CN108247228A - A kind of thin-wall stainless steel intelligent and high-efficiency welding method - Google Patents
A kind of thin-wall stainless steel intelligent and high-efficiency welding method Download PDFInfo
- Publication number
- CN108247228A CN108247228A CN201711471359.7A CN201711471359A CN108247228A CN 108247228 A CN108247228 A CN 108247228A CN 201711471359 A CN201711471359 A CN 201711471359A CN 108247228 A CN108247228 A CN 108247228A
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- welding
- arc welding
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- argon tungsten
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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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
A kind of thin-wall stainless steel intelligent and high-efficiency welding method, belongs to machinery manufacturing industry welding field, overcomes prior art defect.This method uses P+T combination process welding equipments, i.e., plasma arc welding (PAW) and argon tungsten-arc welding is mechanically bonded thereto welding method together by automatic control system；During welding, workpiece is motionless, welding gun movement；Welding process can synchronously complete plasma arc welding (PAW) and argon tungsten-arc welding, can also complete step by step；After the method for fractional steps is first disposably penetrated by plasma arc welding (PAW), then filled silk automatically by argon tungsten-arc welding and complete capping.When plate thickness is in 3 8mm, bevel is not needed to, Synchronos method can be used.When plate thickness is more than 8mm, bevel is needed, the method for fractional steps can be used.This method welding quality is high, it can be achieved that single face welding and double face shaping, greatly improves welding efficiency, and saving wlding improves work situation, is widely used in the circumferential weld longitudinal joint of thin plate rustless steel container and the welding of plate stitch.
Description
Technical field
The invention belongs to the welding of machine-building welding field more particularly to thin-wall stainless steel.
Background technology
Stainless steel is due to good corrosion-and high-temp-resistant energy, being widely used in the row such as electric power, petrochemical industry, metallurgy
Industry.By traditional welding procedure, when welding thin-wall stainless steel, generally using hand tungsten argon arc welding, welding electrode arc welding and
Lincoln weld is required for bevel using more than welding method.Since stainless steel is small compared to carbon steel thermal conductivity, line expansion system
Number is big, resistivity is big, when using welding electrode arc welding and technology of automatic submerged arc welding thin-wall stainless steel container, if sweating heat
Input quantity is larger, can generate welding deformation；Bevel and back root cleaning increase production cost.Using hand tungsten argon arc welding
It can realize one side welding with back formation, and its heat input is smaller, but its efficiency is too low.
Invention content
The present invention seeks to overcome prior art defect, a kind of thin-wall stainless steel intelligent and high-efficiency welding method is provided.
A kind of thin-wall stainless steel intelligent and high-efficiency welding method, using P+T combination process welding equipments, i.e., by plasma arc welding (PAW)
Welding method together is mechanically bonded thereto by automatic control system with argon tungsten-arc welding；During welding, workpiece is not
Dynamic, welding gun movement；Welding process can synchronously complete plasma arc welding (PAW) and argon tungsten-arc welding, can also complete step by step；The method of fractional steps
After first disposably being penetrated by plasma arc welding (PAW), then filled silk automatically by argon tungsten-arc welding and complete capping.
By many experiments, conclusion is as follows：
When plate thickness is in 3-8mm, bevel is not needed to, Synchronos method can be used.Using appropriate welding parameter, plasma arc is realized
The backing welding disposably penetrated, and back-welding shape is good, groove is as shown in Figure 1；
When plate thickness is more than 8mm, bevel is needed, the method for fractional steps can be used.Experiment proves：If square groove carries out in 8-12mm
Not penetrating occur in plasma backing welding, the test specimen back side；Plasma weldering is carried out using the small speed of big specification, test specimen can penetrate,
But back-welding shape is poor, overlap occurs, and weld bead height cannot be guaranteed in suitable range.For plate thickness in 10-12mm, bevel can
Realize that plasma backing welding disposably penetrates；It is determined by adjustment parameter when root face is in 6mm, test specimen positive and negative shapes most
It is good, and welding parameter is in most suitable range.Groove is as shown in Figure 2.
It it was verified that can be to thin plate stainless steel circumferential weld longitudinal joint using plasma arc welding (PAW) and argon tungsten-arc welding complex welding method
Plate stitch realizes the welding of high quality, it can be achieved that single face welding and double face shaping, greatly improves welding efficiency, and saving wlding improves labour
Environment.Using the good aperture penetration capacity of plasma-arc, speed of welding is greatly improved；The free electric arc of TIG welderings has well
Covering power, with proper amount of filling Remelting Metals, front forming is beautiful, and the two has complementary advantages, and reaches faster and better effect
Fruit.
Description of the drawings
Fig. 1 does not need to bevel when plate thickness is in 3-8mm；
Fig. 2 needs bevel when plate thickness is more than 8mm；
Fig. 3 test specimens front pattern photo；
Fig. 4 test specimens back side pattern photo.
Specific embodiment
Case：Base material selects the S30408 stainless steels of 10mm thickness, and groove is as shown in Fig. 2, welding wire uses ER308L, specification φ
1.0, the chemical composition and mechanical property of base material and welding wire are as shown in table 1；Using stainless steel high efficiency smart welding method, that is, weld
Plasma arc welding (PAW) with argon tungsten-arc welding by automatic control system is mechanically bonded thereto in the process and is welded together, technique ginseng
Number is as shown in table 2.
1 base material of table and wlding chemical composition and mechanical property
2 welding condition of table
By the use of argon gas as protective gas, two pieces of test specimens, gained test specimen weld seam front and back are welded using standard parameter as shown in table 2
It is molded pattern as shown in Figure 3, Figure 4, the forming of weld seam front and back is beautiful uniformly, does not need to postwelding polishing cleaning.By trying welding
Plate performance detection, result comply fully with requirement.Nearly 10 times of weldering is most importantly saved compared with SMAW per 1000mm weld seams
Material, the labor intensity both mitigated improve production efficiency, and have saved wlding cost.While economic benefit being brought to enterprise,
The labor intensity of worker is reduced, and cleaner welding surroundings are provided.This method is widely used in thin plate rustless steel container
The welding of circumferential weld, longitudinal joint and plate stitch.
Claims (1)
1. a kind of thin-wall stainless steel intelligent and high-efficiency welding method, using P+T combination process welding equipments, i.e., by plasma arc welding (PAW) with
Argon tungsten-arc welding is mechanically bonded thereto welding method together by automatic control system；During welding, workpiece is motionless,
Welding gun moves；Welding process can synchronously complete plasma arc welding (PAW) and argon tungsten-arc welding, can also complete step by step；The method of fractional steps first by
Plasma arc welding (PAW) is disposably after through welding, then filled silk automatically by argon tungsten-arc welding and complete capping；When plate thickness is in 3-8mm, do not need to
Synchronos method can be used in bevel；When plate thickness is more than 8mm, bevel is needed, the method for fractional steps can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471359.7A CN108247228A (en) | 2017-12-29 | 2017-12-29 | A kind of thin-wall stainless steel intelligent and high-efficiency welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471359.7A CN108247228A (en) | 2017-12-29 | 2017-12-29 | A kind of thin-wall stainless steel intelligent and high-efficiency welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108247228A true CN108247228A (en) | 2018-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711471359.7A Pending CN108247228A (en) | 2017-12-29 | 2017-12-29 | A kind of thin-wall stainless steel intelligent and high-efficiency welding method |
Country Status (1)
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| CN (1) | CN108247228A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396621A (en) * | 2018-12-11 | 2019-03-01 | 云南大为化工装备制造有限公司 | A method of utilizing plasma welding soldering low alloy steel sheet butt weld |
| CN110899920A (en) * | 2019-12-11 | 2020-03-24 | 中车长江车辆有限公司 | Girth welding method for low-alloy steel low-temperature pressure container tank body |
| CN112171092A (en) * | 2020-09-11 | 2021-01-05 | 中国核工业第二二建设有限公司 | Efficient tailor-welding equipment and method for nuclear power stainless pool steel clad plate |
| CN114367724A (en) * | 2022-02-24 | 2022-04-19 | 成都熊谷加世电器有限公司 | Polishing-free welding method for all-position multilayer multi-pass welding of pipeline |
| CN114850638A (en) * | 2022-04-07 | 2022-08-05 | 鲁西工业装备有限公司 | NO8020 nickel alloy welding process |
Citations (3)
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| CN104801839A (en) * | 2015-04-01 | 2015-07-29 | 中石化工建设有限公司 | Welding technology of austenitic stainless steel and chrome molybdenum heat resistant steel |
| CN104858557A (en) * | 2015-06-01 | 2015-08-26 | 山东大学 | Method for combined welding of austenitic stainless steel moderate thickness plate |
| CN105798438A (en) * | 2016-05-27 | 2016-07-27 | 宝鸡石油钢管有限责任公司 | Butt welding connecting method of laminar composite plate coated with 316L stainless steel on double surfaces |
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2017
- 2017-12-29 CN CN201711471359.7A patent/CN108247228A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801839A (en) * | 2015-04-01 | 2015-07-29 | 中石化工建设有限公司 | Welding technology of austenitic stainless steel and chrome molybdenum heat resistant steel |
| CN104858557A (en) * | 2015-06-01 | 2015-08-26 | 山东大学 | Method for combined welding of austenitic stainless steel moderate thickness plate |
| CN105798438A (en) * | 2016-05-27 | 2016-07-27 | 宝鸡石油钢管有限责任公司 | Butt welding connecting method of laminar composite plate coated with 316L stainless steel on double surfaces |
Non-Patent Citations (1)
| Title |
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| 林耀华等: "等离子弧与钨极氩弧复合焊(P+T)技术应用研究", 《金属加工(冷加工)》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396621A (en) * | 2018-12-11 | 2019-03-01 | 云南大为化工装备制造有限公司 | A method of utilizing plasma welding soldering low alloy steel sheet butt weld |
| CN110899920A (en) * | 2019-12-11 | 2020-03-24 | 中车长江车辆有限公司 | Girth welding method for low-alloy steel low-temperature pressure container tank body |
| CN112171092A (en) * | 2020-09-11 | 2021-01-05 | 中国核工业第二二建设有限公司 | Efficient tailor-welding equipment and method for nuclear power stainless pool steel clad plate |
| CN114367724A (en) * | 2022-02-24 | 2022-04-19 | 成都熊谷加世电器有限公司 | Polishing-free welding method for all-position multilayer multi-pass welding of pipeline |
| CN114850638A (en) * | 2022-04-07 | 2022-08-05 | 鲁西工业装备有限公司 | NO8020 nickel alloy welding process |
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Application publication date: 20180706 |
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