CN1212184A - Iron and steel thin sheet strip plate melting liquid horizontal hot filling magnetic suspension temp.-reducing waste heat hot rolling blank process - Google Patents
Iron and steel thin sheet strip plate melting liquid horizontal hot filling magnetic suspension temp.-reducing waste heat hot rolling blank process Download PDFInfo
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- CN1212184A CN1212184A CN 98112287 CN98112287A CN1212184A CN 1212184 A CN1212184 A CN 1212184A CN 98112287 CN98112287 CN 98112287 CN 98112287 A CN98112287 A CN 98112287A CN 1212184 A CN1212184 A CN 1212184A
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Abstract
The present invention relates to a steel and iron thin sheet strip plate continuously-casting continuously-rolling process, and is characterized by that the molten steel and iron is flowed out from cast gate of ladle, and made into liquid metal sheet,then the liquid metal sheet is suspended in midair by means of magnetic suspension force produced by electro-magnetic iron, and controllably protected and controllably cooled, and changed into solid state, fed into hot-mill at its optimum hot-rolling temp. and hot-rolled to change its as-cast structure into working structure and make its thickness approach to end-form size of product. After hot-rolled, the above-mentioned material also is controllably protected and cooled, finished, reeled into coil or saw-cut and piled, then fed into cold-mill, and cold-rolled into product material.
Description
The invention belongs to the iron and steel production field.
The present invention is the approximate end form continuous casting and rolling blank-making technology of iron and steel thin sheet strip plate.
The thin sheet strip plate base production technology of the approximate end form of steel plate band production field to society, there is great economic benefit in enterprise, so all grow a lot with domestic abroad.The continuous casting and rolling technique of sheet bar of Conroll technology, Innse company and Sumitomo company of FISR technology, VAI of ISP technology, Danieli Off Mecc of CSP technology, the MDS company of SMS company and ISP technology of Di Pingsi company and Samsung etc. are abroad arranged.Domestic Shanghai steel grinds the double roller continuous casting that utilizes and becomes strip base, General Institute of Iron and Steel, Ministry of＜atallurgical Industry of 1～5 * 200mm to utilize the single-roller method continuous casting to go out 0.5～1.2 * 70mm strip base.(annotating 1)
Above-mentioned each technology can be divided into two kinds of pouring in vertically clamped moulds and castings on flat.
The pouring in vertically clamped moulds molten steel vertically flows out from casting ladle, and through (mould) condensation of water-cooled wheel, the top layer generates duricrust, simultaneously molten metal is transported to the roll inlet with suitable flow rate, and then mean allocation is rolled into base on whole roll width.This class technology need solve the molten bath many technical problems such as turbulent flow and molten metal distribution takes place.(annotating 2), (annotating 3).Tall and big factory building of this kind arts demand and complex control system.
Casting on flat-horizontal continuous billet casting molten steel flows to crystallizing wheel (device) along horizontal direction from casting ladle, generate duricrust, batches rolling.
The present invention is that horizontal casting reduced investment, equipment is simple to operation; Hot-die slab quality height; Magnetic suspension molten metal sheet is easily realized controlled protection and Controllable Cooling Process; Many good characteristics such as waste heat hot-rolling and product grade, product specification, monovolume weight range broadness are in the continuous casting and rolling process for production of the approximate end form of one.
Operation principle of the present invention as shown in drawings, (its temperature far surpasses 768 ℃ of Curie-point temperatures (annotating 4) to qualified iron and steel molten metal 1, has non magnetic.) flow out through cast gate 3 by casting ladle 2; form molten metal sheet 4; the magnetic suspension force that is produced by electromagnet 5 is floating to be held in the palm in the space; made controlled protection and Controllable Cooling Process by controlled protection and cooling device 6 again, it is solid-state that molten metal sheet 2 is progressively become by liquid state, and keep best hot-rolled temperature (for example 〉=950 ℃); by support roller 7 rests; traction power (by initial towing plate) traction by hot-rolling mill 8 enters 8, carries out hot rolling, and hot rolling after heat die casting base changes worked structure into by cast sturcture.The hot rolling base again through collator 10 arrangements, batches rolling (or the cutter shearing ricks) by coiling machine 11 again through controlled protection and controlled cooling 9 coolings at last, hands over cold rolling becoming a useful person.
In order to debug conveniently, casting ladle 2 is installed in orbit, both can adjust magnetic floating region length, and available again clamp is fixed on the track.
According to electromagnetic coupling theory, LIM achievement in research (annotating 5) and electromagnetic casting practical experience (annotating 6); the molten metal sheet that the magnetic force line cutting that electromagnet 5 produces constantly moves to hot-rolling mill; the molten metal sheet eddy current of inducting; this eddy current also generates the magnetic line of force when producing fuel factor; this induced magnetism line of force and the electromagnet magnetic line of force repel each other; produce upwards suspending power; sheet metal is suspended in the space; be moved, by controlled protection and Controllable Cooling Process, become the solid-state hot-rolling mill hot rolling that enters by liquid state.
The electromagnet power supply frequency can be by molten metal sheet weight, and is promptly thick * wide * long (floating zone length of field) * proportion, selects direct current, power frequency or intermediate frequency.The power output of power supply also should have adjustable function except that with reference to annotating 6, with the molten metal sheet of suitable Different Weight.
The electromagnet of various frequencies and power supply design do not belong to this paper scope.
The metal deformation resistance of hot-cast base that enters hot-rolling mill 8 is very low, can require also very lowly to the power of hot-rolling mill, but the mill speed of hot-rolling mill answers stepless continuous adjustable, to adapt to production requirement.
Controlled protection and controlled cooling 6,9, collator 10, coiling machine (or cutter, piler) 11 can be selected by production requirement.
The iron and steel thin sheet strip plate continuous casting and rolling process for production is that the steel plate band is directly changed, nearly end form production, have energy-conservation, increase income enormous benefits, so class technology seems indispensable in the production of steel plate band.It is introduced (annotating 7) that with this type of explained hereafter thickness 1～3mm, the strip blank of width 1220mm can be saved producing cost 3/4.It is introduced again (annotating 8) that the U.S. produces per year in 5,000 ten thousand tons of flat rolled pieces, having can be by the production of thin sheet strip plate casting and rolling process about 2,000 ten thousand tons.
The present invention is the controlled cooling of hot-die streamer, has surperficial flawless, inside is the high-quality strip blank of worked structure.
The fertile trade mark of the present invention is many.
The fertile specification limit broadness of the present invention, monovolume weight and single-piece slab weight are random, and output is adjusted flexible.
The present invention does not need tall and big factory building, device simple, belongs to visual operation, regulates and control simple and easy.Thereby save huge capital expenditure and producing cost than other technologies." small-sized tandem rolling and near net shape continuous casting 500 to " the metallurgical industry publishing house of annotating 1 nineteen ninety-five
The 330th page, the 364th page of December.Annotating the 39th～42 page of 2 " external metal processing " magazine, 1996 the 2nd phase annotates the 7th page of 3 " world inventions " magazine, 1991 the 1st phase and annotates 4 " continuous casting steel machine handbook metallurgical industry publishing house 1991 1 edition, nineteen ninety-five 2 times
Print the 278th page.Annotate five, seven electrical machinery plants of 5 " LIM " (collection of translations) Zhejiang University, " new skill
The art compiling " publication in 1972 of compiling group.The 7th page, the 182nd～184 page.Annotate the 26th～35 page of 6 " light-alloy process technology " magazine, 1989 6 phase.Annotate 7 with annotating 4 the 867th pages of notes 8 with annotating 1 the 378th page.
Claims (1)
- Steel plate band blank adopts iron and steel liquation hot-die streamer, holds in the palm in the space by magnetic suspension force is floating, is become solid-stately by controlled protection and controlled cooling, utilizes the waste heat of this strand to carry out the hot rolling base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98112287 CN1212184A (en) | 1998-10-12 | 1998-10-12 | Iron and steel thin sheet strip plate melting liquid horizontal hot filling magnetic suspension temp.-reducing waste heat hot rolling blank process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98112287 CN1212184A (en) | 1998-10-12 | 1998-10-12 | Iron and steel thin sheet strip plate melting liquid horizontal hot filling magnetic suspension temp.-reducing waste heat hot rolling blank process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1212184A true CN1212184A (en) | 1999-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98112287 Pending CN1212184A (en) | 1998-10-12 | 1998-10-12 | Iron and steel thin sheet strip plate melting liquid horizontal hot filling magnetic suspension temp.-reducing waste heat hot rolling blank process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212184A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752608A (en) * | 2014-01-29 | 2014-04-30 | 雷亚夫 | Magnetic-levitation superconductive rolling mill |
| CN117380916A (en) * | 2023-12-08 | 2024-01-12 | 成都利华强磁浮连铸科技有限责任公司 | Magnetic suspension continuous casting system and magnetic suspension continuous casting method |
-
1998
- 1998-10-12 CN CN 98112287 patent/CN1212184A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752608A (en) * | 2014-01-29 | 2014-04-30 | 雷亚夫 | Magnetic-levitation superconductive rolling mill |
| CN103752608B (en) * | 2014-01-29 | 2015-04-08 | 大连飞天磁浮装备研究院有限公司 | Magnetic-levitation superconductive rolling mill |
| CN117380916A (en) * | 2023-12-08 | 2024-01-12 | 成都利华强磁浮连铸科技有限责任公司 | Magnetic suspension continuous casting system and magnetic suspension continuous casting method |
| CN117380916B (en) * | 2023-12-08 | 2024-02-23 | 成都利华强磁浮连铸科技有限责任公司 | Magnetic suspension continuous casting system and magnetic suspension continuous casting method |
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