CN102936646A - Tension removing device for precise stainless steel strip - Google Patents
Tension removing device for precise stainless steel strip Download PDFInfo
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- CN102936646A CN102936646A CN201210472461XA CN201210472461A CN102936646A CN 102936646 A CN102936646 A CN 102936646A CN 201210472461X A CN201210472461X A CN 201210472461XA CN 201210472461 A CN201210472461 A CN 201210472461A CN 102936646 A CN102936646 A CN 102936646A
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- stainless steel
- steel strip
- tensioning roller
- heating container
- roller system
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Abstract
The invention relates to a tension removing device for a precise stainless steel strip. The tension removing device comprises an uncoiling device, a coiling device and a heating box, wherein the heating box is positioned between the uncoiling device and the coiling device, and the stainless steel strip on the uncoiling device enters a furnace body through a first tension roller and then enters the uncoiling device through a second tension roller. The tension removing device can fully release internal stress of the precise stainless steel strip.
Description
Technical field
The present invention relates to accurate stainless steel band cold rolling technology field, particularly relate to a kind of precise stainless steel strip and remove tension device.
Background technology
For accurate stainless steel strip, the template of steel band and internal stress are the important factors that determines quality product.But generally, the precision cold-rolled Stainless Steel Band all limit wave etc. problem can occur through template behind aximal deformation value rolling, in the situation that cold-rolling process carries out a strong operation (carrying out pulling force leveling steel band at hightension) after finishing for addressing these problems general technology, then carry out entire volume steel band heating destressing treatment process, the former purpose is to adjust material template (trimming wave), latter's purpose is to remove the internal stress of material, yet there is a problem in such technique, because the local generation of material viscous deformation in a strong process, also can produce internal stress, and the heating destressing when processing the entire volume material curl placement, inner ring and outer ring are heated inhomogeneous, steel band also presents circular arc type and curls shape, when using, loose winding can't discharge, this can cause steel band to deform in later stage impact briquetting precision component and etching precision component process, affects the dimensional precision of final precision component, has reduced quality and the quality of precision parts.
Summary of the invention
Technical problem to be solved by this invention provides a kind of precise stainless steel strip and removes tension device, can fully discharge internal stress.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of accurate stainless steel to remove tension device, comprise unwinding device, winding device and heating container, described heating container is between described unwinding device and winding device; Stainless Steel Band on the described unwinding device enters described heating container through the first tensioning roller system, sends into winding device through the second tensioning roller system again.
Described the first tensioning roller system and the second tensioning roller system are S type tensioning roller system.
Described the first tensioning roller system and the second tensioning roller system all are comprised of two groups of S type tensioning roller groups that are comprised of two tensioning rollers.
Described heating container inside is connected with the shielding gas for anti-oxidation.
The working temperature of described heating container is 300-650 degree centigrade.
The working temperature of described heating container is 500 degrees centigrade.
The time that described Stainless Steel Band stops in heating container is 1 minute to 10 minutes.
The tension force that described the first tensioning roller system and the second tensioning roller system apply to Stainless Steel Band is the steel band pull-off force of 0.4 times of 0.2 –.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, have following advantage and positively effect: the present invention utilizes frictional force that tension force is provided by S forming roll system, four pairs can provide needed tension force altogether, make in body of heater with steel in the situation that hightension heats destressing processes, when it is fully evened up, discharge its inner internal stress.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
The production stage of existing Stainless Steel Band is as follows:
(1) material (chemical composition or the trade mark) is determined.According to the purposes of product, the difference of mechanical performance index, or customer requirements, select the stainless steel of different chemical composition or the trade mark.
(2) get the raw materials ready.Select the suitable stainless steel cold-rolled steel band blank of thickness.
(3) breaking down, work in-process are rolling.According to the performance index of product, determine " work in-process → finished product " rolling deflection; According to thickness, the deflection of finished product, determine the thickness of " work in-process "; Adopt the precision cold-rolled unit, Technology is rolled into " stainless steel cold-rolled steel band work in-process blank " with " the stainless steel cold-rolled steel band blank that thickness is suitable " routinely.
(4) solution annealing (also being referred to as Full Annealing).According to the thickness of " stainless steel cold-rolled steel band work in-process blank ", Technology is annealed to the stainless steel cold-rolled steel band of " work in-process " routinely, makes that steel strip substrate is softening, homogeneous microstructure.
(5) finally rolling, finished product is rolling.According to " work in-process → finished product " rolling reduction of determining, adopt the precision cold-rolled unit, Technology routinely is rolled into " stainless steel cold-rolled steel band work in-process blank " " the stainless steel cold-rolled steel band finished product " of performance, the requirement of gauge symbol.
(6) the finished product template is corrected, the destressing operation, and this work is optional operation, because the stainless steel strip purposes is different, require difference, this class operation is optional operation, for the band steel of having relatively high expectations, normally adopt the straightening of hightension room temperature after, carry out again bell furnace destressing operation.Device provided by the present invention is exactly in order to realize both at same equipment, the purpose of finishing in the same operation.
Embodiments of the present invention relate to a kind of accurate stainless steel and remove tension device, as shown in Figure 1, comprise unwinding device, winding device and heating container, and described heating container is between described unwinding device and winding device; Stainless Steel Band on the described unwinding device enters described heating container through the first tensioning roller system, sends into winding device through the second tensioning roller system again.
Wherein, the inner core of unwinding device can be the sleeve of 300mm-500mm, directly with stainless steel winding material loading herein.Described the first tensioning roller system and the second tensioning roller system all are comprised of two groups of S type tensioning roller groups that are comprised of two tensioning rollers, system provides tension force by frictional force by the S forming roll, four pairs can provide needed tension force altogether, make in heating container with steel in the situation that carry out stress relief annealing than hightension, when it is fully evened up, remove its inner internal stress.When work, the working temperature of described heating container is 300-650 degree centigrade, and the inner shielding gas that is connected with for anti-oxidation.Winding device is mutually corresponding with unwinding device, as the coil of strip blanking equipment.Owing to prior art can't realize upper fully smooth Stainless Steel Band how much, therefore existing Stainless Steel Band all is the microwave shape wave, and the planeness of the stainless steel belt that this device of process makes can reach h/l=1/1000, and wherein h represents wave height, and l represents wavelength.
Further specify the present invention below by concrete example, testing installation adopts the tension device of heating container and two ends.
Embodiment 1: experimental procedure: at first be ready to 290 wide material and 600 wide material, carry out the technological experiment of belt tension at heating container, experiment parameter has 4 kinds:
When technological experiment, two ends of heating container add the tension mode of tension adjustment, and the tension force of employing reaches (the steel band pull-off force that is about 0.4 times of 0.2 –) about 7KN.
Experimental result:
1: the random sampling analysis:
On through the heat treated sheet material of destressing, get at random 4-5 sample along rolling direction, process through thinning single surface, observed the warpage degree, go qualitatively to analyze polytechnic destressing effect and see Table 1, draw a preliminary conclusion.
| Sample number | Thickness before the attenuate | Thickness behind the attenuate | Thickness thinning | The perk degree | Warpage rate (perk height/attenuate length %) |
| 1 | 0.132 | 0.097 | 0.035 | 6 | 12.24 |
| 2 | 0.136 | 0.100 | 0.036 | 5 | 11.90 |
| 3 | 0.128 | 0.101 | 0.027 | 1 | 2 |
| 4 | 0.134 | 0.101 | 0.033 | 5 | 11.6 |
| 5 (being untreated) | 0.131 | 0.087 | 0.044 | 18 | 46.15 |
Table 1
2 perpendicular to the rolling direction sampling analysis:
Under the sample of four kinds of different states being cut out on perpendicular to rolling direction, and under equivalent environment, carry out the attenuate test:
| Sample number | Thickness before the attenuate | Thickness behind the attenuate | Thickness thinning | The perk degree | Warpage rate (perk height/attenuate length %) |
| 1 | 0.133 | 0.097 | 0.036 | 2 | 4.35 |
| 2 | 0.132 | 0.093 | 0.039 | 2 | 4.37 |
| 3 | 0.129 | 0.084 | 0.035 | 0 | 0 |
| 4 | 0.133 | 0.101 | 0.032 | 3 | 6.25 |
Table 2
As seen no matter be which kind of technique, similar perpendicular to the resulting result of rolling direction sampling, all do not have larger residual tensions impact, this can regard as because crystal grain mainly is elongated in rolling direction, so tension force is mainly reflected in along on the rolling direction.
The situation of the identical attenuate test of same area on 3 rolling directions:
Further take a sample along rolling direction at 4 kinds of samples, carry out the attenuate test:
| Sample number | Thickness before the attenuate | Thickness behind the attenuate | Thickness thinning | The perk degree | Warpage rate (perk height/attenuate length %) |
| 1 | 0.135 | 0.101 | 0.034 | 3 | 6.66 |
| 2 | 0.134 | 0.104 | 0.030 | 6 | 13.33 |
| 3 | 0.136 | 0.099 | 0.037 | 1 | 2.38 |
| 4 | 0.131 | 0.098 | 0.033 | 1 | 2.38 |
Table 3
As seen in the tension force condition, and heat the sample of getting at the material middle portion in the sufficient situation and fall 0.03mm at attenuate, approximately substantially pasting paper during 24% left and right sides, perk is 1 millimeter only; Obviously do not improve and heat inadequate situation perk degree.
Be not difficult to find, the present invention utilizes frictional force that tension force is provided by S forming roll system, four pairs can provide needed tension force altogether, being in the situation than hightension with steel in heating container heated, but the most of tension force in the inside of charge releasing belt steel, when it was fully evened up, inner residual tensions was reduced to minimum.
Claims (8)
1. a precise stainless steel strip removes tension device, comprises unwinding device (1), winding device (2) and heating container (3), it is characterized in that, described heating container (3) is positioned between described unwinding device (1) and the winding device (2); Stainless Steel Band on the described unwinding device (1) is that (4) enter described heating container (3) through the first tensioning roller, sends into winding device (2) through the second tensioning roller system (5) again.
2. precise stainless steel strip according to claim 1 removes tension device, it is characterized in that, described the first tensioning roller system (4) and the second tensioning roller system (5) are S type tensioning roller system.
3. precise stainless steel strip according to claim 2 removes tension device, it is characterized in that, described the first tensioning roller system (4) and the second tensioning roller system (5) all are comprised of two groups of S type tensioning roller groups that are comprised of two tensioning rollers.
4. precise stainless steel strip according to claim 1 removes tension device, it is characterized in that, described heating container (3) inside is connected with the shielding gas for anti-oxidation.
5. precise stainless steel strip according to claim 1 removes tension device, it is characterized in that, the working temperature of described heating container (3) is 300-650 degree centigrade.
6. precise stainless steel strip according to claim 5 removes tension device, it is characterized in that, the working temperature of described heating container (3) is 500 degrees centigrade.
7. precise stainless steel strip according to claim 1 removes tension device, it is characterized in that, the time that described Stainless Steel Band stops in heating container is 1 minute to 10 minutes.
8. precise stainless steel strip according to claim 1 removes tension device, it is characterized in that, the tension force that described the first tensioning roller system (4) and the second tensioning roller system (5) apply to Stainless Steel Band is the steel band pull-off force of 0.4 times of 0.2 –.
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| CN201210472461XA CN102936646A (en) | 2012-11-20 | 2012-11-20 | Tension removing device for precise stainless steel strip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319193A (en) * | 2016-09-30 | 2017-01-11 | 永鑫精密材料（无锡）有限公司 | Low-temperature distressing thermal treatment process for precise cold-rolled extremely-thin stainless steel strip |
| CN108893584A (en) * | 2018-06-26 | 2018-11-27 | 江阴康瑞成型技术科技有限公司 | The online destressing production technology of austenitic stainless steel bar sketch plate |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57104631A (en) * | 1980-12-22 | 1982-06-29 | Sumitomo Metal Ind Ltd | Method for controlling plate width in continuous heating furnace for steel strip |
| JPH03120318A (en) * | 1989-10-03 | 1991-05-22 | Nippon Steel Corp | Continuous annealing equipment for grain-oriented magnetic steel strip |
| JP2006274283A (en) * | 2005-03-28 | 2006-10-12 | Jfe Steel Kk | Method for controlling tension in magnetic steel sheet production line |
| CN101961740A (en) * | 2010-09-30 | 2011-02-02 | 赵新林 | Stretch bending and straightening equipment for strips for nickel-metal hydride battery negative substrates |
| CN102212659A (en) * | 2011-05-03 | 2011-10-12 | 佛山市高明基业冷轧钢板有限公司 | Composite machine set with functions of producing annealing plate and electric steel |
| US8043984B2 (en) * | 2003-12-31 | 2011-10-25 | Kimberly-Clark Worldwide, Inc. | Single sided stretch bonded laminates, and methods of making same |
| CN102514302A (en) * | 2011-11-24 | 2012-06-27 | 奥瑞金包装股份有限公司 | Laminated metal plate as well as production method and production device thereof |
| CN202519311U (en) * | 2012-04-13 | 2012-11-07 | 永鑫精密材料（无锡）有限公司 | Micro-tension control device |
-
2012
- 2012-11-20 CN CN201210472461XA patent/CN102936646A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57104631A (en) * | 1980-12-22 | 1982-06-29 | Sumitomo Metal Ind Ltd | Method for controlling plate width in continuous heating furnace for steel strip |
| JPH03120318A (en) * | 1989-10-03 | 1991-05-22 | Nippon Steel Corp | Continuous annealing equipment for grain-oriented magnetic steel strip |
| US8043984B2 (en) * | 2003-12-31 | 2011-10-25 | Kimberly-Clark Worldwide, Inc. | Single sided stretch bonded laminates, and methods of making same |
| JP2006274283A (en) * | 2005-03-28 | 2006-10-12 | Jfe Steel Kk | Method for controlling tension in magnetic steel sheet production line |
| CN101961740A (en) * | 2010-09-30 | 2011-02-02 | 赵新林 | Stretch bending and straightening equipment for strips for nickel-metal hydride battery negative substrates |
| CN102212659A (en) * | 2011-05-03 | 2011-10-12 | 佛山市高明基业冷轧钢板有限公司 | Composite machine set with functions of producing annealing plate and electric steel |
| CN102514302A (en) * | 2011-11-24 | 2012-06-27 | 奥瑞金包装股份有限公司 | Laminated metal plate as well as production method and production device thereof |
| CN202519311U (en) * | 2012-04-13 | 2012-11-07 | 永鑫精密材料（无锡）有限公司 | Micro-tension control device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319193A (en) * | 2016-09-30 | 2017-01-11 | 永鑫精密材料（无锡）有限公司 | Low-temperature distressing thermal treatment process for precise cold-rolled extremely-thin stainless steel strip |
| CN106319193B (en) * | 2016-09-30 | 2018-07-06 | 永鑫精密材料（无锡）有限公司 | The very thin stainless steel band low temperature destressing heat treatment technique of precision cold-rolled |
| CN108893584A (en) * | 2018-06-26 | 2018-11-27 | 江阴康瑞成型技术科技有限公司 | The online destressing production technology of austenitic stainless steel bar sketch plate |
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Application publication date: 20130220 |