CN217142790U - Protection device for welding special-material small-diameter pipe - Google Patents
Protection device for welding special-material small-diameter pipe Download PDFInfo
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- CN217142790U CN217142790U CN202122817335.0U CN202122817335U CN217142790U CN 217142790 U CN217142790 U CN 217142790U CN 202122817335 U CN202122817335 U CN 202122817335U CN 217142790 U CN217142790 U CN 217142790U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
This novel protection device that belongs to, concretely relates to special material minor diameter pipe welded protection device. A protective device for welding a special-material small-diameter pipe comprises a shell, wherein an air guide pipe is arranged in the shell, and a channel of the air guide pipe is provided with a screen. This neotype effect that is showing is: the welding seam is completely arranged in the shell, so that the shielding gas refined by the screen is uniformly led to the welding seam, a molten pool, an uncooled welding seam and a heat affected zone are in full protection during welding, and the welding quality of special products can be effectively guaranteed by the tool through the verification of the finished special products.
Description
Technical Field
This novel protection device that belongs to, concretely relates to special material minor diameter pipe welded protection device.
Background
Compared with common carbon steel and stainless steel, the material has some special other properties, such as large specific strength and good toughness of titanium alloy, and is widely applied in aviation and aerospace industries, and in addition, titanium and titanium alloyGold also has good corrosion resistance, and the corrosion resistance is better than that of stainless steel in oxidizing, neutral and chloride ion media, and sometimes even 10 times of that of 1Cr18Ni19Ti stainless steel, so the gold also has successful application in the fields of chemical industry, metallurgy, electroplating, shipbuilding and the like. The strength and toughness of zirconium are not changed in practice under the action of neutron irradiation, and the thermal neutron absorption cross section is only 0.18 multiplied by 10 5 b, the zirconium alloy has great application in the nuclear power field, and in addition, the zirconium alloy also has the capability of resisting acid, alkali and liquid metal corrosion, and even exceeds metals such as niobium, titanium and the like in certain corrosion media, so the zirconium alloy can be applied to corrosion environments in which some titanium alloys cannot be used.
However, titanium is generally active, and forms a dense oxide film with oxygen at normal temperature to maintain high stability and corrosion resistance, but the oxide film formed at over 540 ℃ is not dense, and reacts with oxygen, nitrogen and hydrogen rapidly at high temperature, so that plasticity is reduced and embrittlement is serious. The same zirconium is also sensitive to gas reactions at high temperatures, and the weld becomes brittle as it becomes less corrosive when contaminated with gas.
Therefore, when special materials such as titanium, zirconium and the like are welded, the weld joint needs to be reliably protected. The general special material container main part welding seam is because of the product diameter is great, and the ring longitudinal joint is close to the straight line, and the effect of protection is reached to the laminating product that protection frock can be fine. However, the small diameter pipe has an excessively small diameter, and therefore it is difficult to perform weld protection by a similar side protection tool.
SUMMERY OF THE UTILITY MODEL
This is novel to prior art's defect, provides a special material minor diameter pipe welded protection device.
This is novel to realize like this: a protective device for welding a special-material small-diameter pipe comprises a shell, wherein an air guide pipe is arranged in the shell, and a channel of the air guide pipe is provided with a screen.
The protection device for welding the special-material small-diameter pipe is characterized in that the shell is a cylindrical part, and the top of the shell is provided with a groove.
The protection device for welding the special-material small-diameter pipe is characterized in that the shell is provided with the through hole, the through hole is formed in the side wall of the groove and penetrates through the side wall of the shell, and the through hole is used for a welded part to pass through
The protective device for welding the special-material small-diameter pipe is characterized in that the air guide pipe extends into the groove, and the screen is arranged at the tail end of the air guide pipe extending into the groove.
The protection device for welding the special-material small-diameter pipe is characterized in that the groove is rectangular.
The protection device for welding the special-material small-diameter pipe is characterized in that the air guide pipe is a copper pipe
The protection device for welding the special-material small-diameter pipe is characterized in that the tail end of the air guide pipe is uniformly perforated
The protective device for welding the special-material small-diameter pipe is characterized in that the punching position at the tail end of the air guide pipe is wrapped by the screen mesh
The protection device for welding the special-material small-diameter pipe is characterized in that the free end of the air guide pipe is communicated with a protection air source.
This neotype effect that is showing is: the welding seam is completely arranged in the shell, so that the shielding gas refined by the screen is uniformly led to the welding seam, a molten pool, an uncooled welding seam and a heat affected zone are in full protection during welding, and the welding quality of special products can be effectively guaranteed by the tool through the verification of the finished special products.
Drawings
FIG. 1 is a view of a small-diameter welding protector made of special materials,
fig. 2 is an AA-side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Wherein: 1. the shell, 2, the air duct, 3, the screen cloth.
Detailed Description
The present invention will be further described with reference to fig. 1.
As shown in the attached drawing, when the special small-diameter pipe is welded, the small-diameter pipe passes through holes at two ends of the shell, the welding seam is completely arranged in the shell, the welding area to be welded can be uniformly protected in the protective gas, a welder welds the pipe through the opening above the shell during welding, and the welding seam is welded by rotating the small-diameter pipe. The weld pool, the uncooled weld joint, the heat affected zone, the high temperature zone on the back of the weld joint and the like can be protected in the welding process, and the welding quality is ensured.
Claims (6)
1. The utility model provides a protection device of special material minor diameter pipe welding which characterized in that: comprises a shell (1), wherein an air duct (2) is arranged in the shell (1), and a screen (3) is arranged on a channel of the air duct (2);
the shell (1) is a cylindrical part, and a groove is formed in the top of the shell (1);
the shell (1) is provided with a through hole, the through hole is formed in the side wall of the groove and penetrates through the side wall of the shell (1), and the through hole is used for a welded part to pass through;
the air duct (2) extends into the groove, and the screen (3) is arranged at the tail end of the air duct (2) extending into the groove.
2. A protector for welding a special-material small-diameter pipe according to claim 1, wherein: the groove is rectangular.
3. A protector for welding a special-material small-diameter pipe according to claim 2, wherein: the air duct (2) is a copper pipe.
4. A protector for welding a special-material small-diameter pipe according to claim 3, wherein: the tail end of the air duct (2) is uniformly perforated.
5. A protector for welding a special-material small-diameter pipe according to claim 4, wherein: the punching positions at the tail ends of the air guide pipes (2) are all wrapped by the screen meshes (3).
6. A protector for welding a special-material small-diameter pipe according to claim 5, wherein: the free end of the air duct (2) is communicated with a protective air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122817335.0U CN217142790U (en) | 2021-11-17 | 2021-11-17 | Protection device for welding special-material small-diameter pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122817335.0U CN217142790U (en) | 2021-11-17 | 2021-11-17 | Protection device for welding special-material small-diameter pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217142790U true CN217142790U (en) | 2022-08-09 |
Family
ID=82684443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122817335.0U Active CN217142790U (en) | 2021-11-17 | 2021-11-17 | Protection device for welding special-material small-diameter pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217142790U (en) |
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2021
- 2021-11-17 CN CN202122817335.0U patent/CN217142790U/en active Active
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