CN110977120A - Tool design method for preventing argon arc welding from causing oxidation of back surface of test plate - Google Patents
Tool design method for preventing argon arc welding from causing oxidation of back surface of test plate Download PDFInfo
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- CN110977120A CN110977120A CN201911359867.5A CN201911359867A CN110977120A CN 110977120 A CN110977120 A CN 110977120A CN 201911359867 A CN201911359867 A CN 201911359867A CN 110977120 A CN110977120 A CN 110977120A
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- steel pipe
- steel
- test plate
- argon arc
- arc welding
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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
- B23K9/32—Accessories
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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
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- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a tool design method for preventing the back surface of a test plate from being oxidized due to argon arc welding, which comprises the following steps: 1) selecting a steel pipe, a hose and a steel plate required by tool design; 2) sealing two ends of the steel pipe to form a cylindrical structure with two sealed ends and a hollow middle part, then respectively forming a small hole with the same diameter at the two ends of the steel pipe, and placing a hose capable of realizing the circulation of protective gas in the small hole; 3) transversely placing the steel tube, and cutting the steel tube into a steel tube groove at the position 3/4 of the cross section of the steel tube so that the back of a test board used in process evaluation can be directly contacted with protective gas; 4) respectively welding a steel plate with the same size on the cutting edges at the two sides of the steel pipe; 5) placing a test plate used in process evaluation on the tool in the step 4), enabling the back of the welding line to be in direct contact with the groove of the steel pipe, and then inputting gas to the hose. The invention can prevent the back of the test board for evaluating the welding process from being oxidized and generating defects in the argon arc welding process.
Description
Technical Field
The invention relates to the technical field of welding production, in particular to a tool design method for preventing the back surface of a test plate from being oxidized due to argon arc welding.
Background
Argon tungsten-arc welding is a high-quality welding method and is widely adopted in the industrial industry. In particular, the repair of chemically active metals, or thin-walled castings and small defects, is difficult with other arc welding, and high quality welds are readily obtained with argon arc welding. Therefore, it is often necessary to evaluate the welding process with argon arc welding to verify the suitability of the welding process. The conventional argon arc welding process evaluation often generates defects of air hole cracks and the like caused by serious oxidation of the back surface, directly influences the progress and the qualification rate of the welding process evaluation, increases the cost of the process evaluation, and further influences the welding repair period and the delivery period of products.
Disclosure of Invention
The invention provides a tool design method for preventing the back surface of a test plate from being oxidized due to argon arc welding, which can effectively solve the technical problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a design method of a tool for preventing the back of a test plate from being oxidized due to argon arc welding comprises the following steps:
1) selecting a steel pipe, a hose and a steel plate required by tool design;
2) sealing two ends of the steel pipe to form a cylindrical structure with two sealed ends and a hollow middle part, then respectively forming a small hole with the same diameter at the two ends of the steel pipe, and placing a hose capable of realizing the circulation of protective gas in the small hole;
3) transversely placing the steel tube, and cutting the steel tube into a steel tube groove at the position 3/4 of the cross section of the steel tube so that the back of a test board used in process evaluation can be directly contacted with protective gas;
4) welding steel plates with the same size on the cutting edges on the two sides of the steel pipe respectively so as to fix the steel pipe by the steel plates, wherein the height of the edge of the groove of the steel pipe is the same as that of the steel plates on the two sides and the edge of the groove of the steel pipe is positioned on the same plane, and the assembly of the tool to be used is completed;
5) and (3) placing a test plate used in process evaluation on the tool in the step 4), enabling the back of the welding line to be in direct contact with the groove of the steel pipe, and inputting gas to the hose, so that gas protection can be realized on the back of the test plate and the back of the test plate is prevented from being oxidized due to argon arc welding.
Preferably, in step 3), a steel tube groove is cut at the position of the cross section 3/4 of the steel tube by cutting, so that the back of the test panel used in the process evaluation can directly contact with the protective gas.
Preferably, the cross section of the steel pipe groove is of a rectangular structure.
Preferably, in step 2), the central axes of the small holes respectively formed at the two ends of the steel pipe are in the same straight line.
Preferably, in step 2), the hose located in the small hole is in interference fit with the small hole.
Compared with the prior art, the invention has the beneficial effects that:
the tool designed by the invention carries out gas protection on the back surface of the test plate for welding process evaluation, so that gas for back surface protection is saved, the defect of air hole cracks caused by serious oxidation of the back surface of the welding test plate during welding process evaluation is effectively prevented, repair or scrap of the welding test plate caused by back surface oxidation is greatly reduced, the welding process evaluation qualification rate is improved, the welding process evaluation test period is shortened, and the welding process can be applied to workpiece welding repair at the fastest speed.
Drawings
FIG. 1 is a schematic structural diagram of a tooling designed in the embodiment of the present invention;
in the figure, 1-steel pipe, 2-hose, 3-steel pipe groove, 4-steel plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, a method for designing a tool for preventing the back surface of a test panel from being oxidized due to argon arc welding comprises the following steps:
1) selecting a steel pipe 1, a hose 2 and a steel plate 4 required by tool design;
2) sealing two ends of a steel pipe 1 to form a cylindrical structure with two sealed ends and a hollow middle, then respectively forming a small hole with the same diameter at two ends of the steel pipe 1, and placing a hose 2 capable of realizing the circulation of protective gas in the small hole;
3) the steel tube 1 is transversely placed and cut into a steel tube groove 3 at the position of the cross section 3/4 of the steel tube 1, so that the back of a test board used in process assessment can be directly contacted with protective gas;
4) welding a steel plate 4 with the same size on the cutting edges on the two sides of the steel pipe 1 respectively, so that the steel pipe 1 is fixed by the steel plate 4, the edge of the steel pipe groove 3 is the same in height as the steel plates 4 on the two sides and is positioned on the same plane, and the assembly of the tool to be used is completed;
5) and (3) placing a test plate used in process evaluation on the tool in the step (4), enabling the back of the welding line to be in direct contact with the groove (3) of the steel pipe, and inputting gas to the hose (2), so that gas protection can be realized on the back of the test plate and the back of the test plate is prevented from being oxidized due to argon arc welding.
Example two:
as shown in fig. 1, a method for designing a tool for preventing the back surface of a test panel from being oxidized due to argon arc welding comprises the following steps:
1) selecting a steel pipe 1, a hose 2 and a steel plate 4 required by tool design;
2) sealing two ends of a steel pipe 1 to form a cylindrical structure with two sealed ends and a hollow middle, then respectively forming a small hole with the same diameter at two ends of the steel pipe 1, and placing a hose 2 capable of realizing the circulation of protective gas in the small hole;
3) transversely placing the steel tube 1, and cutting a steel tube groove 3 at the position of the cross section 3/4 of the steel tube 1 by cutting so that the back of a test plate used in process assessment can be directly contacted with protective gas;
4) welding a steel plate 4 with the same size on the cutting edges on the two sides of the steel pipe 1 respectively, so that the steel pipe 1 is fixed by the steel plate 4, the edge of the steel pipe groove 3 is the same in height as the steel plates 4 on the two sides and is positioned on the same plane, and the assembly of the tool to be used is completed;
5) and (3) placing a test plate used in process evaluation on the tool in the step (4), enabling the back of the welding line to be in direct contact with the groove (3) of the steel pipe, and inputting gas to the hose (2), so that gas protection can be realized on the back of the test plate and the back of the test plate is prevented from being oxidized due to argon arc welding.
Example three:
as shown in fig. 1, a method for designing a tool for preventing the back surface of a test panel from being oxidized due to argon arc welding comprises the following steps:
1) selecting a steel pipe 1, a hose 2 and a steel plate 4 required by tool design;
2) sealing two ends of a steel pipe 1 to form a cylindrical structure with two sealed ends and a hollow middle, then respectively forming a small hole with the same diameter at two ends of the steel pipe 1, and placing a hose 2 capable of realizing the circulation of protective gas in the small hole;
3) transversely placing a steel pipe 1, and cutting a steel pipe groove 3 at the position 3/4 of the cross section of the steel pipe 1 by cutting, wherein the cross section of the steel pipe groove 3 is of a rectangular structure, so that the back of a test board used in process evaluation can be directly contacted with protective gas;
4) welding a steel plate 4 with the same size on the cutting edges on the two sides of the steel pipe 1 respectively, so that the steel pipe 1 is fixed by the steel plate 4, the edge of the steel pipe groove 3 is the same in height as the steel plates 4 on the two sides and is positioned on the same plane, and the assembly of the tool to be used is completed;
5) and (3) placing a test plate used in process evaluation on the tool in the step (4), enabling the back of the welding line to be in direct contact with the groove (3) of the steel pipe, and inputting gas to the hose (2), so that gas protection can be realized on the back of the test plate and the back of the test plate is prevented from being oxidized due to argon arc welding.
Example four:
as shown in fig. 1, a method for designing a tool for preventing the back surface of a test panel from being oxidized due to argon arc welding comprises the following steps:
1) selecting a steel pipe 1, a hose 2 and a steel plate 4 required by tool design;
2) sealing two ends of a steel pipe 1 to form a cylindrical structure with two sealed ends and a hollow middle, then respectively forming a small hole with the same diameter at two ends of the steel pipe 1, and placing a hose 2 capable of realizing the circulation of protective gas in the small hole;
the central axes of the small holes respectively formed in the two ends of the steel pipe 1 are positioned on the same straight line, and the hose 2 positioned in the small holes is in interference fit with the small holes;
3) transversely placing a steel pipe 1, and cutting a steel pipe groove 3 at the position 3/4 of the cross section of the steel pipe 1 by cutting, wherein the cross section of the steel pipe groove is of a rectangular structure, so that the back of a test board used in process evaluation can be directly contacted with protective gas;
4) welding a steel plate 4 with the same size on the cutting edges on the two sides of the steel pipe 1 respectively, so that the steel pipe 1 is fixed by the steel plate 4, the edge of the steel pipe groove 3 is the same in height as the steel plates 4 on the two sides and is positioned on the same plane, and the assembly of the tool to be used is completed;
5) and (3) placing a test plate used in process evaluation on the tool in the step (4), enabling the back of the welding line to be in direct contact with the groove (3) of the steel pipe, and inputting gas to the hose (2), so that gas protection can be realized on the back of the test plate and the back of the test plate is prevented from being oxidized due to argon arc welding.
The tool designed by the invention carries out gas protection on the back surface of the test plate for welding process evaluation, so that gas for back surface protection is saved, the defect of air hole cracks caused by serious oxidation of the back surface of the welding test plate during welding process evaluation is effectively prevented, repair or scrap of the welding test plate caused by back surface oxidation is greatly reduced, the welding process evaluation qualification rate is improved, the welding process evaluation test period is shortened, and the welding process can be applied to workpiece welding repair at the fastest speed.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (5)
1. The tool design method for preventing the back surface of a test plate from being oxidized due to argon arc welding is characterized by comprising the following steps of:
1) selecting a steel pipe, a hose and a steel plate required by tool design;
2) sealing two ends of the steel pipe to form a cylindrical structure with two sealed ends and a hollow middle part, then respectively forming a small hole with the same diameter at the two ends of the steel pipe, and placing a hose capable of realizing the circulation of protective gas in the small hole;
3) transversely placing the steel tube, and cutting the steel tube into a steel tube groove at the position 3/4 of the cross section of the steel tube so that the back of a test board used in process evaluation can be directly contacted with protective gas;
4) welding steel plates with the same size on the cutting edges on the two sides of the steel pipe respectively so as to fix the steel pipe by the steel plates, wherein the height of the edge of the groove of the steel pipe is the same as that of the steel plates on the two sides and the edge of the groove of the steel pipe is positioned on the same plane, and the assembly of the tool to be used is completed;
5) and (3) placing a test plate used in process evaluation on the tool in the step 4), enabling the back of the welding line to be in direct contact with the groove of the steel pipe, and inputting gas to the hose, so that gas protection can be realized on the back of the test plate and the back of the test plate is prevented from being oxidized due to argon arc welding.
2. The tool design method for preventing the back surface of the test plate from being oxidized due to argon arc welding according to claim 1, characterized in that: in step 3), a steel tube groove is cut at the position of the cross section 3/4 of the steel tube by cutting, so that the back of a test plate used in process evaluation can be directly contacted with protective gas.
3. The tool design method for preventing the back surface of the test plate from being oxidized due to argon arc welding according to claim 1, characterized in that: the cross section of the steel pipe groove is of a rectangular structure.
4. The tool design method for preventing the back surface of the test plate from being oxidized due to argon arc welding according to claim 3, characterized in that: in the step 2), the central axes of the small holes respectively arranged at the two ends of the steel pipe are positioned on the same straight line.
5. The tool design method for preventing the back surface of the test plate from being oxidized due to argon arc welding according to claim 4, characterized in that: in the step 2), the hose positioned in the small hole is in interference fit with the small hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911359867.5A CN110977120A (en) | 2019-12-25 | 2019-12-25 | Tool design method for preventing argon arc welding from causing oxidation of back surface of test plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911359867.5A CN110977120A (en) | 2019-12-25 | 2019-12-25 | Tool design method for preventing argon arc welding from causing oxidation of back surface of test plate |
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| CN110977120A true CN110977120A (en) | 2020-04-10 |
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| CN201911359867.5A Pending CN110977120A (en) | 2019-12-25 | 2019-12-25 | Tool design method for preventing argon arc welding from causing oxidation of back surface of test plate |
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Citations (6)
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| CN102581491A (en) * | 2012-03-01 | 2012-07-18 | 江苏科技大学 | Laser welding method for injection molding of Al-Zn-Mg-Cu aluminum alloy |
| CN106112341A (en) * | 2016-07-20 | 2016-11-16 | 江苏科技大学 | A kind of weld jig for the adjustable reversible deformation of titanium alloy |
| CN107931793A (en) * | 2017-11-01 | 2018-04-20 | 中国兵器科学研究院宁波分院 | A kind of titanium alloy welding back of the body protective device and welding method |
| CN207386941U (en) * | 2017-11-13 | 2018-05-22 | 无锡威孚力达催化净化器有限责任公司 | A kind of frock for being used to prepare qualification of welding procedure test plate (panel) |
| CN109623112A (en) * | 2019-01-02 | 2019-04-16 | 武汉船用机械有限责任公司 | A kind of shell argon arc welding back side atmosphere protection device |
| CN209288566U (en) * | 2018-10-26 | 2019-08-23 | 中船西江造船有限公司 | A kind of titanium steel soldering test gas shield tooling |
-
2019
- 2019-12-25 CN CN201911359867.5A patent/CN110977120A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581491A (en) * | 2012-03-01 | 2012-07-18 | 江苏科技大学 | Laser welding method for injection molding of Al-Zn-Mg-Cu aluminum alloy |
| CN106112341A (en) * | 2016-07-20 | 2016-11-16 | 江苏科技大学 | A kind of weld jig for the adjustable reversible deformation of titanium alloy |
| CN107931793A (en) * | 2017-11-01 | 2018-04-20 | 中国兵器科学研究院宁波分院 | A kind of titanium alloy welding back of the body protective device and welding method |
| CN207386941U (en) * | 2017-11-13 | 2018-05-22 | 无锡威孚力达催化净化器有限责任公司 | A kind of frock for being used to prepare qualification of welding procedure test plate (panel) |
| CN209288566U (en) * | 2018-10-26 | 2019-08-23 | 中船西江造船有限公司 | A kind of titanium steel soldering test gas shield tooling |
| CN109623112A (en) * | 2019-01-02 | 2019-04-16 | 武汉船用机械有限责任公司 | A kind of shell argon arc welding back side atmosphere protection device |
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Application publication date: 20200410 |