CN2723064Y - Device for improving oxidic film condition of hot rolling fine rolling work roller surface - Google Patents
Device for improving oxidic film condition of hot rolling fine rolling work roller surface Download PDFInfo
- Publication number
- CN2723064Y CN2723064Y CN 200420082411 CN200420082411U CN2723064Y CN 2723064 Y CN2723064 Y CN 2723064Y CN 200420082411 CN200420082411 CN 200420082411 CN 200420082411 U CN200420082411 U CN 200420082411U CN 2723064 Y CN2723064 Y CN 2723064Y
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- collector
- water
- roll
- header
- nozzle rows
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Abstract
The utility model relates to a device for improving oxidation film condition of a hot-fine rolling work roller surface, comprising a header tank or a first header arranged above a band steel theory pass line at the mill entrance side, and a lower water tank or a second header arranged below. The header tank or the first header is provided with a nozzle array comprising a plurality of nozzles. The lower water tank or the second header is also provided with a nozzle array comprising a plurality of nozzles. In the nozzle array arranged on the header tank or the first header and the nozzle array arranged on the lower water tank or the second header, the distance between the nozzles at both ends of the nozzle arrays is greater than or equal to the maximum width of the rolling line products, which can decrease the band steel surface temperature and the oxidation film thickness.
Description
Technical field
The utility model relates to a kind of device that improves hot fine rolling working roll roll surface oxide-film situation.
Background technology
When belt steel rolling was produced, all rolls that contact with belt steel surface were working roll, and its surface will form the oxide-film that a layer thickness is several microns or tens of microns.Oxide-film is formed with the belt steel surface oxide that is attached to roll surface by the roll surface material of oxidation.Oxide thickness is thin more, generates fine and closely more, then gets over difficult drop-off, helps producing the band steel of great surface quality more.For the precision rolling working roll that is in finished frame, particularly like this.
The thickness of roll surface oxide-film is all multifactor relevant with roll material, band steel scale removal effect, the belt steel surface temperature that enters roll gap, roll rotational speed, roller diameter, drafts, band steel steel grade, roll cooling condition etc. with compactness extent.Change above-mentioned arbitrary factor, all will influence the thickness and the compactness extent of roll surface oxide-film.And the belt steel surface temperature that enters roll gap is high more, and the oxidation tendency of belt steel surface self is serious more, and the roll surface material subjects to oxidation more, and the roll surface oxide-film is easy more to be thickened, and compactness extent also will worsen.Thick and loose oxide-film comes off in rolling easily, causes the roll surface wearing aggravation, and coarse, is unfavorable for the control of belt steel surface and template.
General finish rolling leading portion frame, belt steel surface temperature height, roll rotational speed is slow, and roller diameter is big, and drafts is big, and the roll surface oxide-film is thickened.Influence end product quality.
Summary of the invention
The purpose of this utility model is to provide a kind of device that improves hot fine rolling working roll roll surface oxide-film situation, and it can reduce the belt steel surface temperature, reduces the thickness of oxide-film.
For achieving the above object, the device that improves hot fine rolling working roll roll surface oxide-film situation that the utility model provides, it includes the upper water box or first collector that is arranged at the theoretical roll line of milling train entrance side band steel top, and the lower header of below or second collector;
The upper water box or first collector are provided with nozzle rows, and this nozzle rows includes plurality of nozzles;
The lower header or second collector are provided with nozzle rows, and this nozzle rows includes plurality of nozzles.
The described nozzle rows that is arranged on the upper water box or first collector, and be arranged at nozzle rows on the lower header or second collector, be positioned at the Breadth Maximum of the nozzle distance at nozzle rows both ends more than or equal to this rolling line product;
Angle [alpha] between the direction of advance of the water (flow) direction of described nozzle and band steel, β is bordering on vertical angle or greater than the right angle;
Described first, second collector or upper and lower water tank are connected with the water supply arm respectively, be separately installed with the control valve that can carry out regulating pondage on the arm according to band steel upper and lower surface temperature difference situation, arm connects the water main, and the stop valve that can stop to supply water under abnormal conditions is being installed on the house steward;
The vertical range of first, second collector or upper and lower water tank and theoretical roll line is 0.5～1.5 meter;
The pressure of supply water of described feed pipe is 2-20Mpa, and the water yield is 0.75～2 liter/minute. band steel millimeter;
The utility model can effectively reduce the belt steel surface temperature, reduces the thickness of oxide-film.Improve strip quality.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is in the utility model, the structural representation of nozzle and feed pipe.
The specific embodiment
Below in conjunction with accompanying drawing 1 and accompanying drawing 2, a better embodiment of the present utility model is described.
As shown in Figure 1, be structural representation of the present utility model.Upper and lower at the theoretical roll line of milling train entrance side band steel, be mounted with upper water box or collector 1, and lower header or collector 2, water cools off band steel upper and lower surface, guarantees that the band steel that enters roll gap contacts with the roll roll surface with the surface temperature that is lower than band steel cross section inside.
The length direction of water tank or collector 1,2 or axis are vertical with belt steel rolling line direction.As shown in Figure 2, be installed in two row nozzles 3 on water tank or the collector, 4 must evenly cover belt steel surface, and two injector spacings that are positioned at two row nozzles, 3,4 two ends are from L1, L2 must be more than or equal to the Breadth Maximum of this rolling line product, to guarantee to carry out surface cool to the band steel capital of all width specifications.
Angle [alpha] between nozzle water (flow) direction and the band steel direction of advance, β prevents that to be bordering on vertical or to be advisable greater than the right angle foul of belt steel surface from entering roll gap, and strengthens the cooling effect to belt steel surface.
Respectively to collector or cistern water supply, control valve 7,8 is installed respectively on the arm by arm 5,6, is regulated to carry out the water yield according to band steel upper and lower surface temperature difference situation.Arm 5,6 is aggregated into house steward 9 backs and links to each other with rolling line water source tube 10.Stop valve 11 is installed on house steward 9, is supplied water so that under abnormal conditions, stop.
The vertical range h1 of water tank or collector 1,2 and theoretical roll line, h2 remains between the 0.5-1.5 rice and is advisable, and is guaranteeing under the prerequisite of cooling effect, prevents to be with steel to stick up discount unusually nozzle and collector or water tank are damaged.
Pressure of supply water to be being controlled at 2-20Mpa, the water yield 0.75-2l/min.mm (rise/minute. band steel millimeter width) be advisable, influence of rolled technology not, band rigidity can prerequisite under, obtain cooling effect to belt steel surface.
When the band steel upper and lower surface temperature difference is big, can be by the water yield of following table on control valve 7, the 8 accommodation zone steel.
When the utility model is destroyed or during at rolling steel grade to surperficial residual water sensitivity, available stop valve is closed this cooling water.
When the utility model is particularly useful for rolling thin specification band steel.
The utility model is simple in structure, compact, and is easy to implement.
Claims (6)
1. a device that improves hot fine rolling working roll roll surface oxide-film situation is characterised in that, it includes the upper water box or first collector that is arranged at the theoretical roll line of milling train entrance side band steel top, and the lower header of below or second collector;
The upper water box or first collector are provided with nozzle rows, and this nozzle rows includes plurality of nozzles;
The lower header or second collector are provided with nozzle rows, and this nozzle rows includes plurality of nozzles.
2. the device that improves hot fine rolling working roll roll surface oxide-film situation as claimed in claim 1, it is characterized in that, the described nozzle rows that is arranged on the upper water box or first collector, and be arranged at nozzle rows on the lower header or second collector, be positioned at the Breadth Maximum of the nozzle distance at nozzle rows both ends more than or equal to this rolling line product.
3. the device that improves hot fine rolling working roll roll surface oxide-film situation as claimed in claim 1 or 2 is characterized in that, the angle [alpha] between the direction of advance of the water (flow) direction of described nozzle and band steel, and β is bordering on vertical angle or greater than the right angle.
4. the device that improves hot fine rolling working roll roll surface oxide-film situation as claimed in claim 3, it is characterized in that, described first, second collector or upper and lower water tank are connected with the water supply arm respectively, be separately installed with the control valve that can carry out regulating pondage on the arm according to band steel upper and lower surface temperature difference situation, arm connects the water main, and the stop valve that can stop to supply water under abnormal conditions is being installed on the house steward.
5. the device that improves hot fine rolling working roll roll surface oxide-film situation as claimed in claim 4 is characterized in that the vertical range of first, second collector or upper and lower water tank and theoretical roll line is 0.5～1.5 meter.
6. the device that improves hot fine rolling working roll roll surface oxide-film situation as claimed in claim 5 is characterized in that the pressure of supply water of described feed pipe is 2-20Mpa, and the water yield is 0.75～2 liter/minute.Band steel millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082411 CN2723064Y (en) | 2004-08-31 | 2004-08-31 | Device for improving oxidic film condition of hot rolling fine rolling work roller surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082411 CN2723064Y (en) | 2004-08-31 | 2004-08-31 | Device for improving oxidic film condition of hot rolling fine rolling work roller surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723064Y true CN2723064Y (en) | 2005-09-07 |
Family
ID=35036700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420082411 Expired - Fee Related CN2723064Y (en) | 2004-08-31 | 2004-08-31 | Device for improving oxidic film condition of hot rolling fine rolling work roller surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723064Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189132A (en) * | 2010-03-19 | 2011-09-21 | 宝山钢铁股份有限公司 | Upper spray cooling device arranged among finishing mill racks |
| CN102240677A (en) * | 2011-05-13 | 2011-11-16 | 河北省首钢迁安钢铁有限责任公司 | Method for solving indentation of salix-leaf-shaped iron sheet on surface of hot continuous rolling strip steel |
| CN107700269A (en) * | 2017-10-27 | 2018-02-16 | 浙江荣晟环保纸业股份有限公司 | A kind of slurry concentration adjusting means of paper making equipment |
| CN113059007A (en) * | 2021-02-26 | 2021-07-02 | 武汉钢铁有限公司 | Binding piece surface defect positioning method and device |
-
2004
- 2004-08-31 CN CN 200420082411 patent/CN2723064Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189132A (en) * | 2010-03-19 | 2011-09-21 | 宝山钢铁股份有限公司 | Upper spray cooling device arranged among finishing mill racks |
| CN102240677A (en) * | 2011-05-13 | 2011-11-16 | 河北省首钢迁安钢铁有限责任公司 | Method for solving indentation of salix-leaf-shaped iron sheet on surface of hot continuous rolling strip steel |
| CN102240677B (en) * | 2011-05-13 | 2013-07-17 | 河北省首钢迁安钢铁有限责任公司 | Method for solving indentation of salix-leaf-shaped iron sheet on surface of hot continuous rolling strip steel |
| CN107700269A (en) * | 2017-10-27 | 2018-02-16 | 浙江荣晟环保纸业股份有限公司 | A kind of slurry concentration adjusting means of paper making equipment |
| CN113059007A (en) * | 2021-02-26 | 2021-07-02 | 武汉钢铁有限公司 | Binding piece surface defect positioning method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050907 Termination date: 20130831 |