CN114749482A - Section steel forming machine for track and track production and manufacturing method - Google Patents

Section steel forming machine for track and track production and manufacturing method Download PDF

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Publication number
CN114749482A
CN114749482A CN202210378280.4A CN202210378280A CN114749482A CN 114749482 A CN114749482 A CN 114749482A CN 202210378280 A CN202210378280 A CN 202210378280A CN 114749482 A CN114749482 A CN 114749482A
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CN
China
Prior art keywords
degrees
forming
butt joint
roller
forming machine
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Pending
Application number
CN202210378280.4A
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Chinese (zh)
Inventor
项小庆
张顺生
朱发林
周昌福
许德根
刘峰岭
倪军
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Nanjing Tuxin New Material Technology Co ltd
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Nanjing Tuxin New Material Technology Co ltd
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Publication date
Application filed by Nanjing Tuxin New Material Technology Co ltd filed Critical Nanjing Tuxin New Material Technology Co ltd
Priority to CN202210378280.4A priority Critical patent/CN114749482A/en
Publication of CN114749482A publication Critical patent/CN114749482A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/085Rail sections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B27/00Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02Shape or construction of rolls

Abstract

The invention relates to the technical field related to production and processing of a track, in particular to a profile steel forming machine for the track, which comprises a forming machine body and a forming roller arranged on the forming machine body, wherein the forming roller comprises a mounting seat, a connecting piece and a roller structure; the forming roller on the forming machine body is formed by combining the mounting seat, the connecting piece and the roller structure, the connecting piece is formed by combining the connecting shaft and the connecting seat, the butt joint groove is formed in the connecting seat, the roller structure is formed by combining the central shaft, the roller body, the first butt joint, the second butt joint and the connecting screw rod, and the threaded hole is formed in one end of the central shaft, so that workers can conveniently disassemble, assemble and replace the forming roller, and the convenience of integral maintenance of the forming roller is improved.

Description

Section steel forming machine for track and track production and manufacturing method
Technical Field
The invention relates to the technical field related to track production and processing, in particular to a profile steel forming machine for a track and a track production and manufacturing method.
Background
The cold-bending forming machine is a machine for plastic working technology of making section bar with specific section by continuously bending metal plate strip of coiled material and strip material transversely by means of multi-pass forming rollers which are arranged in sequence, but the forming rollers on the traditional cold-bending forming machine are all mounted together with bearings at two ends of forming rollers, and the wear point of forming roller is that the contact surface of roller and section bar is worn, when it is integrally replaced, its replacement cost is high, and the dismounting between rotating shaft at two sides of forming roller and ball bearing is very inconvenient, so that the time required for daily maintenance of forming roller is increased, and the integral production working efficiency of production line is affected.
Disclosure of Invention
The invention aims to provide a section steel forming machine for a rail and a rail production and manufacturing method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a rail profile steel forming machine and a rail production manufacturing method are provided, in particular to a rail profile steel forming machine, which comprises a forming machine body and a forming roller arranged on the forming machine body, wherein the forming roller comprises:
the mounting seat is formed by combining a lower bearing seat, an upper bearing seat and a ball bearing, and the mounting seats are arranged on the forming machine body in groups;
the connecting pieces are arranged on the mounting seats, and the connecting pieces on the grouped mounting seats are symmetrically arranged;
the roller structure is formed by combining a central shaft, a roller body, a first butt joint, a second butt joint and a connecting screw rod, wherein a threaded hole is formed in one end, close to the second butt joint, of the central shaft, and the roller structure is in butt joint with connecting pieces on two sides through the first butt joint and the second butt joint.
Preferably, the central shaft, the roller body and the first pair of joints are integrally formed, the second pair of joints and the connecting screw rod are integrally formed, and the connecting screw rod is screwed in a threaded hole in the central shaft.
Preferably, the first pair of joints and the second pair of joints are both hexagonal frustum structures, and the sizes of the first pair of joints and the second pair of joints are identical.
Preferably, the connecting piece is formed by combining a connecting shaft and a connecting seat, the connecting shaft and the connecting seat are integrally formed, a butt joint groove is formed in the connecting seat, and the size of the butt joint groove is matched with that of the first butt joint.
Preferably, the connecting screw is fixedly welded with an adjusting nut, and the adjusting nut is movably screwed with a locking nut.
Preferably, the lower bearing seat is fixedly connected in a mounting groove on the forming machine body through a first positioning bolt, the upper bearing seat is fixedly connected with the lower bearing seat through a second positioning bolt, a bearing outer ring of the ball bearing is positioned and locked through the upper bearing seat and the lower bearing seat, and the connecting shaft on the connecting piece is fixedly mounted in a bearing inner ring of the ball bearing.
Preferably, the forming rollers are provided with various specifications, the forming rollers are sequentially arranged on the forming machine body, and different forming rollers are different in the model number of the roller body on each forming roller.
The rail production and manufacturing method is characterized in that the rail profile steel forming machine is used for producing and processing the rail, and the rail production and processing steps comprise:
the method comprises the following steps: carrying out intermediate cold rolling one-step forming, wherein the forming angle is 25 degrees;
step two: carrying out intermediate cold rolling and secondary forming, wherein the forming height is 24mm, and the forming angle is 53 degrees;
step three: stabilizing the formed part, forming the edge part upwards for 7 degrees and turning upwards;
step four: then moving the die to the edge by 25mm, forming the die at 25 degrees, and bending the die at 46mm downwards by 30 degrees;
step five: molding to 55 degrees; forming at 30 degrees to 70 degrees;
step six: molding to 80 degrees, and molding to 70 degrees and 101 degrees;
step seven: stabilizing the formed part, forming 16 degrees at the position 6.7mm away from the multi-edge, and forming 20 degrees at the position 17.3mm away from the center;
step eight: molding to 42.11 degrees and molding to 32.81 degrees at 20 degrees;
step nine: 42.11 ° to 62.11 °, 32.81 ° to 48.81 °;
step ten: stabilizing the formed part, and forming 5 degrees at the second corner part to the side part 50.9mm by taking the center as a reference;
step eleven: stabilizing the molded part, and molding the molded part at a position 17.8mm out of the center by 10 degrees by taking the center as a reference;
step twelve: 10 degrees are molded to 20 degrees;
step thirteen: forming at 20 degrees to 30 degrees;
fourteen steps: forming at 30 degrees to 40 degrees, so that the edge forming at the position is as high as 101mm, and in order to reduce the line speed difference, forming the edge into a side vertical roller;
step fifteen: forming at 40 degrees to 50 degrees;
sixthly, the steps are as follows: forming at 50 degrees to 60 degrees;
seventeen steps: forming at 60 degrees to 68 degrees;
eighteen steps: forming the angle of 68 degrees to 78 degrees;
nineteen steps: forming at 78 degrees to 83 degrees to meet the requirements of drawings;
twenty steps: and forming in the nineteen steps, stabilizing the forming, and returning the material after the forming is finished.
Compared with the prior art, the invention has the beneficial effects that:
1. the forming roller on the forming machine body is formed by combining an installation seat, a connecting piece and a roller structure, the connecting piece is formed by combining a connecting shaft and a connecting seat, a butt joint groove is formed in the connecting seat, the roller structure is formed by combining a central shaft, a roller body, a first pair of joints, a second pair of joints and a connecting screw rod, and a threaded hole is formed in one end of the central shaft, so that workers can conveniently disassemble, assemble and replace the forming roller, and the convenience of integral maintenance is improved;
2. the first pair of joints and the second pair of joints are both designed into a hexagonal frustum structure, and the size of the butt joint groove is designed to be identical to that of the first pair of joints and that of the second pair of joints, so that butt joint of the first pair of joints and the second pair of joints can be facilitated through the notches of the hexagonal frustum structure, relative deflection between the connecting piece and the roller structure can be avoided, and the stability of the whole structure of the roller structure is guaranteed.
3. The process method effectively reduces the power consumption through the twenty-time continuous cold rolling process method, thereby greatly reducing the production cost and obtaining good economic benefit.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the forming roll of the present invention;
FIG. 3 is a schematic view of a mounting base structure;
FIG. 4 is a schematic view of a connector structure;
FIG. 5 is a schematic view of a roll structure;
FIG. 6 is a schematic view of the positions of the central shaft, the roll body and the first butt joint;
FIG. 7 is a schematic view of the second pair of joints and connecting screw positions;
FIG. 8 is a roll flower of a product roll.
In the figure: the roller structure comprises a forming machine body 1, a mounting seat 2, a connecting piece 3, a roller structure 4, a lower bearing seat 5, an upper bearing seat 6, a ball bearing 7, a connecting shaft 8, a connecting seat 9, a butt joint groove 10, a central shaft 11, a roller body 12, a first butt joint 13, a second butt joint 14, a connecting screw rod 15, a threaded hole 16, an adjusting nut 17 and a locking nut 18.
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. 1-8, the present invention provides a technical solution: a rail section steel forming machine and a rail production manufacturing method are provided, in particular to a rail section steel forming machine, which comprises a forming machine body 1 and a forming roller arranged on the forming machine body 1, wherein the forming roller comprises:
the mounting seat 2 is formed by combining a lower bearing seat 5, an upper bearing seat 6 and a ball bearing 7, and the mounting seats 2 are arranged on the forming machine body 1 in groups;
the connecting pieces 3 are arranged on the mounting seats 2, and the connecting pieces 3 on the grouped mounting seats 2 are symmetrically arranged;
a roll structure 4, the roll structure 4 is composed of a central shaft 11, a roll body 12, a first butt joint 13, a second butt joint 14 and a connecting screw 15, a threaded hole 16 is arranged at one end of the central shaft 11 close to the second butt joint 14, the roll structure 4 is butted with the connecting pieces 3 at two sides through the first butt joint 13 and the second butt joint 14, the central shaft 11, the roll body 12 and the first butt joint 13 are integrally formed, the second butt joint 14 and the connecting screw 15 are integrally formed, the connecting screw 15 is screwed in the threaded hole 16 on the central shaft 11, a forming roll on the forming machine body 1 is composed of a mounting seat 2, the connecting pieces 3 and the roll structure 4, the connecting pieces 3 are composed of a connecting shaft 8 and a connecting seat 9, a butt joint groove 10 is arranged on the connecting seat 9, and the roll structure 4 is composed of the central shaft 11, The roller body 12, the first butt joint 13, the second butt joint 14 and the connecting screw rod 15 are combined, and one end of the central shaft 11 is provided with a threaded hole 16, so that workers can conveniently disassemble, assemble and replace the forming roller, and the convenience of the integral maintenance of the forming roller is improved;
the first butt joint 13 and the second butt joint 14 are both of a hexagonal frustum structure, the sizes of the first butt joint 13 and the second butt joint 14 are matched, the connecting piece 3 is formed by combining a connecting shaft 8 and a connecting seat 9, the connecting shaft 8 and the connecting seat 9 are integrally formed, a butt joint groove 10 is formed in the connecting seat 9, the size of the butt joint groove 10 is matched with that of the first butt joint 13, the first butt joint 13 and the second butt joint 14 are both of a hexagonal frustum structure, and the size of the butt joint groove 10 is matched with that of the first butt joint 13 and the second butt joint 14, so that the first butt joint 13 and the second butt joint 14 can be conveniently butted through the notch of the hexagonal frustum structure, relative deflection between the connecting piece 3 and the roller structure 4 can be avoided, and the overall stability of the structure is guaranteed;
an adjusting nut 17 is fixedly welded on the connecting screw rod 15, and a locking nut 18 is movably screwed on the adjusting nut 17;
the lower bearing seat 5 is fixedly connected in a mounting groove on the forming machine body 1 through a first positioning bolt, the upper bearing seat 6 is fixedly connected with the lower bearing seat 5 through a second positioning bolt, a bearing outer ring of the ball bearing 7 is positioned and locked through the upper bearing seat 6 and the lower bearing seat 5, and an upper connecting shaft 8 of the connecting piece 3 is fixedly arranged in a bearing inner ring of the ball bearing 7;
the forming rollers are provided with various specifications and are sequentially arranged on the forming machine body 1, and the different forming rollers are different in the type of the upper roller body 12 of the forming roller;
the rail production manufacturing method is used for production and processing through the section steel forming machine for the rail, and the rail production processing steps comprise:
the method comprises the following steps: carrying out intermediate cold rolling one-step forming, wherein the forming angle is 25 degrees;
step two: carrying out intermediate cold rolling and secondary forming, wherein the forming height is 24mm, and the forming angle is 53 degrees;
step three: stabilizing the formed part, forming the edge part upwards for 7 degrees and turning upwards;
step four: then moving the die to the edge part for 25mm, forming the die for 25 degrees, and bending the die for 30 degrees at a position of 46 mm;
step five: molding to 55 degrees; forming at 30 degrees to 70 degrees;
step six: molding to 80 degrees, and molding to 101 degrees at 70 degrees;
step seven: stabilizing the formed part, forming 16 degrees at the position 6.7mm away from the multi-edge, and forming 20 degrees at the position 17.3mm away from the center;
step eight: molding to 42.11 degrees and molding to 32.81 degrees at 20 degrees;
step nine: 42.11 ° to 62.11 °, 32.81 ° to 48.81 °;
step ten: stabilizing the formed part, and forming 5 degrees at the second corner part to the side part 50.9mm by taking the center as a reference;
step eleven: stabilizing the molded part, and molding the molded part at a position 17.8mm out of the center by 10 degrees by taking the center as a reference;
step twelve: forming at 10 degrees to 20 degrees;
step thirteen: forming at 20 degrees to 30 degrees;
fourteen steps: forming at 30 degrees to 40 degrees, so that the edge forming at the position is as high as 101mm, and in order to reduce the line speed difference, forming the edge into a side vertical roller;
step fifteen: forming at 40 degrees to 50 degrees;
sixthly, the steps are as follows: forming at 50 degrees to 60 degrees;
seventeen steps: forming at 60 degrees to 68 degrees;
eighteen steps: forming the angle of 68 degrees to 78 degrees;
nineteen steps: forming at 78 degrees to 83 degrees to meet the requirements of drawings;
twenty steps: forming one step with the nineteen steps, stable forming, forming completion and material returning, and effectively reducing power consumption by a twenty-time continuous cold rolling process method, so that the production cost is greatly reduced, and good economic benefits are obtained;
the working principle is as follows: the forming roller on the forming machine body 1 is arranged to be composed of a mounting seat 2, a connecting piece 3 and a roller structure 4 in a combined mode, the connecting piece 3 is arranged to be composed of a connecting shaft 8 and a connecting seat 9 in a combined mode, a butt joint groove 10 is formed in the connecting seat 9, the roller structure 4 is arranged to be composed of a central shaft 11, a roller body 12, a first butt joint 13, a second butt joint 14 and a connecting screw 15 in a combined mode, a threaded hole 16 is formed in one end of the central shaft 11, so that a worker can conveniently assemble, disassemble and replace the forming roller, the convenience of integral maintenance is improved, the first butt joint 13 and the second butt joint 14 are arranged to be of a hexagonal frustum structure, the size of the butt joint groove 10 is matched with the size of the first butt joint 13 and the second butt joint 14, and butt joint of the first butt joint 13 and the second butt joint 14 is facilitated through the notch of the hexagonal frustum structure, and it can avoid appearing relative deflection between connecting piece 3 and the roll structure 4 to guarantee its whole stability of structure, during the in-service use, when needing to change the shaping roll, the staff is through unscrewing lock nut 18, then guarantees that roll structure 4 is static, then unscrews connecting piece 3, thereby lets first butt joint 13, second butt joint 14 withdraw from among butt joint groove 10, again take off roll structure 4 and change.
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 (8)

1. The utility model provides a shaped steel make-up machine for track, includes make-up machine body (1) and sets up the combination of shaping roll on make-up machine body (1) and constitute which characterized in that: the forming roll includes:
the mounting seat (2) is formed by combining a lower bearing seat (5), an upper bearing seat (6) and a ball bearing (7), and the mounting seats (2) are arranged on the forming machine body (1) in groups;
the connecting pieces (3) are arranged on the mounting seats (2), and the connecting pieces (3) on the grouped mounting seats (2) are symmetrically arranged;
the roller structure (4) is formed by combining a central shaft (11), a roller body (12), a first butt joint (13), a second butt joint (14) and a connecting screw rod (15), a threaded hole (16) is formed in one end, close to the second butt joint (14), of the central shaft (11), and the roller structure (4) is in butt joint with the connecting pieces (3) on two sides through the first butt joint (13) and the second butt joint (14).
2. The profiled bar forming machine for a rail according to claim 1, wherein: the roller is characterized in that the central shaft (11), the roller body (12) and the first pair of joints (13) are integrally formed, the second pair of joints (14) and the connecting screw rod (15) are integrally formed, and the connecting screw rod (15) is screwed in a threaded hole (16) in the central shaft (11).
3. The rail-use section steel forming machine according to claim 2, wherein: the first pair of joints (13) and the second pair of joints (14) are both hexagonal frustum structures, and the sizes of the first pair of joints (13) and the second pair of joints (14) are identical.
4. The profiled bar forming machine for rails as claimed in claim 3, wherein: the connecting piece (3) is formed by combining a connecting shaft (8) and a connecting seat (9), the connecting shaft (8) and the connecting seat (9) are integrally formed, a butt joint groove (10) is formed in the connecting seat (9), and the size of the butt joint groove (10) is matched with that of a first butt joint (13).
5. The rail-use section steel forming machine according to claim 4, wherein: an adjusting nut (17) is fixedly welded on the connecting screw rod (15), and a locking nut (18) is movably screwed on the adjusting nut (17).
6. The profiled bar forming machine for rails as claimed in claim 5, wherein: the lower bearing seat (5) is fixedly connected in a mounting groove in the forming machine body (1) through a first positioning bolt, the upper bearing seat (6) is fixedly connected with the lower bearing seat (5) through a second positioning bolt, a bearing outer ring of the ball bearing (7) is positioned and locked through the upper bearing seat (6) and the lower bearing seat (5), and an upper connecting shaft (8) of the connecting piece (3) is fixedly mounted in a bearing inner ring of the ball bearing (7).
7. The rail-use section steel forming machine according to claim 6, wherein: the forming rollers are provided with various specifications, the forming rollers are sequentially arranged on the forming machine body (1), and different forming rollers are different in the type of the upper roller body (12) of the forming roller.
8. A rail production manufacturing method is characterized in that: the rail production manufacturing method is used for production processing by a section steel forming machine for the rail according to any one of claims 1 to 7, and the rail production processing steps comprise:
the method comprises the following steps: performing intermediate cold rolling one-step forming, wherein the forming angle is 25 degrees;
step two: carrying out intermediate cold rolling and secondary forming, wherein the forming height is 24mm, and the forming angle is 53 degrees;
step three: stabilizing the formed part, forming the edge part upwards by 7 degrees and turning upwards;
step four: then moving the die to the edge part for 25mm, forming the die for 25 degrees, and bending the die for 30 degrees at a position of 46 mm;
step five: molding to 55 degrees; molding at 30 degrees to 70 degrees;
step six: molding to 80 degrees, and molding to 101 degrees at 70 degrees;
step seven: stabilizing the formed part, forming 16 degrees at the position 6.7mm away from the multi-edge, and forming 20 degrees at the position 17.3mm away from the center;
step eight: molding to 42.11 degrees, and molding to 20 degrees to 32.81 degrees;
step nine: 42.11 ° to 62.11 °, 32.81 ° to 48.81 °;
step ten: stabilizing the formed part, and forming 5 degrees at the second corner part to the side part 50.9mm by taking the center as a reference;
step eleven: stabilizing the molded part, and molding the molded part at a position 17.8mm out of the center by 10 degrees by taking the center as a reference;
step twelve: forming at 10 degrees to 20 degrees;
step thirteen: forming at 20 degrees to 30 degrees;
fourteen steps: forming at 30 degrees to 40 degrees, so that the edge forming at the position is as high as 101mm, and in order to reduce the line speed difference, forming the edge into a side vertical roller;
step fifteen: 40 degrees to 50 degrees;
sixthly, the steps are as follows: forming at 50 degrees to 60 degrees;
seventeen steps: molding at 60 degrees to 68 degrees;
eighteen, the steps are: forming the angle of 68 degrees to 78 degrees;
nineteen steps: forming at 78 degrees to 83 degrees to meet the requirements of drawings;
twenty steps: and forming in the nineteen steps, stabilizing the forming, and returning the material after the forming is finished.
CN202210378280.4A 2022-04-12 2022-04-12 Section steel forming machine for track and track production and manufacturing method Pending CN114749482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210378280.4A CN114749482A (en) 2022-04-12 2022-04-12 Section steel forming machine for track and track production and manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210378280.4A CN114749482A (en) 2022-04-12 2022-04-12 Section steel forming machine for track and track production and manufacturing method

Publications (1)

Publication Number Publication Date
CN114749482A true CN114749482A (en) 2022-07-15

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199524A (en) * 1981-06-01 1982-12-07 Nippon Steel Metal Prod Co Ltd Forming method for lightweight shape steel
JPH08197108A (en) * 1995-01-23 1996-08-06 Aichi Steel Works Ltd Manufacture of rolled channel
EP2085163A1 (en) * 2008-02-01 2009-08-05 HILTI Aktiengesellschaft Cold rolling process for the production of a profile
US20150251234A1 (en) * 2012-09-24 2015-09-10 Nippon Steel & Sumitomo Metal Corporation Method for manufacturing shaped steel the cross-sectional shape of which changes in the longitudinal direction, and roll forming device
CN107030135A (en) * 2017-06-16 2017-08-11 武汉钢铁江北集团有限公司 A kind of double pointed angle square tube forming method of high-strength thick light section
CN111229860A (en) * 2019-12-11 2020-06-05 江苏顺力冷弯型钢实业有限公司 Method for forming vehicle sharp-corner square tube
CN111229828A (en) * 2019-12-11 2020-06-05 江苏顺力冷弯型钢实业有限公司 Forming method of special-shaped beam with right-angle steps
CN211413169U (en) * 2020-01-02 2020-09-04 厦门宜锐机械制造有限公司 Forming mechanism of roll forming machine
CN211515566U (en) * 2019-12-05 2020-09-18 锦州特种焊条有限公司 Roller of rolling mill for metal processing
CN111774455A (en) * 2020-07-17 2020-10-16 南通通和机床科技有限公司 Continuous reverse cold-bending forming method for bottom side beam plate of container
CN113927210A (en) * 2021-10-15 2022-01-14 河北中慧利威节能科技有限公司 Steel strip forming process
CN215586606U (en) * 2021-06-24 2022-01-21 江苏烨宝环境设备有限公司 Roller press convenient for overhauling and replacing compression roller

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199524A (en) * 1981-06-01 1982-12-07 Nippon Steel Metal Prod Co Ltd Forming method for lightweight shape steel
JPH08197108A (en) * 1995-01-23 1996-08-06 Aichi Steel Works Ltd Manufacture of rolled channel
EP2085163A1 (en) * 2008-02-01 2009-08-05 HILTI Aktiengesellschaft Cold rolling process for the production of a profile
US20150251234A1 (en) * 2012-09-24 2015-09-10 Nippon Steel & Sumitomo Metal Corporation Method for manufacturing shaped steel the cross-sectional shape of which changes in the longitudinal direction, and roll forming device
CN107030135A (en) * 2017-06-16 2017-08-11 武汉钢铁江北集团有限公司 A kind of double pointed angle square tube forming method of high-strength thick light section
CN211515566U (en) * 2019-12-05 2020-09-18 锦州特种焊条有限公司 Roller of rolling mill for metal processing
CN111229860A (en) * 2019-12-11 2020-06-05 江苏顺力冷弯型钢实业有限公司 Method for forming vehicle sharp-corner square tube
CN111229828A (en) * 2019-12-11 2020-06-05 江苏顺力冷弯型钢实业有限公司 Forming method of special-shaped beam with right-angle steps
CN211413169U (en) * 2020-01-02 2020-09-04 厦门宜锐机械制造有限公司 Forming mechanism of roll forming machine
CN111774455A (en) * 2020-07-17 2020-10-16 南通通和机床科技有限公司 Continuous reverse cold-bending forming method for bottom side beam plate of container
CN215586606U (en) * 2021-06-24 2022-01-21 江苏烨宝环境设备有限公司 Roller press convenient for overhauling and replacing compression roller
CN113927210A (en) * 2021-10-15 2022-01-14 河北中慧利威节能科技有限公司 Steel strip forming process

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