CN85109257A - Large elongation continue asynchronous cold continuous rolling mill and technology - Google Patents
Large elongation continue asynchronous cold continuous rolling mill and technology Download PDFInfo
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- CN85109257A CN85109257A CN85109257.8A CN85109257A CN85109257A CN 85109257 A CN85109257 A CN 85109257A CN 85109257 A CN85109257 A CN 85109257A CN 85109257 A CN85109257 A CN 85109257A
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Abstract
The invention provides a kind of continue asynchronous cold continuous rolling mill and technology that can access the rolling metal strip of big extensional.It is characterized in that the asynchronous system 4-roller cold rolling mill multimachine frame splice layout in the unit; The asynchronous speed ratio of the asynchronous rolling machine main frame in the tandem mill does not wait institute to cause by the upper and lower gear number of teeth of pinion stand or by poor realization the in roller footpath, can adopt alternate manner to realize yet; Rolling mill transmission system is by preventing that the electric shock requirement from designing; Last or the bottom working roll of asynchronous rolling machine is designed to the sloping shoulders formula, and working roll has certain staggered amount of bias with respect to support roller center on line.Use the process of this kind cold continuous rolling will note controlling each rolling mill passage lengthening coefficient greater than its asynchronous speed ratio value.
Description
The invention belongs to the stress metal manufacture field, cold worked asynchronous tandem cold rolling unit of a kind of sheet metal strip plasticity and technology promptly are provided.
At present mostly the used cold continuous rolling of commercial production of metals band is the tandem mill be made up of synchronous milling train.This kind equipment is improved the quality of its product owing to adopt electronic computer to control, and the efficient of production is improved.Yet the increase percentage pass reduction reduces the annealing number of times.Cutting down the consumption of energy is still the problem that this tandem mill is produced, and then problem is more outstanding during especially rolling strip product.The asymmetrical rolling technology can reduce draught pressure, increases reduction in pass, especially can break through the minimum rolled thickness restriction, for a new road has been opened up in cold rolled metal strip production.The asymmetrical rolling technology is used for the Soviet Union that has that the multimachine cold continuous rolling sees report cuts one meter seven tandem mills of four racks of train wave Wei Ciji metallurgical works.This unit is the tandem rolling unit that adopts synchronous and asynchronous frame alternate configurations, its asynchronous speed ratio is very little, only has 1.06～1.10, fails to solve the technical difficulty when adopting the large speed ratio asymmetrical rolling, the effect that reduces draught pressure is little, can not significantly improve rolling efficiency and alleviate machine utilization; Its passage lengthening coefficient only is 17～30%, especially can not solve the technical difficulty in thickness the producing than the strip steel below 0.3mm.The main effect of this kind asynchronous tandem cold rolling machine only shows on the pollution level that reduces product surface.
The objective of the invention is to provides a kind of big continue asynchronous continuous cold-rolling equipment of extension large speed ratio multimachine frame and technology for the cold continuous rolling production of sheet metal strip.
Cold continuous rolling of the present invention (as Fig. 1) includes uncoiler, some 4-roller cold rolling mill seats and coiling machine.Some 4-roller cold rolling mill seats generally adopt asynchronous system 4-roller cold rolling mill seat splice to arrange.If also can be behind uncoiler during raw material specification thicker (D/H＜50) first or first and second be arranged as synchronous 4-roller cold rolling mill seat, the back number be an asynchronous system 4-roller cold rolling mill seat splice layout.Its operation of rolling be made-up belt by the uncoiler uncoiling, successively by each rolling mill, batch by coiling machine at last and finish the operation of rolling.The asynchronous speed ratio i=of each rolling mill (n in the continue asynchronous cold continuous rolling mill group
1)/(n
2)=1.10-1.40.The concrete selection of the asynchronous speed ratio of each rolling mill will be considered distribution and each frame passage extension size of rolling load.
The main frame row (as Fig. 2) of the asynchronous 4-roller cold rolling mill seat that the present invention arranges are made up of main motor 1, reductor 2, herringbone gear 3 and steel rolling support 4.Upper and lower gear tooth number Z in the herringbone gear
1And Z
2Do not wait the asynchronous speed ratio that has caused roll, also can be by roller footpath poor or alternate manner realize that its asynchronous ratio coverage is 1.10～1.40.Milling train is a four-roller type working roll transmission asynchronous rolling machine (also can adopt the support roller driven type).Be the milling train electric shock that prevents to occur in the tandem rolling, remove and select appropriate speed ratio for use, outside the technological measures such as control passage extension, mainly taked the synchronous milling train of the more identical size of rigidity of roll transmission system (comprising herringbone gear gear, universal-joint spindle and work roll roll neck) asynchronous rolling machine transmission system to increase 1～3 times by rigidity Design.
When rolling thin specification band, for giving full play to the asymmetrical rolling effect, alleviate machine utilization, milling train go up or bottom working roll (as Fig. 3) is designed to the sloping shoulders formula.The smooth segment length L in body of roll middle part is equal to or slightly greater than institute's strip width, and two shoulder slope rates are 1/150 to 1/300.
Rolling stable for guaranteeing, eliminate the heating of workroll bearing and frequent burning out, the asynchronous rolling machine roll system adopts staggered biasing and suitable amount of bias (as Fig. 4).The amount of bias e=1.0-4.0mm of the relative support roller of working roll center on line, and quick roll is that bottom working roll will be to milling train outlet biasing; Roller is that top working roll will be setovered to the milling train entrance side at a slow speed.
Take asynchronous cold continuous rolling mill of the present invention, its production technology will be controlled the passage of each rolling mill and extend greater than asynchronous speed ratio; Enough technological lubrication coolings will be arranged in the operation of rolling.Tension force control can be selected according to the reasonable power division and the rolling process stability of tandem rolling unit between its frame.
Tandem rolling unit of the present invention has been given full play to the effect of asymmetrical rolling because its asynchronous frame number and configuration mode are unrestricted, and making this unit have passage, to extend big mill load low, the distinguishing feature that rolling efficiency is high; Especially for the band of rolling thin specification, act on more outstanding.Can realize every time big extension of 1.8～2.0 during strip steel below rolling thick 0.3mm, make the general milling train reduction 1/3rd of required total rolling pass, and reduce or remove from fully intermediate softening heat treatment.The present invention can thoroughly eliminate harmful milling train electric shock, realizes continuous and stable production; Can alleviate machine utilization greatly and eliminate the heating of workroll bearing and burn out.
The present invention designs the new tandem rolling unit except that can be used for, and also is applicable to the transformation to existing conventional four-roller type cold continuous rolling.The band plate shape of producing with equipment of the present invention and process is good, and surface quality is more excellent.
Description of drawings:
Fig. 1 1-uncoiler; The 2-coiling machine;
№ 1-first rolling mill; № 2-second rolling mill;
№ n-n rolling mill;
n
1-bottom working roll rotating speed; n
2-top working roll rotating speed.
Fig. 2 1-master motor; The 2-reductor;
The 3-herringbone gear; 4-four roller asynchronous rolling machines;
The 5-universal-joint spindle.
Fig. 3 1-body of roll tapering 1: 150～1: 300;
B-rolled piece width; The horizontal segment length of the L-body of roll;
L
R-the body of roll is long.
Fig. 4 1-support roller; The 2-working roll;
The amount of bias of the relative support roller of e-working roll.
Claims (5)
1, one group includes uncoiler, some 4-roller cold rolling mill seats and Volume and gets the cold continuous rolling group that machine is formed, it is characterized in that some 4-roller cold rolling mill seats in the unit can all adopt asynchronous system 4-roller cold rolling mill seat splice to arrange, or first and second is synchronous 4-roller cold rolling mill seat behind uncoiler, the back number is that asynchronous system 4-roller cold rolling mill seat splice is arranged dual mode, and the asynchronous speed ratio of each frame asynchronous rolling machine is between 1.10～1.40 in this splice tandem mills.
2, as the said tandem mills of claim 1, it is characterized in that the main frame of the asynchronous 4-roller cold rolling mill seat in this tandem mill is listed as by main motor (1), reductor (2), herringbone gear (3) and steel rolling support (4) are formed; The asynchronous speed ratio of its roll is by the upper and lower gear tooth number Z in the herringbone gear
1And Z
2Do not wait and cause, also can be by poor realization the in roller footpath; Rolling mill transmission system (comprising herringbone gear gear, universal-joint spindle, work roll roll neck) is by rigidity Design, requires the rigidity of synchronous milling train of the identical size of ratio of rigidity of transmission system big 1～3 times.
3, as claim 1,2 described tandem mills, it is characterized in that the last or bottom working roll of asynchronous rolling machine is designed to the sloping shoulders formula, the smooth segment length in body of roll middle part is equal to or slightly greater than the width of institute's strip, and two shoulder slope rates are 1/150 to 1/300.
4, as the said cold continuous rolling of claim 3, it is characterized in that the working roll of milling train has staggered certain amount of bias e=1.0～4.0mm with respect to support roller center on line, wherein quick roll will be setovered to outlet side, and roller will be setovered to the milling train entrance side at a slow speed.
5, a kind of pressure processing method of sheet metal strip is characterized in that adopting and processes as claim 1,2,3,4 described cold continuous rollings, will control each frame passage lengthening coefficient greater than asynchronous speed ratio value in the operation of rolling.Tension force control between frame can be selected according to the reasonable power division and the rolling process stability of tandem rolling unit, and enough technological lubrication coolings will be arranged in the operation of rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85109257 CN1012668B (en) | 1985-12-14 | 1985-12-14 | Large elongation continue asynchronous cold continuous rolling mill and technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85109257 CN1012668B (en) | 1985-12-14 | 1985-12-14 | Large elongation continue asynchronous cold continuous rolling mill and technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85109257A true CN85109257A (en) | 1987-06-24 |
| CN1012668B CN1012668B (en) | 1991-05-29 |
Family
ID=4796283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85109257 Expired CN1012668B (en) | 1985-12-14 | 1985-12-14 | Large elongation continue asynchronous cold continuous rolling mill and technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012668B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989766A (en) * | 2012-12-25 | 2013-03-27 | 东北大学 | Method for rolling ultra-thin metal strap |
| CN103191917A (en) * | 2012-01-05 | 2013-07-10 | 鞍钢股份有限公司 | Rolling process of high-strength cold-rolled strip steel |
| CN103658174A (en) * | 2013-12-04 | 2014-03-26 | 攀钢集团攀枝花钢钒有限公司 | Finishing mill unit in hot continuous rolling |
| CN105080966A (en) * | 2015-08-19 | 2015-11-25 | 东北大学 | Method for manufacturing ultra-thin nanocrystalline metal strip |
| CN105598165A (en) * | 2016-03-17 | 2016-05-25 | 杨尹华 | Cold drawing rolling mill and drive device |
| CN107812788A (en) * | 2017-12-01 | 2018-03-20 | 中航锂电技术研究院有限公司 | A kind of metal foil rolling system |
| CN109201735A (en) * | 2018-11-15 | 2019-01-15 | 中南大学 | A kind of High-strength pure copper foil material deep cooling rolling preparation method |
| CN109746270A (en) * | 2019-01-14 | 2019-05-14 | 中南大学 | A kind of reversible deep cooling pack rolling method for separating and preparing of the single chassis of high-performance copper foil |
| CN111069285A (en) * | 2019-11-18 | 2020-04-28 | 东北大学 | Asynchronous hot continuous rolling method for preparing hot-rolled extremely-thin steel strip |
-
1985
- 1985-12-14 CN CN 85109257 patent/CN1012668B/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191917A (en) * | 2012-01-05 | 2013-07-10 | 鞍钢股份有限公司 | Rolling process of high-strength cold-rolled strip steel |
| CN103191917B (en) * | 2012-01-05 | 2014-12-31 | 鞍钢股份有限公司 | Rolling process of high-strength cold-rolled strip steel |
| CN102989766A (en) * | 2012-12-25 | 2013-03-27 | 东北大学 | Method for rolling ultra-thin metal strap |
| CN103658174A (en) * | 2013-12-04 | 2014-03-26 | 攀钢集团攀枝花钢钒有限公司 | Finishing mill unit in hot continuous rolling |
| CN105080966A (en) * | 2015-08-19 | 2015-11-25 | 东北大学 | Method for manufacturing ultra-thin nanocrystalline metal strip |
| CN105080966B (en) * | 2015-08-19 | 2017-04-12 | 东北大学 | Method for manufacturing ultra-thin nanocrystalline metal strip |
| CN105598165A (en) * | 2016-03-17 | 2016-05-25 | 杨尹华 | Cold drawing rolling mill and drive device |
| CN107812788A (en) * | 2017-12-01 | 2018-03-20 | 中航锂电技术研究院有限公司 | A kind of metal foil rolling system |
| CN109201735A (en) * | 2018-11-15 | 2019-01-15 | 中南大学 | A kind of High-strength pure copper foil material deep cooling rolling preparation method |
| CN109746270A (en) * | 2019-01-14 | 2019-05-14 | 中南大学 | A kind of reversible deep cooling pack rolling method for separating and preparing of the single chassis of high-performance copper foil |
| CN111069285A (en) * | 2019-11-18 | 2020-04-28 | 东北大学 | Asynchronous hot continuous rolling method for preparing hot-rolled extremely-thin steel strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1012668B (en) | 1991-05-29 |
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