CN202922087U - Argon protection device for stainless steel welded tube - Google Patents
Argon protection device for stainless steel welded tube Download PDFInfo
- Publication number
- CN202922087U CN202922087U CN 201220571282 CN201220571282U CN202922087U CN 202922087 U CN202922087 U CN 202922087U CN 201220571282 CN201220571282 CN 201220571282 CN 201220571282 U CN201220571282 U CN 201220571282U CN 202922087 U CN202922087 U CN 202922087U
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- CN
- China
- Prior art keywords
- argon
- stainless steel
- steel welded
- tube connector
- welded pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an argon protection device for a stainless steel welded tube, which comprises a connecting tube provided with an argon outlet, and two sealing baffles mounted on the connecting tube, wherein the sealing baffles are provided with eccentric holes, and arranged on the connecting tube through the eccentric holes; dots on the external circumference surfaces of the sealing baffles, which have the shortest vertical distances to the centers of the eccentric holes, form a nearest end; and the argon outlet is formed in a tube wall of the connecting tube close to the nearest end. The argon protection device is simple in structure, convenient to use, and good in sealability; the consumption of argon can be reduced; the use cost of argon is lowered; and the welded steel tube can have a better property.
Description
Technical field
The utility model relates to a kind of protective gas sealing device, particularly a kind of argon protective device for stainless steel welded pipe.
Background technology
At present, special steel pipe welding extensive use argon arc welding in welding procedure, is adopted inside to be filled with argon gas and is replaced welding protection, first carries out root bead by argon arc welding, then by manual welding procedure of filling with capping; Because some special steel pipes are strict to the content requirement of oxygen in when welding, oxygen exceeds standard and can make that in steel, the ratio of austenite phase and ferritic phase has greatly changed, thereby affects the performance of steel pipe.Therefore; in order to guarantee the quality and performance of steel pipe; the prior art application number is protective gas sealing device in 200920142835.5 1 kinds of pipeline welding pipes; it is characterized in that; two annular air-pockets are separately positioned on two carriages; two carriages link together by jockey, are provided with the argon gas feeder on described jockey.In prior art, sealing device is to adopt air sac sealing, before construction, also needs airbag aeration, if under-inflation may have the gap, does not reach the effect of sealing, and the staff is wasted time and energy; The argon gas feeder is arranged on the center position of jockey, and is remote from welding seam distance, do not reach effect, affects the performance of steel pipe; Distance is remote, and the use amount of argon gas is just large, and the one-tenth of welding is large just to be increased.
The utility model content
The purpose of this utility model is to provide a kind of good airproof performance, can reduce the use amount of argon gas and can reach the argon protective device of better effect.
Realize that the above-mentioned purpose technical solution is: a kind of argon protective device for stainless steel welded pipe, comprise the tube connector that is provided with the argon gas venthole, be arranged on two sealing baffles on described tube connector, described sealing baffle has eccentric orfice, and described sealing baffle is arranged on tube connector by eccentric orfice; Form most proximal end with the shortest point of the central vertical distance of described eccentric orfice on described sealing baffle outer circumference surface, described argon gas venthole is arranged near on the tube connector tube wall of described most proximal end.
The utility model tube connector departs from the setting at sealing device center, is the process of steel pipe walls that arrives in order to shorten argon gas, thereby reduces the use amount of argon gas, also allows argon shield reach better effect.
As preferably, the eccentric throw of described eccentric orfice is 5-10cm.
As preferably, the eccentric throw of described eccentric orfice is 2/3 of described sealing baffle radius.
As preferably, described tube connector comprises intervalve, is fixed on the forward flange of described intervalve one end, is fixed on the rear end cap of the described intervalve other end.
As preferably, an end of described sealing baffle is the conical surface, and the other end is the plane.
As preferably, the forward flange of described tube connector is connected with flange.
As preferably, be provided with sealing ring between described forward flange and flange.
As preferably, an end of described flange is fixed with argon inlet pipe.
The beneficial effects of the utility model are: the utility model is simple in structure, easy to use; The device good airproof performance; Can reduce the argon gas use amount, reduce the argon gas use cost; After welding, steel can reach better performance.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of sealing baffle in the utility model.
In figure, 1-sealing baffle, 2-most proximal end, 3-tube connector, 4-argon gas venthole, 5-sealing ring, 6-flange, 7-argon inlet pipe, 31-intervalve, 32-forward flange, 34-rear end cap, 101-eccentric orfice.
The specific embodiment
The utility model is described in further detail with embodiment below in conjunction with accompanying drawing.
As shown in Fig. 1-2, a kind of argon protective device for stainless steel welded pipe is inserted in stainless steel welded pipe, during welding, and ejection argon shield steel pipe.It comprises two sealing baffles 1 that are arranged on tube connector 3, has eccentric orfice 101 on sealing baffle 1, and the eccentric throw of eccentric orfice 101 is 2/3 of sealing baffle 1 radius.Two sealing baffles 1 are arranged on the forward flange 32 and rear end cap 33 of tube connector 3 separately by eccentric orfice 101.Forward flange 32 forms tube connector 3 with the two ends that rear end cap 33 is fixedly connected on intervalve 31.Forward flange 32 is connected by screw with flange 6, and is air tight in order to guarantee, also is provided with a sealing ring 5 between them.One end of flange 6 is welded with an argon inlet pipe 7, and argon gas pours from it, enters in tube connector 3 through flange 6, forward flange 32, from 4 ejections of argon gas fumarole.Form most proximal end 2 with the shortest point of the central vertical distance of eccentric orfice 101 on sealing baffle 1 outer circumference surface.In order to shorten argon gas to the process of steel pipe walls, reduce the use amount of argon gas, also allow argon shield reach better effect, therefore, argon gas venthole 4 is arranged near on tube connector 3 tube walls of most proximal end 2.One end of sealing baffle 1 is the conical surface, and the other end is the plane, guarantees the bonding strength of sealing baffle 1 and duct wall, reaches better sealing.
Claims (8)
1. argon protective device that is used for stainless steel welded pipe, comprise the tube connector (3) that is provided with argon gas venthole (4), be arranged on two sealing baffles (1) on described tube connector (3), it is characterized in that: described sealing baffle (1) has eccentric orfice (101), and described sealing baffle (1) is arranged on tube connector (3) by eccentric orfice (101); Form most proximal end (2) with the shortest point of the central vertical distance of described eccentric orfice (101) on described sealing baffle (1) outer circumference surface, described argon gas venthole (4) is arranged near on tube connector (3) tube wall of described most proximal end (2).
2. a kind of argon protective device for stainless steel welded pipe according to claim 1, it is characterized in that: the eccentric throw of described eccentric orfice (101) is 5-10cm.
3. a kind of argon protective device for stainless steel welded pipe according to claim 1, it is characterized in that: the eccentric throw of described eccentric orfice (101) is 2/3 of described sealing baffle (1) radius.
4. a kind of argon protective device for stainless steel welded pipe according to claim 1; it is characterized in that: described tube connector (3) comprises intervalve (31), is fixed on the forward flange (32) of described intervalve (31) one ends, is fixed on the rear end cap (33) of described intervalve (31) other end.
5. a kind of argon protective device for stainless steel welded pipe according to claim 1, it is characterized in that: an end of described sealing baffle (1) is the conical surface, the other end is the plane.
6. a kind of argon protective device for stainless steel welded pipe according to claim 4, it is characterized in that: the forward flange (32) of described tube connector (3) is connected with flange (6).
7. a kind of argon protective device for stainless steel welded pipe according to claim 6, is characterized in that: be provided with sealing ring (5) between described forward flange (32) and flange (6).
8. according to claim 6 or 7 described a kind of argon protective devices for stainless steel welded pipe, it is characterized in that: an end of described flange (6) is fixed with argon inlet pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571282 CN202922087U (en) | 2012-11-02 | 2012-11-02 | Argon protection device for stainless steel welded tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571282 CN202922087U (en) | 2012-11-02 | 2012-11-02 | Argon protection device for stainless steel welded tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202922087U true CN202922087U (en) | 2013-05-08 |
Family
ID=48212080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220571282 Expired - Lifetime CN202922087U (en) | 2012-11-02 | 2012-11-02 | Argon protection device for stainless steel welded tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202922087U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935832A (en) * | 2016-07-06 | 2016-09-14 | 兰州兰石重型装备股份有限公司 | Titanium heat exchange tube welded argon shield device and using method thereof |
| CN108247293A (en) * | 2017-12-29 | 2018-07-06 | 浙江久立特材科技股份有限公司 | A kind of photo-thermal power generation thermal-arrest and the manufacturing method for heatproof specific alloy welded pipe of absorbing heat |
-
2012
- 2012-11-02 CN CN 201220571282 patent/CN202922087U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935832A (en) * | 2016-07-06 | 2016-09-14 | 兰州兰石重型装备股份有限公司 | Titanium heat exchange tube welded argon shield device and using method thereof |
| CN108247293A (en) * | 2017-12-29 | 2018-07-06 | 浙江久立特材科技股份有限公司 | A kind of photo-thermal power generation thermal-arrest and the manufacturing method for heatproof specific alloy welded pipe of absorbing heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
|
| CX01 | Expiry of patent term |