CN101690950B - Method of reeling stainless strip steel for railway vehicle - Google Patents
Method of reeling stainless strip steel for railway vehicle Download PDFInfo
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- CN101690950B CN101690950B CN2009100748844A CN200910074884A CN101690950B CN 101690950 B CN101690950 B CN 101690950B CN 2009100748844 A CN2009100748844 A CN 2009100748844A CN 200910074884 A CN200910074884 A CN 200910074884A CN 101690950 B CN101690950 B CN 101690950B
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Abstract
The present invention relates to a method of reeling the stainless strip steel for the railway vehicle, comprising the following steps in sequence: I, before the head of the stainless strip steel is moved out of the tail stand of a fine rolling machine, the stainless strip steel is conveyed into a reeling machine through a heat output roller way; II, the stainless strip steel is reeled on a reeling cylinder by the rotating reeling machine; and III, the tensile force is formed between the reeling cylinder of the reeling machine and the working roll of the tail stand of the fine rolling machine, and the subsequent stainless strip steel is rolled out of the fine rolling machine under the tensile force and is conveyed into the reeling machine through the heat output roller way. The method of reeling the stainless strip steel for the railway vehicle is characterize in that when the stainless strip steel is reeled, the cooling water at the front one second section of the heat output roller way is turned off after the head of the stainless strip steel is moved out of the tail stand of the fine rolling machine, the cooling water at the rear one second section of the heat output roller way is turned off after the head of the stainless strip steel is moved to the four tenth section of the heat output roller way, and the cooling water of the heat output roller way is turned on after the head of the stainless strip steel is moved into the reeling machine and is wound on the reeling cylinder. The method of reeling the stainless strip steel for the railway vehicle can prevent the surface of the stainless strip steel from being worn to have the defect.
Description
Technical field
The present invention relates to a kind of method for coiling of stainless strip steel for railway vehicle.
Background technology
Existing stainless strip steel for railway vehicle when take-up, stainless steel hot-rolling band steel is big by other stainless steel capital of water cooling after-contraction deformation ratio on the cold roller-way of layer, after the roller-way water quench, especially when being with steel toe portion not enter coiling machine, when coiling machine is not set up tension force, be with a section in the steel toe 80m of portion, red-black alternate uneven in temperature, the plate shape that presents local broken sea can appear, can cause the inhomogeneous friction of belt steel surface to produce blemish and become waste product after entering coiling machine, cause waste.
Summary of the invention
For the above-mentioned deficiency of the method for coiling that overcomes existing stainless strip steel for railway vehicle, the invention provides a kind ofly when rolling stock enters head one end of coiling machine with stainless steel band, avoid the inhomogeneous friction of belt steel surface to produce the method for coiling of blemish.
The method for coiling of this stainless strip steel for railway vehicle comprises following sequential steps:
I band steel toe portion goes out the last frame of finishing mill, transports through multistage thermal output roller-way and enters coiling machine;
The coiling machine that II rotates will be with steel to be wrapped on the reel;
Form tension force between the last rolling mill working roll of III coiler mandrel and finishing mill, follow-up band steel shuts out and passes through the thermal output roller-way from finishing mill and enters coiling machine under the tension force effect;
Its steps characteristic is:
With coiling machine winding steel the time, before band steel toe portion goes out the last frame of finishing mill, the cooling water of the thermal output roller-way of 1/2nd leading portion of roller-way length is closed, when the head of band steel advances to the thermal output roller-way of roller-way length 4/10ths, the cooling water of the thermal output roller-way of the back segment of roller-way length 1/2nd is closed, be wrapped on the reel when band steel toe portion enters coiling machine, the reel of coiling machine after the band steel is strained is opened the cooling water of thermal output roller-way.
General roller-way is 10 sections, when coiling machine winding steel, automatic control program is closed the cooling water of the 1st section to the 4th section thermal output roller-way, when the head of band steel advances to the 3rd section thermal output roller-way, the 5th section cooling water to the 10th section thermal output roller-way closed, be wrapped on the reel when band steel toe portion enters coiling machine, after the reel of coiling machine was strained the band steel, automatic control program was opened the cooling water of all the 1st to the 10th section thermal output roller-ways.
The present invention goes out finishing mill in band steel toe portion, do not enter coiling machine and be wrapped in reel and go forward, the band steel does not also have tension (when not setting up tension force) between the reel of rotation and last frame finishing mill, the band steel also is in when loosening state, caused plate shape sharply to be out of shape and the generation waveform for fear of the band steel by water cooling, must not contact water.After coiling machine pulling band steel connect tightly (the band steel is stretching) to the band steel, the roller-way cooling water was sprayed on the band steel again, because the band steel is stretching, the cooling of band steel evenly under the effect of the tension force of being with steel, can obviously alleviate the inhomogeneous deformation that is produced by water cooling, like this, the band steel does not produce waveform.
The present invention takes above-mentioned method for coiling, the head cooling of band steel evenly, avoid being with steel to be caused plate shape sharply to be out of shape and the generation waveform by water cooling, do not produce violent cold and hot distortion, plate shape is good when batching, and has eliminated the blemish that produces when batching, and has reduced the waste of band steel, the utilization rate of the band steel that improves has reduced production cost.Calculate with the stainless strip steel for railway vehicle of producing 30000 tons per year, compare with existing method for coiling, 1 year can reduce the waste product of 80000m, saves 1,500 ten thousand yuan.
The specific embodiment
Describe the specific embodiment of the method for coiling of this stainless strip steel for railway vehicle in detail below in conjunction with embodiment, but the specific embodiment of the method for coiling of this stainless strip steel for railway vehicle is not limited to following embodiment.
Embodiment
What present embodiment batched is the stainless strip steel for railway vehicle of label 1.4003, wide 1.5m, thick 4mm.What adopt is the 2250 type continuous hot-rolling mills that western mark company produces.
With coiling machine winding steel the time, before band steel toe portion goes out the last frame of finishing mill, automatic control program is closed the cooling water of the 1st section to the 4th section thermal output roller-way, when the head of band steel advances to the 3rd section thermal output roller-way, the 5th section cooling water to the 10th section thermal output roller-way closed, be wrapped on the reel when band steel toe portion enters coiling machine, after the reel of coiling machine was strained the band steel, automatic control program was opened the cooling water of all the 1st to the 10th section thermal output roller-ways.
Claims (1)
1. the method for coiling of a stainless strip steel for railway vehicle, it comprises following sequential steps:
I band steel toe portion goes out the last frame of finishing mill, transports through multistage thermal output roller-way and enters coiling machine;
The coiling machine that II rotates will be with steel to be wrapped on the reel;
Form tension force between the last rolling mill working roll of III coiler mandrel and finishing mill, follow-up band steel shuts out and passes through the thermal output roller-way from finishing mill and enters coiling machine under the tension force effect;
Its steps characteristic is:
With coiling machine winding steel the time, before band steel toe portion goes out the last frame of finishing mill, the cooling water of the thermal output roller-way of 1/2nd leading portion of roller-way length is closed, when the head of band steel advances to the thermal output roller-way of roller-way length 4/10ths, the cooling water of the thermal output roller-way of the back segment of roller-way length 1/2nd is closed, be wrapped on the reel when band steel toe portion enters coiling machine, the reel of coiling machine after the band steel is strained is opened the cooling water of thermal output roller-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100748844A CN101690950B (en) | 2009-07-11 | 2009-07-11 | Method of reeling stainless strip steel for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100748844A CN101690950B (en) | 2009-07-11 | 2009-07-11 | Method of reeling stainless strip steel for railway vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101690950A CN101690950A (en) | 2010-04-07 |
| CN101690950B true CN101690950B (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100748844A Active CN101690950B (en) | 2009-07-11 | 2009-07-11 | Method of reeling stainless strip steel for railway vehicle |
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| CN (1) | CN101690950B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581044B (en) * | 2012-02-10 | 2014-01-22 | 山西太钢不锈钢股份有限公司 | Special cooling method for ferritic stainless steel |
| CN104028582B (en) * | 2014-06-09 | 2016-05-11 | 日照博远非晶金属材料有限公司 | A kind of sheet metal strip captures technique |
| CN106475431B (en) * | 2016-11-28 | 2018-10-09 | 山西太钢不锈钢股份有限公司 | Improve the control method of hot rolling variety steel surface quality |
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2009
- 2009-07-11 CN CN2009100748844A patent/CN101690950B/en active Active
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| Publication number | Publication date |
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| CN101690950A (en) | 2010-04-07 |
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