CN203791490U - Mandrel for hot pushing of elbows - Google Patents
Mandrel for hot pushing of elbows Download PDFInfo
- Publication number
- CN203791490U CN203791490U CN201420209329.4U CN201420209329U CN203791490U CN 203791490 U CN203791490 U CN 203791490U CN 201420209329 U CN201420209329 U CN 201420209329U CN 203791490 U CN203791490 U CN 203791490U
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- CN
- China
- Prior art keywords
- mandrel
- flow channel
- coolant flow
- elbows
- plug
- 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.)
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Abstract
A mandrel for hot pushing of elbows comprises a mandrel body (1) and is characterized in that the mandrel body (1) is provided with a hollow cooling runner (2), a sealing plug (3) is arranged at a bent end of the hollow cooling runner (2), an outer pipe (4) is connected with the other end of the hollow cooling runner (2), an inner pipe (5) penetrates through the outer pipe (4) to extend into the hollow cooling runner (2), and cooling liquid flows into the hollow cooling runner (2) from the inner pipe (5) to cool the mandrel body (1) prior to flowing out from an outlet end of the outer pipe (4). The mandrel for hot pushing of the elbows has the advantages that strength of the elbows can be guaranteed while the requirement on long-time utilization at a high temperature is met, reliability of the mandrel is greatly improved, and the service life of the mandrel is greatly prolonged.
Description
Technical field
the utility model relates to a kind of pipeline technology of preparing, especially a kind of forming technique of special-shaped pipeline, specifically a kind of pipeline moulding hot push elbow plug.
Background technology
The plug that hot push elbow adopts is at present all common plug, for plug itself, contact with high temperature workpiece pushing away in curved process always, the temperature of plug also can raise, even the temperature that adopts the method for heating in medium frequency also to keep away unavoidable plug raises, and on plug, plug is worked for a long time and is just easily straightened or directly brittle failure under high temperature stressing conditions at the resistance to deformation effect of stress that pushes away pipe in curved process.So in order to ensure the Forming Quality of product and the service time of prolongation plug, just must improve plug.
Summary of the invention
The purpose of this utility model is to pick plug because stressed and impact ambient temperature work under the condition of high temperature all the time for current, affects the problem in service life, designs a kind of hot push elbow plug with cooling structure.
The technical solution of the utility model is:
A kind of hot push elbow plug, it comprises barred body 1, it is characterized in that described barred body 1 is provided with the coolant flow channel 2 of hollow, the curved end of coolant flow channel 2 is provided with block head 3, the other end is connected with outer tube 4, inner tube 5 stretches in coolant flow channel 2 through outer tube 4, and cooling fluid enters after cooling to barred body 1 coolant flow channel 2 and flows out from the port of export of outer tube 4 from inner tube 5.
The port of export that described inner tube 5 stretches into coolant flow channel 2 is relative with block head 3, and inner tube 5 forms the inner flow passage of cooling fluid, and coolant flow channel 2 forms outer flow passage and is connected with the port of export of outer tube.
The beneficial effects of the utility model:
The utility model can ensure the intensity of elbow, has ensured again at high temperature instructions for use for a long time, and its reliability, service life are greatly promoted.
The utility model is simple in structure, easily manufactured.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, arrow represents flow of cooling water direction.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1.
A kind of hot push elbow plug, it comprises barred body 1, described barred body 1 is provided with the coolant flow channel 2 of hollow, the curved end of coolant flow channel 2 is provided with block head 3, the other end is connected with outer tube 4, inner tube 5 stretches in coolant flow channel 2 through outer tube 4, and cooling fluid enters after cooling to barred body 1 coolant flow channel 2 and flows out from the port of export of outer tube 4 from inner tube 5.The port of export that described inner tube 5 stretches into coolant flow channel 2 is relative with block head 3, and inner tube 5 forms the inner flow passage of cooling fluid, and coolant flow channel 2 forms outer flow passage and is connected with the port of export of outer tube.As shown in Figure 1.
Using method of the present utility model is:
First the hole of plug bottom is sealed with block head 3, loaded onto outer tube sleeve pipe at the other end, the inner tube 5 of sleeve pipe connects with pump, and then pump is connected with pond again, and outer tube 4 is directly connected with pond.Inner tube, pump, pond like this, outer tube has just formed a circulation by pipeline.Pick bend pipe produce in, the water in cooling bay just enters by pump the coolant flow channel 2 that inner tube enters plug again, water flows back to pond through pipeline again by outer tube 4 after the interior circulation of coolant flow channel 2.Continue this circulation by the work of pump, thereby the water circulating reaches the object of lowering the temperature to plug by the temperature that contact heat transmission with plug and take away plug.Plug after cooling is the work of energy longer time just, thereby improved production efficiency, has reduced production cost.
The utility model does not relate to partly all prior aries that maybe can adopt same as the prior art to be realized.
Claims (2)
1. a hot push elbow plug, it comprises barred body (1), it is characterized in that described barred body (1) is provided with the coolant flow channel (2) of hollow, the curved end of coolant flow channel (2) is provided with block head (3), the other end is connected with outer tube (4), inner tube (5) stretches in coolant flow channel (2) through outer tube (4), and cooling fluid enters after cooling to barred body (1) coolant flow channel (2) and flows out from the port of export of outer tube (4) from inner tube (5).
2. hot push elbow plug according to claim 1, the port of export that inner tube (5) described in it is characterized in that stretches into coolant flow channel (2) is relative with block head (3), inner tube (5) forms the inner flow passage of cooling fluid, and coolant flow channel (2) forms outer flow passage and is connected with the port of export of outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209329.4U CN203791490U (en) | 2014-04-28 | 2014-04-28 | Mandrel for hot pushing of elbows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209329.4U CN203791490U (en) | 2014-04-28 | 2014-04-28 | Mandrel for hot pushing of elbows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791490U true CN203791490U (en) | 2014-08-27 |
Family
ID=51373761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420209329.4U Active CN203791490U (en) | 2014-04-28 | 2014-04-28 | Mandrel for hot pushing of elbows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203791490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077131A (en) * | 2016-06-24 | 2016-11-09 | 河北宇鹏重工管道装备制造有限公司 | A kind of gas heating picks the method for manufacturing technology of stainless steel jointless elbow |
-
2014
- 2014-04-28 CN CN201420209329.4U patent/CN203791490U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077131A (en) * | 2016-06-24 | 2016-11-09 | 河北宇鹏重工管道装备制造有限公司 | A kind of gas heating picks the method for manufacturing technology of stainless steel jointless elbow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |