CN106493340A - A kind of novel magnesium alloy casting turns liquid system and device - Google Patents
A kind of novel magnesium alloy casting turns liquid system and device Download PDFInfo
- Publication number
- CN106493340A CN106493340A CN201611073074.3A CN201611073074A CN106493340A CN 106493340 A CN106493340 A CN 106493340A CN 201611073074 A CN201611073074 A CN 201611073074A CN 106493340 A CN106493340 A CN 106493340A
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- liquid
- casting
- magnesium alloy
- front case
- turns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
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- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Abstract
Present invention relates particularly to a kind of novel magnesium alloy casting turns liquid system and device, belong to magnesium alloy board casting unit equipment technical field.Turning the presence of liquid system for current with roll-casting of magnesium alloy：Front case liquid level is unstable, system temperature and flow-control are inaccurate, difficult in maintenance etc., easily causes that the solidification of Casting Rolled Sheet band is uneven, easily form the defects such as segregation, severe edge fracture and spillage of material.The system and device has been invented, including：Servo with lower end tapered bore turns liquid pump, self adaptation thermal expansion and turns case and multi-functional top cover, precise control of flew blocking device, liquid level and Cryocooler Temperature Closed Loop Control System etc. before liquid pipe, combination type.The invention provides a kind of safe, economical, be easy to the roll-casting of magnesium alloy that safeguards to turn liquid system and device, the system and standing furnace and tilting casting and rolling machine is convenient docks, and realize temperature and precise control of flew in system.Provide safeguard for improving material quality, lumber recovery and the reduces cost of casting magnesium alloy board, with broad prospect of application.
Description
Technical field
The invention belongs to magnesium alloy board casting unit equipment technical field, and in particular to a kind of novel magnesium alloy casting turns
Liquid system and device.
Background technology
Roll-casting of magnesium alloy is the organic unity by molten state alloy graining and rolling deformation, i.e., aluminium alloy is in crystallization and freezing
Bear pressure processing and plastic deformation simultaneously, complete all processes from liquid metal to solid-state strip within a short period of time, be
A kind of near-net forming, short route magnesium alloy board production technology.Traditional hot-rolled process is eliminated, simplifies production technology, shortened
Production cycle, mass energy is saved, reduce equipment investment, reduce production cost, while the strip that casting goes out can be obtained preferably
Microstructure and good mechanical property, with huge technology and the economic development potentialities.
The units such as Thyssen company, Australia CSIR O take the lead in have developed magnesium alloy twin-roll thin strip casting equipment.
The Luoyang Copper Processing Group Co Ltd of China, Shanxi silver brilliance magnesium company successively establish and can produce fabric width 600mm's
Roll-casting of magnesium alloy board assembly line.But these production lines there are problems that in various degree following prominent：1. molten bath or front case liquid level be not
Stablize and cause oxidation, burning, even explode；2. temperature and pouring flow rate control are inaccurate, cause the solidification of Casting Rolled Sheet band uneven
Even, the easy formation mass defect such as segregation and severe edge fracture；3. casting complete or catastrophic failure in the case of, magnesium liquid in casting system
Cannot reclaim, and cause great potential safety hazard and waste of material；4. front case is overall structure, is not easy to clear up, and which is protected
Warm heater is not easy to repairing etc. when breaking down.
Therefore, the present invention develops a kind of novel magnesium alloy casting for the bottleneck problem that above-mentioned roll-casting of magnesium alloy process faces
Roll and turn liquid system and device, technical guarantee is provided for roll-casting of magnesium alloy strip feed link.The device has broad application prospects
With great economic and social benefit.
Content of the invention
It is an object of the present invention to provide a kind of roll-casting of magnesium alloy that is safe, economic, being easy to maintenance turns liquid system and device, it is raising
The material quality of casting magnesium alloy board, lumber recovery and reduces cost provide safeguard.The liquid system and device that turns can be with standing
Stove and tilting casting and rolling machine convenient docking and maintenance on the premise of safety is guaranteed, and realize turning standing furnace liquid level during liquid,
Temperature and precise control of flew in front case liquid level, system；When rolling line breaks down, front case and turn lossless time of magnesium liquid in liquid system
It flow to standing furnace；Front case inner bag is separable with shell, is convenient to clean, safeguards.
For achieving the above object, the present invention takes following design：
A kind of novel magnesium alloy casting turns liquid system and device, as shown in figure 1, including：Servo with lower end tapered bore turns liquid
Pump；Self adaptation thermal expansion turns liquid pipe；Case before the heat preserving type combination of inner bag and shell independence；With heat-insulation layer, shielding gas manhole appendix,
Liquid level detection device, temperature-detecting device；Pneumatic flowrate precise control blocking device；And liquid level and Cryocooler Temperature Closed Loop Control System
Deng.Concrete invention process is as follows.
The servo with lower end tapered bore turns liquid pump, it is characterised in that：In order to after the completion of casting or unit occur
During failure, in system, magnesium liquid energy is back to standing furnace, and avoids turning liquid pump lower end charging vestibule aneroid state alloy residual condensation collection
Tie, whole system device is connected with standing furnace and lip in 15 ° of inclination angles, and liquid pump charging chamber bottom will be turned and be designed as 160 ° of cones
Shape vestibule, as shown in Figure 2.The invention overcome turn liquid pump lower end charging vestibule for flat when, easily make residual liquid alloy condense
Assemble, it is difficult to the defect that cleaning results in blockage and cannot work.
The self adaptation thermal expansion turns liquid pipe, it is characterised in that：During roll-casting of magnesium alloy turns liquid, entirely turn in liquid system
Temperature need to be maintained at 680 ~ 700 DEG C, will necessarily produce certain thermal expansion amount in system unit, and turn liquid system and smelting furnace and
Casting and rolling machine is Hard link, it is impossible to absorbing thermal expansion amount, thus system unit can be caused to deform, and particularly turns liquid pipe partial outer face
Added with attemperator and heat-insulation layer and yielding, there is potential magnesium liquid and reveal potential safety hazard.In this regard, the present invention have devised
Self adaptation thermal expansion turns liquid pipeline, that is, turning to install a FlexbleJoint in the middle part of liquid pipe additional, absorbed in whole system with this
Thermal expansion amount, as shown in Figure 3.
Case before the combination type, it is characterised in that：Front case is made up of inner bag and shell two parts, inner bag with turn liquid pipe and confession
Material mouth is affixed to have SiC anti-oxidation and antisepsis coatings for overall and inner surface, and shell is two halves formula, and it is stainless that material is high temperature resistant
Steel；Feed tip is circle with inner bag fixed connecting end, is square with lip connection end；Heater and guarantor is furnished between inner bag and shell
Warm layer, as shown in Figure 4.Before combination type, case design, is easy to the clear of the dismounting of whole system, the repair and maintenance of heater and inner bag
Reason.
The front case liquid level and system temperature accuracy-control system, it is characterised in that：Height between front case liquid level and lip
Difference and aluminium alloy are delivered to temperature difference during lip by standing furnace, are the key factors for determining Casting Rolled Sheet quality.The present invention is adopted
Take servo and turn liquid pump and the electronic caulked device being arranged in front case and the Level meter linkage control being installed on front case top cover
System, realizes the precise control of flow, makes the liquid surface height controlling precision ± 1mm in front case；Meanwhile, the present invention adopts resistance heating
To turn liquid pipe and front case heating, and by standing furnace, turn liquid pipe, front case and heating assembly temperature linkage detection, closed loop control, make magnesium
Liquid is delivered to front case by standing furnace, and the change of magnesium liquid temp is less than 10 DEG C.
By the invention process, invent a kind of safe, economic novel magnesium alloy casting and turn liquid system and device, can achieve
Improve the purpose of the material quality, lumber recovery and reduces cost of casting magnesium alloy board.
Advantage of the present invention and good effect.
1. the present invention is accurately controlled front case liquid level and system temperature, and effective control Casting Rolled Sheet band solidifies uneven, easy shape
Into the mass defect such as segregation and severe edge fracture, lumber recovery and plate property is improved, so as to production cost being greatly reduced, improving production
Benefit.
2. apparatus of the present invention, even if in the case of casting line other devices break down, in feasible system, magnesium liquid is lossless
Consumption is back to standing furnace, it is ensured that safety, lossless.
3. apparatus of the present invention, using safety, the convenient, economic and reliable of maintenance, are in the middle of a kind of advanced roll-casting of magnesium alloy unit
Turn liquid device.
Description of the drawings
Fig. 1 turns liquid system apparatus arrangements schematic diagram for roll-casting of magnesium alloy of the present invention.
Fig. 2 is that the servo in present system device with lower end tapered bore turns liquid pump structural representation.
Fig. 3 is that self adaptation thermal expansion turns liquid pipe structural representation in present system device.
Fig. 4 is case before combination type in present system device.
Specific embodiment
Refering to shown in Fig. 1, first, open the shielding gas input channel 8 being installed at front case top cover 6 and switch, while opening
Turn the switch of 5 heater 4 and 11 of liquid pipe 2 and front case, the conveyance conduit and front case that are passed through protective gas are preheated to 680 ~ 700
DEG C, lip and Casting Roller be preheated to set objective temperature.Outlet pricker plug device after front case system warm-up terminates, before keeping in case
10 are in air-tight state, under a shielding gas, turn liquid pump 1 by the servo with lower end tapered bore, and refined, ventilation is blown
Liquid magnesium alloy after slag, standing is transported to front case 5 by turning liquid pipe road 2, by described temperature linkage during foregoing invention
Front the temperature inside the box detector 7 in control reads real time temperature, shows that liquid magnesium alloy temperature, for setting after cast temperature, keeps permanent
Temperature；After in current box, Level meter 9 shows that liquid magnesium alloy reaches predetermined liquid level, pricker plug device 10 is opened, magnesium is closed
Golden liquid realizes stable casting via the launder channel 12, lip directly affixed with front case inner bag, casting and rolling machine.Stablizing strip casting process
In, the coordinated signals for turning liquid pump 1 and caulked device 10 by servo make front case liquid level keep constant altitude, it is ensured that with even velocity of flow
Enter casting and rolling machine.Mixed gas are adopted in whole melting and conveying and liquid magnesium alloy strip casting process（SF6+ N2）Carry out technique
The gas shield of environment, flow system flow control must be with casting unit speeds match.
Claims (5)
1. a kind of novel magnesium alloy casting turns liquid system and device, including：It is swollen that the servo of lower end tapered bore turns liquid pump, self adaptation heat
Swollen turn case and multi-functional top cover, front case liquid level and system temperature accuracy-control system before liquid pipe, combination type.
2. liquid pump is turned according to the servo of lower end tapered bore described in claim 1, it is characterised in that：Servo turns liquid pump charging hole
Bottom of chamber portion is designed as 160 ° of tapered bores.
3. liquid pipe is turned according to self adaptation thermal expansion described in claim 1, it is characterised in that：Turning in the middle part of liquid pipe, to install a ripple additional
Stricture of vagina compensator, eliminates the thermal expansion amount in whole system.
4. according to case before combination type described in claim 1 and multi-functional top cover, it is characterised in that：Front case is by inner bag and shell two
Part constitutes, inner bag with turn liquid pipe and feed tip is affixed for overall and inner surface there is SiC anti-oxidation and antisepsis coatings, shell to be
Two halves formula, material are high temperature resistant stainless steel；Feed tip is circle with inner bag fixed connecting end, is square with lip connection end；Inner bag
Heater and heat-insulation layer is furnished with and shell between；The multi-functional top cover is made up of high temperature resistant stainless steel and heat-insulation layer, is installed
There are shielding gas intake valve, liquid level detection device, temperature-detecting device, electronic caulked device.
5. according to case liquid level and system temperature accuracy-control system before described in claim 1, it is characterised in that：Servo is taken to turn
Liquid pump and the electronic caulked device being arranged in front case and the Level meter coordinated signals being installed on front case top cover, realize stream
The precise control of amount, makes the liquid surface height controlling precision ± 1mm in front case；Meanwhile, by standing furnace, turn liquid pipe, front case and heating
Assembly temperature linkage detection, closed loop control, make magnesium liquid be delivered to front case by standing furnace, and the change of magnesium liquid temp is less than 10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611073074.3A CN106493340B (en) | 2016-11-29 | 2016-11-29 | A kind of roll-casting of magnesium alloy turns liquid system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611073074.3A CN106493340B (en) | 2016-11-29 | 2016-11-29 | A kind of roll-casting of magnesium alloy turns liquid system and device |
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| Publication Number | Publication Date |
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| CN106493340A true CN106493340A (en) | 2017-03-15 |
| CN106493340B CN106493340B (en) | 2018-10-26 |
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| CN201611073074.3A Active CN106493340B (en) | 2016-11-29 | 2016-11-29 | A kind of roll-casting of magnesium alloy turns liquid system and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984781A (en) * | 2017-05-03 | 2017-07-28 | 太原科技大学 | A kind of new roll-casting of magnesium alloy machine |
| CN107116189A (en) * | 2017-06-26 | 2017-09-01 | 太原科技大学 | A kind of roll-casting of magnesium alloy liquid-supplying system and its aluminium alloy liquid level controlling method |
| CN110394441A (en) * | 2019-06-26 | 2019-11-01 | 洛阳铜加工集团有限责任公司 | Case flow control device before a kind of bar gate type roll-casting of magnesium alloy machine |
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| CN1456404A (en) * | 2003-01-29 | 2003-11-19 | 李华伦 | Magnesium alloy twin-roll continuous casting system for manufacturing magnesium alloy plate |
| CN1457943A (en) * | 2003-03-15 | 2003-11-26 | 边仁杰 | Molten steel negative pressure transport casting blank method and device |
| US20050236135A1 (en) * | 2002-08-29 | 2005-10-27 | Commonwealth Scientific And Industrial Research Organisation | Twin roll casting of magnesium and magnesium alloys |
| CN101612651A (en) * | 2009-07-10 | 2009-12-30 | 苏州有色金属研究院有限公司 | Front box device for roll-casting of magnesium alloy |
| CN101693933A (en) * | 2009-10-22 | 2010-04-14 | 中冶赛迪工程技术股份有限公司 | Ironmaking technical furnace top charging technology |
| CN103162055A (en) * | 2013-03-26 | 2013-06-19 | 江苏亚星波纹管有限公司 | Novel multifunctional ripple compensator |
| CN105855521A (en) * | 2014-05-09 | 2016-08-17 | 重庆硕龙科技有限公司 | Method and device for gravity casting of light alloy |
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2016
- 2016-11-29 CN CN201611073074.3A patent/CN106493340B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050236135A1 (en) * | 2002-08-29 | 2005-10-27 | Commonwealth Scientific And Industrial Research Organisation | Twin roll casting of magnesium and magnesium alloys |
| CN1456404A (en) * | 2003-01-29 | 2003-11-19 | 李华伦 | Magnesium alloy twin-roll continuous casting system for manufacturing magnesium alloy plate |
| CN1457943A (en) * | 2003-03-15 | 2003-11-26 | 边仁杰 | Molten steel negative pressure transport casting blank method and device |
| CN101612651A (en) * | 2009-07-10 | 2009-12-30 | 苏州有色金属研究院有限公司 | Front box device for roll-casting of magnesium alloy |
| CN101693933A (en) * | 2009-10-22 | 2010-04-14 | 中冶赛迪工程技术股份有限公司 | Ironmaking technical furnace top charging technology |
| CN103162055A (en) * | 2013-03-26 | 2013-06-19 | 江苏亚星波纹管有限公司 | Novel multifunctional ripple compensator |
| CN105855521A (en) * | 2014-05-09 | 2016-08-17 | 重庆硕龙科技有限公司 | Method and device for gravity casting of light alloy |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984781A (en) * | 2017-05-03 | 2017-07-28 | 太原科技大学 | A kind of new roll-casting of magnesium alloy machine |
| CN107116189A (en) * | 2017-06-26 | 2017-09-01 | 太原科技大学 | A kind of roll-casting of magnesium alloy liquid-supplying system and its aluminium alloy liquid level controlling method |
| CN107116189B (en) * | 2017-06-26 | 2023-03-21 | 太原科技大学 | Magnesium alloy casting-rolling liquid supply system and alloy liquid level control method thereof |
| CN110394441A (en) * | 2019-06-26 | 2019-11-01 | 洛阳铜加工集团有限责任公司 | Case flow control device before a kind of bar gate type roll-casting of magnesium alloy machine |
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| Publication number | Publication date |
|---|---|
| CN106493340B (en) | 2018-10-26 |
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