CN114260315A - Application method of rough and medium rolling hole-free roller on rod and wire hot rolling line - Google Patents
Application method of rough and medium rolling hole-free roller on rod and wire hot rolling line Download PDFInfo
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- CN114260315A CN114260315A CN202111602271.0A CN202111602271A CN114260315A CN 114260315 A CN114260315 A CN 114260315A CN 202111602271 A CN202111602271 A CN 202111602271A CN 114260315 A CN114260315 A CN 114260315A
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Abstract
本发明提供一种棒线材热轧线上粗中轧无孔型轧辊使用方法，包括：对轧辊进行毛化处理，增大轧辊表面摩擦；选定一个轧制区域进行轧件轧制，当该轧制区域内轧件单次轧制数量达到预设值时，更换至另一新的轧制区域，新的轧制区域与原轧制区域之间部分重合。本方案中原轧制区域与新的轧制区域之间部分重合，使得两个轧制区域之间不存在间隙，与现有技术相比，相同深度的磨损情况时，能提高轧辊利用率。
The invention provides a method for using a non-porous type roll for rough and medium rolling on a bar and wire rod hot rolling line, which includes: texturing the roll to increase the surface friction of the roll; When the single rolling quantity of the rolled piece in the rolling area reaches the preset value, it is replaced to another new rolling area, and the new rolling area partially overlaps with the original rolling area. In this solution, the original rolling area and the new rolling area are partially overlapped, so that there is no gap between the two rolling areas. Compared with the prior art, when the wear condition is the same depth, the utilization rate of the roll can be improved.
Description
Technical Field
The invention belongs to the field of bar and wire rolling, and particularly relates to a use method of a rough and medium rolling hole-free roller on a bar and wire hot rolling line.
Background
At present, in the rough rolling process of a bar wire, welding rods 3 are firstly required to be welded on the whole circumferential surface of a non-hole type roller 1 so as to increase the friction force between the roller 1 and a rolled piece 2 and ensure that the rolled piece 2 can be smoothly gripped.
In the rolling process of the rolled piece 2, the contact area of the rolled piece 2 and the roller 1 is a rolling area, the rolling area is repeatedly rubbed by the rolled piece 2, so that the surface of the roller 1 is abraded, the same rolling area cannot be continuously used after reaching a certain rolling quantity, and the rolling area needs to be updated, for example: when the excessive steel amount of the rolling area a1 reaches a preset value K, the rolling area a2 is changed, when the excessive steel amount of the rolling area a2 reaches the preset value K, the rolling area a3 is changed, when the excessive steel amount of the rolling area a3 reaches the preset value K, the rolling area a4 is changed, and the interval beta between two adjacent rolling areas in the rolling areas a1-a4 is increased until no other rolling areas exist on the roller 1, and the roller 1 needs to be repaired. When repairing, the worn uneven surface of the roller 1 is processed to be flat by a lathe, and then the repaired roller 1 is used for rolling the rolled piece 2.
The use of the roller 1 by the method leads to short service life of the same roller 1 and less rolled piece.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a method for using a rough and medium rolling hole-free type roller on a rod and wire hot rolling line, so as to improve the utilization rate of the roller and reduce the cost.
In order to achieve the above objects and other related objects, the present invention provides a method for using a rough and medium rolling non-hole roll in a hot rolling line of rod and wire, comprising:
roughening the roller to increase the surface friction of the roller;
and selecting a rolling area to roll the rolled piece, and when the single rolling quantity of the rolled piece in the rolling area reaches a preset value, replacing the rolled piece to another new rolling area, wherein the new rolling area is partially overlapped with the original rolling area.
Further, when a new rolling zone is replaced, the new rolling zone is arranged in parallel with the original rolling zone.
Further, when the rolling rolls are roughened, only the rolling regions of the rolling rolls which are used first are roughened.
Further, when the roller is roughened, sanding roughening is performed.
Further, when the original rolling zone is changed to a new rolling zone, the rolling is performed by the axial movement of the rolls.
Further, the overlapping ratio between two adjacent rolling areas is 30 to 80%.
Further, after rolling the rolled piece in all the rolling areas, performing reciprocating rolling in each rolling area until the total rolling amount of each rolling area reaches a preset value, replacing the roller for repairing, and rolling the rolled piece again after repairing the roller.
Further, the preset value of the single rolling quantity of the rolled pieces in each rolling area is consistent.
Further, the preset value of the single rolling quantity of the rolled pieces in each rolling area is 2500 tons, and the preset value of the total rolling quantity of each rolling area is 30000 tons.
As described above, the method for using the rough and medium rolling pass-free roller in the hot rolling line of the bar and wire rod has the following beneficial effects:
in the scheme, the original rolling area and the new rolling area are partially overlapped, so that no gap exists between the two rolling areas, compared with the prior art, and the utilization rate of the roller and the total rolling quantity of a single rolling area can be improved under the condition of abrasion with the same depth.
Drawings
Fig. 1 is a schematic view of a roll in the prior art.
FIG. 2 is a schematic view of the use of the rolls in an embodiment of the present invention.
Reference numerals in the drawings of the specification include: a roller 1, a rolled piece 2 and a welding rod 3.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Examples
As shown in fig. 1 and fig. 2, the present embodiment provides a method for using a rough and medium rolling non-hole type roller on a rod and wire hot rolling line, comprising:
s1, roughening the roller 1 to increase the surface friction of the roller 1; when the roller 1 is roughened, only the first rolling area of the roller 1 is roughened, and sanding roughening is performed. Sanding texturing is more convenient, and only carries out the texturing of a rolling region, and texturing consumes short time.
And S2, selecting one rolling area to roll the rolled piece 2, and when the single rolling quantity of the rolled piece 2 in the rolling area reaches a preset value, replacing the rolled piece to another new rolling area, wherein the new rolling area is partially overlapped with the original rolling area, and the new rolling area is arranged in parallel with the original rolling area.
Since only the first rolling zone is roughened, the first rolling zone a1 can smoothly bite the rolled material 2, and the second rolling zone a2 partially overlaps the first rolling zone a1, so that the rolled material 2 can be assuredly bitten in the second rolling zone a 2. When the rolled material 2 is rolled in the second rolling zone a2, the rolled material 2 rubs against the surface of the rolls 1, so that the second rolling zone is roughened as the rolled material 2 is rolled, and the third rolling zone a3 and the second rolling zone a2 partially overlap each other, so that the rolled material 2 can be smoothly gripped in the rolling zone a3, and similarly, the fourth rolling zone a4 and the third rolling zone a3 partially overlap each other, so that the rolled material 2 can be smoothly gripped in the fourth rolling zone a 4. In the present embodiment, the replacement of the rolling area is performed by the axial movement of the rolls 1. The overlap ratio between the new rolling area and the original rolling area is 30-80%, in this embodiment 50%, to ensure smooth gripping of the rolled piece 2. In addition, the preset value of the single rolling quantity of the rolled pieces 2 in each rolling area is 2500 tons, and the total rolling quantity of each rolling area reaches the preset value of 30000 tons. Compared with the prior art that each rolling area is not used after only once rolling for 25000 tons, the abrasion loss in each rolling area can be effectively reduced.
And S3, after rolling the rolled piece 2 in all the rolling areas, performing reciprocating rolling in each rolling area until the total rolling amount of each rolling area reaches a preset value, replacing the roller 1 for repairing, and rolling the rolled piece 2 again after repairing the roller 1. When the roller 1 is repaired, the lathe turns a circle along the circumference of the roller 1, so that the surface of the roller 1 is restored to be flat. When the rolling regions are rolled back and forth, the rolling sequence may be sequentially from the first rolling region a1 to the last rolling region on the roll, or may be reversed from the last rolling region on the roll to the first rolling region a 1.
The preset value of the single rolling quantity of the rolled pieces 2 in each rolling area is 2500 tons in the scheme, and the preset value of the online rolling quantity can reach 30000 tons. Compared with the prior art that the corresponding rolling area is not used any more after each rolling area is rolled for 25000 tons once, the total rolling quantity is greatly increased, but the surface of the roller 1 in each rolling area is abraded to a smaller depth, and when the roller 1 is repaired, the thickness of the removed roller 1 is reduced, so that the number of times of using the roller 1 is increased, and the service life of the roller 1 is effectively prolonged.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The application method of the rough and medium rolling hole-free roller on the rod and wire hot rolling line is characterized by comprising the following steps of:
roughening the roller to increase the surface friction of the roller;
and selecting a rolling area to roll the rolled piece, and when the single rolling quantity of the rolled piece in the rolling area reaches a preset value, replacing the rolled piece to another new rolling area, wherein the new rolling area is partially overlapped with the original rolling area.
2. The method of using a rough medium rolling non-grooved roll in a hot rolling line for rod and wire material according to claim 1, wherein when a new rolling zone is replaced, the new rolling zone is disposed in parallel with the original rolling zone.
3. The method of using a rough medium rolling pass-free roll in a hot rolling line for rod and wire materials as claimed in claim 1, wherein when the roll is roughened, only the first rolling area of the roll to be used is roughened.
4. The method for using a rough and medium rolling non-grooved roll in a hot rolling line for rod and wire material according to claim 3, wherein the roll is roughened by sanding.
5. The method of using a rough medium rolling non-grooved roll in a hot rolling line for rod and wire material according to claim 1, wherein the replacement of the original rolling zone to a new rolling zone is performed by moving the roll in the axial direction.
6. The method for using a rough medium rolling non-grooved roll in a hot rolling line for rod and wire material according to claim 1, wherein the overlapping ratio between the adjacent two rolling zones is 30-80%.
7. The method for using the rough and medium rolling hole-free roller on the bar and wire hot rolling line according to claim 1, wherein after rolling pieces are rolled in all rolling areas, each rolling area is rolled back and forth until the total rolling amount of each rolling area reaches a preset value, the roller is replaced for repair, and the rolling pieces are rolled again after the roller is repaired.
8. The method for using the rough and medium rolling pass-free rolls in the hot rolling line of rod and wire rods as claimed in claim 1, wherein the preset values of the single rolling quantity of the rolled pieces in each rolling zone are consistent.
9. The method for using the rough and medium rolling pass-free roll in the hot rolling line of the rod and wire material according to claim 8, wherein the preset value of the single rolling quantity of the rolled pieces in each rolling zone is 2500 tons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602271.0A CN114260315A (en) | 2021-12-24 | 2021-12-24 | Application method of rough and medium rolling hole-free roller on rod and wire hot rolling line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602271.0A CN114260315A (en) | 2021-12-24 | 2021-12-24 | Application method of rough and medium rolling hole-free roller on rod and wire hot rolling line |
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| Publication Number | Publication Date |
|---|---|
| CN114260315A true CN114260315A (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111602271.0A Pending CN114260315A (en) | 2021-12-24 | 2021-12-24 | Application method of rough and medium rolling hole-free roller on rod and wire hot rolling line |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62263802A (en) * | 1986-05-12 | 1987-11-16 | Mitsubishi Heavy Ind Ltd | Roll cross type rolling mill |
| JPH09271814A (en) * | 1996-04-05 | 1997-10-21 | Nippon Steel Corp | Hot lubrication rolling method |
| CN105032946A (en) * | 2015-07-27 | 2015-11-11 | 攀钢集团攀枝花钢钒有限公司 | Roll-shifting operation method of temper mill |
| CN205110355U (en) * | 2015-11-05 | 2016-03-30 | 方大特钢科技股份有限公司 | Rolling anti -skidding ragged roll of sclausura |
| CN213103779U (en) * | 2020-07-24 | 2021-05-04 | 张家港宏昌钢板有限公司 | Roller device |
| CN113316491A (en) * | 2019-01-28 | 2021-08-27 | 首要金属科技德国有限责任公司 | Changing the effective contour of the working surfaces of the working rolls during the hot rolling of a rolling stock in a rolling stand to a rolled strip |
-
2021
- 2021-12-24 CN CN202111602271.0A patent/CN114260315A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62263802A (en) * | 1986-05-12 | 1987-11-16 | Mitsubishi Heavy Ind Ltd | Roll cross type rolling mill |
| JPH09271814A (en) * | 1996-04-05 | 1997-10-21 | Nippon Steel Corp | Hot lubrication rolling method |
| CN105032946A (en) * | 2015-07-27 | 2015-11-11 | 攀钢集团攀枝花钢钒有限公司 | Roll-shifting operation method of temper mill |
| CN205110355U (en) * | 2015-11-05 | 2016-03-30 | 方大特钢科技股份有限公司 | Rolling anti -skidding ragged roll of sclausura |
| CN113316491A (en) * | 2019-01-28 | 2021-08-27 | 首要金属科技德国有限责任公司 | Changing the effective contour of the working surfaces of the working rolls during the hot rolling of a rolling stock in a rolling stand to a rolled strip |
| CN213103779U (en) * | 2020-07-24 | 2021-05-04 | 张家港宏昌钢板有限公司 | Roller device |
Non-Patent Citations (1)
| Title |
|---|
| 肖立军;王长生;周志军;马长亮;李大伟;: "高线无孔型轧制难点分析及解决措施" * |
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