CN112246865A - Novel cold rolling process for I-shaped steel - Google Patents
Novel cold rolling process for I-shaped steel Download PDFInfo
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- CN112246865A CN112246865A CN202011061680.XA CN202011061680A CN112246865A CN 112246865 A CN112246865 A CN 112246865A CN 202011061680 A CN202011061680 A CN 202011061680A CN 112246865 A CN112246865 A CN 112246865A
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- steel
- shaped steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-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
- B21B1/08—Metal-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
- B21B1/088—H- or I-sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
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Abstract
The invention provides a novel cold rolling I-shaped steel process, which comprises the following steps: during production, a narrow raw material belt is placed on an uncoiler, is fed into a loop through a fixed shearing head and is rotated, is fed into a universal machine train through the loop, is rolled and then enters a vertical roller straightener and a flat roller straightener to enable the product to be leveled and straightened to meet production requirements, the required length is cut through a flying shear according to the production length, the product is transported through a steel shifting roller way, is shifted onto a transport chain, and finally is bundled by a bundling device and is manually transported to a finished product area by a crane. The method provided by the invention has the advantages that the waste of resources is reduced, the energy is saved, the environment is protected, the production cost is reduced, and meanwhile, the mechanical property and the surface quality of the I-shaped steel are improved by cold rolling forming.
Description
Technical Field
The invention belongs to the technical field of cold rolled steel, and particularly relates to a novel process for cold rolling I-shaped steel.
Background
The I-shaped steel belongs to an economic section and is used for manufacturing steel grating plates, and the conventional I-shaped steel production line is formed by hot rolling of longitudinal-shearing strip steel, namely the longitudinal-shearing strip steel is heated to about 1000 ℃ by a heating furnace before entering a rolling mill and then rolled. Because the temperature of the strip steel is higher, equipment such as a rolling mill and the like needs to be subjected to circulating water cooling in the rolling process so as to ensure the normal operation of each equipment. In addition, due to heating, I-shaped steel can generate oxide skin in the cooling process, which affects the surface quality of finished products and subsequent further deep processing.
Disclosure of Invention
In view of the above, the invention aims to provide a novel cold rolling process for I-shaped steel, so as to solve the problems of high hot rolling cost, resource waste, poor quality and the like of the produced I-shaped steel due to the formation of an oxide layer on the surface in the traditional production process.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a novel process for cold rolling I-shaped steel comprises the following steps:
s1, placing the raw material narrow strips on an uncoiler, feeding the raw material narrow strips by the uncoiler, and feeding the raw material narrow strips into a fixed shear;
s2, feeding the materials into a loop for storing after fixing the shearing head, and feeding the materials into a universal rolling mill train through the loop;
s3, rolling the raw material through a universal rolling mill train to produce initial I-shaped steel, and feeding the initial I-shaped steel into a straightening machine through the universal rolling mill train;
s4, flattening and straightening the initial I-shaped steel through a straightening machine to form finished I-shaped steel meeting the production requirements;
s5, conveying the finished product I-shaped steel to a flying shear, and intercepting the finished product I-shaped steel according to the production length by using the flying shear;
and S6, shifting the finished product to a conveying chain through a steel shifting roller way, conveying the finished product to a bundling device through the conveying chain, bundling the finished product through the bundling device, and then manually conveying the finished product to a finished product area through a crane.
Further, the uncoiler in the step S1 is used to help uncoil and smoothly feed the steel coil.
Further, the fixed shears in step S2 are used to shear the steel coil head part on the uncoiler and to shear the steel when a temporary problem is encountered and a steel pile problem is generated.
Further, the loop in the step S2 is a cage type storage, and is used to ensure that the rolling mill realizes continuous rolling without interruption.
Further, the universal rolling mill train in the step S3 includes a plurality of universal rolling mills, and the universal rolling mill train is used for rolling the thick strip steel in multiple passes to produce the initial I-section steel.
Further, the straightening machine in the step S4 includes a vertical roller straightening machine and a flat roller straightening machine, the initial I-section steel is adjusted, straightened and flattened on both sides thereof by the vertical roller straightening machine to form a semi-finished I-section steel, the vertical roller straightening machine conveys the semi-finished I-section steel to the flat roller straightening machine, and the upper and lower surfaces of the semi-finished I-section steel are straightened and flattened by the flat roller straightening machine to produce a finished I-section steel.
Further, the flying shears in the step S5 are used for shearing the finished I-shaped steel into the required length according to the requirement.
Further, the steel poking roller way in the step S6 includes a poking rod and an air cylinder for controlling the poking rod, and the air cylinder controls the poking rod to poke the finished product from the roller way to the conveying chain.
Compared with the prior art, the novel cold-rolled I-shaped steel process has the following advantages:
the method provided by the invention has the advantages that the waste of resources is reduced, the energy is saved, the environment is protected, the production cost is reduced, and meanwhile, the mechanical property and the surface quality of the I-shaped steel are improved by cold rolling forming.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a front view of the overall layout of a novel cold-rolled I-section steel process line according to the inventive embodiment of the present invention;
FIG. 2 is a top view of the overall layout of a novel cold-rolled I-section steel process line according to the inventive embodiment of the present invention.
Description of reference numerals:
1. an uncoiler; 2. fixing scissors; 3. looping; 4. a universal machine train; 5, a vertical stick straightening machine; 6, a flat roller straightener; 7. flying shears; 8. a steel pulling roller bed; 9. a conveying chain; 10. a bundling device.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
As shown in fig. 1 to 2, a novel cold rolling I-section steel process comprises the following steps:
s1, placing the narrow raw material strips on an uncoiler 1, feeding the narrow raw material strips from the uncoiler 1 into a fixed shear 2;
s2, cutting ends through the fixed shears 2, feeding into the loop 3 for storing, and feeding into a universal rolling mill train through the loop 3;
s3, rolling the raw material through a universal rolling mill train to produce initial I-shaped steel, and feeding the initial I-shaped steel into a straightening machine through the universal rolling mill train;
s4, flattening and straightening the initial I-shaped steel through a straightening machine to form finished I-shaped steel meeting the production requirements;
s5, conveying the finished product I-shaped steel to a flying shear 7, and intercepting the finished product I-shaped steel by using the flying shear 7 according to the production length;
and S6, the finished products are pushed to the conveying chain 9 through the steel pushing roller way 8, conveyed to the bundling device 10 through the conveying chain 9, bundled by the bundling device 10 and then manually conveyed to a finished product area through a crane.
The uncoiler 1 in the step S1 is used for helping uncoiling and smooth feeding of the steel coil.
The fixed shears 2 in the step S2 are used for shearing the head part of the steel coil on the uncoiler 1 and shearing the steel when the steel piling problem is generated due to temporary problem.
And the loop 3 in the step S2 is a cage type storage material and is used for ensuring that the rolling mill realizes continuous rolling without interruption.
The universal rolling mill train in the step S3 includes a plurality of universal rolling mills, and the universal rolling mill train is used for rolling a strip steel of a thickness in multiple passes to produce an initial I-section steel.
The straightening machine in the step S4 comprises a vertical roller straightening machine and a flat roller straightening machine, wherein the two sides of the initial I-shaped steel are adjusted, straightened and leveled by the vertical roller straightening machine to form a semi-finished I-shaped steel, the semi-finished I-shaped steel is conveyed to the flat roller straightening machine by the vertical roller straightening machine, and the upper surface and the lower surface of the semi-finished I-shaped steel are straightened and leveled by the flat roller straightening machine to produce the finished I-shaped steel.
The flying shears 7 in the step S5 are used for shearing the finished I-section steel into a required length as required.
The steel poking roller way 8 in the step S6 comprises a poking rod and an air cylinder for controlling the poking rod, and the air cylinder controls the poking rod to poke the finished product from the roller way to the conveying chain 9.
The specific method comprises the following steps:
as shown in fig. 1 and 2, the overall arrangement of the new production line comprises: the device comprises an uncoiler 1, a fixed shear 2, a loop 3, a universal machine train 4, a vertical roll straightener 5, a flat roll straightener 6, a flying shear 7, a steel pulling roller way 8, a conveying chain 9 and a bundling device 10;
during production, a narrow raw material belt is placed on an uncoiler, is fed into a loop through a fixed shearing head and is rotated, is fed into a universal machine train through the loop, is rolled and then enters a vertical roller straightener and a flat roller straightener to enable the product to be leveled and straightened to meet production requirements, the required length is cut through a flying shear according to the production length, the product is transported through a steel shifting roller way, is shifted onto a transport chain, and finally is bundled by a bundling device and is manually transported to a finished product area by a crane.
The uncoiler 1 is a double-coil vertical uncoiling, can meet the requirement that the inner diameter of a steel coil is 570-650mm, and the outer diameter can reach 1400mm at most, and is used for helping the steel coil to uncoil and smoothly feed. And the fixed shears 2 are used for shearing the head part of the steel coil on the uncoiler 1 and shearing the steel strip when temporary problems occur, such as steel piling and the like. Loop 3 is cage storage, can guarantee that the rolling mill realizes rolling in succession, incessantly. The universal rolling mill train 4 is used for rolling a strip steel with a certain thickness by a universal rolling mill for multiple times, so that I-shaped steel with various specifications can be produced (main rolling mill parameters: 1000KN for the maximum rolling force of a horizontal roll, 300KN for the maximum rolling force of a vertical roll and 25 KN.m for the maximum rolling moment of the horizontal roll). The vertical roller straightener 5 straightens the I-shaped steel rolled from the universal rolling mill train by a vertical roller to straighten and straighten the two sides of the I-shaped steel, and the flat roller straightener 6 straightens the I-shaped steel by a flat roller to straighten the upper surface and the lower surface of a finished product. The flying shears 7 cut the finished I-shaped steel into required length according to the requirements of customers or production in transportation before being delivered to a package. The steel poking roller way 8 is a transportation device for transporting finished product I-shaped steel to a transportation chain, and when the finished product reaches the corresponding position of the corresponding transportation chain, a poking rod on the steel poking roller way pokes the finished product from the roller way to the transportation chain 9 through the control of an air cylinder. The conveying chain 9 drives the chain to transmit through the rotation of the chain wheel so as to convey the I-shaped steel finished product on the chain to the designated position.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (8)
1. A novel cold rolling I-shaped steel process is characterized by comprising the following steps:
s1, placing the raw material narrow strips on an uncoiler (1), feeding the raw material narrow strips into a fixed shear (2) by the uncoiler (1);
s2, cutting ends through the fixed shears (2), feeding into the loop (3) for storing, and feeding into the universal rolling mill train through the loop (3);
s3, rolling the raw material through a universal rolling mill train to produce initial I-shaped steel, and feeding the initial I-shaped steel into a straightening machine through the universal rolling mill train;
s4, flattening and straightening the initial I-shaped steel through a straightening machine to form finished I-shaped steel meeting the production requirements;
s5, conveying the finished product I-shaped steel to a flying shear (7), and intercepting the finished product I-shaped steel by using the flying shear (7) according to the production length;
and S6, the finished products are pushed to a conveying chain (9) through a steel pushing roller way (8), conveyed to a bundling device (10) through the conveying chain (9), bundled by the bundling device (10), and then manually conveyed to a finished product area through a crane.
2. The novel cold rolling I-steel process according to claim 1, characterized in that: the uncoiler (1) in the step S1 is used for helping uncoiling and smooth feeding of the steel coil.
3. The novel cold rolling I-steel process according to claim 1, characterized in that: the fixed shears (2) in the step S2 are used for shearing the head part of the steel coil on the uncoiler (1) and shearing the steel when the steel stacking problem is generated due to temporary problems.
4. The novel cold rolling I-steel process according to claim 1, characterized in that: and the loop (3) in the step S2 is a cage type storage material, and is used for ensuring that the rolling mill realizes continuous rolling without interruption.
5. The novel cold rolling I-steel process according to claim 1, characterized in that: the universal rolling mill train in the step S3 includes a plurality of universal rolling mills, and the universal rolling mill train is used for rolling a strip steel of a thickness in multiple passes to produce an initial I-section steel.
6. The novel cold rolling I-steel process according to claim 1, characterized in that: the straightening machine in the step S4 comprises a vertical roller straightening machine and a flat roller straightening machine, wherein the two sides of the initial I-shaped steel are adjusted, straightened and leveled by the vertical roller straightening machine to form a semi-finished I-shaped steel, the semi-finished I-shaped steel is conveyed to the flat roller straightening machine by the vertical roller straightening machine, and the upper surface and the lower surface of the semi-finished I-shaped steel are straightened and leveled by the flat roller straightening machine to produce the finished I-shaped steel.
7. The novel cold rolling I-steel process according to claim 1, characterized in that: the flying shears (7) in the step S5 are used for shearing the finished I-shaped steel into required length according to the requirement.
8. The novel cold rolling I-steel process according to claim 1, characterized in that: and the steel poking roller way (8) in the step S6 comprises a poking rod and an air cylinder for controlling the poking rod, and the air cylinder controls the poking rod to poke the finished product onto the conveying chain (9) from the roller way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061680.XA CN112246865A (en) | 2020-09-30 | 2020-09-30 | Novel cold rolling process for I-shaped steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061680.XA CN112246865A (en) | 2020-09-30 | 2020-09-30 | Novel cold rolling process for I-shaped steel |
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| Publication Number | Publication Date |
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| CN112246865A true CN112246865A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011061680.XA Pending CN112246865A (en) | 2020-09-30 | 2020-09-30 | Novel cold rolling process for I-shaped steel |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6444202A (en) * | 1987-08-13 | 1989-02-16 | Nippon Steel Corp | Method for rolling h-shape steel |
| JPS6483301A (en) * | 1987-09-24 | 1989-03-29 | Sumitomo Metal Ind | Manufacture of h-shape steel |
| CN203003488U (en) * | 2012-10-12 | 2013-06-19 | 浙江海通钢业有限公司 | Elevator guide rail steel precise tandem-rolling processing line |
| CN207077194U (en) * | 2017-08-17 | 2018-03-09 | 甘肃申能新能源装备制造有限公司 | A kind of U-shaped steel cold rolling forming production line |
| CN108393368A (en) * | 2018-03-28 | 2018-08-14 | 徐州东鑫铸造有限公司 | A kind of H profile steel production technology |
| CN109604958A (en) * | 2018-12-17 | 2019-04-12 | 上海戴马冷弯型钢发展有限公司 | A kind of continuous production processes and system with strip production pre-buried channel flow |
| CN110976510A (en) * | 2019-11-19 | 2020-04-10 | 天津天重中直科技工程有限公司 | Universal rolling mill for rolling I-shaped steel |
-
2020
- 2020-09-30 CN CN202011061680.XA patent/CN112246865A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6444202A (en) * | 1987-08-13 | 1989-02-16 | Nippon Steel Corp | Method for rolling h-shape steel |
| JPS6483301A (en) * | 1987-09-24 | 1989-03-29 | Sumitomo Metal Ind | Manufacture of h-shape steel |
| CN203003488U (en) * | 2012-10-12 | 2013-06-19 | 浙江海通钢业有限公司 | Elevator guide rail steel precise tandem-rolling processing line |
| CN207077194U (en) * | 2017-08-17 | 2018-03-09 | 甘肃申能新能源装备制造有限公司 | A kind of U-shaped steel cold rolling forming production line |
| CN108393368A (en) * | 2018-03-28 | 2018-08-14 | 徐州东鑫铸造有限公司 | A kind of H profile steel production technology |
| CN109604958A (en) * | 2018-12-17 | 2019-04-12 | 上海戴马冷弯型钢发展有限公司 | A kind of continuous production processes and system with strip production pre-buried channel flow |
| CN110976510A (en) * | 2019-11-19 | 2020-04-10 | 天津天重中直科技工程有限公司 | Universal rolling mill for rolling I-shaped steel |
Non-Patent Citations (1)
| Title |
|---|
| 吴迪等: "电机通风用异形钢材高精度冷轧", 《钢铁》 * |
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