CN218926534U - Rare metal welding protection device - Google Patents
Rare metal welding protection device Download PDFInfo
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- CN218926534U CN218926534U CN202223336362.7U CN202223336362U CN218926534U CN 218926534 U CN218926534 U CN 218926534U CN 202223336362 U CN202223336362 U CN 202223336362U CN 218926534 U CN218926534 U CN 218926534U
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Abstract
The utility model is mainly applied to the technical field of weld joint protection of rare metal in field welding and prevents the mechanical property of the weld joint from being reduced due to oxidation, and particularly relates to a rare metal welding protection device. The utility model can meet the field welding requirement of rare metals, prevent oxidation in the welding process, improve the welding flaw detection qualification rate, reduce welding repair and reduce material loss. The operation is convenient, and the labor efficiency is improved. The waste of protective gas is reduced, and the construction cost is reduced.
Description
Technical Field
The utility model relates to a rare metal welding protection device which is mainly applied to the technical field of weld joint protection of rare metals (zirconium and titanium) in field welding and can prevent the decrease of the mechanical properties of the weld joint caused by oxidation.
Background
The rare metals (zirconium and titanium) should be sufficiently protected from air in the weld pool, weld bead and heat affected zone, and tungsten argon gas shielded welding is generally used for welding. Under the conditions of good welding protection and no pollution on the surface of the welding seam, the welding seam is not easy to generate crystallization cracks and cold cracks. The rare metals are generally easy to react with the atmosphere at high temperature, oxygen is absorbed at 200 ℃, hydrogen is absorbed at 300 ℃, nitrogen is absorbed at 400 ℃, the higher the temperature is, the stronger the reaction intensity is, and the protection of weld joints and base materials is particularly important in the welding process. The existing field welding protection device has the following problems:
1. the protection effect is not good enough, and the welding seam oxidation phenomenon easily occurs in the welding process.
2. The welding protective gas (high purity argon) is seriously wasted, and the construction cost is increased.
3. The butt weld is protected only for welding round pipes, and is not applicable for welding fillet welds.
Disclosure of Invention
The utility model aims to solve the technical problems that: the rare metal welding protection device not only can protect welding angle joint welding seams during rare metal welding, but also can protect a welding gun and save gas.
The rare metal welding protection device comprises a shell, wherein an air outlet net is arranged on the bottom surface of the shell, an air distribution net is transversely arranged in the shell, an air inlet pipe is horizontally arranged above the air distribution net, an air inlet hole is distributed at the upper part of the inner end of the air inlet pipe, the outer end penetrates through the rear end of the shell, a groove is vertically arranged at the front end of the shell, a welding gun supporting pipe is fixedly connected in the groove, air outlet holes communicated with the shell are uniformly distributed at the joint of the welding gun supporting pipe and the shell, and a welding gun clamping assembly is arranged at the upper part of the welding gun supporting pipe.
The shell is an arc-shaped shell, the cross section of the shell is arc-shaped, and the arc surface of the gas distribution net corresponding to the shell is an arc-shaped net.
The upper part of the air inlet pipe is respectively provided with a row of air inlet holes with the diameter of 1.5mm towards 45 degrees on two sides relative to the vertical axis, and the distance between each row of air inlet holes is 10mm.
The gas distribution net is arranged into three layers.
The groove is an arc groove, and the welding gun supporting tube is embedded in the groove.
The air outlet net is set as stainless steel wire net, and the air inlet pipe is set as copper pipe.
The shell is made of pure copper thin plates, the air inlet pipe is arranged to be a pure copper pipe, the air outlet net is arranged to be a stainless steel wire net, and the pure copper material is used for manufacturing the shell, so that heat dissipation is facilitated, and welding quality is facilitated. The lower part of the welding gun supporting tube is uniformly provided with air outlet holes, and the welding gun supporting tube is communicated with the inside of the shell through the air outlet holes. The clamping assembly of the welding gun can adopt a clamp type fastening assembly, the top of the supporting tube of the welding gun can adopt a side opening type structure, clamping and position adjustment of the welding gun are facilitated, and applicability is improved.
The utility model is mainly used for protecting the corner joint weld joint, when in use, the end face with the welding gun supporting tube is the front end, the air inlet pipe is arranged at the back of the protecting shell, air enters the air inlet pipe, then is blown to the upper surface of the shell through two rows of inclined 45-degree air inlet holes arranged at the upper part of the inner end of the air inlet pipe, is reflected downwards through the inner top of the shell, is uniformly distributed through the air distribution network, and part of the air is delivered to the position of the protected weld joint through the air outlet network, thereby improving the uniformity of air distribution. The other part can evenly flow to the welding gun supporting tube through the air outlet holes arranged below the welding gun, the welding gun is assisted to protect the welding quality, and meanwhile, the protection gas can be saved and the waste is reduced.
During welding, a welding gun is fixed in a welding gun supporting tube and clamped by a welding gun clamping assembly, shielding gas is connected to an air inlet pipe, and the shielding gas is opened to check whether the gas flow is smooth; placing the utility model on a corner joint to be welded; starting welding after the installation process is checked to be error-free; and (5) after the welding is finished, the temperature of the part to be welded is reduced to below 300 ℃, and the part to be welded is taken down.
The beneficial effects of the utility model are as follows:
1. the welding method can meet the field welding requirement of rare metals, prevent oxidation in the welding process, improve the welding flaw detection qualification rate, reduce welding repair and reduce material loss.
2. The operation is convenient, and the labor efficiency is improved.
3. The waste of protective gas is reduced, and the construction cost is reduced.
4. And the welding gun is assisted to protect the welding quality.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic left-hand view of the gun support tube of fig. 1 with a gun removed.
Fig. 3 is a schematic top view of fig. 2.
Fig. 4 is a schematic view of the structure of the inner end of the air intake pipe.
Fig. 5 is a schematic sectional view of the inner end of the intake pipe.
FIG. 6 is a schematic view of the position structure of the present utility model in use.
In the figure: 1. an air inlet pipe; 2. a housing; 3. a gas distribution network; 4. a groove; 5. an air outlet net; 6. an air inlet hole; 7. a welding gun supporting tube; 8. a welding gun clamping assembly; 9. and (5) a corner joint to be welded.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 6, the rare metal welding protection device comprises a shell 2, wherein an air outlet net 5 is arranged on the bottom surface of the shell 2, an air distribution net 3 is transversely arranged in the shell 2, an air inlet pipe 1 is horizontally arranged above the air distribution net 3, an air inlet hole 6 is distributed at the upper part of the inner end of the air inlet pipe 1, the outer end penetrates through the rear end of the shell 2, a groove 4 is vertically arranged at the front end of the shell 2, a welding gun supporting pipe 7 is fixedly connected in the groove 4, air outlet holes communicated with the shell 2 are uniformly distributed at the joint of the welding gun supporting pipe 7 and the shell 2, and a welding gun clamping assembly 8 is arranged at the upper part of the welding gun supporting pipe 7. The shell 2 is an arc-shaped shell, the cross section of the shell is arc-shaped, and the gas distribution net 3 is an arc-shaped net corresponding to the arc surface of the shell. The upper part of the air inlet pipe 1 is respectively provided with a row of air inlet holes 6 with the diameter of 1.5mm towards the 45-degree direction of two sides relative to the vertical axis, and the distance between each row of air inlet holes 6 is 10mm. The gas distribution net 3 is arranged into three layers. The groove 4 is arranged as an arc-shaped groove 4, and the welding gun supporting tube 7 is embedded in the groove 4. The air outlet net 5 is set as stainless steel wire net, and the air inlet pipe 1 is set as copper pipe.
The utility model is mainly used for protecting the corner joint weld joint, when in use, the end face with the welding gun supporting tube 7 is the front end, the air inlet tube 1 is arranged at the back of the protecting shell, air enters the air inlet tube 1, then air is blown onto the shell 2 through two rows of inclined air inlet holes 6 of 45 degrees arranged at the upper part of the inner end of the air inlet tube 1, and is downwards and uniformly distributed through the air distribution net 3 after being reflected by the top of the shell 2, and part of the air reaches the position of the protected weld joint through the air outlet net 5, so that the uniformity of air distribution is improved. The other part can evenly flow to the welding gun supporting tube 7 through the air outlet holes arranged below the welding gun, the welding gun is assisted to protect the welding quality, and meanwhile, the protection gas can be saved and the waste is reduced.
During welding, a welding gun is fixed in a welding gun supporting tube 7 and clamped by a welding gun clamping assembly 8, shielding gas is connected to the air inlet pipe 1, and the shielding gas is opened to check whether the gas flow is smooth; placing the utility model on the corner joint 9 to be welded; starting welding after the installation process is checked to be error-free; and (5) after the welding is finished, the temperature of the part to be welded is reduced to below 300 ℃, and the part to be welded is taken down.
Claims (6)
1. A rare metal welding protection device is characterized in that: including casing (2), casing (2) bottom surface sets up to net (5) of giving vent to anger, transversely arrange gas distribution net (3) in casing (2), gas distribution net (3) top level sets up intake pipe (1), the distribution of the interior upper portion of intake pipe (1) has inlet port (6), the outer end runs through casing (2) rear end, casing (2) front end vertically sets up recess (4), fixed connection welder stay tube (7) in recess (4), welder stay tube (7) have the venthole with casing (2) intercommunication with casing (2) junction evenly distributed, welder stay tube (7) upper portion sets up welder clamping assembly (8).
2. The rare metal weld protecting apparatus according to claim 1, wherein: the shell (2) is an arc-shaped shell, the cross section of the shell is arc-shaped, and the gas distribution net (3) is an arc-shaped net corresponding to the arc surface of the shell (2).
3. The rare metal weld protecting apparatus according to claim 1, wherein: the upper part of the air inlet pipe (1) is respectively provided with a row of air inlet holes (6) with the diameter of 1.5mm towards 45 degrees on two sides relative to the vertical axis, and the distance between each row of air inlet holes (6) is 10mm.
4. The rare metal weld protecting apparatus according to claim 1, wherein: the gas distribution net (3) is arranged into three layers.
5. The rare metal weld protecting apparatus according to claim 1, wherein: the groove (4) is an arc-shaped groove, and the welding gun supporting tube (7) is embedded in the groove (4).
6. The rare metal weld protecting apparatus according to claim 1, wherein: the air outlet net (5) is set as stainless steel wire net, and the air inlet pipe (1) is set as copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223336362.7U CN218926534U (en) | 2022-12-12 | 2022-12-12 | Rare metal welding protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223336362.7U CN218926534U (en) | 2022-12-12 | 2022-12-12 | Rare metal welding protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218926534U true CN218926534U (en) | 2023-04-28 |
Family
ID=86083356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223336362.7U Active CN218926534U (en) | 2022-12-12 | 2022-12-12 | Rare metal welding protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218926534U (en) |
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2022
- 2022-12-12 CN CN202223336362.7U patent/CN218926534U/en active Active
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