CN202762726U - Production unit for hot-rolled seamless steel tubes - Google Patents
Production unit for hot-rolled seamless steel tubes Download PDFInfo
- Publication number
- CN202762726U CN202762726U CN 201220452136 CN201220452136U CN202762726U CN 202762726 U CN202762726 U CN 202762726U CN 201220452136 CN201220452136 CN 201220452136 CN 201220452136 U CN201220452136 U CN 201220452136U CN 202762726 U CN202762726 U CN 202762726U
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- rolling
- heating furnace
- seamless steel
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Abstract
The utility model relates to a production unit for hot-rolled seamless steel tubes which comprises a tube billet band-sawing machine processing section. An annular heating furnace is connected with a tail end of the tube billet band-sawing machine processing section. A guide outlet of the annular heating furnace is connected with a two-roller skew-rolling pipe rolling mill through a tapered roller puncher. The two-roller skew-rolling tube rolling mill is connected with a cooling bed through a three-roller sizing mill. The other end of the cooling bed is provided with a six-roller straightener and a tube cutting machine. Tube billets are manufactured into finished products through processes of being sawn by a tube billet band-sawing machine, being heated by the annular heating furnace, punching and manufacturing of hollow billets by the tapered roller puncher, rolling of pieced billets by the two-roller skew-rolling tube rolling mill, being sized by the three-roller sizing mill, being cooled by the cooling bed, being straightened by the six-roller straightener, and head and tail cutting by the tube cutting machine. Products manufactured by the production unit for the hot-rolled seamless steel tubes is good in quality, high in geometric dimension precision, good in mechanical property, and wide in variety adaptability.
Description
Technical field
The utility model relates to a kind of seamless steel tube production device, particularly a kind of hot rolled seamless steel tube process units.
Background technology
The production technology of hot rolled seamless steel tube has a variety of, such as plug rolling production technology, pilger mill production technology, three roll pipe production technology, continuous tube rolling production technology etc., although above-mentioned seamless steel tube production technique has Some features separately, eliminate the production technology that falls behind but plug rolling production technology, pilger mill production technology belong to, have the shortcomings such as production efficiency is low, product quality is not high; There is the shortcoming that can not produce light-wall pipe in the three roll pipe production technology; Although tube rolling production technology output is very large continuously, produces and adjust the flexibility deficiency.
The utility model content
The utility model is for the deficiency of traditional hot rolling seamless steel pipe production process, a kind of process units of hot rolled seamless steel tube is provided, and production efficiency height, good product quality, range of product size wide (particularly can rolling thin-wall pipe), specification adjustment be flexibly and production technology two roller oblique milling seamless steel tube production techniques flexibly.
The utility model is by the following technical solutions:
A kind of process units of hot rolled seamless steel tube, comprise pipe band sawing machine processing sections, end and the rotary heating furnace of pipe band sawing machine processing sections join, the export mouth of rotary heating furnace joins by cone type piercer and two roller oblique tube mills, two roller oblique tube mills connect cold bed by three roller sizing mills, and the cold bed other end is provided with six-roller straightener and pipe cutting machine.
Workflow is: the pipe band sawing machine is sawed-off, rotary heating furnace heating, cone type piercer pierce hollow billet, the rolling hollow forging of two roller oblique tube mills, three roller sizing mill sizings, cold bed cooling, six-roller straightener aligning, pipe cutting machine excise end to end.
The effect of band sawing machine saw is: the long tube base is become scale short tube base by the sawing of process stipulation length.Band sawing machine has that sawed-off end face is neat, loss is low, the automaticity high.
The rotary heating furnace effect is: with normal temperature heating of pipe blank to 1230 ℃-1270 ℃, be convenient to follow-up rolling.Annular furnace has that heating-up temperature is even, energy consumption is low, the efficient high.
The cone type piercer effect is: solid pipe is worn into hollow hollow billet.Cone type piercer has the characteristics such as lengthening coefficient is large, and piercing efficiency is high, and the perforation wall thickness is even, quality of hollow billet is good.
Two roller oblique tube mill effects are: hollow billet is proceeded rolloff, hollow billet is subtracted the equal wall of wall, make hollow billet more near production tube.Two roller oblique tube mills have the characteristics such as the coefficient of stretching is large, and wall thickness is even, and steel pipe surfaces externally and internally quality is good, and tools expenditures is little.
Three roller sizing mill effects are: will be rolled into from the tube reducing of milling train the steel pipe of a series of trimmed sizes.It is high that three roller slight stretch sizing mills have product external diameter precision, and production efficiency is high, the steel pipe characteristics such as directly degree is high end to end, the wall thickness amount of swelling is effectively controlled.
The effect of cold bed is: steel pipe behind the sizing is cooled to below 150 ℃, so that the processing of follow-up finishing procedure.
The effect of six-roller straightener is: the defectives such as aligning flexibility of steel pipe and ovality make through the requirement that is up to state standards of the flexibility of steel pipe behind the aligning and ovality.
The effect of pipe cutting machine is: steel pipe head, afterbody excision after will aligning.
The utility model adopts advanced seamless steel tube production device, has the advantages such as product quality is excellent, geometric accuracy is high, good mechanical property, varietal adaptation steel grade scope strong, that produce is wide, small lot batch manufacture is flexible, capital construction investment is little, annual production is moderate, construction speed is fast.
Description of drawings
Fig. 1 is installation drawing of the present utility model.
Among the figure: 1, pipe band sawing machine, 2, rotary heating furnace, 3, cone type piercer, 4, two roller oblique tube mills, 5, three roller sizing mills, 6, cold bed, 7, six-roller straightener, 8, pipe cutting machine.
The specific embodiment
Further specify below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model workflow is: and the pipe band sawing machine is sawed-off → and rotary heating furnace heating → cone type piercer pierces hollow billet → rolling hollow forging of two roller oblique tube mills → three roller sizing mill sizings → cold bed cooling → six-roller straightener aligning → pipe cutting machine and excises end to end.
Device comprises pipe band sawing machine 1 processing sections, end and the rotary heating furnace 2 of pipe band sawing machine 1 processing sections join, the export mouth of rotary heating furnace 2 joins by cone type piercer 3 and two roller oblique tube mills 4, two roller oblique tube mills 4 connect cold bed 6 by three roller sizing mills 5, and cold bed 6 other ends are provided with six-roller straightener 7 and pipe cutting machine 8.
Feed intake according to the production schedule, pipe band sawing machine 1 is by technological requirement sawing blank.
Blank after the sawing is sent in the rotary heating furnace 2, and pipe is sent into heating furnace by propping up subsequently, and when the heating of pipe blank temperature reached 1230 ℃-1270 ℃, pipe was removed, and sent in the cone type piercer 3.
Under the effect of conic perforator 3, solid pipe is worn into hollow hollow billet, then sends in the two roller oblique tube mills 4.
Advanced the rolling of two roller oblique tube mills 4, hollow hollow billet is subtracted wall by tube reducing and is rolled into hollow forging near production tube.
Rolling hollow forging after complete is transported in the three roller sizing mills 5 from the backstage output of pipe mill again;
Through the effect of three roller sizing mills 5, steel pipe is the hot seamless steel pipe that closes symbol product standard diameter and wall thickness;
Hot seamless steel pipe is admitted on the cold bed 6 cooling subsequently, makes below the steel pipe temperature to 150 ℃;
Cooled steel pipe is transported to aligning in the straightener 7 on the cold bed, makes steel pipe linearity, ovality meet standard-required;
Steel pipe behind the aligning through pipe cutting machine 8 cutting head cutting tails, then changes later process over to again.
Claims (1)
1. the process units of a hot rolled seamless steel tube, it is characterized in that, comprise pipe band sawing machine processing sections, end and the rotary heating furnace of pipe band sawing machine processing sections join, the export mouth of rotary heating furnace joins by cone type piercer and two roller oblique tube mills, two roller oblique tube mills connect cold bed by three roller sizing mills, and the cold bed other end is provided with six-roller straightener and pipe cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220452136 CN202762726U (en) | 2012-09-06 | 2012-09-06 | Production unit for hot-rolled seamless steel tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220452136 CN202762726U (en) | 2012-09-06 | 2012-09-06 | Production unit for hot-rolled seamless steel tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202762726U true CN202762726U (en) | 2013-03-06 |
Family
ID=47769330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220452136 Expired - Fee Related CN202762726U (en) | 2012-09-06 | 2012-09-06 | Production unit for hot-rolled seamless steel tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202762726U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814330A (en) * | 2012-09-06 | 2012-12-12 | 济南重工股份有限公司 | Process and device for producing hot-rolled seamless steel pipe |
| CN103978038A (en) * | 2014-05-21 | 2014-08-13 | 攀钢集团成都钢钒有限公司 | Production method of stainless steel seamless steel pipe billet for cold rolling or cold drawing |
| CN104399752A (en) * | 2014-10-15 | 2015-03-11 | 攀钢集团成都钢钒有限公司 | Seamless steel tube production method |
| CN105080970A (en) * | 2015-08-31 | 2015-11-25 | 中冶赛迪工程技术股份有限公司 | Skew rolling equipment and technology for seamless steel tubes |
| CN112474868A (en) * | 2020-10-20 | 2021-03-12 | 鑫鹏源(聊城)智能科技有限公司 | Hot rolling production process for rolling seamless tube with large diameter expansion |
| CN114515940A (en) * | 2022-03-03 | 2022-05-20 | 徐州徐工履带底盘有限公司 | Pin bush manufacturing method and system |
-
2012
- 2012-09-06 CN CN 201220452136 patent/CN202762726U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814330A (en) * | 2012-09-06 | 2012-12-12 | 济南重工股份有限公司 | Process and device for producing hot-rolled seamless steel pipe |
| CN103978038A (en) * | 2014-05-21 | 2014-08-13 | 攀钢集团成都钢钒有限公司 | Production method of stainless steel seamless steel pipe billet for cold rolling or cold drawing |
| CN103978038B (en) * | 2014-05-21 | 2016-06-29 | 攀钢集团成都钢钒有限公司 | A kind of confession is cold rolling or the production method of the stainless-steel seamless pipe pipe of cold-drawn |
| CN104399752A (en) * | 2014-10-15 | 2015-03-11 | 攀钢集团成都钢钒有限公司 | Seamless steel tube production method |
| CN105080970A (en) * | 2015-08-31 | 2015-11-25 | 中冶赛迪工程技术股份有限公司 | Skew rolling equipment and technology for seamless steel tubes |
| CN112474868A (en) * | 2020-10-20 | 2021-03-12 | 鑫鹏源(聊城)智能科技有限公司 | Hot rolling production process for rolling seamless tube with large diameter expansion |
| CN114515940A (en) * | 2022-03-03 | 2022-05-20 | 徐州徐工履带底盘有限公司 | Pin bush manufacturing method and system |
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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: 20130306 Termination date: 20140906 |
|
| EXPY | Termination of patent right or utility model |