CN201764151U - Socket joint type stainless steel welding pipe with transitional side - Google Patents
Socket joint type stainless steel welding pipe with transitional side Download PDFInfo
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- CN201764151U CN201764151U CN2010205166180U CN201020516618U CN201764151U CN 201764151 U CN201764151 U CN 201764151U CN 2010205166180 U CN2010205166180 U CN 2010205166180U CN 201020516618 U CN201020516618 U CN 201020516618U CN 201764151 U CN201764151 U CN 201764151U
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- steel welding
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Abstract
The utility model relates to a socket joint type stainless steel welding pipe with transitional side, an annular smelting connection groove is machined at the end of the pipe socket, the annular smelting connection groove is an annular inclined groove with an outer wall surface of a circular arc shape, and an annular flat groove is provided at the front of the annular inclined groove. The utility model has advantages of simple structure, convenient machining, beautiful connected weld joints, high connection strength, good seal performance, and is applied to the connection of various thin wall stainless steel pipes.
Description
Technical field
The utility model relates to a kind of spigot and socket type stainless steel welding tube spare, is used for the connection of pipelines such as thin-wall stainless steel.
Background technique
Spigot and socket type argon arc welding linkage structure is a kind of linkage structure that traditional socket joint mode and argon arc welding are organically combined, and this linkage structure has solved thin-walled stainless steel tube effectively problems in connecting are installed.The technical characteristics of its connection: pipe fitting mouth end expansion bellmouth position (abbreviation bellmouth) plays the role of positioning, and makes annular groove in the end of bellmouth, and during welding, directly the groove fusing with the bellmouth end is welded together with outer pipe wall.
And from present known groove type, annular flat groove or annular ramp mouth are arranged, and these two kinds of grooves all are a kind of straight flange grooves at present, and the straight flange groove often stress concentrate, so the tensile strength at welding position is low, become the weak spot of the withstand voltage and resistance to deformation of pipe-line system; Wall thickness variation is big simultaneously, and welding is had relatively high expectations, and weld seam is difficult to accomplish meticulous level and smooth.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of at the prior art present situation and can avoid stress to concentrate, improve the tensile strength at welding position, and can guarantee the level and smooth band transition limit spigot and socket type stainless steel welding tube spare attractive in appearance of weld seam.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of band transition limit spigot and socket type stainless steel welding tube spare, be processed with annular welding groove in the end of pipe fitting bellmouth, it is characterized in that described annular welding groove is the annular ramp mouth that outer wall is an arc surface.
The outer wall of described annular ramp mouth can be convex arc surface or concaved circular cambered surface.
The radial thickness of described annular ramp mouth end face can be 0.1mm～2.0mm, and the axial length of annular ramp mouth can be 1mm～5mm, and the radius of curvature of arc surface can be 1mm～1000mm.
Further, also can extend the annular flat groove in the front of described annular ramp mouth.
The end face radial thickness of described annular flat groove is 0.1mm～2.0mm, the axial length of annular flat groove is 0.1mm～5mm, and have the pipe fitting bellmouth of annular flat groove, the axial length of its annular ramp mouth also can be 1mm～5mm, and the radius of curvature of arc surface also can be 1mm～1000mm.
After above-mentioned pipe fitting, its bellmouth internal diameter will make pipe insert, the one-sided gap that maintains 0～0.5mm between the outer wall of pipe and the inwall of bellmouth.
Compared with prior art, advantage of the present utility model is: the utility model fitting structure is simple, easy to process, connection back weld seam is attractive in appearance, join strength is high, good airproof performance.Be adapted at various thin-walled stainless steel tubes and connect upward use.
Description of drawings
Fig. 1 adopts the structural representation of concaved circular cambered surface pattern for the utility model embodiment.
Fig. 2 is the A portion enlarged view of Fig. 1.
Fig. 3 adopts the structural representation of convex arc surface pattern for the utility model embodiment.
Fig. 4 is the B portion enlarged view of Fig. 3.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one: in conjunction with Fig. 1-shown in Figure 4, the utility model band transition limit spigot and socket type stainless steel welding tube spare is provided with bellmouth 3, after pipe 1 inserts in the bellmouth 3, and the one-sided gap that maintains 0～0.5mm between the inwall of the outer wall of pipe 1 and pipe fitting 2.And be manufactured with annular welding groove 4 at the top end of pipe fitting bellmouth 3, this annular welding groove 4 is different with known annular ramp mouth, it is the annular ramp mouth that an outer wall is arc surface, the radial thickness H of annular ramp mouth end face is 0.1mm～2.0mm, the axial length L of annular ramp mouth is 1mm～5mm, and the radius of curvature R of arc surface is 1mm～1000mm.And arc surface can be convex arc surface (as shown in Figure 4) or concaved circular cambered surface (as shown in Figure 2).
The groove arc surface of two bellmouth can be identical in same pipe fitting, also can be different, and the groove arc surface at its two of pipe fitting shown in the present embodiment figure is consistent.As be designed to inconsistently, and promptly pipe fitting its groove is made as convex arc surface, and the other end is made as concaved circular cambered surface.Other also can be like this as pipe fittings such as threeway, four-ways, can not influence the performance of pipe fitting.
During connection, the pipe that connect is inserted in the pipe fitting, welding slope mouth is melt into one mutually with the tube outer wall surface by argon arc welding.And its groove of above-mentioned pipe fitting to be specification difference with pipe change, tube outer diameter that is connected and wall thickness increase, the circular arc radius of curvature of pipe fitting groove, axial length and end face radial thickness are also wanted corresponding increase.
Pipe fitting also can be threeway, elbow, four-way, straight-through isometrical or reducing fittings except two shown in the figure is logical, specifically is to select suitable pipe fitting for use according to connecting needs.
This pipe fitting is because the groove inclined-plane is an arc surface, so wall thickness is even, and does not have the straight flange transition, has avoided stress to concentrate, thereby can improve the tensile strength at welding position, guarantees that weld seam is smoothly attractive in appearance.
The utility model also can be made other remodeling except shown in embodiment one figure, as can extending the annular flat groove in the front of annular ramp mouth, therefore whole groove can be added that the slope mouth at rear portion forms by the flat slope mouth of front portion.
The end face radial thickness of above-mentioned annular flat groove is 0.1mm～2.0mm, the axial length of annular flat groove is 0.1mm～5mm, and have the pipe fitting bellmouth of annular flat groove, and the axial length of its annular ramp mouth also is 1mm～5mm, the radius of curvature of arc surface also is 1mm～1000mm.
Claims (6)
1. a band transition limit spigot and socket type stainless steel welding tube spare is processed with annular welding groove in the end of pipe fitting bellmouth, and it is characterized in that: described annular welding groove is the annular ramp mouth that outer wall is an arc surface.
2. band transition as claimed in claim 1 limit spigot and socket type stainless steel welding tube spare, it is characterized in that: the outer wall of described annular ramp mouth is convex arc surface or concaved circular cambered surface.
3. band transition as claimed in claim 1 or 2 limit spigot and socket type stainless steel welding tube spare, it is characterized in that: the front at described annular ramp mouth has also extended the annular flat groove.
4. band transition as claimed in claim 1 or 2 limit spigot and socket type stainless steel welding tube spare, it is characterized in that: the radial thickness of described annular ramp mouth end face is 0.1mm～2.0mm, the axial length of annular ramp mouth is 1mm～5mm, and the radius of curvature of arc surface is 1mm～1000mm.
5. band transition as claimed in claim 3 limit spigot and socket type stainless steel welding tube spare, it is characterized in that: the end face radial thickness of described annular flat groove is 0.1mm～2.0mm, the axial length of annular flat groove is 0.1mm～5mm, the axial length of annular ramp mouth is 1mm～5mm, and the radius of curvature of arc surface is 1mm～1000mm.
6. band transition as claimed in claim 1 limit spigot and socket type stainless steel welding tube spare is characterized in that: described pipe fitting bellmouth internal diameter will make the one-sided gap that maintains 0～0.5mm between the inwall of the outer wall of pipe of insertion and bellmouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205166180U CN201764151U (en) | 2010-08-27 | 2010-08-27 | Socket joint type stainless steel welding pipe with transitional side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205166180U CN201764151U (en) | 2010-08-27 | 2010-08-27 | Socket joint type stainless steel welding pipe with transitional side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764151U true CN201764151U (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205166180U Expired - Fee Related CN201764151U (en) | 2010-08-27 | 2010-08-27 | Socket joint type stainless steel welding pipe with transitional side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537545A (en) * | 2011-12-13 | 2012-07-04 | 浙江天兴管业有限公司 | Structure and method for connecting metal pipe fitting |
| CN106151726A (en) * | 2015-04-05 | 2016-11-23 | 鹤岗市安通实业有限公司 | A kind of composite steel tube quickly connecting with white steel pipe with socket joint enlarging |
-
2010
- 2010-08-27 CN CN2010205166180U patent/CN201764151U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537545A (en) * | 2011-12-13 | 2012-07-04 | 浙江天兴管业有限公司 | Structure and method for connecting metal pipe fitting |
| CN106151726A (en) * | 2015-04-05 | 2016-11-23 | 鹤岗市安通实业有限公司 | A kind of composite steel tube quickly connecting with white steel pipe with socket joint enlarging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130827 |