CN102489511A - Six-roll cold rolling production process for magnesium alloy coils - Google Patents
Six-roll cold rolling production process for magnesium alloy coils Download PDFInfo
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- CN102489511A CN102489511A CN 201110367230 CN201110367230A CN102489511A CN 102489511 A CN102489511 A CN 102489511A CN 201110367230 CN201110367230 CN 201110367230 CN 201110367230 A CN201110367230 A CN 201110367230A CN 102489511 A CN102489511 A CN 102489511A
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- magnesium alloy
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Abstract
A six-roll cold rolling production process for magnesium alloy coils is applied to fields of metallurgical machinery, aviation and high-speed rails and includes steps of finishing a magnesium alloy coil of the thickness ranging from 5mm to 7mm; cutting the head and the tail of the magnesium alloy coil by a cutter; rolling the magnesium alloy coil primarily; and rolling the magnesium alloy coil by five times by a six-roll cold rolling machine under driving of a left coiling machine and a right coiling machine after one end of the magnesium alloy coil enters the left coiling machine and the other end of the magnesium alloy coil enters the right coiling machine when the coil is turned reversely. During rolling, the magnesium alloy coil is thinned by rolling, speed, thickness and tension of the magnesium alloy coil are required to be measured, and the measured data are fed back to the six-roll cold rolling machine in time. Once accidents are caused in rolling of the magnesium alloy coil, a cutting device can be used for cutting for removing the section of the coil with accidents, and the cut coil enters the left coiling machine and the right coiling machine again. The six-roll cold rolling production process for the magnesium alloy coils include six procedures, and has the advantage that rolling yield is improved, energy waste is reduced and production cost is reduced.
Description
Technical field
The present invention relates to a kind of magnesium alloy roll bending six-high cluster mill production technology in metallurgical machinery, aviation, the high ferro field.
Background technology
Magnesium alloy is owing to be the lightest structural metallic materials, and magnesium alloy sheet especially wide cut, thin plate has wide application prospects in fields such as aircraft, automobile, track traffics.But because the magnesium alloy plastic deformation ability is relatively poor, if the serious raw edges of the excessive easy generation of deformation rate when rolling, even face checking and the operation of rolling can't be proceeded; Magnesium alloy sheet is can only monoblock rolling; Produce the narrow boards material of following, the long 700～1000mm of wide 300mm, because narrow, the warpage of magnesium alloy board fabric width, lumber recovery is low; Production cost is high, and the application scope is little.To existing problem in the above-mentioned prior art, a kind of magnesium alloy roll bending six-high cluster mill production technology of research invention overcomes that existing problem is a new problem that needs to be resolved hurrily in the prior art.
Summary of the invention
The object of the invention just provides a kind of magnesium alloy roll bending six-high cluster mill production technology, and this production technology improves lumber recovery, reduces energy waste; Reduce production costs 70%; Can produce thickness is 0.5～2.2mm, and wide is 1600 mm, is rolled into 800～1200Kg rewinding plate.
The objective of the invention is to realize like this: a kind of magnesium alloy roll bending six roller cold-rolling production process; When thickness be the 5-7mm magnesium alloy board after finishing, by crop shears cutting plate head plate tail, carry out that first road is rolling earlier, one of strip gets into left coiling machine, inverted then strip other end gets into right coiling machine; Later passage is carried out six roads, second road to the at six-roll cold mill under left and right coiling machine drives rolling; In the operation of rolling,, need drafting board tape speed, drafting board tape thickness, drafting board band tension force along with the magnesium alloy plate tape thickness constantly rolls thinly; Measurement data in time feeds back to six-roll cold mill; Require adjustment drafts, adjustment roll-force according to the per pass procedure technology, accident appears in adjustment board temperature, adjustment strip tension force, adjustment strip tension force in the plate strip rolling process; Carry out the strip accident by shear and shear, strip is cut off got into left coiling machine and the right coiling machine of entering again; Magnesium alloy roll bending six roller cold-rolling production process adopt 6 road rolling process; Work roll diameter is that Φ 425mm, intermediate calender rolls diameter are that Φ 490mm, backing roll diameter are Φ 1350mm; Production technology is following: first road: be rolled into 4.9mm by 7.0mm; Left side volume tension force 700kN, right volume tension force 1100kN, roll-force 6300 kN; Second road: be rolled into 3.4mm by 4.9mm, left side volume tension force 1000kN, right volume tension force 1100kN, roll-force 6500 kN; The 3rd road: be rolled into 2.2mm by 3.4mm, left side volume tension force 1000kN, right volume tension force 800kN, roll-force 6300 kN; The 4th road: be rolled into 1.3mm by 2.2mm, left side volume tension force 800kN, right volume tension force 550kN, roll-force 5300 kN; The 5th road: be rolled into 0.7mm by 1.3mm, left side volume tension force 550kN, right volume tension force 450kN, roll-force 5300 kN; The 6th road: be rolled into 0.5mm by 0.7mm, left side volume tension force 450kN, right volume tension force 400kN, roll-force 5100 kN; The method of operating of said device is, magnesium alloy board before machine behind guide and guards and the machine under the guide and guards guide and guard, accurately get in left coiling machine and the right coiling machine after; Left side coiling machine and right coiling machine drive magnesium alloy board through the six-roll cold mill repeat-rolling, again through left tachymeter, and left calibrator and right calibrator; Right tachymeter is measured magnesium alloy board thickness of slab and mill speed; Through heater and tensioner, in time adjust magnesium alloy board temperature and tension force according to measurement data, accident is cut device and is used for plate strip rolling process and breaks down; Strip cut off again batch; Magnesium alloy board rolling qualified after, batch through left coiling machine or right coiling machine, unload volume by left coil stripping car then.
Main points of the present invention are its structure and method of operating.Its design principle is, and is rolling for solving the magnesium alloy plate monoblock, narrow, the warpage of magnesium alloy board fabric width of production, and lumber recovery is low; The high problem of production cost in six-roll cold mill group device both sides, is provided with guide and guards, coiling machine, tensioner; Heater, tachymeter, calibrator etc. make magnesium alloy board through batching, have the tension force repeat-rolling, and can adjust magnesium alloy board tension force according to technological requirement; Temperature, adjustment drafts and roll-force form roll bending at last.At first with 5～7mm magnesium alloy plate crop band that truncates; Be convenient to get into left and right coiling machine; Through diameter is that Φ 425mm working roll, diameter are that Φ 490mm intermediate calender rolls, diameter are that the six-roll cold mill of Φ 1350mm backing roll has the tension force repeat-rolling, processes the roll bending of the thick 0.5～2.2mm of being, 800～1200Kg.Tensioner, heater, tachymeter, calibrator are set temperature in the operation of rolling, thickness, tension force and speed data are provided for the per pass operation; So that rolling temperature, draw off rate, drafts and the tension force of adjustment magnesium alloy board in the operation of rolling; The accident of setting cut device be prevent in the operation of rolling in case six-roll cold mill group device appears and can't operate as normal, strip cut off again batches.Left coil stripping car, right coil stripping car are set will be processed the roll bending of the thick 0.5～2.2mm of being, 800～1200Kg and shift out.
Magnesium alloy roll bending six-high cluster mill production technology compared with prior art; Have the raising lumber recovery, reduce energy waste, reduce production costs 70%; Can produce thickness is 0.5～2.2mm; Wide is 1600 mm, is rolled into advantages such as 800～1200Kg rewinding plate, will be widely used in metallurgical machinery, aviation, the high ferro field.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Fig. 1 is a process chart of the present invention.
The specific embodiment
With reference to accompanying drawing, a kind of magnesium alloy roll bending six roller cold-rolling production process is characterized in that: when thickness is that the 5-7mm magnesium alloy board is after finishing; By crop shears cutting plate head plate tail 1, carry out that first road is rolling 2, one of strip gets into left coiling machine 3 earlier; Inverted then strip other end gets into right coiling machine 4, and later passage is carried out six roads, second road to the at six-roll cold mill under left and right coiling machine drives rolling 6, in the operation of rolling; Along with the magnesium alloy plate tape thickness constantly rolls thin; Need drafting board tape speed 7, drafting board tape thickness 8, drafting board band tension force 9, measurement data in time feeds back to six-roll cold mill, requires adjustment drafts 6, adjustment roll-force 6 according to the per pass procedure technology; Adjustment board temperature 10, adjustment strip tension force 3, adjustment strip tension force 4; Occur accident in the plate strip rolling process, carry out the strip accident by shear and shear 5, strip is cut off got into left coiling machine 3 and the right coiling machine 4 of entering again; Magnesium alloy roll bending six roller cold-rolling production process adopt 6 road rolling process; Work roll diameter is that Φ 425mm, intermediate calender rolls diameter are that Φ 490mm, backing roll diameter are Φ 1350mm; Production technology is following: first road: be rolled into 4.9mm by 7.0mm; Left side volume tension force 700kN, right volume tension force 1100kN, roll-force 6300 kN; Second road: be rolled into 3.4mm by 4.9mm, left side volume tension force 1000kN, right volume tension force 1100kN, roll-force 6500 kN; The 3rd road: be rolled into 2.2mm by 3.4mm, left side volume tension force 1000kN, right volume tension force 800kN, roll-force 6300 kN; The 4th road: be rolled into 1.3mm by 2.2mm, left side volume tension force 800kN, right volume tension force 550kN, roll-force 5300 kN; The 5th road: be rolled into 0.7mm by 1.3mm, left side volume tension force 550kN, right volume tension force 450kN, roll-force 5300 kN; The 6th road: be rolled into 0.5mm by 0.7mm, left side volume tension force 450kN, right volume tension force 400kN, roll-force 5100 kN; The method of operating of said device is, magnesium alloy board before machine behind guide and guards and the machine under the guide and guards guide and guard, accurately get in left coiling machine and the right coiling machine after; Left side coiling machine and right coiling machine drive magnesium alloy board through the six-roll cold mill repeat-rolling, again through left tachymeter, and left calibrator and right calibrator; Right tachymeter is measured magnesium alloy board thickness of slab and mill speed; Through heater and tensioner, in time adjust magnesium alloy board temperature and tension force according to measurement data, accident is cut device and is used for plate strip rolling process and breaks down; Strip cut off again batch; Magnesium alloy board rolling qualified after, batch through left coiling machine or right coiling machine, unload volume by left coil stripping car then.
Claims (2)
1. magnesium alloy roll bending six roller cold-rolling production process; It is characterized in that: when thickness be the 5-7mm magnesium alloy board after finishing, by crop shears cutting plate head plate tail, carry out that first road is rolling earlier, one of strip gets into left coiling machine, inverted then strip other end gets into right coiling machine; Later passage is carried out six roads, second road to the at six-roll cold mill under left and right coiling machine drives rolling; In the operation of rolling,, need drafting board tape speed, drafting board tape thickness, drafting board band tension force along with the magnesium alloy plate tape thickness constantly rolls thinly; Measurement data in time feeds back to six-roll cold mill; Require adjustment drafts, adjustment roll-force according to the per pass procedure technology, accident appears in adjustment board temperature, adjustment strip tension force, adjustment strip tension force in the plate strip rolling process; Carry out the strip accident by shear and shear, strip is cut off got into left coiling machine and the right coiling machine of entering again; Magnesium alloy roll bending six roller cold-rolling production process adopt 6 road rolling process; Work roll diameter is that Φ 425mm, intermediate calender rolls diameter are that Φ 490mm, backing roll diameter are Φ 1350mm; Production technology is following: first road: be rolled into 4.9mm by 7.0mm; Left side volume tension force 700kN, right volume tension force 1100kN, roll-force 6300 kN; Second road: be rolled into 3.4mm by 4.9mm, left side volume tension force 1000kN, right volume tension force 1100kN, roll-force 6500 kN; The 3rd road: be rolled into 2.2mm by 3.4mm, left side volume tension force 1000kN, right volume tension force 800kN, roll-force 6300 kN; The 4th road: be rolled into 1.3mm by 2.2mm, left side volume tension force 800kN, right volume tension force 550kN, roll-force 5300 kN; The 5th road: be rolled into 0.7mm by 1.3mm, left side volume tension force 550kN, right volume tension force 450kN, roll-force 5300 kN; The 6th road: be rolled into 0.5mm by 0.7mm, left side volume tension force 450kN, right volume tension force 400kN, roll-force 5100 kN.
2. a kind of magnesium alloy roll bending six roller cold-rolling production process according to claim 1 is characterized in that: the method for operating of said device is, magnesium alloy board is before machine behind guide and guards and the machine under the guide and guards guide and guard; After accurately getting in left coiling machine and the right coiling machine, left coiling machine and right coiling machine drive magnesium alloy board through the six-roll cold mill repeat-rolling, again through left tachymeter; Left side calibrator and right calibrator, right tachymeter is measured magnesium alloy board thickness of slab and mill speed, passes through heater and tensioner according to measurement data; In time adjust magnesium alloy board temperature and tension force; Accident is cut device and is used for plate strip rolling process and breaks down, strip is cut off is again batched, magnesium alloy board rolling qualified after; Batch through left coiling machine or right coiling machine, unload volume by left coil stripping car then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110367230 CN102489511A (en) | 2011-11-18 | 2011-11-18 | Six-roll cold rolling production process for magnesium alloy coils |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110367230 CN102489511A (en) | 2011-11-18 | 2011-11-18 | Six-roll cold rolling production process for magnesium alloy coils |
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| CN102489511A true CN102489511A (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110367230 Withdrawn CN102489511A (en) | 2011-11-18 | 2011-11-18 | Six-roll cold rolling production process for magnesium alloy coils |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665966A (en) * | 2019-10-24 | 2020-01-10 | 瓯锟科技温州有限公司 | Metal plate and strip rolling process based on liquid carbon dioxide cooling and lubrication |
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2011
- 2011-11-18 CN CN 201110367230 patent/CN102489511A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665966A (en) * | 2019-10-24 | 2020-01-10 | 瓯锟科技温州有限公司 | Metal plate and strip rolling process based on liquid carbon dioxide cooling and lubrication |
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Application publication date: 20120613 |