CN101091959A - Not isodiametric rollers in use for molding welded steel pipes - Google Patents
Not isodiametric rollers in use for molding welded steel pipes Download PDFInfo
- Publication number
- CN101091959A CN101091959A CN 200610086876 CN200610086876A CN101091959A CN 101091959 A CN101091959 A CN 101091959A CN 200610086876 CN200610086876 CN 200610086876 CN 200610086876 A CN200610086876 A CN 200610086876A CN 101091959 A CN101091959 A CN 101091959A
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- Prior art keywords
- roll
- roller
- pipe
- isodiametric
- welded steel
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- 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
The invention discloses a welded steel pipe molding using diameter-inequality roller that is formed by upper roller and down roller which have the same shape and structure. The roller includes roller identity, roller hole and working concave. The invention could decrease the sliding friction of roller working surface and tube blank to avoid the scratches and improve the quality of the product. It also decreases running resistance of tube blank, and increases driving efficiency, saves electric power and prolongs useful life of roller.
Description
Technical field
What the present invention relates to is a kind of belt steel rolling to be become the roll of welded still pipe, specifically a kind of not isodiametric rollers in use for molding welded steel pipes.
Background technology
With the band steel is that the production method that raw material are produced welded still pipe is: utilize the continuous roll with different size that the pipe belt steel rolling is become the pipe tube, make pipe tube edge reach molten condition through high-frequency heating, become tube product through the extruding seam again.The pipe belt steel rolling becomes the process of pipe tube steel pipe and to be formed by molding roller precisive shaped and sizing through multiple tracks top and bottom rolls rolling.The top and bottom rolls of precisive shaped and sizing is in the operation of rolling, and the working face of roll contacts for whole with the pipe face, and the weak point of whole contact is that roll and pipe face have the position of sliding friction many, easily produces cut, influences steel tube surface quality; Because sliding friction has strengthened the running resistance of pipe, transmission power is increased, waste energy; Sliding friction also can be quickened the wearing and tearing of rolling face, the service life of having reduced roll.
Summary of the invention
In order to solve the deficiencies in the prior art, the purpose of this invention is to provide a kind of not isodiametric rollers in use for molding welded steel pipes that can reduce sliding friction.
Realize that the technical scheme that purpose of the present invention adopts is: this not isometrical roll is made up of corresponding topping roll and bottom roll, and the shape and structure of upper and lower roll is identical; Roll by the roll body, can form with roll hole and concave work surface that roll mandrel is connected; The protruding band protruding slightly with respect to concave surface arranged on the concave work surface, so just can obtain not isodiametric rollers in use for molding welded steel pipes.When the moulding roll was given pipe bobbin base precisive shaped and sizing, pipe has only boss and pipe not to have with the concave work surface of roll had the real of relative motion to contact, and other position is little contact.
The invention has the beneficial effects as follows: because molding welded steel pipes has adopted not isometrical roll, make the working face of roll have only boss and pipe that real the contact arranged, other position is little contact.Thereby alleviated the sliding friction of rolling face and pipe.Because alleviating of sliding friction overcome the cut that the contact of roll large tracts of land produces, and makes the steel tube surface that rolls out smooth, improved the product quality of steel pipe; Alleviate the running resistance of pipe simultaneously, reduced transmission power, saved electric energy; Reduce the wearing and tearing of rolling face, prolonged the service life of roll.
Description of drawings
Fig. 1 is the vertical profile TV structure figure of type not isodiametric rollers in use for molding welded steel pipes of the present invention.
The specific embodiment
In the accompanying drawings, not isodiametric rollers in use for molding welded steel pipes of the present invention, this not isometrical roll is made up of corresponding topping roll and bottom roll, and the shape and structure of upper and lower roll is identical, has only provided the accompanying drawing of bottom roll; Roll 1 by roll body 4, can form with roll hole 5 and concave work surface 2 that roll mandrel is connected; Have on the concave work surface 2 with respect to the protruding of the slight projection of concave surface and be with 3, so just can obtain not isodiametric rollers in use for molding welded steel pipes.Described with respect to concave surface slightly the protruding of projection be with 3, in reality processing just with respect to the tolerance difference of concave surface.When the moulding roll was given pipe bobbin base precisive shaped and sizing, pipe has only boss and pipe not to have with the working face of roll had the real of relative motion to contact, and other position is little contact.Thereby alleviated the sliding friction of rolling face and pipe.Because alleviating of sliding friction overcome the cut that the contact of roll large tracts of land produces, and makes the steel tube surface that rolls out smooth, improved the product quality of steel pipe; Alleviate the running resistance of pipe simultaneously, reduced transmission power, saved electric energy; Reduce the wearing and tearing of rolling face, prolonged the service life of roll.
Claims (1)
1, a kind of not isodiametric rollers in use for molding welded steel pipes, this not isometrical roll is made up of corresponding shape and structure identical topping roll and bottom roll; Roll (1) by roll body (4), can form with roll hole (5) and concave work surface (2) that roll mandrel is connected; It is characterized in that: the protruding band (3) protruding slightly with respect to concave surface arranged on the concave work surface 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610086876 CN101091959A (en) | 2006-06-22 | 2006-06-22 | Not isodiametric rollers in use for molding welded steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610086876 CN101091959A (en) | 2006-06-22 | 2006-06-22 | Not isodiametric rollers in use for molding welded steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101091959A true CN101091959A (en) | 2007-12-26 |
Family
ID=38990496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610086876 Pending CN101091959A (en) | 2006-06-22 | 2006-06-22 | Not isodiametric rollers in use for molding welded steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101091959A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906894A (en) * | 2018-06-29 | 2018-11-30 | 广州凌龙管业科技有限公司 | A kind of hourglass pipe roll control system and method |
| CN111054996A (en) * | 2020-01-06 | 2020-04-24 | 邯郸市永固冶金备件有限公司 | Roll fish scale pattern accurate hole pattern approaching surfacing repair process |
-
2006
- 2006-06-22 CN CN 200610086876 patent/CN101091959A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906894A (en) * | 2018-06-29 | 2018-11-30 | 广州凌龙管业科技有限公司 | A kind of hourglass pipe roll control system and method |
| CN108906894B (en) * | 2018-06-29 | 2020-02-11 | 广州凌龙管业科技有限公司 | Hourglass pipe rolling control system |
| CN111054996A (en) * | 2020-01-06 | 2020-04-24 | 邯郸市永固冶金备件有限公司 | Roll fish scale pattern accurate hole pattern approaching surfacing repair process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20071226 |