CN101168167A - Deformation magnesium alloy belt type rolling method - Google Patents
Deformation magnesium alloy belt type rolling method Download PDFInfo
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- CN101168167A CN101168167A CN 200710189683 CN200710189683A CN101168167A CN 101168167 A CN101168167 A CN 101168167A CN 200710189683 CN200710189683 CN 200710189683 CN 200710189683 A CN200710189683 A CN 200710189683A CN 101168167 A CN101168167 A CN 101168167A
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Abstract
The invention relates to a rolling method of deforming electron alloy sheet belt style, which consists of a heater 1, a coiler or decoiler 2, a compression roller 3, a guide plate 4, an orbit 5, a straight peen draught attachment 6 and a reversing shape mill 7. The deforming electron alloy sheet belts with 0.3-5.0mm thickness can be produced after many times of uninterrupted repetitious hot-rolling. For repetitious sheet belt processing of warming, uncoiling, uncoiling and batching and the like, the finished products rate of deforming electron alloy sheet belt can be improved to 60% or higher, the rolling speed can be improved to 2-4 times, the energy consumption can be reduced, the energy utilization rate can be improved 20% or more, the craft process can be shortened, thereby conforming to the national innovation policy of reducing energy consumption.
Description
Affiliated technical field:
The present invention relates to a kind of non-ferrous metal processing method, especially a kind of deformation magnesium alloy belt type rolling method.
Background technology:
At present, because do not solve that online heating, hot rolling are got, key technologies such as hot uncoiling and the control of tension force condition lower roll type, wrought magnesium alloy thin plate and band all adopts piece formula method to be rolled processing, and promptly ingot casting is cut into blocks of fritter behind hot rolling cogging, again through carrying out warm-rolling piecewise after the heating repeatedly.This rolling processing method all needs constantly to interrupt, excise end to end owing to every, and carries out the off-line heating piecewise repeatedly, low speed rolling, thereby production efficiency is very low, and the cost height, yield rate only is about 20%.
Content of the present invention:
For overcoming above-mentioned deficiency, the present invention adopts the roll coil of strip or the hot rolled coil with continuous casting and rolling one-tenth, implement online heating on the reversable mill and adopting belt method (or rolling method) on reversable mill, to be rolled repeatedly, hundreds of meters the roll coil of strip is only through once excision end to end, adopt the belt method to be rolled the machining deformation magnesium alloy thin plate and band, realized resembling copper, the sort of belt method production of aluminum alloy thin strip.
Technical scheme:
This device adopts: two structures are set end to end can be implemented in line heating, uncoiling/the batch box type heater of function identical the time, the centre is provided with a reversible mill, two pressure rollers that arrangement is identical before and after the milling train and two guide plates and two straight peen draw-gears realize carrying out repeatedly incessantly online heating rolling processing.
This process adopts: mobile uncoiling/coiling machine → reel mounting → return → heat → uncoiling and straight peen draw → rolling → draw → batch → set up step such as tension force → repeat-rolling → unload volume.
Concrete processing step is as follows:
Mobile uncoiling/coiling machine: open behind goalkeeper's machine of heating furnace 1 one sides behind the machine uncoiling/coiling machine 2 by track behind the machine 5 traversing come out in the stove; Heating furnace both sides, top and bottom are provided with resistance wire, and the furnace bottom bottom is provided with the track for uncoiling/coiling machine turnover, has the window that passes through for the strip material to milling train 7 one ends; Uncoiling/coiling machine cantilevered reel part can pass in and out heating furnace, and its running part is stayed outside the stove all the time; But uncoiling/coiling machine adopts the expanding-contracting type of heat resisting steel making and moves by cardan axis and direct current step frequency motor.
Reel mounting: casting that 2.0～10.0mm is thick volume or 6.0～10.0mm hot rolled coil are installed on the reel that has jaw of uncoiling/coiling machine 2 behind the machine; Roll coil of strip diameter is 450～650mm.
Return: uncoiling/coiling machine 2 after returning behind the machine in the heating furnace 1 by track behind the machine 5 cuts out door behind the machine.
Heating: by the resistance wire that is provided with in the heating furnace roll coil of strip is heated, heating furnace work temperature is controlled between 200～500 ℃ (being furnace temperature); And adopt thermocouple temperature measurement and control furnace temperature automatically, in the stove everywhere the temperature difference be no more than ± 10 ℃, and adopt nitrogen or argon gas to protect; Body of heater is built by laying bricks or stones for steel construction refractory brick and fire-resistant cotton heat-insulation layer, and shell is aluminium sheet or steel plate, and the stove outer covering temperature is lower than 40 ℃.
The traction of uncoiling and straight peen: the machine back guide 4 that utilizes air cylinder driven between the straight peen draw-gear 6 behind the uncoiling/coiling machine 2 and machine is adopted behind the machine that is installed in uncoiling, guide plate inserts between the roll coil of strip head and the roll coil of strip when uncoiling, and pressure roller 3 is being pressed the roll coil of strip behind the lifting moving machine, uncoiling/coiling machine backward rotation, roll coil of strip head carries out the traction of uncoiling straight peen along a pair of carry-over pinch rolls roll gap of configuration up and down that guide plate enters the straight peen draw-gear, is guided into milling train 7 roll gap while the roll coil of strip flattens; Its pressure roller is sent out and is put in heating furnace and uncoiling/coiling machine top, and coexists on the steelframe with uncoiling/coiling machine, and its straight peen draw-gear is outside stove; Pressure roller, guide plate and straight peen draw-gear are heat resisting steel and make, and the straight peen draw-gear is installed on the steel structure frame, and its carry-over pinch rolls two is depressed or hydraulic pressure is depressed by electronic, and can adjust roll gap between two carry-over pinch rolls according to made-up belt thickness.
Rolling: as to adopt reversible two rollers or four-high mill 7 to be rolled processing; In order to guarantee that milling train can enter operate as normal once driving, by adopting the preheating method breaker roll to carry out preheating, pre-thermal recovery town gas utilizes the T type and has the steel pipe of some apertures before rolling, light behind the feeding coal gas and carry out the roll preheating, preheat temperature is controlled between 100～200 ℃; In order to keep good plate shape, the interior cold mode of roll employing prevents to be out of shape heat and causes roll stage casing intensification projection.
Traction: band goes out straight peen draw-gear 6 before the machine that enters behind the mill roll-gap, enters before the machine uncoiling/coiling machine 2 reel jaws before the machine in the heating furnace 1 along machine front guide 4, and jaw is subjected to the Driven by Hydraulic Cylinder closure, bites roll coil of strip head and is wrapped on the reel.
Batch: uncoiling/coiling machine 2 batches the milled sheet band before the machine in the heating furnace 1 by being installed in before the box machine; By the resistance wire that is provided with in the stove roll coil of strip is carried out online heating simultaneously, heating furnace work temperature is controlled between 200～500 ℃ (being furnace temperature); And adopt thermocouple temperature measurement and control furnace temperature automatically, in the stove everywhere the temperature difference be no more than ± 10 ℃, and adopt nitrogen or argon gas to protect;
Mobile uncoiling/coiling machine: open behind goalkeeper's machine of heating furnace 1 one sides before the machine uncoiling/coiling machine 2 by track behind the machine 5 traversing come out in the stove; Heating furnace both sides, top and bottom are provided with resistance wire, and the furnace bottom bottom is provided with the track for uncoiling/coiling machine turnover, has the window that passes through for the strip material to milling train 7 one ends; Uncoiling/coiling machine cantilevered reel part can pass in and out heating furnace, and its running part is stayed outside the stove all the time; But uncoiling/coiling machine adopts the expanding-contracting type of heat resisting steel making and moves by cardan axis and direct current step frequency motor.
Reel mounting: casting that 2.0～10.0mm is thick volume or 6.0～10.0mm hot rolled coil are installed on the reel that has jaw of uncoiling/coiling machine 2 behind the machine; Roll coil of strip diameter is 450～650mm.
Return: uncoiling/coiling machine 2 after returning behind the machine in the heating furnace 1 by track behind the machine 5 cuts out door behind the machine.
Heating: by the resistance wire that is provided with in the heating furnace roll coil of strip is heated, heating furnace work temperature is controlled between 200～500 ℃ (being furnace temperature); And adopt thermocouple temperature measurement and control furnace temperature automatically, in the stove everywhere the temperature difference be no more than ± 10 ℃, and adopt nitrogen or argon gas to protect; Body of heater is built by laying bricks or stones for steel construction refractory brick and fire-resistant cotton heat-insulation layer, and shell is aluminium sheet or steel plate, and the stove outer covering temperature is lower than 40 ℃.
The traction of uncoiling and straight peen: the machine back guide 4 that utilizes air cylinder driven between the straight peen draw-gear 6 behind the uncoiling/coiling machine 2 and machine is adopted behind the machine that is installed in uncoiling, guide plate inserts between the roll coil of strip head and the roll coil of strip when uncoiling, and pressure roller 3 is being pressed the roll coil of strip behind the lifting moving machine, uncoiling/coiling machine backward rotation, roll coil of strip head carries out the traction of uncoiling straight peen along a pair of carry-over pinch rolls roll gap of configuration up and down that guide plate enters the straight peen draw-gear, is guided into milling train 7 roll gap while the roll coil of strip flattens; Its pressure roller is arranged in the heating furnace and uncoiling/coiling machine top, and coexists on the steelframe with uncoiling/coiling machine, and its straight peen draw-gear is outside stove; Pressure roller, guide plate and straight peen draw-gear are heat resisting steel and make, and the straight peen draw-gear is installed on the steel structure frame, and its carry-over pinch rolls two is depressed or hydraulic pressure is depressed by electronic, and can adjust roll gap between two carry-over pinch rolls according to made-up belt thickness.
Rolling: as to adopt reversible two rollers or four-high mill 7 to be rolled processing; In order to guarantee that milling train can enter operate as normal once driving, by adopting the preheating method breaker roll to carry out preheating, pre-thermal recovery town gas utilizes the T type and has the steel pipe of some apertures before rolling, light behind the feeding coal gas and carry out the roll preheating, preheat temperature is controlled between 100～200 ℃; In order to keep good plate shape, the interior cold mode of roll employing prevents to be out of shape heat and causes roll stage casing intensification projection.
Traction: band goes out straight peen draw-gear 6 before the machine that enters behind the mill roll-gap, enters before the machine uncoiling/coiling machine 2 reel jaws before the machine in the heating furnace 1 along machine front guide 4, and jaw is subjected to the Driven by Hydraulic Cylinder closure, bites roll coil of strip head and is wrapped on the reel.
Batch: uncoiling/coiling machine 2 batches the milled sheet band before the machine in the heating furnace 1 by being installed in before the box machine; By the resistance wire that is provided with in the stove roll coil of strip is carried out online heating simultaneously, heating furnace work temperature is controlled between 200～500 ℃ (being furnace temperature); And adopt thermocouple temperature measurement and control furnace temperature automatically, in the stove everywhere the temperature difference be no more than ± 10 ℃, and adopt nitrogen or argon gas to protect;
Set up tension force: in repeat-rolling, owing to before and after milling train, in the heating furnace of configuration separately controllable uncoiling/coiling machine is arranged, thereby the belt method of the belt tension of batching before uncoiling after first passage just can be taked machine, the machine is rolling, promptly utilize their speed difference to form rolling tensile force, and by the tensiometer that is provided with before the machine tension force is controlled between 10～30MPa, realize that tension force belt method is rolling.
Repeat-rolling: pressure roller 3 carries out before uncoiling, the machine that straight peen draw-gear 6 carries out that straight peen traction, milling train 7 are rolled to the roll coil of strip before uncoiling/coiling machine 2 and machine front guide 4 and the machine before machine, uncoiling/coiling machine 2 such as batches at processing step behind the machine, and multi-pass carries out online heating rolling incessantly repeatedly and is machined to thickness: 0.3～5.0mm wrought magnesium alloy thin plate and band.
Unload volume: open heating furnace one side door and go out heating furnace and carry out finished product and unload volume uncoiling/coiling machine is traversing by track.
Beneficial effect:
Since adopt onlinely repeatedly heat, uncoiling, rolling, the processing of belt method such as batch, the wrought magnesium alloy thin plate and band yield rate can be brought up to more than 60%, mill speed can improve 2～4 times, and minimizing energy resource consumption, energy utilization rate improves more than 20%, and shortened process, meet the energy-saving and cost-reducing innovation policies of country.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is; Technological process equipment figure;
Among Fig. 1,1 heating furnace, 2 uncoilings/coiling machine, 3 pressure rollers, 4 guide plates, 5 tracks, 6 straight peen draw-gears, 7 reversible mills.
Embodiment one:
The AZ31 wrought magnesium alloy thin plate and band of rolling processing 0.5 * 1000mm;
Behind the machine uncoiling/uncoiler 2 by 5 slaves of track behind the machine after traversing come out in the heating furnace 1; The material volume of thick 2.0mm is installed on uncoiling/coiling machine 2 reels; Return heating in the stove then; Adopt nitrogen or argon gas to protect simultaneously, heating furnace 1 operating temperature: 480 ℃; Pressing the roll coil of strip by pressure roller behind the machine 3, uncoiling/coiling machine 2 backward rotation, roll coil of strip head enters along the machine back guide 4 of uncoiling that the carry-over pinch rolls roll gap of straight peen draw-gear 6 carries out the uncoiling straight peen behind the machine, is guided into milling train 7 roll gap while the roll coil of strip flattens; Carry out preheating, preheat temperature by employing preheating method breaker roll before rolling: 150 ℃; The interior cold mode of roll employing prevents to be out of shape heat and causes roll stage casing intensification projection; Batch/uncoiler 2 reel jaws before the band that shuts out straight peen draw-gear 6 before the machine enters machine, the jaw closure is bitten roll coil of strip head and is wrapped on the reel and batches; Carry out reverse rolling processing again; Each passage all adopts the tension force of 10～30MPa to be rolled; Carry out by track uncoiling/coiling machine being shifted out heating furnace after online heating rolling is machined to trimmed size incessantly repeatedly through multi-pass and unload volume.
Claims (8)
1. deformation magnesium alloy belt type rolling method, it is characterized in that: heating furnace (1), uncoiling/coiling machine (2), pressure roller (3), guide plate (4), track (5), straight peen draw-gear (6), reversible mill (7) constitute, and carry out multi-pass and carry out heating rolling incessantly repeatedly and process thickness: the wrought magnesium alloy thin plate and band of 0.3～5.0mm.
2. according to a kind of deformation magnesium alloy belt type rolling method described in the claim 1, it is characterized in that: (2) mobile uncoiling/coiling machine, reel mounting, return, heating, uncoiling and the traction of (6) straight peen, rolling, the step drawing, batch, set up tension force, repeat-rolling, unload volume; Carry out online heating rolling repeatedly until processing the finished product wrought magnesium alloy thin plate and band that thickness is 0.3～5.0mm.
3. according to a kind of deformation magnesium alloy belt type rolling method described in the claim 1, it is characterized in that: both sides, top and bottom are provided with resistance wire in (1) heating furnace, and the furnace bottom bottom is provided with (5) track, have the window that passes through for the strip material to milling train one end; (2) running part of uncoiling/coiling machine is stayed outside the stove all the time; Body of heater is built by laying bricks or stones for steel construction refractory brick and fire-resistant cotton heat-insulation layer, and shell is aluminium sheet or steel plate.
4. according to a kind of deformation magnesium alloy belt type rolling method described in the claim 1, it is characterized in that: (1) heating furnace work temperature is controlled between 200～500 ℃; And adopt thermocouple temperature measurement and control furnace temperature automatically, in the stove everywhere the temperature difference be no more than ± 10 ℃, adopt nitrogen or argon gas to protect simultaneously.
5. according to a kind of deformation magnesium alloy belt type rolling method described in the claim 1, it is characterized in that: utilize the speed difference between (2) uncoiling/coiling machine in (1) heating furnace of milling train front and back to form rolling tensile force, and by the tensiometer that is provided with before the machine tension force is controlled between 10～30MPa, it is rolling to realize that multi-pass carries out tension force belt method incessantly.
6. according to a kind of deformation magnesium alloy belt type rolling method described in the claim 1, it is characterized in that: carry out preheating by employing preheating method breaker roll before rolling, pre-thermal recovery town gas, utilize the T type and have the steel pipe of some apertures, light behind the feeding coal gas and carry out the roll preheating, preheat temperature is controlled between 100～200 ℃.
7. according to a kind of deformation magnesium alloy belt type rolling method described in the claim 1, it is characterized in that: the interior cold mode of roll employing prevents to be out of shape heat and causes roll stage casing intensification projection.
8. according to a kind of deformation magnesium alloy belt type rolling method described in the claim 1, it is characterized in that: the processing method that front and back (1) heating furnace, front and back (2) uncoiling/coiling machine, front and back pressure roller, front and back (4) guide plate, front and back (5) track and front and back (6) straight peen draw-gear are adopted is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200710189683 CN101168167B (en) | 2007-10-09 | 2007-10-09 | Deformation magnesium alloy belt type rolling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710189683 CN101168167B (en) | 2007-10-09 | 2007-10-09 | Deformation magnesium alloy belt type rolling method |
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| CN101168167A true CN101168167A (en) | 2008-04-30 |
| CN101168167B CN101168167B (en) | 2013-02-27 |
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| CN102240676A (en) * | 2011-05-11 | 2011-11-16 | 北京科技大学 | Rolling device for preparing high-toughness high-formability magnesium alloy sheet strip coil |
| CN102639260A (en) * | 2009-11-24 | 2012-08-15 | 住友电气工业株式会社 | Magnesium alloy coiled material |
| CN103203359A (en) * | 2012-01-13 | 2013-07-17 | 宝山钢铁股份有限公司 | Rolling method for improving bite conditions of reversible mill |
| CN103273274A (en) * | 2013-06-07 | 2013-09-04 | 中北大学 | Forming method for magnesium alloy boards |
| CN103521552A (en) * | 2013-10-09 | 2014-01-22 | 重庆市科学技术研究院 | Magnesium-alloy-plate rolling uncoiler unit |
| CN103890216A (en) * | 2011-03-11 | 2014-06-25 | 法塔亨特公司 | Magnesium roll mill |
| CN104028562A (en) * | 2014-06-05 | 2014-09-10 | 东北大学 | Method for measuring temperature change in magnesium alloy rolling process |
| CN105149355A (en) * | 2015-09-30 | 2015-12-16 | 中镁镁业有限公司 | Asynchronous warm-rolling device for wide magnesium alloy plate strips |
| CN105327937A (en) * | 2015-10-28 | 2016-02-17 | 中色科技股份有限公司 | Magnesium alloy plate and strip rolling production line and rolling molding production method thereof |
| CN108787779A (en) * | 2017-04-26 | 2018-11-13 | 中国宝武钢铁集团有限公司 | A kind of magnesium alloy even squeezes temperature control continuous rolling process and system |
| CN108787762A (en) * | 2017-04-26 | 2018-11-13 | 中国宝武钢铁集团有限公司 | A kind of method and system of the adaptive temperature control continuous rolling of magnesium alloy |
| CN114011876A (en) * | 2021-10-25 | 2022-02-08 | 鞍钢重型机械有限责任公司 | Production process of magnesium alloy coiled material capable of realizing repeated use of strip head and strip tail |
| CN115254954A (en) * | 2022-08-31 | 2022-11-01 | 中色科技股份有限公司 | Copper plate and strip hot rolling method |
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| CN102639260A (en) * | 2009-11-24 | 2012-08-15 | 住友电气工业株式会社 | Magnesium alloy coiled material |
| US9752220B2 (en) | 2009-11-24 | 2017-09-05 | Sumitomo Electric Industries, Ltd. | Magnesium alloy coil stock |
| US9248482B2 (en) | 2011-03-11 | 2016-02-02 | Fata Hunter, Inc. | Magnesium roll mill |
| CN103890216B (en) * | 2011-03-11 | 2016-01-06 | 法塔亨特公司 | Magnesium material roller mill |
| CN103890216A (en) * | 2011-03-11 | 2014-06-25 | 法塔亨特公司 | Magnesium roll mill |
| CN102240676A (en) * | 2011-05-11 | 2011-11-16 | 北京科技大学 | Rolling device for preparing high-toughness high-formability magnesium alloy sheet strip coil |
| CN102240676B (en) * | 2011-05-11 | 2013-07-03 | 北京科技大学 | Rolling device for preparing high-toughness high-formability magnesium alloy sheet strip coil |
| CN103203359A (en) * | 2012-01-13 | 2013-07-17 | 宝山钢铁股份有限公司 | Rolling method for improving bite conditions of reversible mill |
| CN103203359B (en) * | 2012-01-13 | 2015-04-01 | 宝山钢铁股份有限公司 | Rolling method for improving bite conditions of reversible mill |
| CN103273274B (en) * | 2013-06-07 | 2015-06-10 | 中北大学 | Forming method for magnesium alloy boards |
| CN103273274A (en) * | 2013-06-07 | 2013-09-04 | 中北大学 | Forming method for magnesium alloy boards |
| CN103521552A (en) * | 2013-10-09 | 2014-01-22 | 重庆市科学技术研究院 | Magnesium-alloy-plate rolling uncoiler unit |
| CN104028562A (en) * | 2014-06-05 | 2014-09-10 | 东北大学 | Method for measuring temperature change in magnesium alloy rolling process |
| CN104028562B (en) * | 2014-06-05 | 2016-01-20 | 东北大学 | A kind of method measuring variations in temperature in magnesium alloy rolling process |
| CN105149355A (en) * | 2015-09-30 | 2015-12-16 | 中镁镁业有限公司 | Asynchronous warm-rolling device for wide magnesium alloy plate strips |
| CN105149355B (en) * | 2015-09-30 | 2017-09-01 | 中镁镁业有限公司 | The asynchronous warm-rolling device of wide magnesium alloy tabular band |
| CN105327937A (en) * | 2015-10-28 | 2016-02-17 | 中色科技股份有限公司 | Magnesium alloy plate and strip rolling production line and rolling molding production method thereof |
| CN108787779A (en) * | 2017-04-26 | 2018-11-13 | 中国宝武钢铁集团有限公司 | A kind of magnesium alloy even squeezes temperature control continuous rolling process and system |
| CN108787762A (en) * | 2017-04-26 | 2018-11-13 | 中国宝武钢铁集团有限公司 | A kind of method and system of the adaptive temperature control continuous rolling of magnesium alloy |
| CN114011876A (en) * | 2021-10-25 | 2022-02-08 | 鞍钢重型机械有限责任公司 | Production process of magnesium alloy coiled material capable of realizing repeated use of strip head and strip tail |
| CN115254954A (en) * | 2022-08-31 | 2022-11-01 | 中色科技股份有限公司 | Copper plate and strip hot rolling method |
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| CN101168167B (en) | 2013-02-27 |
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Effective date of registration: 20170815 Address after: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: China Aluminum Luoyang Copper Processing Co., Ltd. Address before: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: Zhonglu Luoyang Copper Industry Co., Ltd. |
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