CN104985360A - Welding method for long welding joint - Google Patents
Welding method for long welding joint Download PDFInfo
- Publication number
- CN104985360A CN104985360A CN201510370660.3A CN201510370660A CN104985360A CN 104985360 A CN104985360 A CN 104985360A CN 201510370660 A CN201510370660 A CN 201510370660A CN 104985360 A CN104985360 A CN 104985360A
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- CN
- China
- Prior art keywords
- welding
- long
- weld seam
- welded
- joint
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a welding method for a long welding joint. The welding method includes the following steps that firstly, dividing grooves perpendicular to the long welding joint are formed in each part to be welded; secondly, the middle and the two ends of the long welding joint are welded; and thirdly, welding joints on the two sides of the long welding joint are welded simultaneously or alternately to reach the two ends of the long welding joint. The length of the multiple dividing grooves is larger than or equal to the width of welding heat effect areas, and the number of the dividing grooves in each part to be welded is larger than 4. According to the welding method for the long welding joint, the dividing grooves absorb welding deformation so that the deformation amount of non-heat effect areas of the parts to be welded can be reduced to the minimum; the effect of controlling the welding deformation of the long welding joint is obvious. The method is simple and easy to implement, and only the dividing grooves slightly larger than the heat effect areas need to be formed.
Description
Technical field
The present invention relates to welding technique field, is more particularly a kind of welding method of long weld seam.
Background technology
In existing solder technology, in process particularly to long weld seam (length is more than 500mm), welding deformation is very large for the impact of weldment, and conventional control welding deformation method has: point means of spot welds, be symmetrically welded, rigidly fix, heat treatment, mechanical checkout etc.
But the enforcement of these methods all has great difficulty, and the expense that will drop into is larger.
Summary of the invention
Technical scheme of the present invention is achieved in that a kind of welding method of long weld seam, comprises the steps:
1. slot segmentation perpendicular to long weld seam is set respectively in each to-be-welded pieces;
2. to centre and the two end portions welding of long weld seam;
3. simultaneously or two side welds of zigzag weld spreading weld seam until the two ends of long weld seam;
Wherein, the length of described many slot segmentations is more than or equal to the width in welding effect district, and in described each to-be-welded pieces, the quantity of slot segmentation is greater than 4.
Preferably, the described position of many slot segmentations in described to-be-welded pieces is identical.
Preferably, full weld is welded as to the weld seam between slot segmentation.
Preferably, after described long weld seam has welded, more slot segmentations are welded.
Beneficial effect of the present invention: slot segmentation of the present invention absorbs welding deformation, makes the deflection in the non-thermal effect district of weldment be reduced to minimum; The deformation effect that this method controls the welding of long weld seam is obvious; This method is simple, and only the slot segmentation need driveed slightly larger than region of thermal effect just can.
Detailed description of the invention
Embodiment provided by the invention is described in further detail:
A welding method for long weld seam, comprises the steps:
1. slot segmentation perpendicular to long weld seam is set respectively in each to-be-welded pieces;
2. to centre and the two end portions welding of long weld seam;
3. simultaneously or two side welds of zigzag weld spreading weld seam until the two ends of long weld seam;
Wherein, the length of described many slot segmentations is more than or equal to the width in welding effect district, and in described each to-be-welded pieces, the quantity of slot segmentation is greater than 4.
Preferably, the described position of many slot segmentations in described to-be-welded pieces is identical.
Preferably, full weld is welded as to the weld seam between slot segmentation.
Preferably, after described long weld seam has welded, more slot segmentations are welded.
Beneficial effect of the present invention: slot segmentation of the present invention absorbs welding deformation, makes the deflection in the non-thermal effect district of weldment be reduced to minimum; The deformation effect that this method controls the welding of long weld seam is obvious; This method is simple, and only the slot segmentation need driveed slightly larger than region of thermal effect just can.
In this description, the present invention is described with reference to its specific embodiment.But, still can make various amendment and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, description is regarded in an illustrative, rather than a restrictive.
Claims (4)
1. a welding method for long weld seam, is characterized in that, comprises the steps:
1. slot segmentation perpendicular to long weld seam is set respectively in each to-be-welded pieces;
2. to centre and the two end portions welding of long weld seam;
3. simultaneously or two side welds of zigzag weld spreading weld seam until the two ends of long weld seam;
Wherein, the length of described many slot segmentations is more than or equal to the width in welding effect district, and in described each to-be-welded pieces, the quantity of slot segmentation is greater than 4.
2. according to the welding method of the long weld seam described in claim 1, it is characterized in that: the described position of many slot segmentations in described to-be-welded pieces is identical.
3. according to the welding method of the long weld seam described in claim 2, it is characterized in that: full weld is welded as to the weld seam between slot segmentation.
4. the welding method of the long weld seam according to any one of claim 1 to 3, is characterized in that: after described long weld seam has welded, then weld many slot segmentations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370660.3A CN104985360A (en) | 2015-06-30 | 2015-06-30 | Welding method for long welding joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370660.3A CN104985360A (en) | 2015-06-30 | 2015-06-30 | Welding method for long welding joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104985360A true CN104985360A (en) | 2015-10-21 |
Family
ID=54297315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510370660.3A Pending CN104985360A (en) | 2015-06-30 | 2015-06-30 | Welding method for long welding joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104985360A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312269A (en) * | 2016-10-13 | 2017-01-11 | 广西大学 | Welding method for medium steel plates for boilers |
| CN106346106A (en) * | 2016-10-13 | 2017-01-25 | 广西大学 | Method for welding thick steel plate for bridge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693328A (en) * | 2009-10-26 | 2010-04-14 | 浙江大地钢结构有限公司 | Stainless steel sheet welding method capable of controlling deformation |
| CN102233500A (en) * | 2010-04-22 | 2011-11-09 | 上海华谊集团装备工程有限公司 | Process for controlling deformation in split welding and heat treatment of large pipe plate |
| CN102284560A (en) * | 2011-07-26 | 2011-12-21 | 中国北车集团大连机车研究所有限公司 | Process for leveling aluminum alloy brazing plate |
| JP2011255393A (en) * | 2010-06-07 | 2011-12-22 | Nippon Steel Engineering Co Ltd | Welding method and welding equipment |
| CN102672360A (en) * | 2012-05-16 | 2012-09-19 | 上海人民电力设备股份有限公司 | Welding method for long weld joint |
-
2015
- 2015-06-30 CN CN201510370660.3A patent/CN104985360A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693328A (en) * | 2009-10-26 | 2010-04-14 | 浙江大地钢结构有限公司 | Stainless steel sheet welding method capable of controlling deformation |
| CN102233500A (en) * | 2010-04-22 | 2011-11-09 | 上海华谊集团装备工程有限公司 | Process for controlling deformation in split welding and heat treatment of large pipe plate |
| JP2011255393A (en) * | 2010-06-07 | 2011-12-22 | Nippon Steel Engineering Co Ltd | Welding method and welding equipment |
| CN102284560A (en) * | 2011-07-26 | 2011-12-21 | 中国北车集团大连机车研究所有限公司 | Process for leveling aluminum alloy brazing plate |
| CN102672360A (en) * | 2012-05-16 | 2012-09-19 | 上海人民电力设备股份有限公司 | Welding method for long weld joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312269A (en) * | 2016-10-13 | 2017-01-11 | 广西大学 | Welding method for medium steel plates for boilers |
| CN106346106A (en) * | 2016-10-13 | 2017-01-25 | 广西大学 | Method for welding thick steel plate for bridge |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
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| RJ01 | Rejection of invention patent application after publication |