CN109530486B - F shaped steel roll formula low temperature orthotic devices - Google Patents
F shaped steel roll formula low temperature orthotic devices Download PDFInfo
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- CN109530486B CN109530486B CN201910005328.5A CN201910005328A CN109530486B CN 109530486 B CN109530486 B CN 109530486B CN 201910005328 A CN201910005328 A CN 201910005328A CN 109530486 B CN109530486 B CN 109530486B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Shaping Of Tube Ends By Bending Or Straightening (AREA)
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Abstract
The application provides an F-shaped steel rolling type low-temperature correcting device, which comprises: the upper correcting part is used for correcting the web plate of the F-shaped portal channel steel and the flanges of the second leg; the lower correcting part is positioned below the upper correcting part and is used for correcting the web plate of the F-shaped portal channel steel and the first leg flange; the lower correcting part comprises a lower frame, a sleeve and a lower correcting roller; the tail flange correcting part is connected to the lower correcting part and is used for correcting the tail flange of the F-shaped portal channel steel; according to the F-shaped steel rolling type low-temperature correcting device, the upper correcting roller, the upper flange roller, the lower flange roller, the side correcting roller and the lower correcting roller form a space matched with the shape of the F-shaped portal channel steel, so that the F-shaped channel steel is driven by the lower correcting roller to slide forward smoothly, and simultaneously, the web plate, the tail flange, the first leg flange and the second leg flange of the F-shaped channel steel are corrected.
Description
Technical Field
The application belongs to the field of shaping of special-shaped steel, and particularly relates to an F-shaped steel rolling type low-temperature correcting device.
Background
The magnetic suspension train is the direction of the development of the future high-speed traffic, has the advantages of high speed, low energy consumption, low pollution and the like, and in a magnetic suspension train operation system, a roller way made of F-shaped steel is an important part and is also the most difficult part to process; the F-shaped steel is used as the deformed steel, the rolling force applied in the rolling process is uneven, the stress generated in the cooling process is uneven, and after the F-shaped steel passes through a thermal straightener, the F-shaped steel is easy to generate cooling deformation in the rolling direction due to uneven and incomplete stress elimination, so that the use of the next working procedure is affected; at present, no special F steel low-temperature correction device exists, and only a jack is used for correction in the past, but the accuracy of the correction mode is not high, and secondary damage is easily caused to steel.
Accordingly, there is a need to provide an F-section rolling cryogenically corrected device that addresses the deficiencies of the prior art described above.
Disclosure of Invention
The application aims to provide an F-shaped steel rolling type low-temperature correcting device, which at least solves the problems of high correcting difficulty and low correcting precision when correcting special-shaped steel at present.
In order to achieve the above object, the present application provides the following technical solutions:
an F shaped steel roll formula low temperature orthotic devices, F portal channel-section steel comprises afterbody edge of a wing, web, first leg portion edge of a wing and second shank edge of a wing, orthotic devices includes:
the upper correcting part is used for correcting the web plate of the F-shaped portal channel steel and the flanges of the second leg; the upper correcting part comprises an upper frame, an upper correcting roller and a side correcting roller; the upper correcting roller and the side correcting roller are arranged on the upper frame;
a lower correction portion located below the upper correction portion; the correction device is used for correcting the web plate and the first leg flange of the F-shaped portal channel steel; the lower correcting part comprises a lower frame, a sleeve and a lower correcting roller; the lower correcting roller is arranged in the lower frame; the sleeve is connected to the lower frame;
the tail flange correcting part is connected to the lower correcting part and is used for correcting the tail flange of the F-shaped portal channel steel; the tail flange correcting part comprises a left frame, an upper flange roller and a lower flange roller; the upper flange roller and the lower flange roller are arranged in the left frame.
In the above-mentioned F-shaped steel rolling low-temperature correction device, preferably, the cross section of the upper frame is V-shaped, the upper end surface of the upper frame is provided with a rectangular groove, a row of upper correction rollers are arranged in the rectangular groove, a row of side correction rollers are arranged on the right side surface of the upper frame, and a connecting column is arranged in the center of the junction of two surfaces of the upper frame and used for supporting the upper frame;
preferably, the number of the upper correcting rollers is four;
still preferably, the number of the side correcting rollers is five.
According to the F-shaped steel rolling type low-temperature correcting device, preferably, the upper correcting part further comprises a telescopic rod, the upper end of the telescopic rod is connected with the right end of the connecting column, and the lower end of the telescopic rod extends into the sleeve to form a sliding pair capable of sliding up and down.
In the above-mentioned F-shaped steel rolling type low-temperature correcting device, preferably, the cross section of the left frame is F-shaped, and the left frame includes a first laminate, a second laminate and a riser; the lower end of the vertical plate is connected to the lower frame, the left end of the first layer plate and the left end of the second layer plate are both connected to the right side surface of the vertical plate, the second layer plate is positioned below the first layer plate, and the first layer plate and the second layer plate are both vertical to the vertical plate; the first layer plate is provided with an upper flange roller, and the second layer plate is provided with a lower flange roller;
preferably, the distance between the first and second plies is greater than the outer diameter of the upper flange roll.
The above-mentioned F-shaped steel rolling type low-temperature correcting device, preferably, the lower correcting roller comprises a roller shaft, a transition part and a roller body; the outer diameter of the roller body is larger than that of the transition part, and the outer diameter of the transition part is larger than that of the roller shaft.
In the above-mentioned F-shaped steel rolling type low-temperature correction device, preferably, a first leg flange groove is formed in the circumferential direction of the lower correction roller; the section of the first leg flange groove is trapezoid; the width of the first leg flange slot gradually decreases as the depth of the first leg flange slot increases; a chamfer is arranged between the roller body and the transition part, and the roller shaft is arranged in the through hole of the lower frame;
preferably, the number of the lower straightening rollers is three, and the axes of two adjacent lower straightening rollers are parallel;
still more preferably, the chamfer angle is 30 to 60 °.
In the rolling type low-temperature correcting device for the F-shaped steel, preferably, the distance between the upper correcting roller and the lower correcting roller is equal to the thickness of the steel web plate of the F-shaped portal groove.
In the rolling type low-temperature correcting device for the F-shaped steel, preferably, the distance between the side correcting roller and the chamfer is equal to the thickness of the second leg flange of the channel steel of the F-shaped portal.
Compared with the closest prior art, the technical scheme provided by the application has the following excellent effects:
according to the F-shaped steel rolling type low-temperature correcting device, the upper correcting roller, the upper flange roller, the lower flange roller, the side correcting roller and the lower correcting roller form a space matched with the shape of the F-shaped portal channel steel, so that the F-shaped channel steel is driven by the lower correcting roller to slide forward smoothly, and simultaneously, the web plate, the tail flange, the first leg flange and the second leg flange of the F-shaped channel steel are corrected; the F-shaped steel rolling type low-temperature correcting device reduces the correcting difficulty of special-shaped steel pieces, improves the correcting efficiency and correcting precision, reduces manpower and saves cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. Wherein:
FIG. 1 is an isometric view of an F-section steel rolling type low temperature orthotic device embodying the present application;
FIG. 2 is a front view of an F-section rolling type low temperature correction device according to the present application;
FIG. 3 is a schematic structural view of an upper frame of an F-type steel rolling type low temperature correcting device according to the present application;
FIG. 4 is a schematic view of the structure of a lower leveling roll of the F-steel rolling type low temperature leveling device according to the present application;
fig. 5 is a schematic structural view of an F-section steel embodying the present application.
In the figure: 1. an upper frame; 2. a left frame; 11, correcting rollers; 12. a side straightening roller; 13. a telescopic rod; 14. a connecting column; 21. an upper flange roller; 22. a lower flange roller; 23. a first laminate; 24. a second laminate; 25. a vertical plate; 31. a lower frame; 32. a lower leveling roller; 33. a sleeve; 321. a roll shaft; 322. a transition section; 323. a roller body; 41. tail flange; 42. a web; 43. a first leg flange; 44. and a second leg flange.
Detailed Description
The application will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
In the description of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present application and do not require that the present application must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
According to a specific embodiment of the application, as shown in fig. 1, an isometric view of the F-shaped portal channel of the application is shown; the lower leveling rollers 32 are connected with a driving motor, and each lower leveling roller 32 is connected with the shaft of the motor through a connecting shaft flange, and three lower leveling rollers 32 are arranged. The number of the upper correcting rollers 11 is two; the upper leveling rollers 11 are located above the lower leveling rollers 32; the side leveling rollers 12 are positioned on the right side of the upper leveling rollers 11; the F-shaped portal channel steel belongs to a special shape, when the F-shaped portal channel steel is corrected, a web 42 of the F-shaped portal channel steel is placed in parallel with a horizontal plane, each correction roller of the correction device forms a space matched with the F-shaped portal channel steel, and the F-shaped portal channel steel is placed in the correction device; the tail flange 41 of the F-shaped portal channel is positioned between the upper flange roller 21 and the lower flange roller 22, and the upper flange roller 21 and the lower flange roller 22 jointly rectify the tail flange 41 of the F-shaped portal channel. The web 42 of the F-portal channel is located between the upper leveling roll 11 and the lower leveling roll 32. The first leg flange 43 of the F-shaped portal channel is positioned in the groove of the lower leveling roll 32, and the second leg flange 44 of the F-shaped portal channel is positioned between the side leveling roll 12 and the chamfer of the lower leveling roll 32; because the lower leveling roller 32 is a driving roller, the F-shaped portal channel steel can move forwards under the driving of the rolling of the lower leveling roller 32, and can drive the upper flange roller 21, the lower flange roller 22, the upper leveling roller 11 and the side leveling roller 12 to rotate together while moving; the height between the upper leveling roll 11 and the side leveling roll 12, and the height between the upper flange roll 21 and the lower flange roll 22 may be changed as long as the vertical separation between the upper leveling section and the lower leveling section is changed.
According to the embodiment of the application, as shown in fig. 2, which is a front view of the rolling type low-temperature correcting device for the F-shaped steel, as can be seen from the figure, an upper correcting roller 11 and a side correcting roller 12 are both positioned on an upper frame 1, and a telescopic rod 13 is further arranged on the upper frame 1; the telescopic rod 13 is connected in a sleeve 33, the sleeve 33 is fixed on the lower frame 31, and the lower frame 31 is also provided with an upper flange roller 21, a lower flange roller 22 and a lower correction roller 32; when the upper correcting portion moves downward, the telescopic rod 13 is retracted into the sleeve 33. The distance between the upper leveling roll 11 and the lower leveling roll 32 decreases and the web 42 of the F-portal channel becomes thinner and the height of the first leg flange 43 becomes lower. The distance between the side straightening roll 12 and the lower straightening roll 32 is also reduced and the second leg flange 44 of the F-shaped portal channel becomes thinner.
According to an embodiment of the present application, as shown in fig. 3, a schematic structural diagram of an upper frame 1 of the rolling type low temperature correcting device for F-shaped steel according to the present application is shown, wherein a telescopic rod 13 is arranged on the upper frame 1, and a telescopic structure is formed by the telescopic rod and a sleeve 33 arranged on a lower frame 31, so that a distance between an upper correcting portion and a lower correcting portion can be changed; as shown in fig. 4, the lower leveling roll 32 of the rolling type low temperature leveling device for F-section steel according to the present application is schematically configured, and the chamfer angle between the roll body 323 of the lower leveling roll 32 and the transition portion 322 determines the shape of the second leg flange 44 of the F-section steel.
According to an embodiment of the application, an F-shaped steel rolling type low-temperature correcting device comprises an F-shaped portal channel steel, a tail flange 41, a web 42, a first leg flange 43 and a second leg flange 44. The orthotic device comprises:
and an upper correction portion for correcting the web 42 and the second leg flanges 44 of the F-portal channel. The upper leveling part includes an upper frame 1, an upper leveling roller 11, and a side leveling roller 12. The upper leveling rollers 11 and the side leveling rollers 12 are provided on the upper frame 1.
And the lower correcting part is positioned below the upper correcting part. For straightening the web 42 and second leg flanges 44 of the F-portal channel. The lower correcting portion includes a lower frame 31, a sleeve 33, and a lower correcting roller 32. The lower correcting roller 32 is provided in the lower frame 31. The sleeve 33 is attached to the lower frame 31.
And the tail flange correcting part is connected to the lower correcting part and is used for correcting the tail flange 41 of the F-shaped portal channel steel. The tail flange correcting portion includes a lower frame 31, an upper flange roller 21, and a lower flange roller 22. The upper flange roller 21 and the lower flange roller 22 are provided in the lower frame 31. According to the specific embodiment of the application, the cross section of the upper frame 1 is V-shaped, the upper end surface of the upper frame 1 is provided with a rectangular groove, a row of upper correction rollers 11 are arranged in the rectangular groove, a row of side correction rollers 12 are arranged on the right side surface of the upper frame 1, and a connecting column 14 is arranged in the center of the junction of the two surfaces of the upper frame 1 and used for supporting the upper frame 1. Preferably, the number of upper leveling rolls 11 is four. Still preferably, there are five side straightening rollers 12.
According to the embodiment of the application, the upper correcting part further comprises a telescopic rod 13, the upper end of the telescopic rod 13 is connected with the right end of the connecting column 14, and the lower end of the telescopic rod 13 extends into the sleeve 33 to form a sliding pair which slides up and down.
According to an embodiment of the present application, the left frame 2 has an F-shaped cross section, and the left frame 2 includes a first plate 23, a second plate 24, and a riser 25. The lower extreme of riser 25 is connected on lower frame 31, and the left end of first plywood 23 and the left end of second plywood 24 are all connected at the right flank of riser 25, and second plywood 24 is located first plywood 23 below, and first plywood 23 and second plywood 24 even riser 25 are perpendicular. The first plate 23 is provided with an upper flange roller 21, and the second plate 24 is provided with a lower flange roller 22.
Preferably, the distance between the first ply 23 and the second ply 24 is greater than the outer diameter of the upper flange roll 21.
According to an embodiment of the present application, the lower leveling roll 32 includes a roll shaft 321, a transition portion 322, and a roll body 323. The outer diameter of the roller body 323 is larger than the outer diameter of the transition portion 322, and the outer diameter of the transition portion 322 is larger than the outer diameter of the roller shaft 321.
According to an embodiment of the present application, the lower leveling roll 32 is slotted circumferentially with a first leg flange 43. The first leg flange 43 slot has a trapezoidal cross section. The width of the first leg flange 43 groove gradually decreases as the depth of the first leg flange 43 groove increases. A chamfer is provided between the roller body 323 and the transition portion 322, and the roller shaft 321 is provided in the through hole of the lower frame 31.
Preferably, there are three lower leveling rollers 32 in number, and the axes of two lower leveling rollers 32 are parallel. Still more preferably, the chamfer angle is 30-60 ° (e.g., 35 °, 38 °, 40 °, 42 °, 46 °, 50 °, 52 °, 55 °, 58 °).
According to an embodiment of the application, the distance between the upper leveling roll 11 and the lower leveling roll 32 is equal to the thickness of the steel web 42 of the F-portal channel. The distance between the side straightening roll 12 and the chamfer is equal to the thickness of the second leg flange 44 of the F-portal channel.
Besides, the application also provides the operation steps of the device:
in the first step, the lower leveling rolls 32, the upper flange rolls 21, and the lower flange rolls 22 are mounted on the lower frame 31.
Second, the upper leveling rolls 11 and the side leveling rolls 12 are installed on the upper frame 1, and are installed on the lower frame 31 through the upper telescopic rods 13, and the distance is adjusted.
Step three, in operation, the workpiece passes through the straightening frame, the lower straightening roll 32 straightens the first leg flange 43 of the rolled piece, the side straightening roll 12 straightens the inclined leg flange (namely, the second leg flange 44) at the outer side, so that the workpiece is straightened to be in lateral bending deformation, and the upper straightening roll 11, the upper flange roll 21 and the lower flange roll 22 straighten the web 42 and the tail flange 41 of the workpiece, so that the web 42 of the workpiece is straightened to be in rolling deformation.
The F-shaped steel rolling type low-temperature correcting device provided by the application has the following advantages:
1. the F-shaped steel rolling type low-temperature correction device provided by the application is flexible to install.
2. The F-shaped steel rolling type low-temperature correction device provided by the application has high correction precision.
3. The F-shaped steel rolling type low-temperature correction device provided by the application has high working efficiency.
In summary, the F-shaped steel rolling type low-temperature correcting device provided by the application forms a space matched with the shape of the F-shaped portal channel steel through the upper correcting roller 11, the upper flange roller 21, the lower flange roller 22, the side correcting roller 12 and the lower correcting roller 32, so that the web 42, the tail flange 41, the first leg flange 43 and the second leg flange 44 of the F-shaped channel steel are corrected while the F-shaped channel steel slides forward smoothly under the drive of the lower correcting roller 32; the F-shaped steel rolling type low-temperature correcting device reduces the correcting difficulty of special-shaped steel pieces, improves the correcting efficiency and correcting precision, reduces manpower and saves cost.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. F shaped steel roll formula low temperature orthotic devices, F portal channel-section steel comprises afterbody edge of a wing, web, first leg portion edge of a wing and second shank edge of a wing, its characterized in that, orthotic devices includes:
the upper correcting part is used for correcting the web plate of the F-shaped portal channel steel and the flanges of the second leg; the upper correcting part comprises an upper frame, an upper correcting roller and a side correcting roller; the upper correcting roller and the side correcting roller are arranged on the upper frame;
a lower correction portion located below the upper correction portion; the correction device is used for correcting the web plate and the first leg flange of the F-shaped portal channel steel; the lower correcting part comprises a lower frame, a sleeve and a lower correcting roller; the lower correcting roller is arranged in the lower frame; the sleeve is connected to the lower frame;
the tail flange correcting part is connected to the lower correcting part and is used for correcting the tail flange of the F-shaped portal channel steel; the tail flange correcting part comprises a left frame, an upper flange roller and a lower flange roller; the upper flange roller and the lower flange roller are arranged in the left frame;
the cross section of the upper frame is V-shaped, a rectangular groove is formed in the upper end face of the upper frame, a row of upper correction rollers are arranged in the rectangular groove, a row of side correction rollers are arranged on the right side face of the upper frame, and a connecting column is arranged in the center of the junction of the two faces of the upper frame and used for supporting the upper frame;
the section of the left frame is F-shaped, and the left frame comprises a first layer plate, a second layer plate and a vertical plate; the lower end of the vertical plate is connected to the lower frame, the left end of the first layer plate and the left end of the second layer plate are both connected to the right side surface of the vertical plate, the second layer plate is positioned below the first layer plate, and the first layer plate and the second layer plate are both vertical to the vertical plate; the first layer plate is provided with an upper flange roller, and the second layer plate is provided with a lower flange roller.
2. An F-section rolling cryogenic rectification system as recited in claim 1, wherein said upper rectification rolls are four in number; the number of the side straightening rollers is five.
3. The F-section rolling type low temperature correcting device according to claim 1, wherein the upper correcting portion further comprises a telescopic rod, the upper end of the telescopic rod is connected with the right end of the connecting column, and the lower end of the telescopic rod extends into the sleeve to form a sliding pair which slides up and down.
4. An F-section rolling cryogenically corrective device as defined in claim 1 wherein the distance between said first and second laminates is greater than the outer diameter of said upper flange roll.
5. The F-section rolling cryogenic rectification system of claim 1 wherein said lower rectification roll comprises a roll shaft, a transition portion and a roll body; the outer diameter of the roller body is larger than that of the transition part, and the outer diameter of the transition part is larger than that of the roller shaft.
6. The rolling type low temperature correcting device for F-shaped steel according to claim 5, wherein the lower correcting roller is provided with a first leg flange groove in the circumferential direction; the section of the first leg flange groove is trapezoid; the width of the first leg flange slot gradually decreases as the depth of the first leg flange slot increases; and a chamfer is arranged between the roller body and the transition part, and the roller shaft is arranged in the through hole of the lower frame.
7. An F-section rolling type low temperature correcting device as claimed in claim 6, wherein the number of said lower correcting rollers is three, and the axes of two adjacent lower correcting rollers are parallel.
8. An F-shaped steel rolling type low temperature correcting device as claimed in claim 6, wherein,
the chamfer angle is 30-60 degrees.
9. An F-section rolling cryogenically corrected device according to claim 1 wherein the distance between the upper and lower correction rollers is equal to the thickness of the steel web of the F-portal channel.
10. An F-profile rolling cryogenically corrective device as defined in claim 6 wherein the distance between said side corrective rollers and said chamfer is equal to the thickness of the second leg flange of the F-portal channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005328.5A CN109530486B (en) | 2019-01-03 | 2019-01-03 | F shaped steel roll formula low temperature orthotic devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005328.5A CN109530486B (en) | 2019-01-03 | 2019-01-03 | F shaped steel roll formula low temperature orthotic devices |
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| CN109530486A CN109530486A (en) | 2019-03-29 |
| CN109530486B true CN109530486B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN105312363A (en) * | 2015-10-29 | 2016-02-10 | 张俊锋 | Irregular-shaped material distortion correction device |
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| CN105817840A (en) * | 2016-04-22 | 2016-08-03 | 太仓市东晖机械厂 | Machining and producing process of seamless steel pipe |
| CN205701931U (en) * | 2016-06-08 | 2016-11-23 | 马鞍山东兴铸造有限公司 | A kind of beam straightening roller |
| CN106881354A (en) * | 2017-02-22 | 2017-06-23 | 宣化钢铁集团有限责任公司 | A kind of angle steel pre-straightening device |
| CN207357821U (en) * | 2017-09-14 | 2018-05-15 | 江西红睿马钢管股份有限公司 | A kind of tube straightening device |
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2019
- 2019-01-03 CN CN201910005328.5A patent/CN109530486B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10180357A (en) * | 1996-12-26 | 1998-07-07 | Nippon Steel Corp | Method for controlling rail straightening device |
| JP2008173653A (en) * | 2007-01-17 | 2008-07-31 | Kayaba Ind Co Ltd | Method of manufacturing straightened and tempered workpiece |
| CN203197045U (en) * | 2013-03-29 | 2013-09-18 | 安徽国建钢结构股份有限公司 | Correcting device for H-shaped steel |
| CN105312363A (en) * | 2015-10-29 | 2016-02-10 | 张俊锋 | Irregular-shaped material distortion correction device |
| CN105728502A (en) * | 2016-04-13 | 2016-07-06 | 张家港市金邦铝业股份有限公司 | Aluminum special-shaped profile straightening machine |
| CN105817840A (en) * | 2016-04-22 | 2016-08-03 | 太仓市东晖机械厂 | Machining and producing process of seamless steel pipe |
| CN205701931U (en) * | 2016-06-08 | 2016-11-23 | 马鞍山东兴铸造有限公司 | A kind of beam straightening roller |
| CN106881354A (en) * | 2017-02-22 | 2017-06-23 | 宣化钢铁集团有限责任公司 | A kind of angle steel pre-straightening device |
| CN207357821U (en) * | 2017-09-14 | 2018-05-15 | 江西红睿马钢管股份有限公司 | A kind of tube straightening device |
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| CN109530486A (en) | 2019-03-29 |
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