CN106735780B - A kind of joint structure and welding method of tube butt welding - Google Patents
A kind of joint structure and welding method of tube butt welding Download PDFInfo
- Publication number
- CN106735780B CN106735780B CN201710037614.0A CN201710037614A CN106735780B CN 106735780 B CN106735780 B CN 106735780B CN 201710037614 A CN201710037614 A CN 201710037614A CN 106735780 B CN106735780 B CN 106735780B
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- Prior art keywords
- root face
- welding
- convex
- spill
- melting ring
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Classifications
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- 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
- B23K9/235—Preliminary treatment
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Abstract
A kind of joint structure and welding method of tube butt welding, convex root face and spill root face are processed on two adapter tubes for needing to weld respectively, and process melting ring, melting ring is placed between two adapter tube end faces, it is mutually matched convex root face and spill root face position on two adapter tubes, using melting ring as packing material, automatic heliarc welding is carried out, completes the all-position welding of adapter tube.Present invention reduces assembly when unfitness of butt joint, make connector convex, it is outer it is recessed meet design requirement, improve the stability of welding quality and welding.
Description
Technical field
The present invention relates to a kind of joint structure of tube butt welding and welding methods.
Background technique
The tube wall of temperature gas cooled reactor steam generator heat exchanger tube is thicker, and butt welding is more demanding, and pipe assembles unfitness of butt joint, weldering
Inner wall bulge quantity, outer wall amount of recess should be less than certain value afterwards.Further, since actual welding spatial position is smaller, heat exchanger tube
Between minimum range there was only 40mm, according to landfilling area, can cause wire feeder that can not arrive since space is smaller between partial tube
It reaches, it is difficult to realize welding；Packing material is served as in conjunction with automatic heliarc Welding, although all positon may be implemented according to melting ring
Welding, but it is difficult to ensure assembly unfitness of butt joint and convex, outer recessed requirement.
Summary of the invention
The present invention provides the joint structure and welding method of a kind of tube butt welding, reduces unfitness of butt joint when assembly, makes
Connector convex, it is outer it is recessed meet design requirement, improve the stability of welding quality and welding.
In order to achieve the above object, the present invention provides a kind of joint structure of tube butt welding, includes: setting connects first
The convex root face of pipe end, the spill root face and melting ring that the second adapter tube end is set.
The end face and inner wall junction at the first adapter tube end is arranged in the convex root face, and the spill root face setting exists
The end face and inner wall junction at the second adapter tube end.
The height of the convex root face is equal to the thickness of melting ring and the sum of the depth of spill root face, the thickness of convex root face
Degree is equal to the thickness of spill root face.
The internal diameter of the melting ring is equal to the outer diameter of convex root face, and the outer diameter of melting ring is greater than the outer diameter of adapter tube.
The present invention also provides a kind of methods of tube butt welding comprising the steps of:
Step S1, convex root face and spill root face are processed on two adapter tubes for needing to weld respectively, and process melting ring,
The size of convex root face, spill root face and melting ring is mutually matched；
Step S2, melting ring is placed between two adapter tube end faces, keeps two convex root faces taken over and spill blunt
Side position is mutually matched；
Step S3, using melting ring as packing material, automatic heliarc welding is carried out, completes the all-position welding of adapter tube.
The present invention processes convex root face and spill root face in adapter tube end face respectively, and using the technique of addition melting ring, drop
Unfitness of butt joint when low assembly, makes connector convex, evagination meet design requirement, improves the stabilization of welding quality and welding
Property.
Detailed description of the invention
Fig. 1 is the joint structure schematic diagram of tube butt welding provided by the invention.
Fig. 2 is the structural schematic diagram of convex root face.
Fig. 3 is the structural schematic diagram of spill root face.
Fig. 4 is the structural schematic diagram of melting ring.
Fig. 5 is the partial schematic diagram of tube butt welding.
Specific embodiment
Below according to FIG. 1 to FIG. 5, presently preferred embodiments of the present invention is illustrated.
As shown in Figure 1, the present invention provides a kind of joint structure of tube butt welding, include: setting takes over end 11 first
On convex root face 1, be arranged in second adapter tube end 22 on spill root face 2 and melting ring 3 (as shown in Figure 4).
As depicted in figs. 1 and 2, the end face and inner wall junction at the first adapter tube end 11 is arranged in the convex root face 1.Such as
Shown in Fig. 1 and Fig. 3, the end face and inner wall junction at the second adapter tube end 22 is arranged in the spill root face 2.
As shown in figure 5, the height H1 of the convex root face 1 is equal to the thickness H3 of melting ring 3 and the depth of spill root face 2
The sum of H2, the thickness of convex root face 1 are equal to the thickness of spill root face 2, the height of convex root face 1, the thickness of spill root face 2 and molten
The depth for changing ring 3 is related to actual welding material and selection welding parameter.The internal diameter of melting ring 3 is equal to the outer diameter of convex root face 1,
The outer diameter of melting ring 3 is greater than the outer diameter of adapter tube, depending on the outer diameter visual fusion ring thickness and welding parameter of melting ring 3, adapter tube
Outer diameter it is unlimited, as long as be less than welding head clamp diameter, 1~5mm of adapter tube wall thickness.
The present invention also provides a kind of tube butt welding methods comprising the steps of:
Step S1, convex root face 1 and spill root face 2 are processed on two adapter tubes for needing to weld respectively, and processes fusing
The size of ring 3, convex root face 1, spill root face 2 and melting ring 3 is mutually matched；
The height of the convex root face 1 is equal to the thickness of melting ring 3 and the sum of the depth of spill root face 2, convex root face 1
Thickness be equal to the thickness of spill root face 2, the internal diameter of melting ring 3 is equal to the outer diameter of convex root face 1, and the outer diameter of melting ring 3 is greater than
The outer diameter of adapter tube；
Step S2, melting ring 3 is placed between two adapter tube end faces, makes the convex root face 1 and spill on two adapter tubes
2 position of root face is mutually matched；
Step S3, using melting ring 3 as packing material, automatic heliarc welding is carried out, completes the all-position welding of adapter tube.
In the present embodiment, automatic helium is carried out using the closed welding head of the special L-type of steam generator pipe butt welding
Arc welding, back are protected using argon gas, and core is protected using helium, and adapter tube position is fixed in the whole welding process, weldering
Rifle is rotated around adapter tube, and tungsten electrode rotation, welding head is clamped on pipe, the welding of the position 2G.
Compared to landfilling area, the present invention may be implemented the all-position welding of steam generator heat-transfer pipe, right in welding process
The requirement in space is smaller, and weldquality meets related request after butt welding, compared to the mode for only adding melting ring, this hair
The bright unfitness of butt joint that can use convex root face and spill root face when reducing assembly, make connector convex, it is outer it is recessed meet design requirement, and
And melting ring can play fixed function using convex root face and spill root face in assembly, can further improve welding quality and
The stability of welding.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (2)
1. a kind of joint structure of tube butt welding is, characterized by comprising: the convex root face that setting takes over end (11) first
(1), the spill root face (2) and melting ring (3) in the second adapter tube end (22) are set；
Convex root face (1) setting is in the end face and inner wall junction of the first adapter tube end (11), the spill root face (2)
It is arranged in the end face and inner wall junction of the second adapter tube end (22)；
The height of the convex root face (1) is equal to the thickness of melting ring (3) and the sum of the depth of spill root face (2), and convex is blunt
The thickness on side (1) is equal to the thickness of spill root face (2)；
The internal diameter of the melting ring (3) is equal to the outer diameter of convex root face (1), and the outer diameter of melting ring (3) is greater than the outer diameter of adapter tube.
2. a kind of tube butt welding method that the joint structure using tube butt welding as described in claim 1 carries out, special
Sign is comprising the steps of:
Step S1, convex root face (1) and spill root face (2) are processed on two adapter tubes for needing to weld respectively, and processes fusing
The size of ring (3), convex root face (1), spill root face (2) and melting ring (3) is mutually matched；
Step S2, melting ring (3) is placed between two adapter tube end faces, makes the convex root face (1) and spill on two adapter tubes
Root face (2) position is mutually matched；
Step S3, using melting ring (3) as packing material, automatic heliarc welding is carried out, completes the all-position welding of adapter tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037614.0A CN106735780B (en) | 2017-01-18 | 2017-01-18 | A kind of joint structure and welding method of tube butt welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037614.0A CN106735780B (en) | 2017-01-18 | 2017-01-18 | A kind of joint structure and welding method of tube butt welding |
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| Publication Number | Publication Date |
|---|---|
| CN106735780A CN106735780A (en) | 2017-05-31 |
| CN106735780B true CN106735780B (en) | 2019-10-22 |
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| CN201710037614.0A Active CN106735780B (en) | 2017-01-18 | 2017-01-18 | A kind of joint structure and welding method of tube butt welding |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110043485A (en) * | 2019-05-16 | 2019-07-23 | 江苏博联硕焊接技术有限公司 | A kind of turbo-molecular pump rotor and its diffusion welding method |
| CN110576289A (en) * | 2019-09-26 | 2019-12-17 | 上海电气核电设备有限公司 | Clamping tool for improving forming quality of butt weld of heat exchange tube and welding process thereof |
| CN111842936B (en) * | 2020-07-22 | 2022-04-22 | 哈电集团（秦皇岛）重型装备有限公司 | Automatic welding method for small-diameter pipe and corresponding welding ring processing and clamping device |
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|---|---|---|---|---|
| EP0095976A1 (en) * | 1982-05-26 | 1983-12-07 | Framatome | Welding process for two elements |
| JPS6092077A (en) * | 1983-10-24 | 1985-05-23 | Seo Koatsu Kogyo Kk | Welding method of butted part of pipe |
| JP2000158131A (en) * | 1998-11-30 | 2000-06-13 | Tokai Rubber Ind Ltd | Butt welding coupling structure |
| CN201950378U (en) * | 2011-01-12 | 2011-08-31 | 哈电集团（秦皇岛）重型装备有限公司 | Melting ring for butt welding of dissimilar steel heat exchange tube |
| CN102363236A (en) * | 2011-10-08 | 2012-02-29 | 阮继成 | Metal pipe fitting welding method and metal pipe fitting welding component |
| CN103170768A (en) * | 2011-12-21 | 2013-06-26 | 哈电集团（秦皇岛）重型装备有限公司 | Small-caliber straight pipe butt welding device |
| CN105081622A (en) * | 2015-09-14 | 2015-11-25 | 沈阳飞机工业（集团）有限公司 | Method for manufacturing and pre-installing brazing filler material ring |
| CN105195913A (en) * | 2015-10-20 | 2015-12-30 | 苏州热工研究院有限公司 | On-site pipeline narrow gap welding groove structure and assembly method thereof |
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2017
- 2017-01-18 CN CN201710037614.0A patent/CN106735780B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0095976A1 (en) * | 1982-05-26 | 1983-12-07 | Framatome | Welding process for two elements |
| JPS6092077A (en) * | 1983-10-24 | 1985-05-23 | Seo Koatsu Kogyo Kk | Welding method of butted part of pipe |
| JP2000158131A (en) * | 1998-11-30 | 2000-06-13 | Tokai Rubber Ind Ltd | Butt welding coupling structure |
| CN201950378U (en) * | 2011-01-12 | 2011-08-31 | 哈电集团（秦皇岛）重型装备有限公司 | Melting ring for butt welding of dissimilar steel heat exchange tube |
| CN102363236A (en) * | 2011-10-08 | 2012-02-29 | 阮继成 | Metal pipe fitting welding method and metal pipe fitting welding component |
| CN103170768A (en) * | 2011-12-21 | 2013-06-26 | 哈电集团（秦皇岛）重型装备有限公司 | Small-caliber straight pipe butt welding device |
| CN105081622A (en) * | 2015-09-14 | 2015-11-25 | 沈阳飞机工业（集团）有限公司 | Method for manufacturing and pre-installing brazing filler material ring |
| CN105195913A (en) * | 2015-10-20 | 2015-12-30 | 苏州热工研究院有限公司 | On-site pipeline narrow gap welding groove structure and assembly method thereof |
Non-Patent Citations (1)
| Title |
|---|
| "核岛主设备稳压器加热器全自动焊接工艺";廖国平;《电焊机》;20110120;第41卷(第1期);文章第47-48页 * |
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| CN106735780A (en) | 2017-05-31 |
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