CN201183064Y - Strip steel edge crack preventing apparatus of hot continuous rolling unit - Google Patents
Strip steel edge crack preventing apparatus of hot continuous rolling unit Download PDFInfo
- Publication number
- CN201183064Y CN201183064Y CNU2008200101229U CN200820010122U CN201183064Y CN 201183064 Y CN201183064 Y CN 201183064Y CN U2008200101229 U CNU2008200101229 U CN U2008200101229U CN 200820010122 U CN200820010122 U CN 200820010122U CN 201183064 Y CN201183064 Y CN 201183064Y
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- Prior art keywords
- guide wheel
- foreplate
- hot
- strip steel
- continuous rolling
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Abstract
The utility model relates to a hot continuous rolling mill unit, in particular to a device for preventing a strip steel from edge cracking. The device is characterized in that guide wheel devices are respectively installed at a junction between a bell mouth of a foreplate and a channel for the foreplate, at the transmission side and at the working side; hot rolling oil nozzles are installed at the both sides of the roller bodies of the guide wheel devices. When the strip steel runs in the rolling mill, hot rolling oil and water are sprayed out to the surface part of a guide wheel exposed outside the foreplate, and when the guide wheel is driven to rotate, the hot rolling oil is sprayed onto the entire surface of the guide wheel along with the water. The device has the advantages that the method and the structure are simple, the phenomenon that the foreplate is scraped by the edge part of the strip steel to cause edge cracking during the rolling process can be effectively avoided, simultaneously, the abrasion of the guide wheel is reduced, and the service life of the guide wheel is prolonged.
Description
Technical field
The utility model relates to the hot rolled strip production field, particularly relates to a kind of hot continuous rolling unit and prevents to produce the device that the limit is split with steel.
Background technology
The main cause that takes place to split on the limit when silicon steel is produced in hot rolling is that foreplate is hung cured and had foreign matter to drop, and causes the steel flanging part to tear the generation breach because intermediate blank enters mm finishing mill unit strip edge portion scratching foreplate when rolling.Domestic some steel mill adopts guide wheel device to prevent that silicon steel from producing the limit and splitting, but effect is not too desirable, and it is still higher that rate is split on the limit.
The utility model content
The utility model has overcome deficiency of the prior art, purpose provides a kind of hot continuous rolling unit and prevents to produce the device that the limit is split with steel, this method is by being provided with guide wheel device, and the friction between hot-rolling oil reduction strip edge portion of applicating nozzle injection simultaneously and the guide wheel, can effectively reduce the silicon steel limit and split rate.
In order to address the above problem, the utility model by the following technical solutions:
A kind of hot continuous rolling unit prevents to produce the device that the limit is split with steel, and it is characterized in that: at foreplate horn mouth and foreplate passage intersection, transmission side and active side are installed guide wheel device respectively.
The hot-rolling oil nozzle is installed in guide wheel device body of roll both sides.The diameter of described guide wheel device is 240mm, wheel height 400mm, and opening degree is less than foreplate opening degree 20～30mm between two guide wheels.
Compared with prior art, the beneficial effects of the utility model are:
1, at the horn mouth and the plate passage intersection of the every rolling mill of hot fine rolling unit inlet foreplate, transmission side and active side are respectively installed a guide wheel device, and opening degree is less than the foreplate opening degree between two guide wheels, when so the band steel moves in milling train, limit portion contacts with the guide wheel of passive commentaries on classics, can scratching not arrive the foreplate both sides, greatly reduce the incidence that the silicon steel limit is split.
2, spray nozzle device is installed near the guide wheel device, but jet lubrication oil during the operation of band steel has reduced the friction of guide wheel and strip edge portion, reduces the guide wheel wearing and tearing, has improved the quality of guide pulley surface, has prolonged the replacement cycle of guide wheel, also plays the effect of cooling off guide wheel.
3, utilize original hot-rolling oil pipeline to draw the hot-rolling oil pipeline of guide wheel device, method is simple, energy savings.
Description of drawings
Fig. 1 is the utility model front view
Fig. 2 is the utility model vertical view
Among the figure: 1, foreplate 2, guide wheel device 3, nozzle
The specific embodiment
When silicon steel was produced in hot rolling, after the band steel entered mm finishing mill unit, limit portion scratching milling train inlet foreplate 1 two sides because steel is softer, caused strip edge portion breach, or have foreign matter to drop at surface of steel plate, cause foreign matter to be pressed into.In order to address the above problem, the utility model is taked following scheme:
1. at foreplate 1 horn mouth and plate passage intersection, transmission side and active side are installed a guide wheel device 2 respectively, the diameter of guide wheel device 2 is 240mm, wheel height 400mm, opening degree is less than foreplate 1 opening degree 20～30mm between two guide wheels, when intermediate blank entered mm finishing mill unit like this, strip edge portion will contact with guide wheel, avoided contacting with foreplate 1 two sides.
2. hot-rolling oil nozzle 3 is installed in guide wheel device body of roll both sides, and its pipeline communicates with the hot-rolling oil pipeline of finishing mill working roll.
When 3. being with steel in milling train, to move, hot-rolling oil and water be ejected into the guide pulley surface part that is exposed at foreplate 1 outside, when the passive commentaries on classics of guide wheel, hot-rolling oil just is ejected into the whole surface of guide wheel together along with water, not only reduced the friction between strip edge portion and the guide pulley surface, reduce the wearing and tearing of guide wheel, also played the effect of cooling guide wheel simultaneously.
Claims (3)
1, a kind of hot continuous rolling unit prevents to produce the device that the limit is split with steel, and it is characterized in that: at foreplate horn mouth and foreplate passage intersection, transmission side and active side are installed guide wheel device respectively.
2, a kind of hot continuous rolling unit according to claim 1 prevents to produce the device that the limit is split with steel, it is characterized in that: the hot-rolling oil nozzle is installed in guide wheel device body of roll both sides.
3, a kind of hot continuous rolling unit according to claim 1 prevents to produce the device that the limit is split with steel, and it is characterized in that: the diameter of described guide wheel device is 240mm, wheel height 400mm, and opening degree is less than foreplate opening degree 20～30mm between two guide wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200101229U CN201183064Y (en) | 2008-01-08 | 2008-01-08 | Strip steel edge crack preventing apparatus of hot continuous rolling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200101229U CN201183064Y (en) | 2008-01-08 | 2008-01-08 | Strip steel edge crack preventing apparatus of hot continuous rolling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201183064Y true CN201183064Y (en) | 2009-01-21 |
Family
ID=40270801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200101229U Expired - Fee Related CN201183064Y (en) | 2008-01-08 | 2008-01-08 | Strip steel edge crack preventing apparatus of hot continuous rolling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201183064Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415125A (en) * | 2015-10-29 | 2016-03-23 | 燕山大学 | Passive-type strip steel edge grinding device suitable for finishing machine set |
| CN111451299A (en) * | 2020-03-31 | 2020-07-28 | 鞍钢股份有限公司 | Production method for reducing foreign matter press-in on surface of hot-rolled plate |
-
2008
- 2008-01-08 CN CNU2008200101229U patent/CN201183064Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415125A (en) * | 2015-10-29 | 2016-03-23 | 燕山大学 | Passive-type strip steel edge grinding device suitable for finishing machine set |
| CN111451299A (en) * | 2020-03-31 | 2020-07-28 | 鞍钢股份有限公司 | Production method for reducing foreign matter press-in on surface of hot-rolled plate |
| CN111451299B (en) * | 2020-03-31 | 2022-02-18 | 鞍钢股份有限公司 | Production method for reducing foreign matter press-in on surface of hot-rolled plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20150108 |
|
| EXPY | Termination of patent right or utility model |