CN104384187A - Magnesium alloy sheet rolling device - Google Patents
Magnesium alloy sheet rolling device Download PDFInfo
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- CN104384187A CN104384187A CN201410743354.5A CN201410743354A CN104384187A CN 104384187 A CN104384187 A CN 104384187A CN 201410743354 A CN201410743354 A CN 201410743354A CN 104384187 A CN104384187 A CN 104384187A
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Abstract
The invention discloses a magnesium alloy sheet rolling device and belongs to metal sheet rolling technology. The magnesium alloy sheet rolling device solves the technical problem of low rolling efficiency caused by low heating speed, low heating efficiency and poor temperature control precision for rolls in the prior art. The magnesium alloy sheet rolling device is characterized in that a sleeve sleeves each of two rolls, a back-up roll provided with a tensioning sleeve is arranged in each sleeve and is symmetric to the corresponding roll in position, and each back-up roll is connected with a back-up vertical post fixed on a frame and can be driven by the corresponding roll to rotate around its axis along with the corresponding sleeve; an eddy-current heating coil connected with the frame is mounted on one side, where supplied materials for rolling are positioned, of each sleeve around the sleeve wall; a temperature sensor contacting with the corresponding sleeve is arranged at the position between a magnesium alloy sheet and each eddy-current heating coil and is connected with a heating control system through a wire. The magnesium alloy sheet rolling device is used for rolling magnesium alloys, titanium alloys and molybdenum alloys and has the advantages of high heating speed, high temperature control precision, good stability, heating safety and easiness in maintenance.
Description
Technical field
The invention belongs to sheet metal rolling technical field, be specifically related to a kind of magnesium alloy plate rolling device.
Background technology
Magnesium alloy has that density is little, specific strength and specific stiffness is high, electromagnetic wave shielding is good, damping shock absorption is good and be easy to the advantages such as machining, has broad application prospects in fields such as Aero-Space, automobile and electronic products.China is magnesium resource big country, and reserves and former magnesium export volume all occupy first place in the world, but has the magnesium alloy plate of high added value and the production technology comparatively backwardness of section bar, limits the range of application of magnesium alloy.
One of difficult point of magnesium alloy plate rolling technique is rolling temperature range narrower (being generally 50 DEG C), and magnesium alloy specific heat capacity is low, rapid heat dissipation.During Rolling Production magnesium alloy plate, as too low in roller surface temperature, when magnesium plate and roll contact, magnesium plate temperature can reduce rapidly, ductility deteriorates, and cause rolling plate and produce face crack and raw edges, lumber recovery declines, and cost increases.Therefore, in magnesium alloy rolling process, roll must be heated to a suitable temperature ranges.
At present, conventional roll mode of heating, can be divided into the heating of roll entirety and online surface heating.The heating of roll entirety generally uses roller heating stove, puts in roller heating stove the temperature being heated to and specifying into, then taken out from stove by roll by roll, be rolled, time below roll temperature drop to operating temperature, need quit work, again load in stove and heat, operate and so forth.This mode of heating uses inconvenient, affects the operating efficiency of milling train.The heating of roll entirety also can adopt the heater of the inner water flowing of roll or logical oil, or installation thermocouple heats, although this heater achieves the on-line heating of roll, but its drawback is that the roll of hollow-core construction not only needs special facture, and hollow roll can cause rigid to reduce, the technique needs of larger draught pressure cannot be adapted to.This heater also exists: firing rate is comparatively slow, and roll is longer for preheating time, consumes energy high, and large by heated roll thermal inertia, roller temperature control accuracy is low, changes roll difficulty, cannot adapt to the shortcoming that present-day mill High-efficient Production requires.
Roll surface heating normally utilizes combustion heat source breaker roll surface directly to heat, and removes thermal source, then be rolled after reaching target temperature.Because roll constantly dispels the heat, between different blank and roll, even the diverse location of same blank is different from the contact temperature difference between roll, and the structural homogenity of rolled plate is affected; And due to will rolling be stopped at set intervals, then heated roll, rolling efficiency is low, and naked light burning simultaneously exists potential safety hazard.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, provide a kind of rolling device of magnesium alloy plate, the firing rate of solution prior art breaker roll is comparatively slow, the efficiency of heating surface is low, temperature control precision is poor, causes the technical problem that rolling efficiency is low.
The present invention is achieved through the following technical solutions:
A kind of rolling device of magnesium alloy plate, comprise: be fixed on two laterally zygomorphic rolls in frame, it is characterized in that: two described rolls are set with a sleeve, in described sleeve, at described roll symmetric position, the backing roll arranging tensioning sleeve, described backing roll is connected with the support post be fixed in described frame, and can rotate with sleeve rotating under the driving of its axis at roll; Be positioned at rolling supplied materials side, the eddy heating for heating coil be connected with frame installed by described sleeve around its barrel; Between magnesium alloy plate and described eddy heating for heating coil, arrange the temperature sensor with described barrel contacts, described temperature sensor is connected with heating control system wire.
Further, described support post is provided with the elongated hole for adjustable supporting roll position.
Further, described sleeve is made up of heat-resistance high-strength steel, and its wall thickness is 8 ~ 10 millimeters.
Further, the diameter of described sleeve is 1.2 ~ 1.5 times of roller diameter, and the length of described sleeve is equal with the length of roll.
The present invention compared with prior art, has the following advantages and beneficial effect:
Present invention employs roll sleeve and sleeve heater, achieve the constant temperature rolling of the difficult deformable metals such as magnesium alloy, have that firing rate is fast, temperature control precision is high, good stability, heating safety, advantage for ease of maintenaince, solve the technical problem that existing roll entirety heats and roll surface heating speed is slow, the efficiency of heating surface is low, temperature control precision is low, be particularly suitable for the Rolling Production of the difficult deformable metals such as magnesium alloy, titanium alloy, molybdenum alloy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention (stereogram).
Detailed description of the invention
Embody the exemplary embodiments of feature & benefits of the present invention, will describe in detail in the following description by reference to the accompanying drawings.Be understood that the present invention can have various changes in different embodiments, it neither departs from protection scope of the present invention, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the present invention.
As shown in Figure 1, a kind of rolling device of magnesium alloy plate, comprise: be fixed on two laterally zygomorphic rolls 8 in frame 1, two described rolls 8 are set with a sleeve 2, in described sleeve 2, at described roll 8 symmetric position, the backing roll 7 arranging tensioning sleeve, described backing roll 7 is connected with the support post 6 be fixed in described frame 1, and can rotate with sleeve rotating under the driving of its axis at roll; Be positioned at rolling supplied materials side, described sleeve 2 installs eddy heating for heating coil 3 around its barrel; Between magnesium alloy plate 5 and described eddy heating for heating coil 3, arrange the temperature sensor 4 contacted with described sleeve 2, described temperature sensor 4 is connected with heating control system wire, is regulated the heating power of eddy heating for heating coil 3 by heating control system.
Described support post 6 is provided with the elongated hole 6.1 for adjustable supporting roll 7 position, is convenient to carry out tensioning sleeve 2 with backing roll 7.
Described sleeve 2 is made up of heat-resistance high-strength steel, and its wall thickness is 8 ~ 10 millimeters, can meet the requirement of strength required for rolling magnesium alloy plate.
The diameter of described sleeve 2 is 1.2 ~ 1.5 times of roller diameter, and the length of described sleeve 2 is equal with the length of roll.
Adopt the method for rolling magnesium alloy plate of the present invention, its concrete steps are:
1. adjusting roll gap gap by technological requirement is 1mm, and the gap size namely adjusted between upper and lower two sleeves 2 is 1mm;
2. adjust the position of support post 6 upper backup roll 7, make sleeve 2 firmly be sleeved between backing roll 7 and roll 8;
3. open milling train, make roll 8 by setting speed 60 revs/min start rotate, sleeve 2 roll 8 drive next play rotation;
4. eddy heating for heating coil 3 is energized, and heats to sleeve 2, and simultaneous temperature sensor 4 starts the temperature detecting sleeve 2, and temperature data is fed back to heating control system; When sleeve 2 temperature is lower than design temperature 300 DEG C, eddy heating for heating coil 3 heating with full power, when sleeve 2 temperature is higher than design temperature 300 DEG C, control system is turned down eddy heating for heating coil 3 power or is stopped heating; Along with sleeve 2 conducts heat to roll 8, magnesium alloy plate 5, sleeve 2 temperature declines gradually, and when temperature is reduced to design temperature less than 300 DEG C, control system heightens eddy heating for heating coil 3 power, improve sleeve 2 temperature, finally make the temperature stabilization of sleeve 2 design temperature about 300 DEG C;
5. magnesium alloy plate 5 thick for 3mm is preheated to set point of temperature 300 DEG C;
6., when the temperature of sleeve 2 reaches setting value, the rolling of magnesium alloy plate 5 is carried out.
The present invention specifically can implement in a variety of forms and not depart from spirit or the essence of invention, so be to be understood that, above-described embodiment is not limited to aforesaid details, and should explain widely in claim limited range, therefore fall into change in claim or its equivalent scope and remodeling and all should be claim and contained.
Claims (4)
1. the rolling device of a magnesium alloy plate, comprise: be fixed on two laterally zygomorphic rolls (8) in frame (1), it is characterized in that: two described rolls (8) are set with a sleeve (2), in described sleeve (2), at described roll (8) symmetric position, the backing roll (7) arranging tensioning sleeve, described backing roll (7) is connected with the support post (6) be fixed in described frame (1), and can rotate with sleeve rotating under the driving of its axis at roll; Be positioned at rolling supplied materials side, the eddy heating for heating coil (3) be connected with frame installed by described sleeve (2) around its barrel; Be positioned between magnesium alloy plate (5) and described eddy heating for heating coil (3), arrange the temperature sensor (4) contacted with described sleeve (2), described temperature sensor (4) is connected with heating control system wire.
2. according to the rolling device of magnesium alloy plate described in claim 1, it is characterized in that: described support post (6) is provided with the elongated hole (6.1) for adjustable supporting roll position.
3. according to the rolling device of magnesium alloy plate described in claim 1, it is characterized in that: described sleeve (2) is made up of heat-resistance high-strength steel, its wall thickness is 8 ~ 10 millimeters.
4. according to the rolling device of magnesium alloy plate described in claim 1 or 3, it is characterized in that: the diameter of described sleeve (2) is 1.2 ~ 1.5 times of roller diameter, the length of described sleeve (2) is equal with the length of roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743354.5A CN104384187B (en) | 2014-12-08 | 2014-12-08 | A kind of rolling device of magnesium alloy plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743354.5A CN104384187B (en) | 2014-12-08 | 2014-12-08 | A kind of rolling device of magnesium alloy plate |
Publications (2)
| Publication Number | Publication Date |
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| CN104384187A true CN104384187A (en) | 2015-03-04 |
| CN104384187B CN104384187B (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410743354.5A Expired - Fee Related CN104384187B (en) | 2014-12-08 | 2014-12-08 | A kind of rolling device of magnesium alloy plate |
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| CN (1) | CN104384187B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424137A (en) * | 2016-10-25 | 2017-02-22 | 沈阳理工大学 | Zero-broadside magnesium alloy board rolling method and apparatus used in method |
| CN106475417A (en) * | 2015-08-28 | 2017-03-08 | 宝山钢铁股份有限公司 | A kind of device and method for being heated to roll |
| CN113426835A (en) * | 2021-08-24 | 2021-09-24 | 南通维益机电有限公司 | Hot rolling device for magnesium-aluminum alloy plate |
| CN113680933A (en) * | 2021-08-27 | 2021-11-23 | 中国兵器工业第五九研究所 | Forming method of thin-wall magnesium alloy ring piece |
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| JPH0780532A (en) * | 1993-09-10 | 1995-03-28 | Ishikawajima Harima Heavy Ind Co Ltd | Device for heating coil in coil box |
| CN101249512A (en) * | 2008-04-17 | 2008-08-27 | 上海交通大学 | Magnesium alloy sheet material roller milling roller heating system |
| CN102179404A (en) * | 2011-03-18 | 2011-09-14 | 东北大学 | Hot roller warm-rolling device and method for metal plates and strips |
| WO2012008380A1 (en) * | 2010-07-13 | 2012-01-19 | 住友電気工業株式会社 | Magnesium alloy coiled material |
| CN202921654U (en) * | 2012-12-17 | 2013-05-08 | 黑龙江同禹傲思铝业股份有限公司 | Heating control apparatus of magnesium alloy sheet material roller |
| CN103240275A (en) * | 2013-05-14 | 2013-08-14 | 吉林大学 | On-line heating device and heating method of magnesium alloy sheet warm rolling rollers |
| CN203408987U (en) * | 2013-05-07 | 2014-01-29 | 太原科技大学 | Insulation device for rolled magnesium alloy conveying roller table |
| CN103658189A (en) * | 2013-11-16 | 2014-03-26 | 中国重型机械研究院股份公司 | Device for on-line roller heating and temperature controlling for warm-rolling mill |
-
2014
- 2014-12-08 CN CN201410743354.5A patent/CN104384187B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0780532A (en) * | 1993-09-10 | 1995-03-28 | Ishikawajima Harima Heavy Ind Co Ltd | Device for heating coil in coil box |
| CN101249512A (en) * | 2008-04-17 | 2008-08-27 | 上海交通大学 | Magnesium alloy sheet material roller milling roller heating system |
| WO2012008380A1 (en) * | 2010-07-13 | 2012-01-19 | 住友電気工業株式会社 | Magnesium alloy coiled material |
| CN102179404A (en) * | 2011-03-18 | 2011-09-14 | 东北大学 | Hot roller warm-rolling device and method for metal plates and strips |
| CN202921654U (en) * | 2012-12-17 | 2013-05-08 | 黑龙江同禹傲思铝业股份有限公司 | Heating control apparatus of magnesium alloy sheet material roller |
| CN203408987U (en) * | 2013-05-07 | 2014-01-29 | 太原科技大学 | Insulation device for rolled magnesium alloy conveying roller table |
| CN103240275A (en) * | 2013-05-14 | 2013-08-14 | 吉林大学 | On-line heating device and heating method of magnesium alloy sheet warm rolling rollers |
| CN103658189A (en) * | 2013-11-16 | 2014-03-26 | 中国重型机械研究院股份公司 | Device for on-line roller heating and temperature controlling for warm-rolling mill |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475417A (en) * | 2015-08-28 | 2017-03-08 | 宝山钢铁股份有限公司 | A kind of device and method for being heated to roll |
| CN106424137A (en) * | 2016-10-25 | 2017-02-22 | 沈阳理工大学 | Zero-broadside magnesium alloy board rolling method and apparatus used in method |
| CN113426835A (en) * | 2021-08-24 | 2021-09-24 | 南通维益机电有限公司 | Hot rolling device for magnesium-aluminum alloy plate |
| CN113426835B (en) * | 2021-08-24 | 2021-10-29 | 南通维益机电有限公司 | Hot rolling device for magnesium-aluminum alloy plate |
| CN113680933A (en) * | 2021-08-27 | 2021-11-23 | 中国兵器工业第五九研究所 | Forming method of thin-wall magnesium alloy ring piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104384187B (en) | 2016-03-09 |
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Granted publication date: 20160309 Termination date: 20181208 |