CN109262156A - A kind of root penetration welding method of permanent liner T junction - Google Patents
A kind of root penetration welding method of permanent liner T junction Download PDFInfo
- Publication number
- CN109262156A CN109262156A CN201811409324.5A CN201811409324A CN109262156A CN 109262156 A CN109262156 A CN 109262156A CN 201811409324 A CN201811409324 A CN 201811409324A CN 109262156 A CN109262156 A CN 109262156A
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- CN
- China
- Prior art keywords
- junction
- welding
- liner
- web
- wing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
Abstract
The present invention relates to a kind of root penetration welding methods of permanent liner T junction, improve the structure type of liner, V-butt is opened up in liner root, groove face width and bevel angle are determined according to web and wing plate preset clearance, bevel side will be padded before weldering towards T junction groove, be reserved certain gap progress spot welding and fixed, carry out local preheating before welding, prime coat is using swing gimmick, one of welding forming.Structure of the invention improvement is simple, easily operated, application is strong.
Description
Technical field
The invention belongs to the technical field of welding procedure production, in particular to a kind of root of permanent liner T junction is molten
Saturating welding method.
Background technique
In welding structure tectonic sieving, it is frequently encountered welding and examines the problem of accessibility deficiency.For example it is designing
It when welding narrow box-shaped beam column construction using gas metal-arc welding, is limited by space, welder is difficult to close and sees weldering clearly
Socket part position, welding gun cannot be in correct welding operating position, and then be difficult to ensure and obtain good appearance of weld and quality.Needle
It to this problem, usually designs and opens single groove on the outside, the form that back side setting permanently pads is to prevent from burning.However in reality
In the welding production of border, the defects of easily generating root incomplete fusion, crackle in the type weld seam welding process, especially in wide arc gap
The welding of slab.Root incomplete fusion, crack defect are mostly present in the weld seam for the T junction that band permanently pads in the form of planar,
It makes the reduction of weld seam effective area, strength reduction, the decline of plasticity toughness, generates stress and concentrates, and along permanent liner root to
Weld seam extends to form crackle, weld seam may finally be caused integrally to crack, and seriously affects weldquality and structure safety.
Experiments have shown that using the T-shaped structure part of conventional permanent liner in welding, the wing, web two of the meeting in the root of weld
End angle generates unmelted merging and causes fire check, which is easy under external force, to lead often along the whole cracking of permanent liner
The whole of structure is caused to destroy.
Summary of the invention
A kind of root penetration weldering of permanent liner T junction is provided it is an object of the invention to demand in view of the above technology
Method is connect, for the root structure form of T junction, in conjunction with specific welding method feature, in commonly used permanent liner
On the basis of, improve the structure type of liner.
To achieve the goals above, the present invention adopts the following technical scheme: a kind of root penetration of permanent liner T junction
Welding method, the T junction include web and wing plate, characterized by the following steps:
S1) permanent gasket construction improves: retaining wall on slope is carried out on permanent liner, according to plate thickness and T-shaped structure bevel angle,
Single side V-butt appropriate, groove face width and bevel angle is opened up to be determined according to web and wing plate preset clearance；
S2) permanently liner spot welding is fixed: the open side permanently padded towards the groove direction of T junction, permanent liner with
Web fits closely, and there are gaps with wing plate；
S3 local preheating, prime coat welding process) prime coat pass weld: are carried out to web and wing plate two sides groove root
It is middle to be welded using swing, make the sharp corner permanently padded and wing plate and prime coat welding bead angle, prime coat welding bead and permanent liner
The junction of pad and web is respectively melted certain thickness.
According to the above scheme, the certain thickness value is 0.8~1.2mm.
The beneficial effects of the present invention are: a kind of root penetration welding method of permanent liner T junction is provided, for routine
Permanent liner T shape component can generate unmelted merging at the wing of the root of weld, web both ends angle during backing welding and cause hot tearing
Line, weld seam easily lead to the case where component integrally destroys through timeliness, are permanently padded using the modified form for opening up groove, weld in prime coat
When road welds, group is reserved to gap, weld preheating is taken, swings the methods of welding welding, can efficiently solve in welding process
The incomplete fusion and weld crack defect problem of generation,
Guarantee effective penetration of T shape member welding joints simultaneously, experiments have shown that, this method and modified form mat form can extensively simultaneously
It is efficiently applied to practice of construction production.Wing plate side weld root incomplete fusion and crackle can be effectively eliminated using this method, can avoid
The further destruction of structure.
Detailed description of the invention
Fig. 1 is the fixed schematic diagram of permanent liner spot welding of one embodiment of the invention.
Fig. 2 is the welding fabrication schematic diagram of one embodiment of the invention.
Specific embodiment
Embodiment of the present invention is illustrated now in conjunction with attached drawing, the present invention is not limited to the following examples.
A kind of root penetration welding method of permanent liner T junction, T junction includes web 1 and wing plate 3, feature
It is: includes the following steps:
S1) permanently 2 structures of liner are improved: retaining wall on slope are carried out on permanent liner, according to plate thickness and T-shaped structure groove angle
Degree opens up single side V-butt appropriate, groove face width and bevel angle and is determined according to web and wing plate preset clearance；
S2) permanently liner spot welding is fixed: the open side permanently padded towards the groove direction of T junction, permanent liner with
Web fits closely, and there are gaps with wing plate；
S3) prime coat welding bead 4 welds: carrying out local preheating to web and wing plate two sides groove root, prime coat welded
Using welding is swung in journey, make the sharp corner permanently padded and wing plate and prime coat welding bead angle, prime coat welding bead and permanent
The junction of liner and web is respectively melted 0.8~1.2mm.
Welding process:
1. the modified form that groove has opened up permanently is padded waypoint to be welded on web and wing plate, pad modified form permanently
Open side towards the groove direction of T-shaped structure, it is desirable that modified form is permanently padded and is fitted closely with web, according to specific plate thickness and
Welding method, padding modified form permanently between wing plate, there are certain intervals, to guarantee that root pass penetration is good；
2. after the completion of group weldering, web and wing plate to T-shaped structure part groove two sides carry out local preheating, especially guarantee abdomen
The preheating temperature of plate, wing plate two sides groove root, to guarantee that root base layer welding bead in the good fusion of two sides angle, avoids
A series of destruction problems as caused by incomplete fusion；
3.T shape structural member in prime coat welding process using swing welding, make modified form pad 2 sharp corners, wing plate with
Prime coat welding bead angle, prime coat welding bead and modified form permanently pad and web three parts junction is respectively melted about 1mm, keep away
Exempt from backing run and generate incomplete fusion defect above three, further avoids the cracking phenomena formed in ag(e)ing process.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (2)
1. a kind of root penetration welding method of permanent liner T junction, the T junction includes web and wing plate, feature
It is: includes the following steps:
S1) permanent gasket construction improves: carrying out retaining wall on slope on permanent liner, according to plate thickness and T-shaped structure bevel angle, opens up
Single side V-butt appropriate, groove face width and bevel angle are determined according to web and wing plate preset clearance；
S2) permanently liner spot welding is fixed: the open side permanently padded is towards the groove direction of T junction, permanent liner and web
It fits closely, there are gaps with wing plate；
S3) prime coat pass weld: local preheating is carried out to web and wing plate two sides groove root, is adopted in prime coat welding process
Welded with swinging, make the sharp corner permanently padded and wing plate and prime coat welding bead angle, prime coat welding bead and permanent liner and
The junction of web is respectively melted certain thickness.
2. a kind of root penetration welding method of permanent liner T junction according to claim 1, it is characterised in that described
Certain thickness value is 0.8~1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811409324.5A CN109262156A (en) | 2018-11-23 | 2018-11-23 | A kind of root penetration welding method of permanent liner T junction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811409324.5A CN109262156A (en) | 2018-11-23 | 2018-11-23 | A kind of root penetration welding method of permanent liner T junction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109262156A true CN109262156A (en) | 2019-01-25 |
Family
ID=65190887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811409324.5A Pending CN109262156A (en) | 2018-11-23 | 2018-11-23 | A kind of root penetration welding method of permanent liner T junction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109262156A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181189A (en) * | 2019-06-27 | 2019-08-30 | 广船国际有限公司 | A kind of welding method of CM node groove |
| CN115338601A (en) * | 2022-08-24 | 2022-11-15 | 上海振华重工(集团)股份有限公司 | Preparation method of girder with triangular structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52145350A (en) * | 1976-05-31 | 1977-12-03 | Hitachi Ltd | Complete fillet welding of tee joint having vvshaped groove |
| JPS61219484A (en) * | 1985-03-26 | 1986-09-29 | Mitsubishi Heavy Ind Ltd | Method for one side welding |
| JPH0751849A (en) * | 1993-08-19 | 1995-02-28 | Hitachi Zosen Corp | Welding method |
| JPH09225635A (en) * | 1996-02-22 | 1997-09-02 | Kawasaki Heavy Ind Ltd | Melt-through bead welding method for connection of steelwork |
| JPH10156542A (en) * | 1996-11-26 | 1998-06-16 | Nippon Alum Co Ltd | Single bevel butt welding method for aluminum alloy member |
| CN102896401A (en) * | 2012-10-24 | 2013-01-30 | 北京中丽制机工程技术有限公司 | Welding joint lining plate for chemical fiber spinning box |
-
2018
- 2018-11-23 CN CN201811409324.5A patent/CN109262156A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52145350A (en) * | 1976-05-31 | 1977-12-03 | Hitachi Ltd | Complete fillet welding of tee joint having vvshaped groove |
| JPS61219484A (en) * | 1985-03-26 | 1986-09-29 | Mitsubishi Heavy Ind Ltd | Method for one side welding |
| JPH0751849A (en) * | 1993-08-19 | 1995-02-28 | Hitachi Zosen Corp | Welding method |
| JPH09225635A (en) * | 1996-02-22 | 1997-09-02 | Kawasaki Heavy Ind Ltd | Melt-through bead welding method for connection of steelwork |
| JPH10156542A (en) * | 1996-11-26 | 1998-06-16 | Nippon Alum Co Ltd | Single bevel butt welding method for aluminum alloy member |
| CN102896401A (en) * | 2012-10-24 | 2013-01-30 | 北京中丽制机工程技术有限公司 | Welding joint lining plate for chemical fiber spinning box |
Non-Patent Citations (2)
| Title |
|---|
| 沈璐等: "《图解钢结构施工细部做法100讲》", 31 May 2017, 哈尔滨工业大学出版社 * |
| 王元清等: "基于断裂力学的钢框架梁柱节点抗震性能分析", 《工程力学》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181189A (en) * | 2019-06-27 | 2019-08-30 | 广船国际有限公司 | A kind of welding method of CM node groove |
| CN110181189B (en) * | 2019-06-27 | 2021-04-02 | 广船国际有限公司 | Welding method of CM node groove |
| CN115338601A (en) * | 2022-08-24 | 2022-11-15 | 上海振华重工(集团)股份有限公司 | Preparation method of girder with triangular structure |
| CN115338601B (en) * | 2022-08-24 | 2023-09-26 | 上海振华重工(集团)股份有限公司 | Preparation method of girder with triangular structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190125 |