CN204307927U - A kind of continuous rolling-tube unit manufactures the plug of seamless steel pipe - Google Patents
A kind of continuous rolling-tube unit manufactures the plug of seamless steel pipe Download PDFInfo
- Publication number
- CN204307927U CN204307927U CN201420769006.0U CN201420769006U CN204307927U CN 204307927 U CN204307927 U CN 204307927U CN 201420769006 U CN201420769006 U CN 201420769006U CN 204307927 U CN204307927 U CN 204307927U
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- China
- Prior art keywords
- plug
- section
- continuous rolling
- tube unit
- active section
- 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 - Fee Related
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Abstract
Continuous rolling-tube unit manufactures a plug for seamless steel pipe, and comprise the active section and throwing steel section that are fixedly connected with, described active section is 10.5 meters, and the length of throwing steel section is 5.25 meters.Compared to the prior art, this plug adopts shorter active section and longer throwing steel section, shortens the active section that cost is higher, the totle drilling cost of whole plug is declined.Meanwhile, total length is constant, does not affect its working effect.
Description
Technical field
The utility model relates to the manufacturing equipment of steel pipe, is specifically related to the plug that a kind of tandem mill pipe group manufactures seamless steel pipe.
Background technology
Plug is the primary deformable instrument in modern continuous rolling-tube unit, and it mainly plays a part to subtract wall and extension in the operation of rolling, selects suitable plug can roll out the steel pipe of desired wall thickness.The consumption of modern continuous rolling-tube unit plug is approximately 1 kilogram/, plug consumption is the maximum difference that continuous rolling-tube unit distinguishes other hot rolled seamless steel tube units, also continuous rolling-tube unit is called " plug milling train " so domestic, its consumption is big at this unit proportion as seen.
In the operation of rolling, plug uses under the working conditions such as high temperature, high pressure, friction, if plug Rigidity and strength is not enough, be very easily distorted distortion and lobe inefficacy, so the length of the active section of plug can not be too short.
Plug is by the different active section of material
With throwing steel section portion composition, the price of active section is higher, and be three times that throw steel section, cost is higher.For H13 hot die steel, plug total length is 15.75 meters, and wherein active section is 11.5 meters, and throwing steel section is 4.25 meters, and cost is higher.
Utility model content
The purpose of this utility model is to provide the plug that a kind of lower-cost continuous rolling-tube unit manufactures seamless steel pipe.
The technical solution of the utility model is specially:
Continuous rolling-tube unit manufactures a plug for seamless steel pipe, and comprise the active section 1 and throwing steel section 2 that are fixedly connected with, described active section 1 is 10.5 meters, and the length of throwing steel section 2 is 5.25 meters.
Described active section 1 welds with being fixedly connected as of throwing steel section 2.
The beneficial effects of the utility model are: compared to the prior art, and this plug adopts shorter active section and longer throwing steel section, shortens the active section that cost is higher, the totle drilling cost of whole plug is declined.Meanwhile, total length is constant, does not affect its working effect.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
Through our company personnel repetition test, active section 1 length of the plug of H13 hot die steel is the shortest is 10.5 meters, and now, the length of throwing steel section 2 is 5.25 meters, as shown in Figure 1.
Active section 1 welds with throwing steel section 2.
The material throwing steel section is 42CrMo quenched and tempered steel.
Prior art is compared, and this plug adopts shorter active section and longer throwing steel section, shortens the active section that cost is higher, the totle drilling cost of whole plug is declined.Meanwhile, total length is constant, does not affect its working effect.
Claims (2)
1. continuous rolling-tube unit manufactures a plug for seamless steel pipe, and comprise the active section (1) and throwing steel section (2) that are fixedly connected with, it is characterized in that: described active section (1) is 10.5 meters, the length of throwing steel section (2) is 5.25 meters.
2. the plug that continuous rolling-tube unit as claimed in claim 1 manufactures seamless steel pipe is characterized in that: described active section (1) welds with being fixedly connected as of throwing steel section (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769006.0U CN204307927U (en) | 2014-12-09 | 2014-12-09 | A kind of continuous rolling-tube unit manufactures the plug of seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769006.0U CN204307927U (en) | 2014-12-09 | 2014-12-09 | A kind of continuous rolling-tube unit manufactures the plug of seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204307927U true CN204307927U (en) | 2015-05-06 |
Family
ID=53130259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420769006.0U Expired - Fee Related CN204307927U (en) | 2014-12-09 | 2014-12-09 | A kind of continuous rolling-tube unit manufactures the plug of seamless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204307927U (en) |
-
2014
- 2014-12-09 CN CN201420769006.0U patent/CN204307927U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150506 Termination date: 20201209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |