CN204035188U - Piercing mill of seamless steel tube - Google Patents
Piercing mill of seamless steel tube Download PDFInfo
- Publication number
- CN204035188U CN204035188U CN201420537641.6U CN201420537641U CN204035188U CN 204035188 U CN204035188 U CN 204035188U CN 201420537641 U CN201420537641 U CN 201420537641U CN 204035188 U CN204035188 U CN 204035188U
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- Prior art keywords
- roll
- guide plate
- seamless steel
- paired
- steel tube
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- Expired - Fee Related
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Abstract
The utility model relates to piercing mill of seamless steel tube, comprise roll, guide plate and top, roll is two barrel-type rollers of top-bottom layout, and two roll mandrels are different surface beeline to place straight line, two guide plates are distributed in into breaker roll both sides, between one-tenth breaker roll and paired guide plate, form specific pass, top is arranged in this specific pass; Roll includes prostomum, and guide plate comprises guide plate entrance, and approach cone angle is 2.5 ~ 3.5 °, and guide plate inlet angle is 4 ~ 5 °, and guide plate center line and roll larynx footpath spacing are 45 ~ 55mm, and coming directly towards equal wall cone offset angle is 0.8 ~ 1.3 °.This piercing mill of seamless steel tube, optimize roll, guide plate and plug designing, metal flow resistance when can reduce perforation, extend and come directly towards service life, hollow billet is shown bright and clean, avoid spiral inner wall road defect, and adopt the design, the hollow billet length obtained of boring a hole can reach about 13m, and longer hollow billet can reduce subsequent handling workload.
Description
Technical field
The utility model relates to steel pipe and manufactures field, particularly improves the piercing mill of seamless steel tube of roll, guide plate and top.
Background technology
Piercing mill of seamless steel tube is that steel pipe manufactures the important equipment in field, and its function is to bore a hole vertically to the cylindrical pipe of heating, and the pipe after perforation forms hollow billet, and hollow billet obtains qualified seamless steel pipe after the operations such as follow-up rolling shaping.
The vitals of punch comprises roll, guide plate and top, and wherein roll is a pair barrel-type roller of top-bottom layout, and two roll mandrels are interlaced different surface beeline to the straight line at place, and described roll includes prostomum, roll rolled bands and goes out prostomum; A pair guide plate is distributed in the perpendicular both sides through two rolls, and guide plate comprises guide plate entrance, guide plate rolled bands and horn exit.Between paired roll and paired guide plate, form the rolling groove of seamless steel pipe, be provided with the top for pipe perforation in this rolling groove centre position.
When roller rotational, approach cone is responsible for pipe of nipping, and the barrel shaped roll of staggered layout rotarily drives pipe and advances along the axis of pipe.When pipe is by the rolling pass, its inside is come directly towards forces perforation, simultaneously rolled pass extruding outside pipe, and pipe, under the tripartite of roll, guide plate and top coordinates squeezing action, plastic deformation occurs, and forms hollow billet.
But existing piercing mill of seamless steel tube design, during pipe distortion, metal flow resistance is comparatively large, cause coming directly towards Fast Wearing, and the defect such as wall unevenness, spiral inner wall road usually appears in the hollow billet obtained, and the hollow billet length obtained of boring a hole also can only reach about 11m.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of piercing mill of seamless steel tube, optimizes roll, guide plate and plug designing, and metal flow resistance when can reduce perforation, improves quality of hollow billet, avoid spiral inner wall road defect.
The utility model solves the technical scheme that its technical problem adopts:
Piercing mill of seamless steel tube, comprise top, paired roll and paired guide plate, paired described roll is two barrel-type rollers of top-bottom layout, and paired two roll mandrels are interlaced different surface beeline to the straight line at place, paired described guide plate is between two rolls of top-bottom layout, and between paired roll and paired guide plate, forming the rolling groove of seamless steel pipe, described top is arranged in this rolling groove; Described roll includes prostomum, described guide plate comprises guide plate entrance, described approach cone angle is a1, a1 is 2.5 ~ 3.5 °, described guide plate inlet angle is a3, a3 is 4 ~ 5 °, and described guide plate center line and roll larynx footpath spacing are L1, L1 is 45 ~ 55mm, and described top equal wall cone offset angle is 0.8 ~ 1.3 °.
Further, described roll nip angle is 8.5 °, and roll rolling angle is 3 °.
Further, regrate coefficient is 3 ~ 4.
Further, described a1 is 3 °, and described a3 is 4.5 °, and described L1 is 50mm, and described top equal wall cone offset angle is 1 °.
The beneficial effects of the utility model are: this piercing mill of seamless steel tube, optimize roll, guide plate and plug designing, metal flow resistance when can reduce perforation, extend and come directly towards service life, hollow billet is shown bright and clean, avoid spiral inner wall road defect, and adopt the design, the hollow billet length obtained of boring a hole can reach about 13m, and longer hollow billet can reduce subsequent handling workload.
Accompanying drawing explanation
Fig. 1 be the roll of a kind of embodiment of piercing mill of seamless steel tube of the present utility model, guide plate and top perforation time schematic diagram;
Fig. 2 is the schematic diagram of piercing mill of seamless steel tube rolling groove place of the present utility model along top axis;
In figure, Reference numeral is: 1-roll, 11-approach cone, 12-go out prostomum, 13-roll rolled bands, 2-guide plate, 21-guide plate entrance, 22-horn exit, 23-guide plate rolled bands, 3-top, 51-pipe, 52-hollow billet, 6-rolling groove.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Piercing mill of seamless steel tube, comprise top 3, paired roll 1 and paired guide plate 2, paired described roll 1 is two barrel-type rollers of top-bottom layout, and the straight line at paired two axial places of roll 1 is interlaced different surface beeline, paired described guide plate 2 is between two rolls 1 of top-bottom layout, and between paired roll 1 and paired guide plate 2, forming the rolling groove 6 of seamless steel pipe, described top 3 is arranged in described rolling groove 6; Described roll 1 includes prostomum 11, described guide plate 2 comprises guide plate entrance 21, described approach cone 11 angle is a1, a1 is 2.5 ~ 3.5 °, described guide plate entrance 21 angle is a3, a3 is 4 ~ 5 °, and described guide plate center line and roll larynx footpath spacing are L1, L1 is 45 ~ 55 mm, and described top 3 all wall cone offset angle is 0.8 ~ 1.3 °.
As shown in Figure 1: the roll 1 of rotation is nipped at approach cone 11 place columniform pipe 51, and drive pipe 51 to move through rolling groove 6 between roll 1 guide plate 2 from right to left.This rolling groove 6 pairs of hollow billet 52 outer walls extrude, and come directly towards 3 pairs of hollow billet 52 inwalls simultaneously and carry out extruding formation perforation, pipe generation plastic deformation finally obtains hollow billet 52.
Adopt design of the present utility model, be conducive to accelerating metal flow rates when pipe 51 is out of shape, come directly towards resistance in perforation procedure and diminish, hollow billet 52 quality can be improved, prevent spiral inner wall road defect, be conducive to improving hollow billet 52 length simultaneously.
Preferredly be designed to, described a1 is 3 °, and described a3 is 4.5 °, and described L1 is 50mm, and described top 3 all wall cone offset angle is 1 °.Adopt the hollow billet any surface finish that above-mentioned embodiment is produced, without spiral inner wall road defect, and hollow billet length can reach 13m, and longer hollow billet length is conducive to reducing subsequent handling workload and improving the quality of products.
Further, the design can be described roll nip angle is 8.5 °, and roll rolling angle is 3 °, can take into account rolling efficiency and the pipe bite condition of perforation process.
Preferably, can also increase regrate coefficient by extending top equal wall cone length, blank is repeatedly processed in equal wall cone section, and improve hollow billet surface quality further, regrate coefficient can be 3 ~ 4.
Claims (4)
1. piercing mill of seamless steel tube, comprise top (3), paired roll (1) and paired guide plate (2), two barrel-type rollers that paired described roll (1) is top-bottom layout, and the straight line at paired two axial places of roll (1) is interlaced different surface beeline, paired described guide plate (2) is positioned between two rolls (1) of top-bottom layout, and between paired roll (1) and paired guide plate (2), form the rolling groove (6) of seamless steel pipe, described top (3) is arranged in described rolling groove (6), described roll (1) includes prostomum (11), described guide plate (2) comprises guide plate entrance (21), it is characterized in that, described approach cone (11) angle is a1, a1 is 2.5 ~ 3.5 °, and described guide plate entrance (21) angle is a3, a3 is 4 ~ 5 °, described guide plate center line and roll larynx footpath spacing are L1, L1 is 45 ~ 55mm, and described top (3) all wall cone offset angle are 0.8 ~ 1.3 °.
2. piercing mill of seamless steel tube as claimed in claim 1, it is characterized in that, described roll nip angle is 8.5 °, and roll rolling angle is 3 °.
3. piercing mill of seamless steel tube as claimed in claim 1, it is characterized in that, regrate coefficient is 3 ~ 4.
4. piercing mill of seamless steel tube as claimed in claim 1, it is characterized in that, described a1 is 3 °, and described a3 is 4.5 °, and described L1 is 50mm, and described top (3) all wall cone offset angle are 1 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537641.6U CN204035188U (en) | 2014-09-18 | 2014-09-18 | Piercing mill of seamless steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537641.6U CN204035188U (en) | 2014-09-18 | 2014-09-18 | Piercing mill of seamless steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204035188U true CN204035188U (en) | 2014-12-24 |
Family
ID=52235898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420537641.6U Expired - Fee Related CN204035188U (en) | 2014-09-18 | 2014-09-18 | Piercing mill of seamless steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204035188U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499274A (en) * | 2015-12-17 | 2016-04-20 | 天津钢管集团股份有限公司 | Adjustment method for replacement process for plugs of conical piercing machine |
| CN108080418A (en) * | 2017-12-26 | 2018-05-29 | 太原重型机械集团工程技术研发有限公司 | For the antioxidant spray coating device and technique in seamless steel tube production |
| CN108580565A (en) * | 2018-04-09 | 2018-09-28 | 北京科技大学 | A kind of design method of Mannesmann piercing machine low energy consumption guide plate |
| CN109092909A (en) * | 2018-08-13 | 2018-12-28 | 林州凤宝管业有限公司 | Spiral shell and the process of speed-raising inside and outside a kind of elimination double ruler of thin-wall tube |
| CN114393042A (en) * | 2022-03-01 | 2022-04-26 | 聊城市科环新材料科技有限公司 | Roller, uniform penetrating machine and system for producing titanium alloy TC4 seamless tube |
-
2014
- 2014-09-18 CN CN201420537641.6U patent/CN204035188U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499274A (en) * | 2015-12-17 | 2016-04-20 | 天津钢管集团股份有限公司 | Adjustment method for replacement process for plugs of conical piercing machine |
| CN105499274B (en) * | 2015-12-17 | 2017-05-24 | 天津钢管集团股份有限公司 | Adjustment method for replacement process for plugs of conical piercing machine |
| CN108080418A (en) * | 2017-12-26 | 2018-05-29 | 太原重型机械集团工程技术研发有限公司 | For the antioxidant spray coating device and technique in seamless steel tube production |
| CN108580565A (en) * | 2018-04-09 | 2018-09-28 | 北京科技大学 | A kind of design method of Mannesmann piercing machine low energy consumption guide plate |
| CN109092909A (en) * | 2018-08-13 | 2018-12-28 | 林州凤宝管业有限公司 | Spiral shell and the process of speed-raising inside and outside a kind of elimination double ruler of thin-wall tube |
| CN114393042A (en) * | 2022-03-01 | 2022-04-26 | 聊城市科环新材料科技有限公司 | Roller, uniform penetrating machine and system for producing titanium alloy TC4 seamless tube |
| CN114393042B (en) * | 2022-03-01 | 2024-04-26 | 聊城市科环新材料科技有限公司 | Roller, penetrating and unifying machine and system for producing titanium alloy TC4 seamless tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160805 Address after: 610000 Sichuan Chengdu bull market mouth Patentee after: Chengdu Panxi Steel Metallurgy Engineering Technology Co., Ltd. Address before: 610303 Qingbaijiang District, Sichuan, Chengdu Province, South Road, Pangang Group, Chengdu steel vanadium Co., Ltd. Patentee before: Pangang Group Chengdu Steel & Vanadium Co., Ltd. |
|
| 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: 20141224 Termination date: 20170918 |