CN112975069A - Automatic welding process for controlling surplus height of welding line in pipeline - Google Patents
Automatic welding process for controlling surplus height of welding line in pipeline Download PDFInfo
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- CN112975069A CN112975069A CN201911299554.5A CN201911299554A CN112975069A CN 112975069 A CN112975069 A CN 112975069A CN 201911299554 A CN201911299554 A CN 201911299554A CN 112975069 A CN112975069 A CN 112975069A
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- welding
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- pipeline
- groove
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K33/004—Filling of continuous seams
-
- 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
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
- B23K9/0282—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Abstract
The invention belongs to a welding process, and particularly relates to an automatic welding process for controlling the surplus height of a welding line in a pipeline. An automatic welding process for controlling the surplus height of a welding seam in a pipeline comprises the following steps: 1.1, adopting a pipeline welding method; 1.2, selecting a matched welding material according to a welding method; 1.3 beveling the part, and beveling the part; 1.4, assembling the components, and assembling the components according to the requirement; and 1.5, welding according to needs. The invention has the following effects: the welding process for controlling the weld reinforcement inside the pipeline can effectively control the welding deformation and necking of the pipeline and ensure that the internal reinforcement meets the design requirements, and finally ensures the welding quality of the pipeline.
Description
Technical Field
The invention belongs to a welding process, and particularly relates to an automatic welding process for controlling the surplus height of a welding line in a pipeline.
Background
The requirement that austenitic stainless steel pipelines of a plurality of systems of a high-temperature gas cooled reactor nuclear power plant need to control the extra height of internal welding seams and need to carry out a ball passing test. If the conventional austenitic stainless steel welding process is adopted, certain welding deformation and necking are generated after welding, the internal residual height of a welding line hardly meets the design requirement, and the smooth passing of a ball passing test is influenced.
Disclosure of Invention
The invention aims to provide an automatic welding process for controlling the weld seam surplus height in a pipeline in the construction of a high-temperature gas cooled reactor nuclear power station, which is used for solving the problems in the background technology.
The technical scheme of the invention is as follows: an automatic welding process for controlling the surplus height of a welding seam in a pipeline comprises the following steps:
1.1 welding method
Adopting a pipeline welding method;
1.2 welding materials
Selecting matched welding materials according to a welding method;
1.3 part beveling
Performing groove machining on the part;
1.4 parts pairing
Assembling the components according to the requirement;
1.5 welding
Welding is performed as required.
The automatic welding process for controlling the weld seam surplus height in the pipeline is characterized in that the step 1.1 adopts automatic argon tungsten-arc welding,
the automatic welding process for controlling the weld seam surplus height in the pipeline comprises the step 1.2, wherein the welding material in the step is ER321, and the specification of the welding wire is phi 0.8.
The automatic welding process for controlling the weld reinforcement inside the pipeline comprises the following steps of 1.3: the V-shaped groove is adopted, the angle of the groove is 70-90 degrees, the truncated edge is 0-1mm, the inner side of the end part is chamfered, namely the reverse groove, the thickness direction is less than or equal to 1mm, and the ratio of the length direction to the thickness direction of the inner side chamfer of the end part is more than or equal to 5.
The automatic welding process for controlling the weld surplus height inside the pipeline comprises the following steps of (1.4) assembling components,
1) misalignment amount: the misalignment amount of butt welding seams is less than 0.2 mm;
2) groove clearance: the gap of the butt weld groove is 0-1 mm;
3) and uniformly spot-welding 3-4 welding spots by using an ER321 welding wire in the circumferential direction or performing final assembly and fixation by using a special tool.
The automatic welding process for controlling the surplus height of the welding seam in the pipeline comprises the following steps of firstly welding a bottom layer; priming a bottom layer: and (3) performing bottom sealing layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 7-10V, the welding current is 60-80A, the welding speed is 4-7cm/min, the yaw retention time is 0.3-0.6s, the yaw amplitude is 3-7mm, and the flow of argon protective gas on the front surface is 10-20L/min.
According to the automatic welding process for controlling the surplus height of the welding seam inside the pipeline, after the priming layer is welded, the filling layer is welded: performing filling layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 8-11V, the welding current is 70-90A, the welding speed is 5-8cm/min, the yaw retention time is 0.3-0.6s, the yaw amplitude is 3-7mm, and the flow of argon protective gas on the front surface is 10-20L/min;
according to the automatic welding process for controlling the surplus height of the welding line in the pipeline, the cover layer is welded after the filling layer is welded: and (3) performing cover surface layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 8-11V, the welding current is 70-90A, the welding speed is 6-9cm/min, the yaw retention time is 0.3-0.6s, the yaw amplitude is 3-7mm, and the flow of argon protective gas on the front surface is 10-20L/min.
The automatic welding process for controlling the surplus height of the welding line in the pipeline comprises the following steps of controlling the interlayer temperature to be less than or equal to 150 ℃ in the welding process.
The invention has the following effects: the welding process for controlling the weld reinforcement inside the pipeline can effectively control the welding deformation and necking of the pipeline and ensure that the internal reinforcement meets the design requirements, and finally ensures the welding quality of the pipeline.
Detailed Description
The technical solution of the present invention is described in detail and completely with reference to the following examples, which are only for explaining the present invention and do not limit the content thereof.
The first embodiment is as follows: the material is austenitic stainless steel 06Cr18Ni11Ti, and the specification is phi 74 multiplied by 6mm pipeline butt welding seam.
1.1 welding method
1) The welding method comprises the following steps: automatic argon tungsten-arc welding is adopted.
1.2 welding materials
1) The welding material adopted by the automatic argon tungsten-arc welding is ER321, and the specification of a welding wire is phi 0.8.
1.3 part beveling
1) The processing method comprises the following steps: groove processing is carried out by adopting a mechanical method;
2) groove form: a V-shaped groove is adopted, the groove angle is 90 degrees, the truncated edge is 0.4mm, the inner side of the end part is chamfered (reverse groove) and the thickness direction is 0.8mm, and the length direction of the inner side of the end part is 5 mm.
1.4 parts pairing
1) Misalignment amount: the misalignment amount of butt welding seams is less than 0.2 mm;
2) groove clearance: the butt weld groove gap is 0.6 mm;
3) and finally, assembling and fixing in the circumferential direction by adopting a special tool.
1.5 welding
1) Priming a bottom layer: adopting automatic argon tungsten-arc welding to weld the bottom sealing layer, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 8-10V, the welding current is 70-80A, the welding speed is 4-6cm/min, the yaw retention time is 0.4s, the yaw amplitude is 3-5mm, and the flow of argon protective gas on the front surface is 12L/min;
2) filling layer: performing filling layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 9-11V, the welding current is 80-90A, the welding speed is 5-7cm/min, the yaw retention time is 0.4-0.6s, the yaw amplitude is 3-7mm, and the flow of argon protective gas on the front surface is 12-15L/min;
3) covering the surface layer: and (3) performing cover surface layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 9-11V, the welding current is 80-90A, the welding speed is 6-8cm/min, the yaw retention time is 0.4s, the yaw amplitude is 5-7mm, and the flow of argon protective gas on the front surface is 15L/min.
4) Controlling the interlayer temperature: the interlayer temperature is less than or equal to 150 ℃.
Example two: the material is austenitic stainless steel 06Cr18Ni11Ti, and the specification is phi 57 multiplied by 5mm pipeline butt welding seam.
1.1 welding method
1) The welding method comprises the following steps: automatic argon tungsten-arc welding is adopted.
1.2 welding materials
1) The welding material adopted by the automatic argon tungsten-arc welding is ER321, and the specification of a welding wire is phi 0.8.
1.3 part beveling
1) The processing method comprises the following steps: groove processing is carried out by adopting a mechanical method;
2) groove form: a V-shaped groove is adopted, the groove angle is 75 degrees, the truncated edge is 0.2mm, the inner side of the end part is chamfered (reverse groove) and the thickness direction is 0.5mm, and the length direction of the inner side of the end part is 3 mm. .
1.4 parts pairing
1) Misalignment amount: the misalignment amount of butt welding seams is less than 0.2 mm;
2) groove clearance: the butt weld groove gap is 0.5 mm;
3) and uniformly spot-welding 4 welding spots by using an ER321 welding wire in the circumferential direction to perform final assembly and fixation.
1.5 welding
1) Priming a bottom layer: adopting automatic argon tungsten-arc welding to weld the bottom sealing layer, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 7-10V, the welding current is 60-80A, the welding speed is 5-7cm/min, the yaw retention time is 0.3s, the yaw amplitude is 3-4mm, and the flow of argon protective gas on the front surface is 10L/min;
2) filling layer: performing filling layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 8-10V, the welding current is 70-80A, the welding speed is 6-8cm/min, the yaw retention time is 0.4-0.6s, the yaw amplitude is 3-5mm, and the flow of argon protective gas on the front surface is 10-15L/min;
3) covering the surface layer: and (3) performing cover surface layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 8-10V, the welding current is 70-80A, the welding speed is 7-9cm/min, the yaw retention time is 0.4s, the yaw amplitude is 5-6mm, and the flow of argon protective gas on the front surface is 14L/min.
Example post-weld ball through test results:
the welding process for controlling the weld reinforcement inside the pipeline can effectively control the welding deformation and necking of the pipeline and ensure that the internal reinforcement meets the design requirements, and finally ensures the welding quality of the pipeline.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the technical solutions of the present invention, so that all modifications, substitutions and various changes made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solutions of the present invention.
Claims (9)
1. An automatic welding process for controlling the surplus height of a welding seam in a pipeline is characterized by comprising the following steps:
1.1 welding method
Adopting a pipeline welding method;
1.2 welding materials
Selecting matched welding materials according to a welding method;
1.3 part beveling
Performing groove machining on the part;
1.4 parts pairing
Assembling the components according to the requirement;
1.5 welding
Welding is performed as required.
2. The automatic welding process for controlling the weld reinforcement inside the pipeline according to claim 1, characterized in that: in the step 1.1, automatic argon tungsten-arc welding is adopted.
3. The automatic welding process for controlling the weld reinforcement inside the pipeline according to claim 2, wherein: in the step 1.2, the welding material is ER321, and the specification of the welding wire is phi 0.8.
4. The automatic welding process for controlling the weld reinforcement inside the pipeline according to claim 3, wherein: the groove form of the step 1.3 is as follows: the V-shaped groove is adopted, the angle of the groove is 70-90 degrees, the truncated edge is 0-1mm, the inner side of the end part is chamfered, namely the reverse groove, the thickness direction is less than or equal to 1mm, and the ratio of the length direction to the thickness direction of the inner side chamfer of the end part is more than or equal to 5.
5. The automatic welding process for controlling the weld reinforcement inside the pipeline according to claim 4, wherein: the 1.4 part pair includes the following,
1) misalignment amount: the misalignment amount of butt welding seams is less than 0.2 mm;
2) groove clearance: the gap of the butt weld groove is 0-1 mm;
3) and uniformly spot-welding 3-4 welding spots by using an ER321 welding wire in the circumferential direction or performing final assembly and fixation by using a special tool.
6. The automatic welding process for controlling the weld reinforcement inside the pipeline according to claim 5, wherein: the 1.5 welding comprises the following steps of firstly, welding a bottom layer; priming a bottom layer: and (3) performing bottom sealing layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 7-10V, the welding current is 60-80A, the welding speed is 4-7cm/min, the yaw retention time is 0.3-0.6s, the yaw amplitude is 3-7mm, and the flow of argon protective gas on the front surface is 10-20L/min.
7. The automatic welding process for controlling the weld reinforcement inside the pipeline according to claim 6, wherein: and (3) welding a filling layer after the welding of the bottom layer is finished: and (2) performing filling layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 8-11V, the welding current is 70-90A, the welding speed is 5-8cm/min, the yaw retention time is 0.3-0.6s, the yaw amplitude is 3-7mm, and the flow of argon protective gas on the front surface is 10-20L/min.
8. The automatic welding process for controlling the weld reinforcement inside the pipeline according to claim 7, wherein: and (3) welding a cover layer after the filling layer is welded: and (3) performing cover surface layer welding by adopting automatic argon tungsten-arc welding, wherein the welding material is ER321, the specification of a welding wire is phi 0.8, the welding voltage is 8-11V, the welding current is 70-90A, the welding speed is 6-9cm/min, the yaw retention time is 0.3-0.6s, the yaw amplitude is 3-7mm, and the flow of argon protective gas on the front surface is 10-20L/min.
9. The automatic welding process for controlling the weld reinforcement inside the pipeline according to claim 8, wherein: the interlayer temperature is controlled to be less than or equal to 150 ℃ in the welding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911299554.5A CN112975069A (en) | 2019-12-17 | 2019-12-17 | Automatic welding process for controlling surplus height of welding line in pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911299554.5A CN112975069A (en) | 2019-12-17 | 2019-12-17 | Automatic welding process for controlling surplus height of welding line in pipeline |
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| CN112975069A true CN112975069A (en) | 2021-06-18 |
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| CN201911299554.5A Pending CN112975069A (en) | 2019-12-17 | 2019-12-17 | Automatic welding process for controlling surplus height of welding line in pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113351963A (en) * | 2021-06-28 | 2021-09-07 | 中国电建集团山东电力建设第一工程有限公司 | Reverse backing welding method for large-diameter stainless steel fused salt pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006226259A (en) * | 2005-02-21 | 2006-08-31 | Daido Steel Co Ltd | Connecting structure of exhaust manifold |
| CN101850454A (en) * | 2009-03-31 | 2010-10-06 | 中国石油天然气管道局 | Welding process of heavy-calibre long-distance steel pipeline |
| CN102581431A (en) * | 2012-03-13 | 2012-07-18 | 中国石油天然气集团公司 | All-position welding method for single-arc double-wire pipeline |
| CN102837115A (en) * | 2012-09-27 | 2012-12-26 | 中国化学工程第三建设有限公司 | Seamless welding method for aluminum and aluminum alloy or pipeline |
| CN108098110A (en) * | 2016-11-25 | 2018-06-01 | 中国石油天然气集团公司 | A kind of welding method of hillside fields pipeline |
| CN109202227A (en) * | 2018-10-09 | 2019-01-15 | 中国电建集团山东电力建设第工程有限公司 | A kind of effective operating procedure for inhibiting almag TIG weld defect |
-
2019
- 2019-12-17 CN CN201911299554.5A patent/CN112975069A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006226259A (en) * | 2005-02-21 | 2006-08-31 | Daido Steel Co Ltd | Connecting structure of exhaust manifold |
| CN101850454A (en) * | 2009-03-31 | 2010-10-06 | 中国石油天然气管道局 | Welding process of heavy-calibre long-distance steel pipeline |
| CN102581431A (en) * | 2012-03-13 | 2012-07-18 | 中国石油天然气集团公司 | All-position welding method for single-arc double-wire pipeline |
| CN102837115A (en) * | 2012-09-27 | 2012-12-26 | 中国化学工程第三建设有限公司 | Seamless welding method for aluminum and aluminum alloy or pipeline |
| CN108098110A (en) * | 2016-11-25 | 2018-06-01 | 中国石油天然气集团公司 | A kind of welding method of hillside fields pipeline |
| CN109202227A (en) * | 2018-10-09 | 2019-01-15 | 中国电建集团山东电力建设第工程有限公司 | A kind of effective operating procedure for inhibiting almag TIG weld defect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113351963A (en) * | 2021-06-28 | 2021-09-07 | 中国电建集团山东电力建设第一工程有限公司 | Reverse backing welding method for large-diameter stainless steel fused salt pipeline |
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