CN104128367A - Short stress continuous rolling unit and system for rolling wide flat steel - Google Patents
Short stress continuous rolling unit and system for rolling wide flat steel Download PDFInfo
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- CN104128367A CN104128367A CN201410336582.0A CN201410336582A CN104128367A CN 104128367 A CN104128367 A CN 104128367A CN 201410336582 A CN201410336582 A CN 201410336582A CN 104128367 A CN104128367 A CN 104128367A
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Abstract
The invention provides a short stress continuous rolling unit and system for rolling wide flat steel. The short stress continuous rolling unit comprises at least one first short stress rolling mill and at least one second short stress rolling mill. The first short stress rolling mills are vertical roll short stress rolling mills, the second short stress rolling mills are plain roll short stress rolling mills, the first short stress rolling mills and the second short stress rolling mills are alternatively arranged, and the first short stress rolling mills and the second short stress rolling mills are all two-roll non-stand rolling mills. According to the short stress continuous rolling unit for rolling the wide flat steel, the production cost of the wide flat steel is saved. The precision of the rolled wide flat steel is higher than that of wide flat steel rolled by a stand rolling mill.
Description
Technical field
The present invention relates to the rolling technique of metal, relate in particular to a kind of short stress tandem rolling unit and system for the wide band steel of rolling.
Background technology
In the rolling field of metal, wide band steel refers to Kuan Du≤150mm, the common ﹥ 4mm of thickness, and its limit portion is with the steel of corner angle.Wide band steel is generally with vertical bar delivery when delivery is collected, and rolling is not delivered goods.Wide band steel is mainly used in the user of manufacture of steel structure, science of bridge building, engineering machinery, device fabrication and the narrow middle plate of other needs, and in industry standard, the demand of the wide band steel of width between 350mm to 450mm is very large.Wide band steel is paid attention in the industry gradually with its exclusive feature, for example: wide band steel can be saved the expense of shearing, the feature of saving man-hour, saving steel consumption.Therefore also more and more higher to the each side requirement of wide band steel, such as: the unevenness of wide band steel (length direction, width), camber, cross sectional shape etc. all need to reach A level, and the obvious distortion that do not have.
Prior art is when producing width at the wide band steel between 350mm to 450mm, first pass through often to produce cut deal (width of cut deal is generally in 700mm or 800mm left and right), and then cut deal is cut into width at the wide band steel between 350mm to 450mm.
But prior art need to increase cutting equipment on rolling line, has increased the production cost of wide band steel, and the precision of the wide band steel of producing is not high.
Summary of the invention
The invention provides a kind of short stress tandem rolling unit and system for the wide band steel of rolling, in order to solve, in prior art, produce the technical problem that wide band steel cost is high and precision is not enough.
First aspect, the invention provides a kind of short stress tandem rolling unit for the wide band steel of rolling, comprises at least one first short stress milling train and at least one second short stress milling train; Wherein, described the first short stress milling train is the short stress milling train of edger roll, described the second short stress milling train is the short stress milling train of plain-barreled roll, the vertical usual friendship of described the first short stress milling train and described the second short stress milling train is for arranging, described the first short stress milling train and described the second short stress milling train are two roller non-stand rolling mills.
Further, described short stress tandem rolling unit comprises 3 described the first short stress milling trains and 3 described the second short stress milling trains.
Second aspect, the invention provides a kind of system for the wide band steel of rolling, comprising: feeding device, heating furnace, reversable mill, 400 tons of hot shears, Traverse Displacement Unit and cold bed gathering-devices, also comprise above-mentioned short stress tandem rolling unit; Described short stress tandem rolling unit is arranged between described 400 tons of hot shears and described Traverse Displacement Unit.
Short stress tandem rolling unit and system for the wide band steel of rolling provided by the invention, by at least one the first short stress milling train in short stress tandem rolling unit and the vertical usual friendship of at least one second short stress milling train, replace and arrange, Direct Rolling generates wide band steel, without increase cutting operation on the rolling line of wide band steel, saved the production cost of wide band steel; In addition, what all adopt due to the first short stress milling train in short stress tandem rolling unit and the second short stress milling train is non-stand rolling mill, therefore, the rigidity of the first short stress milling train and the second short stress milling train is high, the precision of the wide band steel that the precision of institute's rolling wide band steel out will generate higher than memorial archway mill milling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the short stress tandem rolling unit embodiment mono-for the wide band steel of rolling provided by the invention;
Fig. 2 is the structural representation of the first short stress milling train provided by the invention;
Fig. 3 is the structural representation of the first short stress milling train provided by the invention;
Fig. 4 is the structural representation of the short stress tandem rolling unit embodiment bis-for the wide band steel of rolling provided by the invention;
Fig. 5 is the structural representation of the system embodiment one for the wide band steel of rolling provided by the invention.
The specific embodiment
Fig. 1 is the structural representation of the short stress tandem rolling unit embodiment mono-for the wide band steel of rolling provided by the invention.As shown in Figure 1, this short stress tandem rolling unit 10 comprises at least one first short stress milling train 101 and at least one second short stress milling train 102; Wherein, described the first short stress milling train 101 is the short stress milling train of edger roll, described the second short stress milling train 102 is the short stress milling train of plain-barreled roll, described the first short stress milling train 101 and the vertical usual friendship of described the second short stress milling train 102 are for arranging, described the first short stress milling train 101 and described the second short stress milling train 102 are two roller non-stand rolling mills.
Concrete, the first short stress milling train 101 and the second short stress milling train 102 in the present invention are non-stand rolling mill, and the non-stand rolling mill in the present invention is the non-stand rolling mill of two rollers.Because the roll-force that the roll of non-stand rolling mill bears all can be passed to the column through bearing block by four row cylindrical bearings on its roll pins having, by the column in tension, bear roll-force radially.Therefore, the line of tension of non-stand rolling mill is wanted much shorter than traditional 2 rollers or 4 roller memorial archway milling trains, so just makes its mill stiffness higher than traditional memorial archway milling train.
The first short stress milling train 101 in short stress tandem rolling unit 10 of the present invention and the vertical usual friendship of the second short stress milling train 102 are for arranging, be on first milling train position in short stress tandem rolling unit 10, to arrange a first short stress milling train 101, on second milling train position, arrange a second short stress milling train 102, on the 3rd milling train position, arrange a first short stress milling train 101, the like, realize the first short stress milling train 101 and the vertical usual friendship of the second short stress milling train 102 for arranging.Wherein, the first short stress milling train 101 and the second short stress milling train 102 drive separately by direct current generator, and the frame of the first short stress milling train 101 and the second short stress milling train 102 is interchangeable, Minimal Tension rolling between each frame.The first short stress milling train 101 is for controlling the shape of width and the finishing finished product side of wide band steel, and the second short stress milling train 102 is for finally rolling into the needed thickness of finished product by discontinuity surface blank supplied materials thickness.The rolling that cooperatively interacts of the first short stress milling train 101 and the second short stress milling train 102 generates width at the wide band steel of 350mm to 450mm.Certainly, short stress tandem rolling unit 10 provided by the invention can also rolling generates the broadside steel of other width, and the present invention does not limit this.
Not existing together of above-mentioned the second short stress milling train 102 and the first short stress milling train 101, has any different while being only depress spiro rod and the assembling of roller system: for ease of on-line control, the handwheel of the second short stress milling train 102 is arranged on the stiff end of roller system; And the handwheel of the first short stress milling train 101 is arranged on the end that moves about of roller system, depress spiro rod is wanted horizontal turnback to refill afterwards at roller, to fasten, make handwheel upward, and a set of axial adjustment bar more than the first short stress milling train 101.The first short stress milling train 101 can be shown in Figure 2, and the second short stress milling train 102 can be shown in Figure 3.
Because the rigidity of the first short stress milling train 101 and the second short stress milling train 102 is all high than the rigidity of common memorial archway milling train, so the precision of its rolling steel is out higher than the precision of the steel of common memorial archway mill milling.And it is large that the roll of the first short stress milling train 101 and the second short stress milling train 102 is radially adjusted stroke, can meet at rolling width during at the wide band steel of 350mm to 450mm, rolling on edge has enough opening degrees, can better limit spreading of wide band steel.
Prior art is at rolling width during the wide band steel at 350mm to 450mm, what conventionally adopt is that 4 roller memorial archway mill millings become cut deal (width of cut deal is generally in 700mm or 800mm left and right), and then cut deal is cut into width at the wide band steel between 350mm to 450mm by cutting equipment.Therefore, on the rolling line of wide band steel, must increase cutting operation, the cost of wide band steel is strengthened; But, the present invention is replaced and is arranged by the first short stress milling train 101 and the vertical usual friendship of the second short stress milling train 102,1 by the first short stress milling train 101, control the width of wide band steel and the shape of repairing finished product side, the second short stress milling train 102 finally rolls into the needed thickness of finished product by middle discontinuity surface blank supplied materials thickness, therefore, short stress tandem rolling unit 10 provided by the invention can generate the wide band steel of width between 350mm to 450mm by Direct Rolling; And because the rigidity of the first short stress milling train 101 and the second short stress milling train 102 is all better than memorial archway milling train, therefore, the precision of its rolling wide band steel out will be higher than memorial archway milling train.
Short stress tandem rolling unit for the wide band steel of rolling provided by the invention, by at least one the first short stress milling train in short stress tandem rolling unit and the vertical usual friendship of at least one second short stress milling train, replace and arrange, Direct Rolling generates wide band steel, without increase cutting operation on the rolling line of wide band steel, saved the production cost of wide band steel; In addition, what all adopt due to the first short stress milling train in short stress tandem rolling unit and the second short stress milling train is non-stand rolling mill, therefore, the rigidity of the first short stress milling train and the second short stress milling train is high, the precision of the wide band steel that the precision of institute's rolling wide band steel out will generate higher than memorial archway mill milling.
Further, on the basis of above-described embodiment, above-mentioned short stress tandem rolling unit 10 can comprise 3 the first short stress milling trains 101 and 3 the second short stress milling trains 102, and above-mentioned short stress tandem rolling unit 10 comprises 6 short stress milling trains altogether.
Concrete, can be by above-mentioned 3 the first short stress milling trains 101 and 3 the second short stress milling train 102 difference label, the i.e. short stress milling train 101 of 1# first, the short stress milling train 101 of 2# first, the short stress milling train 101 of 3# first, the short stress milling train 102 of 1# second, the short stress milling train 102 of 2# second, short stress milling trains 102 of 3# second.The actual arrangement situation of above-mentioned short stress milling train group is from front to back successively: the short stress milling train 101 of 1# first, the short stress milling train 102 of 1# second, the short stress milling train 101 of 2# first, the short stress milling train 102 of 2# second, the short stress milling train 101 of 3# first, the short stress milling train 102 of 3# second, and shown in Figure 4.
Further, the diameter of the roll of the short stress milling train 101 of above-mentioned 1# first, the short stress milling train 102 of 1# second, the short stress milling train 101 of 2# first, the short stress milling train 102 of 2# second all can be chosen the numerical value between 620mm to 680mm, and the short stress milling train 101 of 3# first, 3# second are short, and stress milling train 102 all can be chosen the numerical value between 510mm to 580mm.Preferably, the diameter of the roll of # the first short stress milling train 101, the short stress milling train 102 of 1# second, the short stress milling train 101 of 2# first, the short stress milling train 102 of 2# second all can be chosen 650mm, and 3# second is short, and stress milling train 102 all can be chosen 550mm.
It should be noted that, here be a kind of feasible embodiment of the roller diameter of the first short stress milling train 101 in short stress milling train group 10 and the second short stress milling train 102, the present invention does not limit the size of the roller diameter of the roller diameter of the first short stress milling train 101 and the second short stress milling train 102.
Short stress tandem rolling unit for the wide band steel of rolling provided by the invention, by at least one the first short stress milling train in short stress tandem rolling unit and the vertical usual friendship of at least one second short stress milling train, replace and arrange, Direct Rolling generates wide band steel, without increase cutting operation on the rolling line of wide band steel, saved the production cost of wide band steel; In addition, what all adopt due to the first short stress milling train in short stress tandem rolling unit and the second short stress milling train is non-stand rolling mill, therefore, the rigidity of the first short stress milling train and the second short stress milling train is high, the precision of the wide band steel that the precision of institute's rolling wide band steel out will generate higher than memorial archway mill milling.
Fig. 5 is the structural representation of the system embodiment one for the wide band steel of rolling provided by the invention.As shown in Figure 5, this system comprises feeding device 201, heating furnace 202, reversable mill 203,400 tons of hot shears 204, Traverse Displacement Unit 205 and cold bed gathering-devices 206, also comprises: the short stress tandem rolling unit 10 in above-described embodiment; This short stress tandem rolling unit 10 is arranged between described 400 tons of hot shears 204 and described Traverse Displacement Unit 205.
Concrete, steel billet is transported on rolling line by feeding device 201, and after heating furnace 202 heating, steel billet is sent to reversable mill 203.This steel billet by the reciprocal rolling of reversable mill 203, is rolled into middle discontinuity surface blank (the reciprocal rolling is here firmly mainly that the billet rolling of box-shaped is become to flat, realizes the object of Fang Chengbian) in roughing district.This reversable mill 203 can be the reversable mill of two rollers, can be also the reversable mill of 4 rollers or 6 rollers.Reversable mill 203 its according to blank (steel billet) and finished product feature, can select the flat pass schedule of case.Blank (being square billet) can be rolled into the wide bloom slab of 20mm * 240mm, and being averaged lengthening coefficient is 1.34.System can be according to the deployment scenarios of reversable mill 203, and can get rolling pass is 7 roads.In addition, in order to take less length and the handled easily of roll self as far as possible, the flat pass schedule of case can adopt conjugation hole, considers Forced Spread simultaneously, adopts the opening flat-rolled pass schedule without edging pass to reach expected width in technique.
Afterwards, the wide bloom slab that 203 rollings generate through reversable mill is through 400 tons of hot shears 204 crops or truncate or segmentation, then sends into short stress tandem rolling unit 10 and is rolled.For the description of the wide band steel of short stress milling train group rolling, can, referring to described in above-described embodiment, not repeat them here.
The wide band steel generating through 10 rollings of too short stress tandem rolling unit is all one by one, need to remove by Traverse Displacement Unit 205, and collect by cold bed gathering-device 206, with by the wide band steel of producing for other purposes.
System for the wide band steel of rolling provided by the invention, by at least one the first short stress milling train in short stress tandem rolling unit and the vertical usual friendship of at least one second short stress milling train, replace and arrange, Direct Rolling generates wide band steel, without increase cutting operation on the rolling line of wide band steel, saved the production cost of wide band steel; In addition, what all adopt due to the first short stress milling train in short stress tandem rolling unit and the second short stress milling train is non-stand rolling mill, therefore, the rigidity of the first short stress milling train and the second short stress milling train is high, the precision of the wide band steel that the precision of institute's rolling wide band steel out will generate higher than memorial archway mill milling.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (3)
1. for a short stress tandem rolling unit for the wide band steel of rolling, it is characterized in that, comprise at least one first short stress milling train and at least one second short stress milling train; Wherein, described the first short stress milling train is the short stress milling train of edger roll, described the second short stress milling train is the short stress milling train of plain-barreled roll, the vertical usual friendship of described the first short stress milling train and described the second short stress milling train is for arranging, described the first short stress milling train and described the second short stress milling train are two roller non-stand rolling mills.
2. short stress tandem rolling unit according to claim 1, is characterized in that, described short stress tandem rolling unit comprises 3 described the first short stress milling trains and 3 described the second short stress milling trains.
3. for a system for the wide band steel of rolling, comprising: feeding device, heating furnace, reversable mill, 400 tons of hot shears, Traverse Displacement Unit and cold bed gathering-devices, it is characterized in that, also comprise: short stress tandem rolling unit as claimed in claim 1 or 2; Described short stress tandem rolling unit is arranged between described 400 tons of hot shears and described Traverse Displacement Unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410336582.0A CN104128367A (en) | 2014-07-15 | 2014-07-15 | Short stress continuous rolling unit and system for rolling wide flat steel |
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| CN201410336582.0A CN104128367A (en) | 2014-07-15 | 2014-07-15 | Short stress continuous rolling unit and system for rolling wide flat steel |
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| CN104128367A true CN104128367A (en) | 2014-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382547A (en) * | 2015-12-19 | 2016-03-09 | 重庆麦拓科技有限公司 | Tool and die steel production line |
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| JPS574304A (en) * | 1980-06-06 | 1982-01-09 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for rough rolling with differential roll speeds |
| US4669293A (en) * | 1985-06-04 | 1987-06-02 | Sumitomo Metal Industries, Ltd. | Continuous rolling method and continuous rolling mill |
| JP2005000934A (en) * | 2003-06-10 | 2005-01-06 | Daido Steel Co Ltd | Method for manufacturing round corner flat square rolled material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105382547A (en) * | 2015-12-19 | 2016-03-09 | 重庆麦拓科技有限公司 | Tool and die steel production line |
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Application publication date: 20141105 |