CN112275843A - Pre-straightening structure used after surface treatment of titanium alloy seamless tube blank - Google Patents
Pre-straightening structure used after surface treatment of titanium alloy seamless tube blank Download PDFInfo
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- CN112275843A CN112275843A CN202011209797.8A CN202011209797A CN112275843A CN 112275843 A CN112275843 A CN 112275843A CN 202011209797 A CN202011209797 A CN 202011209797A CN 112275843 A CN112275843 A CN 112275843A
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- straightening
- fixedly connected
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- tube blank
- seamless tube
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- 238000004381 surface treatment Methods 0.000 title claims abstract description 15
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims description 21
- 239000000919 ceramic Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 7
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000020238 sunflower seed Nutrition 0.000 description 1
Images
Classifications
-
- 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
- B21D3/05—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 arranged on axes rectangular to the path of the work
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/027—Combined feeding and ejecting devices
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to the technical field of seamless steel pipe production, in particular to a pre-straightening structure used after surface treatment of a titanium alloy seamless pipe blank, which comprises a straightening shell, a limiting block and a medium frequency heating coil, wherein a straightening box is fixedly connected in the straightening shell, a spring is fixedly connected in the straightening box, the other end of the spring is fixedly connected with a sliding block, a straightening rotating roller is rotatably connected in a U-shaped frame, and limiting rods are fixedly connected on both sides in the straightening box, prevent the straightening roller from being damaged due to the collision between the bending of the seamless pipe blank and the straightening roller.
Description
Technical Field
The invention relates to the technical field of seamless steel pipe production, in particular to a pre-straightening structure used after surface treatment of a titanium alloy seamless pipe blank.
Background
The seamless steel pipe is made of a whole metal, has no seam on the surface, is called seamless steel pipe, and is divided into hot rolled pipe, cold drawn pipe, extruded pipe, jacking pipe and the like according to the production method, the seamless steel pipe is divided into round and special-shaped pipes according to the section shape, the special-shaped pipe has various complex shapes such as square, oval, triangle, hexagon, sunflower seed shape, star shape and finned pipe, the maximum diameter reaches 650mm, the minimum diameter is 0.3mm, and the seamless steel pipe has thick-wall pipes and thin-wall pipes according to different purposes, and is mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical engineering, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors and aviation.
The traditional seamless steel pipe directly sends the treated seamless pipe blank into a processing device for processing during production, at the moment, the seamless pipe blank may have the situation that the bending is not straight enough, the wall thickness of the pipe wall of the seamless pipe blank is excessively large when the seamless pipe blank is produced into a seamless steel pipe, and the production yield of the processing device is reduced, so that the pre-straightening structure used for the surface treatment of the titanium alloy seamless pipe blank is provided aiming at the problems.
Disclosure of Invention
The invention aims to provide a pre-straightening structure for a titanium alloy seamless tube blank after surface treatment, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a pre-straightening structure used after surface treatment of a titanium alloy seamless pipe blank comprises a straightening shell, a limiting block and a medium frequency heating coil, wherein a straightening box is fixedly connected in the straightening shell, a spring is fixedly connected in the straightening box, the other end of the spring is fixedly connected with a sliding block, the other end of the sliding block is fixedly connected with a U-shaped frame, a straightening rotating roller is rotatably connected in the U-shaped frame, limiting rods are fixedly connected to two sides in the straightening box, the left side in the straightening shell is fixedly connected with the limiting block, a telescopic rod is fixedly connected in the limiting block, an electric rotating roller is fixedly connected to the side of the telescopic rod, a conveying rotating roller is rotatably connected to the right side of the straightening shell, a supporting plate is fixedly connected to the bottom of the left side of the straightening shell, a fixing plate is fixedly connected to the top of the supporting plate, a heat insulation, the utility model discloses a heat insulation pipe, including heat insulation pipe, intermediate frequency heating coil, bracing piece, runner, heat insulation pipe left side are equipped with conveyer.
Preferably, the sliding blocks are provided with sliding grooves on two sides, limiting rods are arranged in the sliding grooves formed in the sliding blocks and are arranged on two sides of the spring, the number of the conveying rotating rollers is two, and the conveying rotating rollers are arranged in a vertically symmetrical mode relative to the center of the right side of the straightening shell.
Preferably, straightening boxes are uniformly distributed in the straightening shell, the upper straightening box and the lower straightening box are vertically symmetrically arranged relative to the center of the straightening shell, and the straightening box arranged at the rear and the straightening box arranged at the front are symmetrically arranged front and back relative to the straightening shell.
Preferably, the tapered groove is formed in the left side of the limiting block, the through hole is formed in the center of the right side of the limiting block, the telescopic rods are elastic telescopic rods, the number of the telescopic rods is four, and the telescopic rods are arranged above the limiting block and below the telescopic rods in a vertically symmetrical mode relative to the center of the limiting block.
Preferably, the heat insulation pipe is composed of porous heat insulation ceramic blocks, the support rods are composed of porous heat insulation ceramic blocks, the number of the support rods is two, the two support rods are arranged in a bilateral symmetry mode at the central position of the bottom of the heat insulation pipe, and the rotating wheel is composed of the porous heat insulation ceramic blocks.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the arranged straightening box, the spring and the straightening rotating roller, the seamless tube blank after surface treatment can be conveniently straightened, the phenomenon that the thickness difference of the tube wall is too large when the seamless tube blank is processed into a seamless steel tube due to bending is prevented, and meanwhile, the seamless tube blank can be conveniently conveyed through the limiting block, the telescopic rod and the electric rotating roller, so that the seamless tube blank can accurately enter between the straightening rotating rollers, and the straightening rotating rollers are prevented from being damaged due to collision between the bending of the seamless tube blank and the straightening rotating rollers;
2. according to the invention, the seamless tube blank can be preliminarily heated through the medium-frequency heating coil, the supporting rod and the rotating wheel, so that the molecular gap in the seamless tube blank is increased, the seamless tube blank is easier to be plasticized, the production efficiency is improved, the heated seamless tube blank can be prevented from being exposed in the air through the heat insulation pipe, the fence ring and the fixing plate, and a worker can be prevented from accidentally touching the heated seamless tube blank to cause scalding.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of an installation structure of the heat insulating pipe according to the present invention;
FIG. 3 is a schematic view of the installation structure of a straightening box according to the invention;
FIG. 4 is a schematic view of a limiting block structure according to the present invention;
FIG. 5 is a schematic view of the structure at A of FIG. 1 according to the present invention.
In the figure: 1. straightening the shell; 2. straightening and rotating rollers; 3. a straightening box; 4. a slider; 5. a limiting rod; 6. a spring; 7. a U-shaped frame; 8. a limiting block; 9. a telescopic rod; 10. an electric roller; 11. a support plate; 12. a fixing plate; 13. a heat insulating pipe; 14. a fence ring; 15. a medium-frequency heating coil; 16. a support bar; 17. a rotating wheel; 18. a conveying device; 19. and (5) conveying the roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
a pre-straightening structure used after surface treatment of a titanium alloy seamless pipe blank comprises a straightening shell 1, a limiting block 8 and a medium frequency heating coil 15, wherein a straightening box 3 is fixedly connected in the straightening shell 1, a spring 6 is fixedly connected in the straightening box 3, the other end of the spring 6 is fixedly connected with a sliding block 4, the other end of the sliding block 4 is fixedly connected with a U-shaped frame 7, a straightening rotating roller 2 is rotatably connected in the U-shaped frame 7, limiting rods 5 are fixedly connected on two sides in the straightening box 3, the left side in the straightening shell 1 is fixedly connected with the limiting block 8, a telescopic rod 9 is fixedly connected in the limiting block 8, an electric rotating roller 10 is fixedly connected on the side of the telescopic rod 9, a conveying rotating roller 19 is rotatably connected on the right side of the straightening shell 1, the seamless pipe blank can be conveniently straightened through the pre-straightening structure, the qualified rate of seamless steel pipe, the fixed plate 12 is fixedly connected with the top of the supporting plate 11, the heat insulation pipe 13 is fixedly connected with the top of the fixed plate 12, the fence ring 14 is fixedly connected with the right side of the heat insulation pipe 13, the outer side of the heat insulation pipe 13 is fixedly connected with the intermediate frequency heating coil 15, the supporting rod 16 is fixedly connected with the inner side of the heat insulation pipe 13, the rotating wheel 17 is connected in the supporting rod 16 in a rotating mode, the conveying device 18 is arranged on the left side of the heat insulation pipe 13, seamless pipe blanks can be heated through the arrangement, the seamless pipe blanks are enabled to.
The two sides of the sliding block 4 are respectively provided with a sliding chute, the sliding chutes arranged on the sliding block 4 are internally provided with a limiting rod 5, the limiting rods 5 are arranged on the two sides of the spring 6, the number of the conveying rotating rollers 19 is two, the two conveying rotating rollers 19 are arranged up and down symmetrically relative to the central position of the right side of the straightening shell 1, the seamless tube blank entering the straightening shell 1 can be limited through the arrangement, the seamless tube blank can accurately enter between the straightening rotating rollers 2, the seamless tube blank is prevented from damaging the straightening rotating rollers 2, the straightening boxes 3 which are uniformly distributed are arranged in the straightening shell 1, the upper straightening box 3 and the lower straightening box 3 are arranged up and down symmetrically relative to the central position of the straightening shell 1, the straightening box 3 arranged at the rear part and the straightening box 3 arranged at the front part are arranged front and back symmetrically relative to the shell 1, the seamless tube blank can be conveniently straightened through the arrangement, and the qualification rate, the tapered groove has been seted up on stopper 8 left side, stopper 8 right side central point department has seted up the through-hole, telescopic link 9 is the elasticity telescopic link, the total four of number of telescopic link 9, top telescopic link 9 is upper and lower symmetry setting with below telescopic link 9 about stopper 8 central point department, can convey seamless pipe effectively through this setting, make seamless pipe can be straightened by aligning change roller 2 aligning, thermal-insulated pipe 13 comprises porous thermal-insulated ceramic piece, bracing piece 16 comprises porous thermal-insulated ceramic piece, the total two of number of bracing piece 16, two bracing pieces 16 are bilateral symmetry setting about thermal-insulated pipe 13 bottom central point department, runner 17 comprises porous thermal-insulated ceramic piece, can prevent that the seamless pipe after the heating from exposing in the air through this setting, prevent that the workman from accidentally contacting seamless pipe and causing the scald.
The working process is as follows: when the pre-straightening mechanism is used, firstly, a power supply is switched on, at the moment, the intermediate frequency heating coil 15, the electric rotating roller 10 and the conveying rotating roller 19 are electrified, the seamless tube blank after surface treatment is conveyed rightwards into the heat insulation pipe 13 through the conveying device 18, at the moment, the seamless tube blank enters the central position of the intermediate frequency heating coil 15, the seamless tube blank is heated under the action of the intermediate frequency heating coil 15, at the moment, the bottom of the seamless tube blank is contacted with the rotating wheel 17, the rotating wheel 17 rotates in the supporting rod 16, the seamless tube blank is more easily conveyed rightwards, at the moment, the temperature of the seamless tube blank is increased through the heating of the intermediate frequency heating coil 15, at the moment, molecules in the seamless tube blank are heated and expanded, the distance between the molecules of the seamless tube blank is increased and is easily plastic, at the moment, the heat in the seamless tube blank cannot be directly dissipated, when the seamless tube blank is isolated by the fence ring 14, a worker does not contact the heated seamless tube blank, the seamless tube blank enters the straightening shell 1, the seamless tube blank enters the limiting block 8 through the straightening shell 1, the seamless tube blank enters the through hole of the limiting block 8 under the limitation of the conical groove arranged in the limiting block 8, the upper side and the lower side of the seamless tube blank contact the electric rotating rollers 10, the seamless tube blank enters the limiting block 8 under the action of the electric rotating rollers 10 and the conveying device 18, the telescopic rods 9 contract under the action of the seamless tube blank, so that the electric rotating rollers 10 contact the seamless tube blank, the seamless tube blank moves rightwards under the action of the electric rotating rollers 10, when the outer side of the seamless tube blank contacts the straightening rotating rollers 2, the straightening rotating rollers 2 around the seamless tube blank rotate on the U-shaped frame 7 under the action of the rightwards force, the U-shaped frame 7 moves outwards, and the sliding block 4 moves towards the straightening box 3 outside the limiting rod 5 under the action of the U-shaped, at this time, the spring 6 is compressed, the spring 6 generates elastic force to tightly connect the straightening roller 2 with the seamless tube blank, the seamless tube blank can be straightened by the straightening roller 2, when the right end of the straightened seamless tube blank is contacted with the conveying roller 19, the seamless tube blank moves rightwards under the action of the conveying roller 19 until the seamless tube blank is completely sent out from the straightening shell 1, and the power supply is turned off after the straightening is finished.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A pre-straightening structure used after surface treatment of a titanium alloy seamless tube blank is characterized in that: comprises a straightening shell (1), a limiting block (8) and a medium-frequency heating coil (15), wherein the straightening shell (1) is internally and fixedly connected with a straightening box (3), the straightening box (3) is internally and fixedly connected with a spring (6), the other end of the spring (6) is fixedly connected with a sliding block (4), the other end of the sliding block (4) is fixedly connected with a U-shaped frame (7), the U-shaped frame (7) is rotationally connected with a straightening roller (2), the two sides in the straightening box (3) are both fixedly connected with a limiting rod (5), the left side in the straightening shell (1) is fixedly connected with the limiting block (8), the limiting block (8) is internally and fixedly connected with a telescopic rod (9), the telescopic rod (9) is laterally and fixedly connected with an electric roller (10), the right side of the straightening shell (1) is rotationally connected with a conveying roller (19), and the bottom of the left side of the straightening shell (1, backup pad (11) top fixedly connected with fixed plate (12), fixed plate (12) top fixedly connected with heat insulating tube (13), heat insulating tube (13) right side fixedly connected with fence circle (14), heat insulating tube (13) outside and intermediate frequency heating coil (15) fixed connection, fixedly connected with bracing piece (16) in heat insulating tube (13), bracing piece (16) internal rotation is connected with runner (17), heat insulating tube (13) left side is equipped with conveyer (18).
2. The pre-straightening structure for the titanium alloy seamless tube blank after the surface treatment according to claim 1, is characterized in that: the straightening machine is characterized in that sliding grooves are formed in two sides of the sliding block (4), limiting rods (5) are arranged in the sliding grooves formed in the sliding block (4), the limiting rods (5) are arranged on two sides of the spring (6), the number of the conveying rotating rollers (19) is two, and the conveying rotating rollers (19) are arranged in a vertically symmetrical mode relative to the center of the right side of the straightening shell (1).
3. The pre-straightening structure for the titanium alloy seamless tube blank after the surface treatment according to claim 1, is characterized in that: straightening boxes (3) which are uniformly distributed are arranged in the straightening shell (1), the upper straightening box (3) and the lower straightening box (3) are vertically and symmetrically arranged relative to the central position of the straightening shell (1), and the straightening box (3) arranged at the rear and the straightening box (3) arranged at the front are vertically and symmetrically arranged relative to the straightening shell (1).
4. The pre-straightening structure for the titanium alloy seamless tube blank after the surface treatment according to claim 1, is characterized in that: the tapered groove has been seted up in stopper (8) left side, stopper (8) right side central point department of putting has seted up the through-hole, telescopic link (9) are elastic telescopic link, the total four of number of telescopic link (9), top telescopic link (9) and below telescopic link (9) are symmetry setting about stopper (8) central point department of putting about.
5. The pre-straightening structure for the titanium alloy seamless tube blank after the surface treatment according to claim 1, is characterized in that: the heat insulation pipe (13) is composed of porous heat insulation ceramic blocks, the support rods (16) are composed of porous heat insulation ceramic blocks, the number of the support rods (16) is two, the support rods (16) are symmetrically arranged at the center of the bottom of the heat insulation pipe (13), and the rotating wheel (17) is composed of the porous heat insulation ceramic blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011209797.8A CN112275843B (en) | 2020-11-03 | 2020-11-03 | Pre-straightening structure for surface treatment of titanium alloy seamless tube blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011209797.8A CN112275843B (en) | 2020-11-03 | 2020-11-03 | Pre-straightening structure for surface treatment of titanium alloy seamless tube blank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112275843A true CN112275843A (en) | 2021-01-29 |
| CN112275843B CN112275843B (en) | 2024-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011209797.8A Active CN112275843B (en) | 2020-11-03 | 2020-11-03 | Pre-straightening structure for surface treatment of titanium alloy seamless tube blank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210771A (en) * | 2021-11-24 | 2022-03-22 | 栋梁铝业有限公司 | Straightening device and section straightening machine |
| EP4015192A2 (en) | 2020-12-21 | 2022-06-22 | Andrew Turner | An apparatus and method for reducing the curve in a roll of pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1106054A (en) * | 1964-03-24 | 1968-03-13 | Dalmine Spa | Apparatus for straightening by rolling bars or tubes of circular cross section whose diameters vary along their length |
| CN209986030U (en) * | 2019-05-22 | 2020-01-24 | 无锡市前洲无缝钢管有限公司 | Prestraightening machine for producing cold-drawn precise seamless steel pipe |
| CN210045773U (en) * | 2019-04-19 | 2020-02-11 | 河南奋安铝业有限公司 | Aluminum alloy section extrusion device |
| CN210358627U (en) * | 2019-08-05 | 2020-04-21 | 徐州天诚铝业有限公司 | Straightening device for aluminum alloy production |
| CN111545599A (en) * | 2020-06-03 | 2020-08-18 | 葛苏坤 | Stretching straightening device matched with aluminum profile discharging |
| CN213915557U (en) * | 2020-11-03 | 2021-08-10 | 无锡市新峰管业有限公司 | Pre-straightening structure used after surface treatment of titanium alloy seamless tube blank |
-
2020
- 2020-11-03 CN CN202011209797.8A patent/CN112275843B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1106054A (en) * | 1964-03-24 | 1968-03-13 | Dalmine Spa | Apparatus for straightening by rolling bars or tubes of circular cross section whose diameters vary along their length |
| CN210045773U (en) * | 2019-04-19 | 2020-02-11 | 河南奋安铝业有限公司 | Aluminum alloy section extrusion device |
| CN209986030U (en) * | 2019-05-22 | 2020-01-24 | 无锡市前洲无缝钢管有限公司 | Prestraightening machine for producing cold-drawn precise seamless steel pipe |
| CN210358627U (en) * | 2019-08-05 | 2020-04-21 | 徐州天诚铝业有限公司 | Straightening device for aluminum alloy production |
| CN111545599A (en) * | 2020-06-03 | 2020-08-18 | 葛苏坤 | Stretching straightening device matched with aluminum profile discharging |
| CN213915557U (en) * | 2020-11-03 | 2021-08-10 | 无锡市新峰管业有限公司 | Pre-straightening structure used after surface treatment of titanium alloy seamless tube blank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4015192A2 (en) | 2020-12-21 | 2022-06-22 | Andrew Turner | An apparatus and method for reducing the curve in a roll of pipe |
| CN114210771A (en) * | 2021-11-24 | 2022-03-22 | 栋梁铝业有限公司 | Straightening device and section straightening machine |
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| Publication number | Publication date |
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| CN112275843B (en) | 2024-09-10 |
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