fusion welding Download PDFInfo
- Publication number
- CN105522266A CN105522266A CN201610071670.1A CN201610071670A CN105522266A CN 105522266 A CN105522266 A CN 105522266A CN 201610071670 A CN201610071670 A CN 201610071670A CN 105522266 A CN105522266 A CN 105522266A
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- CN
- China
- Prior art keywords
- gas
- welding
- gas shielding
- barrel
- arc
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
- B23K9/326—Purge gas rings, i.e. devices for supplying or evacuating shielding gas inside of hollow or tubular articles, e.g. pipes, vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
Abstract
Disclosed is a butt joint circular seam reverse side gas shielding device for barrel fusion welding. The butt joint circular seam reverse side gas shielding device for barrel fusion welding is characterized by comprising a welding jig and a gas shielding channel. The welding jig comprises a supporting ring (1), eight adjusting screw rods (2) and eight arc-shaped gas shielding grooves (3), wherein the radian of each arc-shaped gas shielding groove is equal to the inner diameter of a barrel. Air inflation holes (7) are formed in the sides of the gas shielding grooves (3), perforated plates (4) which assist in uniform diffusion of gas are added to the interior of the gas shielding grooves, and sealing grooves (8) are formed in the arc-shaped surfaces, making contact with the inner wall of the barrel, of the two sides of each gas shielding groove (3). The butt joint circular seam reverse side gas shielding device for barrel fusion welding has the advantages that the whole device is flexible in structure, adjustable, and easy and convenient to operate, and adapts to barrel circular seams with different diameters, the effect of gas shielding of a welding seam molten pool and a near weld zone is good, oval deformation of barrel welding can be reduced, the shielding gas is saved, and the time needed by gas replacement in the process of gas ventilation in advance is shortened.
Description
Technical field
The invention belongs to Metal Material Welding processing technique field, be applicable to the cylindrical shell banjo fixing butt jointing arc fusion welding technique of the material such as titanium alloy, stainless steel.
Background technology
In prior art, for preventing titanium alloy and so on material when welding, high temperature molten bath and Jin Feng district, weld seam both sides affect by harmful components in air, joint performance is caused to reduce, normal employing vacuum electron beam welding method, the method welding quality is good, but equipment price is high, is not suitable with single-piece or small lot batch manufacture; Also have by whole section of cylindrical shell closed at both ends or adopt dividing plate mode airtight go out one section of cabin; again by constantly filling, putting the mode of protective gas; to displace in cylindrical shell after air; carry out the method for welding again; but a large amount of consumption of protective gas and the prolongation of weld preparation gas displacement required time can be caused; if employing baffle plate device, dismounting is due to cylindrical shell volume circle irregularity and welding deformation, also relative difficulty.
Summary of the invention
The present invention is just in order to solve a kind of flexible structure that the long-standing problem of prior art provides; adjustable; adapt to different-diameter Circumferential Welds In Cylinders; the Ji Jinfeng district gas shield of weld seam molten bath is respond well; the ovalizing deflection of barrel soldering can be reduced simultaneously; and saving and protection gas, reduce ventilation gas displacement in advance required time, auxiliary welding equipment easy and simple to handle.
The object of the invention is to be achieved through the following technical solutions:
A kind of cylindrical shell melting welding docking circumferential weld backside gas protective device; feature of the present invention is; comprise weld jig and gas shield gas circuit two parts; weld jig is made up of the arc-shaped gas protector that 1 support ring, 8 adjusting screw(rod)s and 8 pieces of radians are identical with cylinder internal diameter; protector side opening is provided with air-filled pore; the porous plate that assist gas evenly spreads is added in groove; protector two sides and cylinder inboard wall contacting surface are provided with seal groove; as larger in cylindrical shell ovalizing deflection; protector cambered surface and inner walls are fitted not tight; when affecting sealing effectiveness, can filled stone cotton cord in groove.Gas shield gas circuit comprises 2 current dividers and 8 tunnel distribution pipelines, and each current divider is provided with an air inlet and 4 gas outlets, and 2 current dividers are arranged in weld jig both sides, and 8 air-filled pores of gas outlet on distribution pipeline respectively with 8 gas shield grooves are connected.During use; arc-shaped gas protector on weld jig is held out against laminating by adjusting screw(rod) and is covered on cylinder inboard wall preparation welding position; 8 arc-shaped gas protectors are interconnected (gap location tape paper auxiliary seal); a ring protection cover is formed at back of weld; start to weld front 2-3 minute logical protective gas in advance; to be replaced go out in arc-shaped gas protector after air; start welding; in groove, high temperature molten bath and Jin Feng district, weld seam both sides and air separate, from its adverse effect by protective gas.
Weld jig of the present invention, with adjusting screw(rod), leaves between gas shield groove and regulates gap, after holding out against, fixture can be prevented owing to occurring after barrel soldering expanded by heating loosening; Easy accessibility, is applicable to cylindrical shell two ends are less than the front and back ring of cylinder internal diameter Welding Structure with internal diameter.
Gas shield groove of the present invention and porous plate material are 1Cr18Ni9Ti stainless steel, porous plate thickness 1mm, and it gathers
hole (11), between hole (11), vertical horizontal spacing is 3mm.
Protector groove width 20mm of the present invention, dark 40mm, porous plate installation site, apart from bottom land 10mm, is adapted to one side welding with back formation welding process.
The invention has the beneficial effects as follows; whole apparatus structure is flexible; adjustable; easy and simple to handle; adapt to different-diameter Circumferential Welds In Cylinders, the Ji Jinfeng district gas shield of weld seam molten bath is respond well, can reduce the ovalizing deflection of barrel soldering simultaneously; and saving and protection gas, reduce the required time of ventilation gas displacement in advance.
Accompanying drawing explanation
Fig. 1 is the structural representation front view of apparatus of the present invention;
Fig. 2 is the structural representation left view of apparatus of the present invention;
Fig. 3 is the structure diagram of TC4 titanium alloy welding cylindrical shell;
Fig. 4 is protector (3) stereogram;
Fig. 5 is current divider (5) stereogram;
Fig. 6 is porous plate (4) sketch front view;
Fig. 7 is porous plate (4) sketch top view.
Detailed description of the invention
See Fig. 1, Fig. 2, a kind of cylindrical shell melting welding docking circumferential weld backside gas protective device, feature of the present invention is, comprise weld jig and gas shield gas circuit two parts, weld jig is by 1 support ring 1, the arc-shaped gas protector 3 that 8 adjusting screw(rod)s 2 are identical with cylinder internal diameter with 8 pieces of radians forms, protector 3 side opening is provided with air-filled pore 7, the porous plate 4 that assist gas evenly spreads is added in groove, protector 3 two sides and cylinder inboard wall contacting surface are provided with seal groove 8, as larger in cylindrical shell ovalizing deflection, protector cambered surface and inner walls are fitted not tight, when affecting sealing effectiveness, can filled stone cotton cord in groove.Gas shield gas circuit comprises 2 current dividers 5 and 8 tunnel distribution pipeline 6; each current divider 5 is provided with an air inlet 9 and 4 gas outlets 10; 2 current dividers 5 are arranged in weld jig both sides, and 8 air-filled pores 7 of gas outlet 10 on distribution pipeline respectively with 8 gas shield grooves are connected.During use; arc-shaped gas protector 3 on weld jig is held out against laminating by adjusting screw(rod) 2 and is covered on cylinder inboard wall preparation welding position; 8 arc-shaped gas protectors 3 are interconnected [gap location tape paper auxiliary seal]; a ring protection cover is formed at back of weld; start to weld front 2-3 minute logical protective gas in advance; to be replaced go out in arc-shaped gas protector 3 after air; start welding; in groove, high temperature molten bath and Jin Feng district, weld seam both sides and air separate, from its adverse effect by protective gas.
Weld jig of the present invention, with adjusting screw(rod), leaves between gas shield groove and regulates gap, after holding out against, fixture can be prevented owing to occurring after barrel soldering expanded by heating loosening; Easy accessibility, is applicable to cylindrical shell two ends are less than the front and back ring of cylinder internal diameter Welding Structure with internal diameter.
Gas shield groove of the present invention and porous plate material are 1Cr18Ni9Ti stainless steel, porous plate thickness 1mm, and it gathers
aperture, between aperture, vertical horizontal spacing is 3mm.
Protector groove width 20mm of the present invention, dark 40mm, porous plate installation site, apart from bottom land 10mm, is adapted to one side welding with back formation welding process.
Cylindrical shell wall thickness 8mm of the present invention, roll up weldering by 14mm heavy-gauge sheeting to form, inside and outside wall is all through turning, the front ring in two ends, rear ring and cylindrical shell are that I type groove docks, do not stay gap, adopt variable polarity plasma arc welding through welding two-sides forming welding procedure, the ring rib of cylinder inboard wall supplemental support adopts manual argon arc welding intermittent fillet weld to be connected with cylindrical shell.Apparatus of the present invention are used for the banjo fixing butt jointing girth welding of ring before and after cylindrical shell and two ends, using method and step as follows:
A, the cylindrical shell that need weld and front ring, rear ring align spot welding and locate;
B, in cylinder inboard wall joint both sides, centered by weld seam, divide equally gas shield well width, mark gas shield groove rigging position line;
C, regulate welder adjusting screw(rod), by scribing position, hold out against at cylinder inboard wall by gas shield groove, the paper of taping of the gap between each protector is closed;
D, unlatching gas cylinder, ventilate a few minutes in advance, displace air in protector, start welding;
E, adjustment welder adjusting screw(rod), take out weld jig.
After having welded, face of weld is silvery white in color, through x-ray inspection display, and inner pore-free defect.
Claims (4)
1. a cylindrical shell melting welding docking circumferential weld backside gas protective device, is characterized in that, comprise weld jig and gas shield gas circuit two parts; Wherein weld jig is connected to form by the arc-shaped gas protector (3) that 1 support ring (1), 8 adjusting screw(rod)s (2) and 8 pieces of radians are identical with cylinder internal diameter; Protector (3) side opening is provided with air-filled pore (7), be added with the porous plate (4) that assist gas evenly spreads in groove, protector (3) two sides and cylinder inboard wall contacting surface are provided with seal groove (8); Gas shield gas circuit comprises 2 current dividers (5) and 8 tunnel distribution pipelines (6), each current divider (5) is provided with an air inlet (9) and 4 gas outlets (10), 2 current dividers (5) are arranged in weld jig both sides, and 8 gas outlets (10) are connected with the air-filled pore (7) on distribution pipeline respectively with 8 gas shield grooves; Arc-shaped gas protector (3) on weld jig is held out against laminating by adjusting screw(rod) (2) and is covered on cylinder inboard wall preparation welding position; 8 arc-shaped gas protectors (3) are interconnected, and form a ring protection cover at back of weld.
2. a kind of cylindrical shell melting welding docking circumferential weld backside gas protective device according to claim 1, is characterized in that: weld jig, with adjusting screw(rod), leaves between gas shield groove and regulates gap.
3. a kind of cylindrical shell melting welding docking circumferential weld backside gas protective device according to claim 1; it is characterized in that: gas shield groove and porous plate material are 1Cr18Ni9Ti stainless steel; porous plate thickness 1mm; it is densely covered with φ 2 hole (11), between hole (11), vertical horizontal spacing is 3mm.
4. a kind of cylindrical shell melting welding docking circumferential weld backside gas protective device according to claim 1, it is characterized in that: protector groove width 20mm, dark 40mm, porous plate installation site distance bottom land 10mm, to adapt to one side welding with back formation welding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071670.1A CN105522266A (en) | 2016-02-02 | 2016-02-02 | Butt joint circular seam reverse side gas shielding device for barrel fusion welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071670.1A CN105522266A (en) | 2016-02-02 | 2016-02-02 | Butt joint circular seam reverse side gas shielding device for barrel fusion welding |
Publications (1)
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| CN105522266A true CN105522266A (en) | 2016-04-27 |
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|---|---|---|---|
| CN201610071670.1A Pending CN105522266A (en) | 2016-02-02 | 2016-02-02 | Butt joint circular seam reverse side gas shielding device for barrel fusion welding |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216822A (en) * | 2016-09-20 | 2016-12-14 | 上海电气核电设备有限公司 | A kind of gas shield device of back of weld |
| CN106270921A (en) * | 2016-08-30 | 2017-01-04 | 苏州海陆重工股份有限公司 | Inner reinforced plate welding method in lower heap core shell base in HTGR |
| CN107617989A (en) * | 2017-09-29 | 2018-01-23 | 苏州海陆重工股份有限公司 | Pin-connected panel holds round frock |
| CN107825009A (en) * | 2017-10-31 | 2018-03-23 | 中国核工业二三建设有限公司 | A kind of air inflation protecting device for welding of pipeline |
| CN109882658A (en) * | 2019-04-12 | 2019-06-14 | 祝传淇 | A kind of adaptable circular tube support frame |
| CN109940335A (en) * | 2019-04-25 | 2019-06-28 | 昆山贺崧焊割设备有限公司 | Circular Thin pipe butt welding tolerance limitless defense right welding fixture |
| CN109986245A (en) * | 2019-04-18 | 2019-07-09 | 哈尔滨汽轮机厂有限责任公司 | A kind of pipeline group welding equipment back-pressure protection tool |
| CN110560854A (en) * | 2019-08-27 | 2019-12-13 | 中国石油天然气集团公司 | Pipeline circumference segmentation back argon filling protection mechanism |
| CN110961856A (en) * | 2019-12-13 | 2020-04-07 | 西安飞机工业（集团）有限责任公司 | Catheter inner diameter self-adaptive petal type expansion and contraction device and using method |
| CN111069825A (en) * | 2018-10-18 | 2020-04-28 | 宁波方太厨具有限公司 | Positioning and clamping tool for manual groove plane and arc integrated automatic welding |
| CN111099191A (en) * | 2019-12-03 | 2020-05-05 | 青岛双瑞海洋环境工程股份有限公司 | Corrosion-resistant protection method for ship metal composite plate container |
| CN112139749A (en) * | 2020-09-23 | 2020-12-29 | 中国航发贵州黎阳航空动力有限公司 | Welding tool and welding method for annular cylinder mounting seat |
| CN112171054A (en) * | 2019-07-03 | 2021-01-05 | 通快激光与系统工程有限公司 | Laser welding auxiliary gas applying device, manufacturing method thereof and laser welding system |
| CN112247320A (en) * | 2020-10-20 | 2021-01-22 | 上海东鼎钢结构有限公司 | Large-caliber duplex stainless steel butt-joint protection welding device |
| CN112719516A (en) * | 2020-12-10 | 2021-04-30 | 渤海造船厂集团有限公司 | Flexible adjustable type cylindrical structure girth welding protection air sealing device and method |
| CN113182653A (en) * | 2021-04-08 | 2021-07-30 | 无锡新松机器人自动化有限公司 | Gas protection device for back of shell ring welding |
| CN113523514A (en) * | 2021-05-18 | 2021-10-22 | 合肥聚能电物理高技术开发有限公司 | Welding seam back gas protection and forming device for pipeline welding and application thereof |
| WO2022078089A1 (en) * | 2020-10-16 | 2022-04-21 | 中国电建集团山东电力建设第一工程有限公司 | High-alloy large-diameter pipeline welding method and argon-shielded protective device therefor |
| CN115229408A (en) * | 2022-07-01 | 2022-10-25 | 广州明珞装备股份有限公司 | Fixture for laser welding, laser welding workstation and method |
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| CN106270921B (en) * | 2016-08-30 | 2018-04-17 | 苏州海陆重工股份有限公司 | Inner reinforced plate welding method in high temperature gas cooled reactor in lower heap core shell base |
| CN106270921A (en) * | 2016-08-30 | 2017-01-04 | 苏州海陆重工股份有限公司 | Inner reinforced plate welding method in lower heap core shell base in HTGR |
| CN106216822A (en) * | 2016-09-20 | 2016-12-14 | 上海电气核电设备有限公司 | A kind of gas shield device of back of weld |
| CN107617989A (en) * | 2017-09-29 | 2018-01-23 | 苏州海陆重工股份有限公司 | Pin-connected panel holds round frock |
| CN107617989B (en) * | 2017-09-29 | 2023-10-13 | 苏州海陆重工股份有限公司 | Assembled circle supporting tool |
| CN107825009A (en) * | 2017-10-31 | 2018-03-23 | 中国核工业二三建设有限公司 | A kind of air inflation protecting device for welding of pipeline |
| CN111069825A (en) * | 2018-10-18 | 2020-04-28 | 宁波方太厨具有限公司 | Positioning and clamping tool for manual groove plane and arc integrated automatic welding |
| CN111069825B (en) * | 2018-10-18 | 2021-08-20 | 宁波方太厨具有限公司 | Positioning and clamping tool for manual groove plane and arc integrated automatic welding |
| CN109882658A (en) * | 2019-04-12 | 2019-06-14 | 祝传淇 | A kind of adaptable circular tube support frame |
| CN109986245A (en) * | 2019-04-18 | 2019-07-09 | 哈尔滨汽轮机厂有限责任公司 | A kind of pipeline group welding equipment back-pressure protection tool |
| CN109940335A (en) * | 2019-04-25 | 2019-06-28 | 昆山贺崧焊割设备有限公司 | Circular Thin pipe butt welding tolerance limitless defense right welding fixture |
| CN112171054A (en) * | 2019-07-03 | 2021-01-05 | 通快激光与系统工程有限公司 | Laser welding auxiliary gas applying device, manufacturing method thereof and laser welding system |
| CN110560854A (en) * | 2019-08-27 | 2019-12-13 | 中国石油天然气集团公司 | Pipeline circumference segmentation back argon filling protection mechanism |
| CN111099191A (en) * | 2019-12-03 | 2020-05-05 | 青岛双瑞海洋环境工程股份有限公司 | Corrosion-resistant protection method for ship metal composite plate container |
| CN111099191B (en) * | 2019-12-03 | 2022-02-08 | 青岛双瑞海洋环境工程股份有限公司 | Corrosion-resistant protection method for ship metal composite plate container |
| CN110961856A (en) * | 2019-12-13 | 2020-04-07 | 西安飞机工业（集团）有限责任公司 | Catheter inner diameter self-adaptive petal type expansion and contraction device and using method |
| CN112139749A (en) * | 2020-09-23 | 2020-12-29 | 中国航发贵州黎阳航空动力有限公司 | Welding tool and welding method for annular cylinder mounting seat |
| WO2022078089A1 (en) * | 2020-10-16 | 2022-04-21 | 中国电建集团山东电力建设第一工程有限公司 | High-alloy large-diameter pipeline welding method and argon-shielded protective device therefor |
| CN112247320A (en) * | 2020-10-20 | 2021-01-22 | 上海东鼎钢结构有限公司 | Large-caliber duplex stainless steel butt-joint protection welding device |
| CN112719516A (en) * | 2020-12-10 | 2021-04-30 | 渤海造船厂集团有限公司 | Flexible adjustable type cylindrical structure girth welding protection air sealing device and method |
| CN112719516B (en) * | 2020-12-10 | 2022-06-14 | 渤海造船厂集团有限公司 | Flexible adjustable type cylindrical structure girth welding protection air sealing device and method |
| CN113182653A (en) * | 2021-04-08 | 2021-07-30 | 无锡新松机器人自动化有限公司 | Gas protection device for back of shell ring welding |
| CN113523514A (en) * | 2021-05-18 | 2021-10-22 | 合肥聚能电物理高技术开发有限公司 | Welding seam back gas protection and forming device for pipeline welding and application thereof |
| CN115229408A (en) * | 2022-07-01 | 2022-10-25 | 广州明珞装备股份有限公司 | Fixture for laser welding, laser welding workstation and method |
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