CN102172680B - Micro-tension equal-torque metal material straightening method - Google Patents
Micro-tension equal-torque metal material straightening method Download PDFInfo
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- CN102172680B CN102172680B CN201010617455XA CN201010617455A CN102172680B CN 102172680 B CN102172680 B CN 102172680B CN 201010617455X A CN201010617455X A CN 201010617455XA CN 201010617455 A CN201010617455 A CN 201010617455A CN 102172680 B CN102172680 B CN 102172680B
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- Prior art keywords
- metal material
- straightening
- smoothing roll
- torque
- smoothing
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Abstract
The invention provides a micro-tension equal-torque metal material straightening method. In the method, by regulating the linear speeds of all straightening rollers, the liner speeds of the straightening rollers increase gradually in the feeding direction of a metal material under a condition that a metal material straightening process is carried out normally and the torques of the straightening rollers are equal. When the micro-tension equal-torque metal material straightening method provided by the invention is used, the micro-tension and equal-torque straightening of metal materials is realized; therefore, the sudden changes of the torques of the straightening rollers are avoided and the pressure stress and internal stress of the metal materials are avoided, the quality of the metal material is improved, the service life of straightening equipment is prolonged, and the straightening efficiency is improved.
Description
Technical field
The present invention relates to metal material straightening technology field, more particularly, relate to the torque metal material straightening methods such as a kind of Minimal Tension.
Background technology
In traditional metal materials straightening process process, difference due to the recurvation curvature of each point in the continuous beam action of metal material and aligning process, thereby cause the metal material speed of service difference before and after each smoothing roll, thereby cause the aligning moment of torsion generation great variety of each smoothing roll.The aligning moment of torsion of some smoothing rolls can be very large, and the moment of torsion of other smoothing roll again can be very little, and the moment of torsion of even indivedual smoothing rolls can surpass the summation of other smoothing roll aligning moment of torsion, and indivedual smoothing rolls even can produce negative twist and rectify.
Due to above reason, cause traditional metal material straightening process to have the following disadvantages:
1, in metal material aligning process, can make the metal material internal stress produce very large variation, especially produce very disadvantageous compression in the metal material use procedure.When compression is serious, can cause metal material to produce brittle fracture.
2, each smoothing roll torque distribution inequality can have a strong impact on the stress of each smoothing roll, and the equipment project organization of making is very unreasonable, often also can produce heel and toe wear and damage in use procedure, also is unfavorable for energy-conservation simultaneously.
Summary of the invention
Deficiency for the prior art existence, the invention provides a kind of moment of torsion steel rail straightening methods such as Minimal Tension, the method has realized the moments of torsion such as the Minimal Tension aligning to rail, thereby the situation that the moment of torsion of having avoided each smoothing roll is undergone mutation and avoided the generation of compression and the internal stress of rail, and then improve rail quality, extend the life-span of equipment for straightening, and improved aligning efficiency.
The invention provides the torque metal material straightening methods such as a kind of Minimal Tension, described method is by adjusting the linear velocity of each smoothing roll, make in the situation that the metal material straightening process normally carries out the linear velocity of described each smoothing roll along the metal material direct of travel, increases gradually, and guarantee that the moment of torsion of each smoothing roll equates.
According to torque metal material straightening methods such as Minimal Tensions of the present invention, roller footpath size that can be by adjusting each smoothing roll and/or the rotating speed of adjusting each smoothing roll are adjusted the linear velocity of this smoothing roll.
According to torque metal material straightening methods such as Minimal Tensions of the present invention, wherein, the quantity of described smoothing roll can be 4-8.
According to torque metal material straightening methods such as Minimal Tensions of the present invention, wherein, the quantity of described smoothing roll can be 8, when the linear velocity of described 8 smoothing rolls of arranging along the metal material direct of travel is followed successively by v
1, v
2, v
3, v
4, v
5, v
6, v
7And v
8The time, the linear velocity of described 8 smoothing rolls meets: v
1<v
2<v
3<v
4<v
5<v
6<v
7<v
8.
According to torque metal material straightening methods such as Minimal Tensions of the present invention, wherein, described metal material can be rail.
With conventional art, compare, according to the beneficial effect of the torque metal material straightening methods such as Minimal Tension of the present invention be:
(1) can guarantee that metal material inside can not produce the compression harmful to the metal material quality;
(2) because each roller aligning moment of torsion is basically identical, thereby prevented the heel and toe wear of straightener, reduced the maintenance of equipment expense and improve equipment and can start rate.
(3) metal material is more effectively aligned, thereby saved the energy resource consumption in the aligning process.
The accompanying drawing explanation
Fig. 1 schematically shows the torque metal material straightening method such as Minimal Tension according to an exemplary embodiment of the present invention.
The specific embodiment
According to the linear velocity of the torque metal material straightening methods such as Minimal Tension of the present invention by each smoothing roll of adjustment, make in the situation that the metal material straightening process normally carries out the linear velocity of described each smoothing roll along the metal material direct of travel, increases successively, and then based on the continuous beam action of metal material, metal material is inner can produce Minimal Tension, thereby guarantees that the moment of torsion of each smoothing roll is substantially equal.According to torque metal material straightening methods such as Minimal Tensions of the present invention, can avoid the moment of torsion of each smoothing roll to undergo mutation and also can avoid the generation of compression and the internal stress of metal material, thereby can improve the metal material quality, extend the life-span of equipment for straightening, and improved aligning efficiency.
In the method for the invention, roller footpath size that can be by adjusting each smoothing roll and/or the rotating speed of adjusting each smoothing roll are adjusted the linear velocity of each smoothing roll.
In the method for the invention, the quantity of smoothing roll can be 4-8.Specifically, the quantity of smoothing roll can be determined according to specification and the quality requirement thereof of the metal material for the treatment of rolling.
In addition, in the method for the invention, the linear velocity that is 8 and described 8 smoothing rolls that will arrange along the metal material direct of travel when the quantity of described smoothing roll is followed successively by v
1, v
2, v
3, v
4, v
5, v
6, v
7And v
8The time, if the linear velocity of described 8 smoothing rolls meets: v
1<v
2<v
3<v
4<v
5<v
6<v
7<v
8, and then based on the continuous beam action of metal material, metal material is inner can produce Minimal Tension, thereby guarantees that the moment of torsion of each smoothing roll is substantially equal.
Hereinafter, in connection with accompanying drawing, describe exemplary embodiment of the present invention in detail.For clear, can enlarge or dwindle the size of all parts in accompanying drawing.
The subject matter that traditional metal material straightening method exists is: 1, the torque distribution of each smoothing roll is very unreasonable, and the moment of torsion M of some smoothing rolls surpasses closing of total moment of torsion, and some smoothing rolls or even negative torque affect the service life of straightener; When 2, straightener was worked, ambient noise can, up to 110-120dB, have a strong impact on worker's physical and mental health; 3, the rail internal residual stress is large, and especially there is the product quality that has a strong impact on rail in compression.
Embodiment 1
Fig. 1 schematically shows the moment of torsion steel rail straightening method such as Minimal Tension according to an exemplary embodiment of the present invention.As shown in Figure 1, in the present embodiment, steel rail straightening equipment comprises 8 smoothing rolls that the roller footpath is identical, and the rotation direction of each smoothing roll as shown in Figure 1.Rail moves along direction (that is, along direction shown in the double-head arrow shown in Fig. 2) from left to right.Above-mentioned 8 smoothing rolls of arranging along the rail traffic direction are designated as the first smoothing roll, the second smoothing roll, the 3rd smoothing roll, the 4th smoothing roll, the 5th smoothing roll, the 6th smoothing roll, the 7th smoothing roll and the 8th smoothing roll successively, and their speed is designated as v successively
1, v
2, v
3, v
4, v
5, v
6, v
7And v
8.By adjusting the rotating speed of each smoothing roll, make v
1<v
2<v
3<v
4<v
5<v
6<v
7<v
8.
In the moment of torsion steel rail straightening methods such as Minimal Tension according to the present embodiment, because the first moment of torsion to the 8th smoothing roll is substantially equal, thereby the situation that the moment of torsion of having avoided each smoothing roll is undergone mutation and avoided the generation of compression and the internal stress of rail, and then improve rail quality, extend the life-span of equipment for straightening, and improved aligning efficiency.
Although the rail of take has in the above-described embodiments been described the method for aligning of metal material as example, it will be understood by a person skilled in the art that method for aligning of the present invention also can be applicable to other metal material such as steel.
Although the above has described technical conceive of the present invention in conjunction with exemplary embodiment, it will be apparent to those skilled in the art that and can carry out various changes and modifications to above-described embodiment in the situation that do not break away from spirit and scope defined by the claims.
Claims (5)
1. torque metal material straightening methods such as Minimal Tension, it is characterized in that, described method is by adjusting the linear velocity of each smoothing roll, make in the situation that the metal material straightening process normally carries out the linear velocity of described each smoothing roll along the metal material direct of travel, increases gradually, and guarantee that the moment of torsion of each smoothing roll equates.
2. the torque metal material straightening method such as Minimal Tension as claimed in claim 1, is characterized in that, the roller footpath size by adjusting each smoothing roll and/or the rotating speed of adjusting each smoothing roll are adjusted the linear velocity of this smoothing roll.
3. the torque metal material straightening method such as Minimal Tension as claimed in claim 1, is characterized in that, the quantity of described smoothing roll is 4-8.
4. the torque metal material straightening method such as Minimal Tension as claimed in claim 3, is characterized in that, the quantity of described smoothing roll is 8, when the linear velocity of described 8 smoothing rolls of arranging along the metal material direct of travel is followed successively by v
1, v
2, v
3, v
4, v
5, v
6, v
7And v
8The time, the linear velocity of described 8 smoothing rolls meets: v
1<v
2<v
3<v
4<v
5<v
6<v
7<v
8.
5. as torque metal material straightening methods such as the described Minimal Tensions of any one in claim 1 to 4, it is characterized in that, described metal material is rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010617455XA CN102172680B (en) | 2010-12-31 | 2010-12-31 | Micro-tension equal-torque metal material straightening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010617455XA CN102172680B (en) | 2010-12-31 | 2010-12-31 | Micro-tension equal-torque metal material straightening method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102172680A CN102172680A (en) | 2011-09-07 |
| CN102172680B true CN102172680B (en) | 2013-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010617455XA Expired - Fee Related CN102172680B (en) | 2010-12-31 | 2010-12-31 | Micro-tension equal-torque metal material straightening method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102172680B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744296A (en) * | 2012-07-28 | 2012-10-24 | 北京科技大学 | Method for balancing multi-roller straightening torque distribution |
| CN109821933B (en) * | 2019-03-05 | 2020-07-17 | 攀钢集团攀枝花钢钒有限公司 | Method for automatically optimizing straightening interference torque |
| CN113000632A (en) * | 2021-02-25 | 2021-06-22 | 李伦伟 | Leveling device for building material rod piece |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032515U (en) * | 1988-02-16 | 1989-02-15 | 冶金工业部攀枝花钢铁公司钢铁研究院 | Multiple-roll steel straightener |
| CN1034150A (en) * | 1988-01-14 | 1989-07-26 | 杨范文 | A kind of stretcher leveling method and device thereof |
| DE19506224A1 (en) * | 1995-02-22 | 1996-08-29 | Schleicher Gmbh & Co Hermann | Roll straightening device for straightening sheets |
| CN101780481A (en) * | 2009-11-12 | 2010-07-21 | 无锡五冶金属压延有限公司 | Five-roll tensioner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2516409B1 (en) * | 1981-11-13 | 1987-07-17 | Sumitomo Metal Ind | METHOD FOR CORRECTING A LAMINATED MATERIAL |
| JP2502191B2 (en) * | 1990-11-27 | 1996-05-29 | 新日本製鐵株式会社 | Straightening method for coiled steel pipe |
| US20100229614A1 (en) * | 2009-03-15 | 2010-09-16 | Tyl Thomas W | Method to straighten metallic filament |
-
2010
- 2010-12-31 CN CN201010617455XA patent/CN102172680B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034150A (en) * | 1988-01-14 | 1989-07-26 | 杨范文 | A kind of stretcher leveling method and device thereof |
| CN2032515U (en) * | 1988-02-16 | 1989-02-15 | 冶金工业部攀枝花钢铁公司钢铁研究院 | Multiple-roll steel straightener |
| DE19506224A1 (en) * | 1995-02-22 | 1996-08-29 | Schleicher Gmbh & Co Hermann | Roll straightening device for straightening sheets |
| CN101780481A (en) * | 2009-11-12 | 2010-07-21 | 无锡五冶金属压延有限公司 | Five-roll tensioner |
Non-Patent Citations (1)
| Title |
|---|
| JP平4-197525A 1992.07.17 |
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|---|---|
| CN102172680A (en) | 2011-09-07 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 617000, No. 28, Panzhihua Avenue, Sichuan, Panzhihua, China Applicant after: Pan'gang Group Engineering Technology Co., Ltd. Co-applicant after: Pangang Group Steel Vanadium & Titanium Co., Ltd. Co-applicant after: Panzhihua Weichuang Technology Development Co., Ltd. Address before: 617000 No. 28, East Panzhihua Road, Sichuan, Panzhihua Applicant before: Pangang Group Metallugical Engineering Technology Co., Ltd. Co-applicant before: Pangang Group Steel Vanadium & Titanium Co., Ltd. Co-applicant before: Panzhihua Weichuang Technology Development Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: PANGANG GROUP METALLUGICAL ENGINEERING TECHNOLOGY CO., LTD. TO: PAN'GANG GROUP ENGINEERING TECHNOLOGY CO., LTD. |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20191231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |