CN104550230A - Novel black stainless steel strip rolling process and unit - Google Patents
Novel black stainless steel strip rolling process and unit Download PDFInfo
- Publication number
- CN104550230A CN104550230A CN201410848849.4A CN201410848849A CN104550230A CN 104550230 A CN104550230 A CN 104550230A CN 201410848849 A CN201410848849 A CN 201410848849A CN 104550230 A CN104550230 A CN 104550230A
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- Prior art keywords
- strips
- stainless steel
- band
- rolling
- jockey pulley
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- 238000005096 rolling process Methods 0.000 title claims abstract description 35
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 26
- 239000010935 stainless steel Substances 0.000 title claims abstract description 26
- 238000003466 welding Methods 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 15
- 238000005266 casting Methods 0.000 claims description 13
- 238000005260 corrosion Methods 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 claims description 10
- 230000002950 deficient Effects 0.000 claims description 3
- 238000005554 pickling Methods 0.000 abstract description 10
- 238000000137 annealing Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000003801 milling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Disclosed is a novel black stainless steel strip rolling process. The novel black stainless steel strip rolling process comprises the following steps of uncoiling a steel coil, straightening the head portion and the tail portion of the steel coil, cutting off unqualified strips and then welding the head portions and the tail portions of strips through a welding machine; feeding the strips into an entry loop through 1# tension rollers; after the strips are output from the entry loop, feeding the strips into an eighteen-roller continuous rolling unit via 2# tension rollers for continuous rolling, and rolling the strips into cold-rolled strips of a required thickness; then feeding the cold-rolled strips into an outlet loop sequentially via a cleaning and drying unit and 3# tension rollers, and after the strips are discharged from the outlet loop, feeding the strips into a recoiling machine sequentially via 4# tension rollers and a slitting shear; when the rolling diameter of the strips reaches a required value, slitting the strips at the slitting shear. According to the technical scheme of the novel black stainless steel strip rolling process, black stainless steel strips are directly rolled and then fed into a stainless steel hot-pickling and annealing line; due to the fact the thickness of the strips is reduced before the strips are fed into the stainless steel hot-pickling and annealing line, stainless steel strips of small specifications, which can be produced through multiple rolling processes, can be obtain within one rolling process, and further the production cost can be greatly reduced, and the production efficiency can be improved.
Description
Technical field
The invention belongs to steel rolling equipment field.
Background technology
Traditional stainless steel production technology is that stainless steel casting skin band first involves in row annealing and pickling by annealing and pickling unit to stainless steel casting skin, by annealing softening band, is removed the oxide layer of strip surface by pickling.Band (white skin) after annealing and pickling reaches finished product thickness by the rolling of cold mill complex multi-pass again, and some carry out after often needing intermediate annealing pickling compared with Thin Specs cold rollingly reaching finished product thickness again.The band reaching finished product thickness produces by finished products pickling unit the finished product that desired properties requires again.Traditional stainless-steel cold-rolling production procedure is long, and complex process, production cost is high.Often need multiple rolling process when especially producing the band of Thin Specs, cause production cost to remain high.In order to reduce intermediate annealing, reduce production cost, a kind of new type stainless steel. corrosion resistance cold-rolling process and unit thereof need be developed in pole.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes following technical scheme: a kind of new type stainless steel. corrosion resistance casting skin strip-rolling technique, comprises following operation: with uncoiler to coil of strip uncoiling.With straightener end to end straightening processing is carried out to coil of strip.Defective band is cut off with hydraulic shear.What shear band with welding machine welds end to end.Band after welding is by entering entry loop after 1# jockey pulley.Band out enters 18 roller Continuous mill train continuous rollings by 2# jockey pulley afterwards from entry loop, is rolled into the cold-strip of desired thickness.Band from Continuous mill train out after enter outlet looping by cleaning, drying unit, 3# jockey pulley successively.Band from outlet looping out after sequentially pass through 4# jockey pulley again, cut to cut and enter coiling machine.Coiling machine, strip coil rolling, when coil diameter reaches required size, is cut band cutting the place of cutting.One realizes new type stainless steel. corrosion resistance casting skin strip-rolling technique unit according to claim 1, comprise the following equipment be linked in sequence: uncoiler, straightener, hydraulic shear, welding machine, 1# jockey pulley, entry loop, 18 roller Continuous mill train, outlet looping, 4# jockey pulley, cut cut, coiling machine, it is characterized in that: between entry loop and 18 roller Continuous mill train, add 2# jockey pulley, and order adds cleaning, drying unit and 3# jockey pulley between 18 roller Continuous mill train and outlet looping.18 roller Continuous mill train (8) can be that two frames connect, and also can be that three frames connect.
Adopt a kind of new type stainless steel. corrosion resistance casting skin strip-rolling technique of the present invention of technique scheme and unit thereof to stainless steel casting skin volume Direct Rolling, the band after rolling enters stainless steel hot pickling annealed wire again.Owing to entering the thickness decreasing band before annealed wire washed by hot acid, make the original stainless strip compared with Thin Specs needing multiple rolling process to produce only need a rolling process just can realize, production cost is greatly saved, and enhances productivity.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is a kind of new type stainless steel. corrosion resistance casting skin of the present invention strip-rolling flow sheet.
In figure: 1, uncoiler, 2, straightener, 3, hydraulic shear, 4, welding machine, 5,1# jockey pulley, 6, entry loop, 7,2# jockey pulley, 8,18 roller Continuous mill train, 9, cleaning, drying unit, 10,3# jockey pulley, 11, outlet looping, 12,4# jockey pulley, 13, cut and cut, 14, coiling machine.
Detailed description of the invention
Rolling mill practice of the present invention and unit are used for stainless steel casting skin (hot rolling) band that rolling difficulty is out of shape, and are rolled, to obtain the cold-strip of desired thickness and plate shape before hot rolling stainless steel strip carries out annealing and pickling to it.This unit have employed the technology mode of Total continuity endless rolling.Be provided with two uncoiling in unit inlet, be provided with welding machine can welding front and back two coiled strip simultaneously end to end, realizes continuous seepage.Continuous mill train adopts two or three frame 18 roller cascade.Entrance, the outlet of Continuous mill train are equipped with kink, to ensure that milling train is not shut down when entrance welding and outlet are cut.Entrance and the outlet of tandem mill arrange jockey pulley, to improve the tension force of tandem mill entrance and outlet, also adopt hightension simultaneously, improved the percentage pass reduction of milling train by hightension between frame.Skid in order to avoid milling train outlet strip surface emulsion residue causes milling train to export jockey pulley, establish cleaning, drying unit in milling train outlet.Principle of the present invention is illustrated: hot rolling raw material coil of strip carries out uncoiling by uncoiler 1 referring now to Fig. 1, band end to end after straightener 2 carries out straightening processing, cut off defective band by hydraulic shear 3, then by welding machine 4, band is welded end to end, to realize continuous seepage.Band after welding is by 5 entering entry loop 6 after 1# jockey pulley.Band out enters by 2# jockey pulley 7 18 roller Continuous mill train 8 continuous rollings that two frames or three frames connect to form afterwards from entry loop 6, is rolled into the cold-strip of desired thickness.Band from Continuous mill train 8 out after enter outlet looping 11 by cleaning, drying unit 9,3# jockey pulley 10 successively.Band from outlet looping 11 out after again by 4# jockey pulley 12, cut and cut 13, enter coiling machine 14.Coiling machine 14 is strip coil rolling, and when coil diameter reaches required size, band is cut 13 places and cut cutting.
The above; be only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited thereto; all personnel being familiar with this method field, within the scope of method disclosed by the invention, are equal to replace or change according to method scheme of the present invention and design of the present invention thereof and all should be encompassed within protection scope of the present invention.
Claims (4)
1. a new type stainless steel. corrosion resistance casting skin strip-rolling technique, comprises following operation:
1., use uncoiler (1) to coil of strip uncoiling;
2., with straightener (2) end to end straightening processing is carried out to coil of strip;
3., defective band is cut off with hydraulic shear (3);
What 4., shear band with welding machine (4) welds end to end;
5. the band, after welding enters entry loop (6) by after 1# jockey pulley (5);
6., band out enters 18 roller Continuous mill train (8) continuous rollings by 2# jockey pulley (7) afterwards from entry loop (6), is rolled into the cold-strip of desired thickness;
7. band from Continuous mill train (8) out after enter outlet looping (11) by cleaning, drying unit (9), 3# jockey pulley (10) successively;
8., band from outlet looping (11) out after sequentially pass through 4# jockey pulley (12) again, cut and cut (13) and enter coiling machine (14);
9. coiling machine (14) is strip coil rolling, when coil diameter reaches required size, cuts (13) place and cuts band cutting.
2. one kind realizes new type stainless steel. corrosion resistance casting skin strip-rolling technique unit according to claim 1, comprise the following equipment be linked in sequence: uncoiler (1), straightener (2), hydraulic shear (3), welding machine (4), 1# jockey pulley (5), entry loop (6), 18 roller Continuous mill train (8), outlet looping (11), 4# jockey pulley (12), cut and cut (13), coiling machine (14), it is characterized in that: between described entry loop (6) and 18 roller Continuous mill train (8), add 2# jockey pulley (7), and order adds cleaning, drying unit (9) and 3# jockey pulley (10) between described 18 roller Continuous mill train (8) and outlet looping (11).
3. new type stainless steel. corrosion resistance casting skin strip-rolling technique unit according to claim 2, is characterized in that: described 18 roller Continuous mill train (8) are that two frames connect.
4. new type stainless steel. corrosion resistance casting skin strip-rolling technique unit according to claim 2, is characterized in that: described 18 roller Continuous mill train (8) are that three frames connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848849.4A CN104550230A (en) | 2014-12-29 | 2014-12-29 | Novel black stainless steel strip rolling process and unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848849.4A CN104550230A (en) | 2014-12-29 | 2014-12-29 | Novel black stainless steel strip rolling process and unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104550230A true CN104550230A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410848849.4A Pending CN104550230A (en) | 2014-12-29 | 2014-12-29 | Novel black stainless steel strip rolling process and unit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962074A (en) * | 2017-12-04 | 2018-04-27 | 中冶南方工程技术有限公司 | A kind of stainless steel cold-rolled plate continuous process system and method |
| CN107983770A (en) * | 2016-10-27 | 2018-05-04 | 福建宏旺实业有限公司 | A kind of hot acid of stainless steel washes production technology |
| CN107983773A (en) * | 2016-10-27 | 2018-05-04 | 福建宏旺实业有限公司 | A kind of again rolling mill practice of hot-rolled stainless steel |
| CN108500060A (en) * | 2018-03-27 | 2018-09-07 | 中冶陕压重工设备有限公司 | A kind of zirconium plate, the rolling mill practice arrangement with cold mill complex and milling method |
| CN110802111A (en) * | 2018-08-04 | 2020-02-18 | 山西建龙实业有限公司 | Technological method for producing hard-rolled coil by simply and continuously rolling narrow band steel with acid |
| CN111673378A (en) * | 2020-05-25 | 2020-09-18 | 广西先进铝加工创新中心有限责任公司 | A kind of production method and system of aluminum alloy coil/plate |
| CN113502383A (en) * | 2021-06-18 | 2021-10-15 | 鞍钢联众(广州)不锈钢有限公司 | 409L stainless steel cold continuous rolling process method |
| CN113600610A (en) * | 2021-08-05 | 2021-11-05 | 无锡桑德威克金属制品有限公司 | Production process of high-tensile-strength super-flat super-straight stainless steel flat wire |
| CN114161165A (en) * | 2021-11-30 | 2022-03-11 | 丹阳市龙鑫合金有限公司 | Heat treatment system for alloy strip and treatment method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983770A (en) * | 2016-10-27 | 2018-05-04 | 福建宏旺实业有限公司 | A kind of hot acid of stainless steel washes production technology |
| CN107983773A (en) * | 2016-10-27 | 2018-05-04 | 福建宏旺实业有限公司 | A kind of again rolling mill practice of hot-rolled stainless steel |
| CN107983770B (en) * | 2016-10-27 | 2019-09-13 | 福建宏旺实业有限公司 | A kind of hot acid of stainless steel washes production technology |
| CN107983773B (en) * | 2016-10-27 | 2019-10-29 | 福建宏旺实业有限公司 | A kind of rolling mill practice again of hot-rolled stainless steel |
| CN107962074A (en) * | 2017-12-04 | 2018-04-27 | 中冶南方工程技术有限公司 | A kind of stainless steel cold-rolled plate continuous process system and method |
| CN108500060B (en) * | 2018-03-27 | 2024-04-09 | 中冶陕压重工设备有限公司 | Rolling process arrangement and rolling method of zirconium plate and strip cold rolling unit |
| CN108500060A (en) * | 2018-03-27 | 2018-09-07 | 中冶陕压重工设备有限公司 | A kind of zirconium plate, the rolling mill practice arrangement with cold mill complex and milling method |
| CN110802111A (en) * | 2018-08-04 | 2020-02-18 | 山西建龙实业有限公司 | Technological method for producing hard-rolled coil by simply and continuously rolling narrow band steel with acid |
| CN110802111B (en) * | 2018-08-04 | 2024-06-04 | 山西建龙实业有限公司 | Technological method for producing hard coil by simple acid-matched continuous rolling of narrow strip steel |
| CN111673378A (en) * | 2020-05-25 | 2020-09-18 | 广西先进铝加工创新中心有限责任公司 | A kind of production method and system of aluminum alloy coil/plate |
| CN113502383A (en) * | 2021-06-18 | 2021-10-15 | 鞍钢联众(广州)不锈钢有限公司 | 409L stainless steel cold continuous rolling process method |
| CN113600610A (en) * | 2021-08-05 | 2021-11-05 | 无锡桑德威克金属制品有限公司 | Production process of high-tensile-strength super-flat super-straight stainless steel flat wire |
| CN114161165A (en) * | 2021-11-30 | 2022-03-11 | 丹阳市龙鑫合金有限公司 | Heat treatment system for alloy strip and treatment method thereof |
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Application publication date: 20150429 |
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