CN204974772U - Modified is die sleeve for seamless steel pipe production - Google Patents
Modified is die sleeve for seamless steel pipe production Download PDFInfo
- Publication number
- CN204974772U CN204974772U CN201520736990.5U CN201520736990U CN204974772U CN 204974772 U CN204974772 U CN 204974772U CN 201520736990 U CN201520736990 U CN 201520736990U CN 204974772 U CN204974772 U CN 204974772U
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- China
- Prior art keywords
- steel pipe
- sleeve
- central lumen
- die body
- steel
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- Expired - Fee Related
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Abstract
The utility model discloses a modified is die sleeve for seamless steel pipe production, including the columniform die body, be provided with the central cavity that supplies the steel pipe to pass through in the die body, the center cavity is the toper, and the tapering of central cavity is 1: 3, the center is nested in the cavity to have a tungsten steel sleeve, and tungsten steel sleeve's length be the half the of die body length, tungsten steel sleeve's the mode and the central cavity fixed connection that pass through interference fit, the both ends of center cavity are provided with the steel pipe suction hole and the steel pipe portals, and steel pipe suction hole and steel pipe portal the longitudinal section of prolonging its axis and appear for parabola, the diameter of section that steel pipe suction hole and steel pipe portal diminishes from company's section centering cavity of die body gradually. The utility model has the advantages of prior art's drawback, the reasonable novelty of structural design can be overcome to it.
Description
Technical field
The utility model relates to a kind of seamless steel tube production die sleeve of improvement, belongs to seamless steel pipe field.
Background technology
Seamless steel pipe has hollow section, and a large amount of pipeline being used as conveying fluid, as transfer oil, natural gas, coal gas, water and some solid material etc.Seamless steel pipe compared with the solid steel such as round steel, under identical bending resistance torsional strength, the lighter in weight of seamless steel pipe; Meanwhile, seamless steel pipe is also widely used in manufacturing structure part and machine components, and as the steel scaffold etc. in oil drill rocker, truck drive shaft, bicycle rack and construction, stock utilization is high, and manufacturing process is simple and easy, and machining period reduces.Just because of the particularity of seamless steel pipe purposes, therefore, need to use various production equipment in the production process of seamless steel pipe, cold drawing die is exactly produce one very important in seamless steel pipe equipment.But existing most of cold drawing die comes with some shortcomings part in structural design, and cannot ensure the production precision of seamless steel pipe, the quality of production is low, and mould easily damages.
Utility model content
For the deficiency that prior art exists, technical problem to be solved in the utility model is, provide a kind of seamless steel tube production die sleeve of improvement, machining accuracy is high, and die life is long.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is, a kind of seamless steel tube production die sleeve of improvement, comprise columniform die body, be provided with the central lumen passed through for steel pipe in die body, described central lumen is taper, the tapering of central lumen is 1:3, central chamber is nested with wolfram steel sleeve, and the length of wolfram steel sleeve is the half of die body length, being fixedly connected with central lumen by the mode of interference fit of wolfram steel sleeve; The two ends of described central lumen are provided with steel pipe inlet hole and steel pipe portals, and steel pipe inlet hole and the steel pipe longitudinal section of prolonging its axis of portalling is parabola shaped; The diameter of section that described steel pipe inlet hole and steel pipe portal diminishes to central lumen gradually from company's section of die body; The degree of depth of described steel pipe inlet hole is less than the degree of depth that steel pipe portals; The length of described wolfram steel sleeve is identical with the length of central lumen and cover all surfaces of central lumen; The junction of described steel pipe inlet hole and central lumen is provided with the step surface I of annular, and steel pipe portals and is provided with the step surface II of annular with the junction of the die sleeve end face at its place.
Optimize, the seamless steel tube production die sleeve of above-mentioned improvement, the height of described step surface I is less than or equal to 0.15 centimetre, and the height of step surface II is less than or equal to 0.1 centimetre.
The utility model has the advantage of that it can overcome the drawback of prior art, reasonable in design is novel.By at die body nested inside wolfram steel sleeve, add hardness and the abrasion resistance of die body, improve the service life of die body simultaneously.Wolfram steel sleeve wears away to a certain extent after, wolfram steel sleeve can be changed, not need to change whole die body, reduce cost.Steel pipe inlet hole and steel pipe portal and are set to arc, being especially set to parabola shaped, reducing the resistance of steel pipe when entering die body, and make processing more simple, the lower power consumption of extruding steel pipe, saves production cost.The tapering of central lumen 1:3 reduce further the resistance of steel pipe when pressurizeing, thus further reduces energy consumption.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1 for chamber, 3 centered by die body, 2 be wolfram steel sleeve, 4 be steel pipe inlet hole, 5 for steel pipe portal, 6 for step surface I, 7 be step surface II.
Detailed description of the invention
Technical characterstic of the present invention is set forth further below in conjunction with accompanying drawing and specific embodiment.
embodiment 1
The utility model is a kind of seamless steel tube production die sleeve of improvement, comprise columniform die body, the central lumen passed through for steel pipe is provided with in die body, described central lumen is taper, the tapering of central lumen is 1:3, central chamber is nested with wolfram steel sleeve, and the length of wolfram steel sleeve is the half of die body length, being fixedly connected with central lumen by the mode of interference fit of wolfram steel sleeve; The two ends of described central lumen are provided with steel pipe inlet hole and steel pipe portals, and steel pipe inlet hole and the steel pipe longitudinal section of prolonging its axis of portalling is parabola shaped; The diameter of section that described steel pipe inlet hole and steel pipe portal diminishes to central lumen gradually from company's section of die body; The degree of depth of described steel pipe inlet hole is less than the degree of depth that steel pipe portals; The length of described wolfram steel sleeve is identical with the length of central lumen and cover all surfaces of central lumen; The junction of described steel pipe inlet hole and central lumen is provided with the step surface I of annular, and steel pipe portals and is provided with the step surface II of annular with the junction of the die sleeve end face at its place.The height of described step surface I equals 0.15 centimetre, and the height of step surface II equals 0.1 centimetre.
The utility model has the advantage of that it can overcome the drawback of prior art, reasonable in design is novel.By at die body nested inside wolfram steel sleeve, add hardness and the abrasion resistance of die body, improve the service life of die body simultaneously.Wolfram steel sleeve wears away to a certain extent after, wolfram steel sleeve can be changed, not need to change whole die body, reduce cost.Steel pipe inlet hole and steel pipe portal and are set to arc, being especially set to parabola shaped, reducing the resistance of steel pipe when entering die body, and make processing more simple, the lower power consumption of extruding steel pipe, saves production cost.The tapering of central lumen 1:3 reduce further the resistance of steel pipe when pressurizeing, thus further reduces energy consumption.
embodiment 2
The difference of the present embodiment and embodiment 1 is: the height of terrace I is 0.12 centimetre, and the height of step surface II is 0.06 centimetre
Certainly, above-mentioned explanation is not to restriction of the present utility model, and the utility model is also not limited to above-mentioned citing; those skilled in the art; in essential scope of the present utility model, the change made, remodeling, interpolation or replacement, all should belong to protection domain of the present utility model.
Claims (2)
1. the seamless steel tube production die sleeve improved, it is characterized in that: comprise columniform die body, the central lumen passed through for steel pipe is provided with in die body, described central lumen is taper, the tapering of central lumen is 1:3, central chamber is nested with wolfram steel sleeve, and the length of wolfram steel sleeve is the half of die body length, being fixedly connected with central lumen by the mode of interference fit of wolfram steel sleeve; The two ends of described central lumen are provided with steel pipe inlet hole and steel pipe portals, and steel pipe inlet hole and the steel pipe longitudinal section of prolonging its axis of portalling is parabola shaped; The diameter of section that described steel pipe inlet hole and steel pipe portal diminishes to central lumen gradually from company's section of die body; The degree of depth of described steel pipe inlet hole is less than the degree of depth that steel pipe portals; The length of described wolfram steel sleeve is identical with the length of central lumen and cover all surfaces of central lumen; The junction of described steel pipe inlet hole and central lumen is provided with the step surface I of annular, and steel pipe portals and is provided with the step surface II of annular with the junction of the die sleeve end face at its place.
2. the seamless steel tube production die sleeve of improvement according to claim 1, is characterized in that: the height of described step surface I is less than or equal to 0.15 centimetre, and the height of step surface II is less than or equal to 0.1 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736990.5U CN204974772U (en) | 2015-09-23 | 2015-09-23 | Modified is die sleeve for seamless steel pipe production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736990.5U CN204974772U (en) | 2015-09-23 | 2015-09-23 | Modified is die sleeve for seamless steel pipe production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204974772U true CN204974772U (en) | 2016-01-20 |
Family
ID=55109192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520736990.5U Expired - Fee Related CN204974772U (en) | 2015-09-23 | 2015-09-23 | Modified is die sleeve for seamless steel pipe production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204974772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425570A (en) * | 2022-03-18 | 2022-05-03 | 浙江三基钢管有限公司 | Cold drawing die |
-
2015
- 2015-09-23 CN CN201520736990.5U patent/CN204974772U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425570A (en) * | 2022-03-18 | 2022-05-03 | 浙江三基钢管有限公司 | Cold drawing die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180923 |