CN103567222B - A kind of iron and steel and aluminium alloy plate carries product hot rolling mixed production line and production technology - Google Patents
A kind of iron and steel and aluminium alloy plate carries product hot rolling mixed production line and production technology Download PDFInfo
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- CN103567222B CN103567222B CN201310475060.4A CN201310475060A CN103567222B CN 103567222 B CN103567222 B CN 103567222B CN 201310475060 A CN201310475060 A CN 201310475060A CN 103567222 B CN103567222 B CN 103567222B
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Abstract
The invention provides a kind of iron and steel and aluminium alloy plate carries product hot rolling mixed production line and production technology, described production line is made up of the thermal treatment zone connecting successively by rollgang, roughing district, finish rolling district and curling district, wherein, the described thermal treatment zone comprises aluminum ingot heating furnace and billet heating furnace, described aluminum ingot heating furnace and billet heating furnace lay respectively at rollgang both sides, and described aluminum ingot heating furnace is provided with aluminium ignot turnover mechanism near rollgang one side; Described roughing district comprises that descaling device, vertical miller, roughing mill and a heavy type of connection are cut successively; Described finish rolling district comprises successively that connect light-duty cut, finishing mill and circle shear, and described finishing mill has built-in secondary descaling steel device; Described curling district comprises the cooling facility for laminar flow and the coiling machine that connect successively. Utilization present invention can be implemented in same production line Rolling Production carbon steel, stainless steel and alloy product, effectively realizes most optimum distribution of resources, shares.
Description
Technical field
The invention belongs to stress metal processing technique field, relate to a kind of iron and steel and aluminium alloy plate carries product hot rolling mixed production line and utilize this production line to produce the technique of steel plate carries product and aluminium alloy plate carries product.
Background technology
Iron and steel is the field basic materials such as building, civilian and mechanized equipment, because having various advantages energy and cheap, has irreplaceable critical role in national economy. Hot-rolled sheet strip steel is produced and is mainly contained continuous rolling, steckel rolling system and CSP three types, and by the configurations different from mm finishing mill unit of roughing unit, hot continuous rolling has semi continuous, 3/4 continous way and three kinds of forms of fully continuous type. Aluminium alloy has a series of good characteristics, is most widely used non-ferrous metal structural material. Aluminum alloy strip hot rolling is produced can rolling on single chassis reversable mill, also can on multi-frame, carry out tandem rolling; Hot rolling type is various informative, as single chassis hot rolling, Stand Mill hot rolling, multi-frame hot continuous rolling, continuous casting and rolling, continuous casting and rolling etc.
Because different metal material rolling mechanism exists very big-difference, at present, the basic same metal material rolling mill practice approach in batches that adopts is produced in iron and steel and aluminum alloy strip hot rolling. For improving production capacity, expand product category, improve surface quality, reduce production costs etc., Some Enterprises is developed carbon steel and stainless steel hot-rolling coiled sheet conllinear rolling technique, iron and steel and titanium coiled sheet conllinear rolling technique etc. in succession both at home and abroad. But it is blank that iron and steel and aluminum alloy strip hot rolling mixed production technique still belong to. Along with trans-regional, inter-trade enterprise annexation and recombination, diversification of industry, diversification of varieties development, design a kind of hot-rolled production process, to realize carbon steel, stainless steel and aluminum alloy strip mixed production, expanding product category, reduce construction investment, the aspect such as increase economic efficiency is significant.
Summary of the invention
Object of the present invention is the problem existing for prior art, provides a kind of iron and steel and aluminium alloy plate carries product hot rolling mixed production line, to realize the hot rolling mixed production of iron and steel and aluminum alloy strip.
Another object of the present invention is to provide a kind of technique of utilizing above-mentioned production line to produce steel plate carries product.
A further object of the present invention is to provide a kind of technique of utilizing above-mentioned production line to produce aluminium alloy plate carries product.
For this reason, the present invention adopts following technical scheme:
A kind of iron and steel and aluminium alloy plate carries product hot rolling mixed production line, it is made up of the thermal treatment zone connecting successively by rollgang, roughing district, finish rolling district and curling district, wherein:
The described thermal treatment zone comprises aluminum ingot heating furnace and billet heating furnace, and described aluminum ingot heating furnace and billet heating furnace lay respectively at rollgang both sides, and described aluminum ingot heating furnace is provided with aluminium ignot turnover mechanism near rollgang one side;
Described roughing district comprises that descaling device, vertical miller, roughing mill and a heavy type of connection are cut successively;
Described finish rolling district comprises successively that connect light-duty cut, finishing mill and circle shear, and described finishing mill has built-in secondary descaling steel device;
Described curling district comprises the cooling facility for laminar flow and the coiling machine that connect successively.
Utilize above-mentioned production line to produce a technique for steel plate carries product, comprise the steps:
(1) heating: the steel continuous casting steel billet that is 160-250mm by thickness packs in billet heating furnace, comes out of the stove after being heated to 1250 DEG C;
(2) roughing: adopt No. a time descaling device, by water under high pressure, the steel continuous casting steel billet through heating is removed to scale on surface, then back and forth rolling between vertical miller and roughing mill, until the thickness of middle blank is less than 30mm, close heavy type and cut, in the middle of making, blank passes through fast;
(3) finish rolling: cut middle blank cutting head cutting tail by light-duty, and according to circumstances shear segmentation, then utilize the built-in secondary descaling steel device of finishing mill to carry out high pressure water cleaning to shearing rear middle blank, through finishing mill rolling 3-7 passage, obtaining thickness is the iron and steel strip of 3-5mm; Close circle shear, iron and steel strip is passed through fast;
(4) by cooling facility for laminar flow, iron and steel strip is cooled to 700 DEG C, then sends into crimping machine curls inward and obtain the iron and steel roll coil of strip.
Further, described iron and steel is carbon steel or stainless steel.
Utilize above-mentioned production line to produce a technique for aluminium alloy plate carries product, comprise the steps:
(1) heating: the aluminium alloy cast ingot that is 400-650mm by thickness packs in aluminum ingot heating furnace and heats, comes out of the stove after being heated to 460 DEG C, and by aluminium ignot turnover, mechanism overturns, and is flat on rollgang;
(2) close descaling device No. one time, aluminium alloy cast ingot is fast by back and forth rolling between vertical miller and roughing mill after a descaling device, until middle sotck thinkness is less than 45mm, blank after rolling is adopted to heavy cutting head back-end crop, and according to circumstances shear segmentation;
(3) close light-duty cutting and secondary descaling steel device, aluminium alloy cast ingot is passed through fast, then, through finishing mill rolling 3-7 passage, obtain the aluminum alloy strip that thickness is 2-4mm; Adopt circle shear to carry out trimming to aluminum alloy strip;
(4) close cooling facility for laminar flow, aluminum alloy strip is passed through fast, then send into coiling machine curls inward and obtain the aluminium alloy roll coil of strip.
Beneficial effect of the present invention is: utilize and present invention can be implemented in same production line Rolling Production carbon steel, stainless steel and alloy product, effectively realize most optimum distribution of resources, share, can guarantee that product mechanical property, processing performance, surface quality, glacing flatness etc. reach standard regulation and user's requirement; Simultaneously, technique of the present invention can be organized dissimilar, different series, different size iron and steel and the batch production of aluminum alloy hot rolling strip flexibly according to user's request conllinear, and automaticity is high, advanced technology, can meet the cold rolling process instructions for use of user Ji Hou road completely.
Brief description of the drawings
Fig. 1 is the structural representation of iron and steel of the present invention and aluminium alloy plate carries product hot rolling mixed production line.
In figure, 1-rollgang, 2-aluminum ingot heating furnace, 3-aluminium ignot turnover mechanism, 4-billet heating furnace, descaling device of 5-, 6-vertical miller, 7-roughing mill, 8-heavy type is cut, and 9-is light-duty to be cut, 10-finishing mill, 11-circle shear, 12-cooling facility for laminar flow, 13-coiling machine.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, a kind of iron and steel and aluminium alloy plate carries product hot rolling mixed production line, it is made up of the thermal treatment zone connecting successively by rollgang 1, roughing district, finish rolling district and curling district, wherein:
A. the thermal treatment zone: comprise and push away ingot formula aluminum ingot heating furnace 2 2-4 seat altogether, and walking beam furnace 4 2-4 seat altogether, aluminum ingot heating furnace 2 maximum heating temperatures are 680 DEG C, billet heating furnace 4 maximum heating temperatures are 1300 DEG C, aluminum ingot heating furnace 2 and billet heating furnace 4 lay respectively at rollgang 1 both sides, and aluminum ingot heating furnace 2 is provided with aluminium ignot turnover mechanism 3 near rollgang 1 one sides;
B. roughing district: comprise that a descaling device 5, vertical miller 6, roughing mill 7 and the heavy type of connection cut 8 successively. Acting as of a descaling device 5 adopts water under high pressure to remove carbon steel and stainless steel slab scale on surface, and hydraulic pressure is 18-20MPa, aluminium ingot by time a descaling device 5 automatically close. Vertical miller 6 has act as the reversible multi-pass rolling of blank (comprising limit portion) with roughing mill 7, vertical miller 6 is provided with automatic width control system (AWC) and short stroke control system (SSC), with blank width difference in the middle of reducing and head, tail fish tail shape, improve plate width precision, maximum rolling force 6700kN; Roughing mill 7 adopts four roll reversing rollers, maximum rolling force 55000kN, maximum opening degree 700mm. Heavy type cut 8 act as according to circumstances complete in the middle of blank cutting head cutting tail, also can shear segmentation according to actual conditions, mainly for the larger aluminum alloy blank of thickness;
C. finish rolling district: comprise successively that connect light-duty cuts 9, finishing mill 10 and circle shear 11, finishing mill 10 is 3-7 frame. Light-dutyly cut 9 act as middle blank is carried out to cutting head cutting tail, be provided with SHAPE DETECTION instrument, can realize optimization control, reduce head, tail is cut damage, improves lumber recovery, mainly for the less iron and steel slab of thickness. Mm finishing mill unit has act as belt tension multi-pass rolling, is rolled to target finished product thickness. Finishing mill 10 is built-in with secondary descaling steel device (not shown), act as and remove steel surface regenerating oxidation iron sheet with water under high pressure (hydraulic pressure 18-20MPa), aluminium sheet band by time automatically quit work. Finishing mill 10 is made up of four-high mill, and maximum rolling force 40000-50000kN all adopts hydraulic pressing and thickness automatically to control (AGC) system, and fast response time, setting accuracy are high, to improve strip total length thickness control accuracy; And adopt CVC plat control system, work roll bending, work roll shifting device, to ensure product convexity and glacing flatness, to improve product surface quality, to realize automatic rolling; Be provided with the checkout facilities such as convexity, glacing flatness and thickness, width, temperature in mm finishing mill unit outlet. Circle shear 11 is for aluminium strip trimming, carbon steel and stainless steel sheet strip by time automatically quit work;
D. batch region: comprise a set of cooling facility for laminar flow 12 and 2-4 platform coiling machine 13. It is cooling that cooling facility for laminar flow 12 can be realized efficient, quick, adjustable laminar flow, is divided into close-coupled rapid chilling section, accurate adjustment section and fine setting section three parts, for carbon steel and stainless steel sheet strip on-line cooling, aluminium sheet band by time automatically close. Coiling machine unit place arranges upper and lower surface quality detection device, with On line inspection, analysis, control panel belt surface quality. Coiling machine 13 adopts the all-hydraulic band type of marking time, and helps winding up roller automatic jump control, to prevent that strip from producing the defects such as impression and surface damage.
Embodiment 2
The technique of utilizing embodiment 1 production line to produce corrosion resistant plate carries product, comprises the steps:
(1) heating: the stainless steel continuous casting slab that is 160-250mm by thickness packs in billet heating furnace 4, comes out of the stove after being heated to 1250 DEG C;
(2) roughing: adopt No. a time descaling device 5, to remove scale on surface by water under high pressure through the stainless steel continuous casting slab of heating, then back and forth rolling between vertical miller 6 and roughing mill 7, start rolling temperature is 1150 DEG C, until the thickness of middle blank is less than 30mm, close heavy type and cut 8, in the middle of making, blank passes through fast;
(3) finish rolling: cut 9 by middle blank cutting head cutting tail by light-duty, and according to circumstances shear segmentation, then adopt built-in secondary descaling steel device to carry out high pressure water cleaning to shearing rear middle blank, then through finishing mill 10 rolling 3-7 passages, obtaining thickness is the iron and steel strip of 3-5mm; Close circle shear 11, iron and steel strip is passed through fast;
(4) adopt cooling facility for laminar flow 12 to be cooled to 700 DEG C iron and steel strip, then send into crimping machine 13 curls inwards and obtain the iron and steel roll coil of strip.
Embodiment 3
The technique of utilizing embodiment 1 production line to produce aluminium alloy plate carries product, comprises the steps:
(1) heating: the aluminium alloy cast ingot that is 400-650mm by thickness packs the interior heating of aluminum ingot heating furnace 2 into, comes out of the stove after being heated to 460 DEG C, overturns by aluminium ignot turnover mechanism 3, is flat on rollgang 1;
(2) close descaling device 5 No. one time, aluminium alloy cast ingot is fast by back and forth rolling between vertical miller 6 and roughing mill 7 after a descaling device 5, until middle sotck thinkness is less than 45mm, adopts heavy type to cut 8 cutting head cutting tails blank after rolling, and according to circumstances shear segmentation;
(3) close and light-dutyly cut 9 and a descaling device, aluminium alloy cast ingot passes through fast, then, through finishing mill 10 rolling 3-7 passages, obtains the aluminum alloy strip that thickness is 2-4mm, adopts circle shear 11 to carry out trimming to aluminum alloy strip;
(4) close cooling facility for laminar flow 12, aluminum alloy strip is passed through fast, then send into coiling machine 13 curls inwards and obtain the aluminium alloy roll coil of strip.
Claims (2)
1. iron and steel and an aluminium alloy plate carries product hot rolling mixed production line, is characterized in that, it is made up of the thermal treatment zone connecting successively by rollgang, roughing district, finish rolling district and curling district, wherein:
The described thermal treatment zone comprises aluminum ingot heating furnace and billet heating furnace, and described aluminum ingot heating furnace and billet heating furnace lay respectively at rollgang both sides, and described aluminum ingot heating furnace is provided with aluminium ignot turnover mechanism near rollgang one side;
Described roughing district comprises that descaling device, vertical miller, roughing mill and a heavy type of connection are cut successively;
Described finish rolling district comprises successively that connect light-duty cut, finishing mill and circle shear, and described finishing mill has built-in secondary descaling steel device, and described finishing mill is 3-7 frame;
Described curling district comprises the cooling facility for laminar flow and the crimping machine that connect successively.
2. utilize the technique that production line is produced aluminium alloy plate carries product described in claim 1, it is characterized in that, comprise the steps:
(1) heating: the aluminium alloy cast ingot that is 400-650mm by thickness packs in aluminum ingot heating furnace and heats, comes out of the stove after being heated to 460 DEG C, and by aluminium ignot turnover, mechanism overturns, and is flat on rollgang;
(2) close descaling device No. one time, aluminium alloy cast ingot is fast by back and forth rolling between vertical miller and roughing mill after a descaling device, until middle sotck thinkness is less than 45mm, blank after rolling is adopted to heavy cutting head back-end crop, and according to circumstances shear segmentation;
(3) close light-duty cutting and secondary descaling steel device, aluminium alloy cast ingot is passed through fast, then, through finishing mill rolling 3-7 passage, obtain the aluminum alloy strip that thickness is 2-4mm; Adopt circle shear to carry out trimming to aluminum alloy strip;
(4) close cooling facility for laminar flow, aluminum alloy strip is passed through fast, then send into the curling aluminium alloy roll coil of strip that obtains in crimping machine.
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| CN106378358B (en) * | 2016-09-14 | 2018-11-09 | 广西南南铝加工有限公司 | A kind of production method of large winding diameter, the high thin volume of flatness aluminium alloy width |
| CN107639116A (en) * | 2017-09-29 | 2018-01-30 | 四川德胜集团钒钛有限公司 | A kind of continuous casting line |
| CN109550797A (en) * | 2018-11-20 | 2019-04-02 | 天津大学 | One kind producing hot-rolled process residual neat recovering system for steel |
| CN110280588B (en) * | 2019-07-11 | 2020-10-27 | 嘉兴市金鹭喷织有限公司 | Copper strips rough rolling on crack control limit |
| CN110743909A (en) * | 2019-10-24 | 2020-02-04 | 江苏省沙钢钢铁研究院有限公司 | Small-batch efficient rolling method for steel plates |
| CN110883086B (en) * | 2019-12-12 | 2021-05-07 | 马鞍山钢铁股份有限公司 | Collinear production method of titanium and titanium alloy section and section steel |
| CN111360071A (en) * | 2020-03-10 | 2020-07-03 | 董翠萍 | Raw material hot extrusion equipment for aluminum product processing |
| CN112808770A (en) * | 2020-12-29 | 2021-05-18 | 山西太钢不锈钢股份有限公司 | Rapid switching method for steel and titanium rolling |
| CN115634952B (en) * | 2022-12-21 | 2023-03-07 | 淄博火炬新材料科技有限公司 | Energy-saving and environment-friendly rough rolling mechanism for aluminum cold-rolled blank |
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| CN1978080A (en) * | 2005-11-29 | 2007-06-13 | 中冶赛迪工程技术股份有限公司 | Band-steel producing process EPS |
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