CN101586181B - Production method of stainless steel soft-state strip - Google Patents
Production method of stainless steel soft-state strip Download PDFInfo
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- CN101586181B CN101586181B CN2009100324902A CN200910032490A CN101586181B CN 101586181 B CN101586181 B CN 101586181B CN 2009100324902 A CN2009100324902 A CN 2009100324902A CN 200910032490 A CN200910032490 A CN 200910032490A CN 101586181 B CN101586181 B CN 101586181B
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Abstract
The invention relates to a production method of stainless steel strip, particularly relates to a production method of stainless steel soft-state strip that used for producing composited tube strip of 0.08 mm thickness. According to the invention provided technical scheme, the production method of stainless steel soft-state strip includes following steps: a. rolling: rolling for two procedures, proceeding a first annealing after the first rolling procedure; proceeding a second rolling procedure to the stainless strip after the first annealing; and then proceeding a second annealing; b. stretching: base of the stretching machine is provided with bottom working rolls arranged uniformly and horizontally, articulating rocker arm onto the base, the rocker arm has uniformly arranged top working rolls; the top working rolls corresponds to the bottom working rolls one by one; when strengthing, penetrating the stainless stell strip to the bottom working rolls of the strengthing machine directly,the rocker arm moving downward and leading the top working rolls moving downward. Strip products with high-quality can be produced by using the method.
Description
Technical field
The suitable production production method that relates to a kind of Stainless Steel Band of the present invention, a kind of production method of stainless steel soft-state strip specifically is mainly used in the production of multiple-unit tube strips such as thickness 0.08mm.
Background technology
In recent years, the variation of essence has taken place in the occupation rate of China's stainless steel in the world market, the speedup of the present stainless steel production capacity of China is faster than the speedup of demand, the stainless steel production capacity surplus, the stainless steel industry is faced with severe tests, competition between enterprise is abominable day by day, one after another with the development of own product orientation at high, essence, strip.As everyone knows, production high, smart, strip need drop into a large amount of financial resources and material resources, and this is very unpractical for medium and small enterprise to purchase novel production device.The equipment of medium and small enterprise is limited, uses common common production line to be difficult to produce high-quality product, the easy-to-draw wrinkle of plate face when mainly showing as annealing, and easy drawing down and speed only can reach 15～20m/min during 23 roller drawing and straightening machine straightenings, influence production efficiency.
Summary of the invention
The objective of the invention is to design a kind of production method of stainless steel soft-state strip, utilize this method can produce high-quality strip product.
According to technical scheme provided by the invention, the production method of described stainless steel soft-state strip comprises the steps:
A, rolling: the thickness 0.8～1.2mm of Stainless Steel Band, width 200～300mm; When rolling, need on the roll of milling train and Stainless Steel Band, spray ROLLING OIL; The rolling rolling process of doing twice, the draft of rolling process is at 70-78% for the first time; The draft of rolling process is 60-70% for the second time; After first time rolling process, carry out the annealing first time; After annealing for the first time, more described Stainless Steel Band is carried out the rolling process second time; And then carry out the second time and anneal;
Described first time of annealing is all carried out according to following technology with annealing process for the second time, and used annealing furnace is horizontal tubulose retort furnace;
Described Stainless Steel Band is put into horizontal tubulose retort furnace, 1000～1050 ℃ of annealing temperatures, the speed 15～18m/min of the horizontal tubulose retort furnace of Stainless Steel Band process, annealing time 30～50s, the after wind of coming out of the stove is chilled to normal temperature; Described Stainless Steel Band is that the alkali lye of 3-5% sprays with 60～70 ℃, concentration before the advance and retreat stove; Filter, dry with clear water again;
B, straightening: evenly horizontally disposed bottom working roll is arranged on the base of straightening machine, and hinged rocking arm on base has the top working roll of even layout on rocking arm; Described top working roll is corresponding one by one with described bottom working roll; When straightening, Stainless Steel Band is directly penetrated on the bottom working roll of straightening machine, described rocker arm moving downward drives top working roll and moves down; In described rocker arm moving downward during to working order, described top working roll is pressed in Stainless Steel Band on the described bottom working roll, described top working roll lays respectively between adjacent two bottom working rolls, and, 3～4 ° at pitch angle is arranged between the line of centres of described top working roll and the line of centres of bottom working roll; Start the straightening machine, make the straightening speed of Stainless Steel Band in the straightening machine reach 50～60m/min, with the Stainless Steel Band straightening to planeness≤0.008mm.
After straightening, the Vickers' hardness of Stainless Steel Band is: HV
0.2=160～170.Each rolling process includes 4 passages, and the draft of each passage is respectively: the first passage 30-32%, the second passage 26-24%, the 3rd passage 22-20%, four-pass 18-20%; In second time rolling process, the draft of each passage is 25-30%.
Advantage of the present invention is: after utilizing method of the present invention, can reduce the input of resource, improve the production efficiency of strip, and reduce production costs.
Embodiment
Concrete technology is as follows:
A, rolling, annealing
Thickness 0.8～the 1.2mm of Stainless Steel Band, width 200～300mm; When rolling, need on the roll of milling train and Stainless Steel Band, spray ROLLING OIL; The rolling rolling process of doing twice, the draft of first rolling process is at 70-78%; The draft of rolling process is 60-70% for the second time; Each rolling process includes 4 passages, and each percentage pass reduction is respectively: the first road 30-32%, the second road 26-24%, the 3rd road 22-20%, the 4th road 18-20%, by that analogy.The first road 25-30% of rolling process for the second time, other passages are identical.
The draft of described passage is meant Stainless Steel Band behind described passage rolling, the thickness a of Stainless Steel Band with rolling without described passage before the ratio of thickness b of Stainless Steel Band: (1-a)/b.In like manner, the draft of described rolling process also be meant through the thickness a of Stainless Steel Band after the described rolling process with rolling without described rolling process before the ratio of thickness b of Stainless Steel Band: (1-a)/b.
After each rolling process finishes, anneal, annealing is for the first time all carried out according to following technology with annealing process for the second time, and used annealing furnace can adopt horizontal tubulose retort furnace;
Described Stainless Steel Band is put into horizontal tubulose retort furnace, 1000～1050 ℃ of annealing temperatures, the speed 15～18m/min of the horizontal tubulose retort furnace of Stainless Steel Band process, annealing time 30～50s, the after wind of coming out of the stove is chilled to normal temperature; The alkali lye that described Stainless Steel Band is 3-5% with 60～70 ℃ of concentration before the advance and retreat stove sprays, filters the back oven dry with clear water again;
B, straightening: evenly horizontally disposed bottom working roll is arranged on the base of straightening machine, and hinged rocking arm on base has the top working roll of even layout on rocking arm; Described top working roll is corresponding one by one with described bottom working roll; When straightening, Stainless Steel Band is directly penetrated on the bottom working roll of straightening machine, described rocker arm moving downward drives top working roll and moves down; In described rocker arm moving downward during to working order, described top working roll is pressed in Stainless Steel Band on the described bottom working roll, described top working roll lays respectively between adjacent two bottom working rolls, and, 3～4 ° at pitch angle is arranged between the line of centres of described top working roll and the line of centres of bottom working roll; Start the straightening machine, make the straightening speed of Stainless Steel Band in the straightening machine reach 50～60m/min, with the Stainless Steel Band straightening to planeness≤0.008mm.
Vickers' hardness through the Stainless Steel Band after the straightening is: HV
0.2=160～170.
The operation of rolling with the thickness 0.8 of Stainless Steel Band is an example, Stainless Steel Band is behind first breaker roll, its thickness is 0.52mm, and through behind second breaker roll to the, five breaker rolls rolling, the thickness of Stainless Steel Band is followed successively by 0.4mm, 0.33mm, 0.27mm and 0.23mm; Carry out the annealing first time then; After annealing for the first time, more described Stainless Steel Band is rolled, through behind the 6th breaker roll to the nine breaker rolls rolling, the thickness of described Stainless Steel Band is followed successively by 0.175mm, 0.136mm, 0.106mm, 0.08mm; And then carry out the second time and anneal.
Claims (3)
1. the production method of stainless steel soft-state strip is characterized in that:
A, rolling
Thickness 0.8～the 1.2mm of Stainless Steel Band, width 200～300mm; When rolling, need on the roll of milling train and Stainless Steel Band, spray ROLLING OIL; The rolling rolling process of doing twice, the draft of rolling process is at 70-78% for the first time; The draft of rolling process is 60-70% for the second time; After first time rolling process, carry out the annealing first time; After annealing for the first time, more described Stainless Steel Band is carried out the rolling process second time; And then carry out the second time and anneal;
Described first time of annealing is all carried out according to following technology with annealing process for the second time, and used annealing furnace is horizontal tubulose retort furnace;
Described Stainless Steel Band is put into horizontal tubulose retort furnace, 1000～1050 ℃ of annealing temperatures, the speed 15～18m/min of the horizontal tubulose retort furnace of Stainless Steel Band process, annealing time 30～50s, the after wind of coming out of the stove is chilled to normal temperature; Described Stainless Steel Band is that the alkali lye of 3-5% sprays with 60～70 ℃, concentration before the advance and retreat stove; Filter, dry with clear water again;
B, straightening: evenly horizontally disposed bottom working roll is arranged on the base of straightening machine, and hinged rocking arm on base has the top working roll of even layout on rocking arm; Described top working roll is corresponding one by one with described bottom working roll; When straightening, Stainless Steel Band is directly penetrated on the bottom working roll of straightening machine, described rocker arm moving downward drives top working roll and moves down; In described rocker arm moving downward during to working order, described top working roll is pressed in Stainless Steel Band on the described bottom working roll, described top working roll lays respectively between adjacent two bottom working rolls, and, 3～4 ° at pitch angle is arranged between the line of centres of described top working roll and the line of centres of bottom working roll; Start the straightening machine, make the straightening speed of Stainless Steel Band in the straightening machine reach 50～60m/min, with the Stainless Steel Band straightening to planeness≤0.008mm.
2. the production method of stainless steel soft-state strip according to claim 1, it is characterized in that: after straightening, the Vickers' hardness of Stainless Steel Band is: HV
0.2=160～170.
3. the production method of stainless steel soft-state strip according to claim 1, it is characterized in that: each rolling process includes 4 passages; Wherein, the draft of each passage is respectively in the rolling process first time: the first passage 30-32%, the second passage 26-24%, the 3rd passage 22-20%, four-pass 18-20%; In second time rolling process, the draft of each passage is 25-30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100324902A CN101586181B (en) | 2009-06-18 | 2009-06-18 | Production method of stainless steel soft-state strip |
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| CN2009100324902A CN101586181B (en) | 2009-06-18 | 2009-06-18 | Production method of stainless steel soft-state strip |
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| CN101586181A CN101586181A (en) | 2009-11-25 |
| CN101586181B true CN101586181B (en) | 2010-09-15 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411610A (en) * | 1991-12-20 | 1995-05-02 | Nippon Steel Corporation | High-strength stainless steel foil for corrugating and process for producing the same |
| CN1424154A (en) * | 2002-12-31 | 2003-06-18 | 赵新林 | Process and apparatus for producing super-thin precisive band steel |
| CN101229552A (en) * | 2008-02-18 | 2008-07-30 | 宁波永正精密不锈钢有限公司 | Method of manufacturing stainless steel foil used on integrated circuit rack |
-
2009
- 2009-06-18 CN CN2009100324902A patent/CN101586181B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411610A (en) * | 1991-12-20 | 1995-05-02 | Nippon Steel Corporation | High-strength stainless steel foil for corrugating and process for producing the same |
| CN1424154A (en) * | 2002-12-31 | 2003-06-18 | 赵新林 | Process and apparatus for producing super-thin precisive band steel |
| CN101229552A (en) * | 2008-02-18 | 2008-07-30 | 宁波永正精密不锈钢有限公司 | Method of manufacturing stainless steel foil used on integrated circuit rack |
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| CN101586181A (en) | 2009-11-25 |
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