CN104841898A - Method and device capable of producing multiple pieces of magnesium alloy cast sticks simultaneously - Google Patents
Method and device capable of producing multiple pieces of magnesium alloy cast sticks simultaneously Download PDFInfo
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- CN104841898A CN104841898A CN201510236630.3A CN201510236630A CN104841898A CN 104841898 A CN104841898 A CN 104841898A CN 201510236630 A CN201510236630 A CN 201510236630A CN 104841898 A CN104841898 A CN 104841898A
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- magnesium alloy
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/147—Multi-strand plants
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- Engineering & Computer Science (AREA)
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method and a device capable of producing multiple pieces of magnesium alloy cast sticks simultaneously. The device comprises at least two crystallizers, a steel frame and a diversion channel. The crystallizers and the diversion channel are all installed on the steel frame. The diversion channel comprises a flow passage and a liquid accumulation pool. The diversion channel is communicated with each of the crystallizers through the flow passage. The method comprises the following steps: melting the magnesium alloy; lifting up each dummy bar head into the crystallizers, leading cold water in the crystallizers; preheating a fixture on the device; opening a protecting gas device, butt-jointing a diversion pipe of a melting furnace with the diversion channel, discharging the molten magnesium alloy; supplying the molten magnesium alloy simultaneously and stably into four crystallizers; finally, starting casting. The method and the device can product multiple pieces of magnesium sticks simultaneously, thereby increasing the production efficiency. The bottom of the diversion channel is provided with the liquid accumulation pool, thereby achieving an enclosed transmission of the molten magnesium alloy from the melting furnace to the diversion channel; and the diversion channel is provided with the protecting gas device for protecting the molten magnesium comprehensively and continuously during the casting process.
Description
Technical field
The invention belongs to magnesium alloy cast technical field, particularly a kind of device and method simultaneously producing many magnesium alloy cast rod in semi-continuous casting field.
Background technology
Vertical semi-continuous casting is the main mode of production preparing the metal material ingot blanks such as magnesium at present.Compared with traditional die casting mode, semi-continuous casting improves molten metal crystallization rate, improves the uniformity of ingot casting crystallite dimension, decreases composition range segregation, improves ingot casting mechanical property, is convenient to achieve mechanized operation, improves production efficiency.
But, adopt vertical semi-continuous casting technology also to there is corresponding problem.First, due to the oxidizable burning of magnesium alloy liquation, for the ease of control operation, often can only take the mode of single casting to produce, thus cause production efficiency low; In addition, conventional refractory material mostly can with magnesium alloy generation chemical reaction, thus cause ingot casting surface dross, draw trace, even enter inside ingot, reduce ingot metallurgy quality.
Therefore, for the deficiencies in the prior art, provide a kind of device and method simultaneously can producing many magnesium alloy cast rod, for the metallurgical quality and the production efficiency that improve magnesium alloy cast rod, seem highly significant.
Summary of the invention
Object of the present invention is exactly the problems referred to above existed to solve prior art, thus provides a kind of device and method simultaneously can producing many magnesium alloy cast rod, is intended to the metallurgical quality and the production efficiency that improve magnesium alloy cast rod.
Technical solution of the present invention is: the device simultaneously can producing many magnesium alloy cast rod, comprise at least two crystallizers, steelframe and splitter box, described crystallizer is all installed in steelframe, described splitter box is installed on steelframe, described splitter box comprises at least two runners and liquid storage pool, described liquid storage pool is positioned at the centre position of each runner, and the bottom of liquid storage pool is lower than the lower surface of each runner, and described splitter box is connected by runner with each crystallizer.
Further, the above-mentioned device simultaneously can producing many magnesium alloy cast rod, wherein: be separately provided with a water tank in described steelframe, described crystallizer is all in this water tank, and water tank is provided with one for passing into the cooling water mozzle of cooling.
Further; the above-mentioned device simultaneously can producing many magnesium alloy cast rod; wherein: be separately provided with a protection device of air; this protection device of air comprises air inlet pipe, pipe and isocon; described air inlet pipe is connected with pipe, and described isocon is connected with pipe, is equipped with venthole on the downside of described pipe and isocon; described pipe is positioned at directly over liquid storage pool, and described isocon is positioned at directly over runner.
Further, the above-mentioned device simultaneously can producing many magnesium alloy cast rod, wherein: the opening part of each runner described is equipped with flow control device, this flow control device is connected with drive link.
Further, the above-mentioned device simultaneously can producing many magnesium alloy cast rod, wherein: each crystallizer top described is all provided with a hot top, and described hot top exceeds steelframe platform upper surface.
Further, the above-mentioned device simultaneously can producing many magnesium alloy cast rod, wherein: described splitter box is positioned at the middle of each crystallizer, and each flow channel length of splitter box is equal.
Further, the above-mentioned device simultaneously can producing many magnesium alloy cast rod, wherein: described crystallizer is provided with four, correspondingly, the quantity of the runner on splitter box is also four with the isocon quantity on protection device of air.
Again further, present invention also offers a kind of method simultaneously can producing many magnesium alloy cast rod, comprise the following steps: (1) first carries out melting with smelting furnace to magnesium alloy, the smelting temperature of magnesium alloy is 720 ~ 750 DEG C, then refining treatment is carried out, refining 5 ~ 15min, leaves standstill 30 ~ 45min afterwards; (2) before standing end, each dummy bar head that rises is in crystallizer, and exceed under crystallizer intercrystalline band until dummy bar head and stop along during 5 ~ 10mm, then in water tank, pass into cooling water, cooling water pressure is set in 0.005 ~ 0.012MPa; (3) carry out preheating to contacting frock with magnesium alloy liquation, preheat temperature is 500 ~ 800 DEG C; (4) open protection device of air, docking then by the mozzle of smelting furnace and liquid storage pool, magnesium alloy liquation of releasing afterwards, magnesium alloy liquation flow in liquid storage pool; (5) after, the liquid level along with magnesium alloy liquation in liquid storage pool rises and arrives each runner, thus makes magnesium alloy liquation by each runner synchronously steadily for flowing in each crystallizer; (6) last, after the magnesium alloy liquation liquid level in splitter box reaches default liquid level, start casting, according to different alloy designations and ingot casting specification, setting casting speed is 100 ~ 200mm/min.
Again further, the above-mentioned method simultaneously can producing many magnesium alloy cast rod, wherein: in above-mentioned steps (4), magnesium alloy liquation relies on self gravitation or air pressure to drive and flow in liquid storage pool.
Again further, the above-mentioned method simultaneously can producing many magnesium alloy cast rod, wherein: in above-mentioned steps (5), the liquid level of described magnesium alloy liquation is controlled by flow control device, by raising or put down the plug of flow control device to drive link force, thus control liquid level, described liquid level controls at 20 ~ 60mm.
The substantive distinguishing features that the present invention gives prominence to and significant technological progress are mainly reflected in: the present invention can produce many magnesium alloy cast rod simultaneously, substantially increases production efficiency; Splitter box adopts steel material to make, and avoids the contact of magnesium alloy liquation and conventional refractory materials, improves the quality of magnesium alloy cast rod; In the present invention, splitter box is provided with a sagging liquid storage pool, achieve the closed transmission of magnesium alloy liquation from smelting furnace to splitter box, and splitter box is provided with protection device of air, can carry out the protection that comprehensively continues in casting process to magnesium alloy liquation.
Accompanying drawing explanation
Fig. 1 is the front view simultaneously can producing the device of many magnesium alloy cast rod;
Fig. 2 is the top view simultaneously can producing the device of many magnesium alloy cast rod;
Fig. 3 is splitter box structural representation;
Fig. 4 is protection device of air structural representation.
In figure, the implication of each Reference numeral is: 1-crystallizer, 2-steelframe, 3-protection device of air, 31-air inlet pipe, 32-pipe, 33-isocon, 4-splitter box, 5-runner, 6-liquid storage pool.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, is easier to make technical solution of the present invention understand and grasp.
As shown in Figures 1 and 2, the device of many magnesium alloy cast rod can be produced simultaneously, comprise at least two crystallizers 1, steelframe 2 and splitter box 4.Crystallizer 1 is all installed in steelframe 2.The pairing of each crystallizer 1 has a dummy bar head, and during use, dummy bar head is installed on the bottom of crystallizer 1, can rise to crystallizer 1 inner.The top of each crystallizer 1 is all provided with hot top, and hot top exceeds steelframe platform upper surface.Splitter box 4 is installed on steelframe 2, and between each crystallizer 1.As shown in Figure 3, splitter box 4 adopts steel material to make, and comprise runner 5 and liquid storage pool 6, the quantity of runner 5 is identical with the quantity of crystallizer, and liquid storage pool 6 is positioned at the centre of each runner 5 entrance, and the bottom of liquid storage pool 6 is lower than each runner 5.Splitter box 4 is connected with each crystallizer 1 respectively by runner 5.Separately be provided with a water tank in steelframe 2, each crystallizer 1 is all among water tank, and water tank is provided with a cooling water pipeline, for passing into cooling water.Separately be provided with a protection device of air 3; as shown in Figure 4; this protection device of air 3 comprises air inlet pipe 31, pipe 32 and isocon 33; air inlet pipe 31 is connected with pipe 32; isocon 33 is connected with pipe 32; pipe 32 is installed on directly over liquid storage pool 6; each isocon 33 is installed on directly over each runner 5; the downside of pipe 32 and isocon 33 is equipped with venthole; protective gas flows into from air inlet pipe 31; flow out from the venthole of the downside of pipe 32 and isocon 33, thus the magnesium alloy liquation in liquid storage pool 6 and runner 5 is played a protective role.Be provided with flow control device in the porch of each runner 5, flow control device is also connected with drive link, by exerting a force to drive link, thus lifts or puts down the plug of flow control device, thus reach the object controlling liquid level.As shown in Figure 2; described crystallizer 1 has four; correspondingly; the runner 5 of splitter box 4 is also provided with four, and with each crystallizer 1 one_to_one corresponding, splitter box 4 is positioned at the middle of four crystallizers 1; and each runner 5 length of splitter box 4 is equal; meanwhile, the isocon 33 on protection device of air 3 is also provided with four, and each isocon is installed on directly over each runner 5.
It should be noted that; the quantity of crystallizer 1 is four and is only preferred version; according to the actual requirements; the crystallizer of varying number can be set; such as; arrange three or five crystallizers, correspondingly, the quantity of the runner on splitter box is all identical with the quantity of crystallizer with the isocon quantity on protection device of air.
Specific operation process is as follows, first utilizes smelting furnace to carry out the fusing of magnesium alloy, clears up and inspection work during this period to crystallizer, hot top, splitter box, flow control device etc.After magnesium alloy melt temperature reaches 720 ~ 750 DEG C, refining treatment is carried out to magnesium alloy liquation, refining 5 ~ 15min, then leave standstill 30 ~ 45min and be incubated; Before standing end, rising dummy bar head, exceeds under crystallizer 1 intercrystalline band until dummy bar head and stops along during 5 ~ 10mm; Then, in water tank, pass into cooling water by cooling water pipeline, pressure setting is at 0.005 ~ 0.012MPa, and the direct cooler crystallizer of water on the one hand in water tank, another aspect water can be ejected into ingot casting surface through the water channel arranged in crystallizer cools.Preheating is carried out to the mozzle contacted with magnesium alloy liquation, flow control device, splitter box, hot top, preheat temperature 500 ~ 800 DEG C.Before casting, first open protection device of air 3, then docked with hypomere in liquid storage pool 6 by the mozzle of smelting furnace, start magnesium alloy liquation of releasing afterwards, magnesium alloy liquation relies on liquation self gravitation or air pressure to drive and flow in liquid storage pool 6.Then arriving runner 5 along with magnesium alloy liquation liquid level rises, making magnesium alloy liquation synchronous steadily for flowing in each crystallizer 1 by runner 5.Liquid level relies on the lifting of the metal plug of flow control device to control, and liquid level can be controlled in 20 ~ 60mm, and after the magnesium alloy liquation liquid level in liquid-accumulating trough reaches default liquid level, start casting, casting speed is set in 150 ~ 200mm/min.Each parameter need adjust according to ingot surface quality situation in good time above.After magnesium alloy cast rod length reaches preset value, casting terminates.Magnesium liquid in liquid storage pool 6 allows it naturally cool after the casting is completed, recoverable.
By describing above and can finding out, be provided with multiple crystallizer in the present invention, by splitter box, magnesium alloy liquation divided equally to each crystallizer, thus many magnesium alloy cast rod can be produced simultaneously, substantially increase production efficiency; Splitter box all adopts steel material to make, and avoids the contact of magnesium alloy liquation and conventional refractory materials, improves the quality of magnesium alloy cast rod; Splitter box is provided with a sagging liquid storage pool, thus achieves the immersion transmission of magnesium alloy liquation from smelting furnace to splitter box, and splitter box is provided with protection device of air, can carry out comprehensively lasting protection in casting process to magnesium alloy liquation.
Certainly, be more than representative instance of the present invention, in addition, the present invention can also have other multiple detailed description of the invention, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the scope of protection of present invention.
Claims (10)
1. can produce the device of many magnesium alloy cast rod simultaneously, it is characterized in that: comprise at least two crystallizers, steelframe and splitter box, described crystallizer is all installed in steelframe, described splitter box is installed on steelframe, described splitter box comprises at least two runners and liquid storage pool, described liquid storage pool is positioned at the centre position of each runner, and the bottom of liquid storage pool is lower than the lower surface of each runner, and described splitter box is connected by runner with each crystallizer.
2. the device simultaneously can producing many magnesium alloy cast rod according to claim 1, it is characterized in that: be separately provided with a water tank in described steelframe, described crystallizer is all in this water tank, and water tank is provided with one for passing into the cooling water mozzle of cooling.
3. the device simultaneously can producing many magnesium alloy cast rod according to claim 1; it is characterized in that: be separately provided with a protection device of air; this protection device of air comprises air inlet pipe, pipe and isocon; described air inlet pipe is connected with pipe; described isocon is connected with pipe; be equipped with venthole on the downside of described pipe and isocon, described pipe is positioned at directly over liquid storage pool, and described isocon is positioned at directly over runner.
4. the device simultaneously can producing many magnesium alloy cast rod according to claim 1, it is characterized in that: the opening part of each runner described is equipped with flow control device, this flow control device is connected with drive link.
5. the device simultaneously can producing many magnesium alloy cast rod according to claim 1, is characterized in that: each crystalliser feet described is all provided with a hot top, and this hot top exceeds steelframe platform upper surface.
6. the device simultaneously can producing many magnesium alloy cast rod according to claim 1, is characterized in that: described splitter box is positioned at the middle of each crystallizer, and each flow channel length of splitter box is equal.
7. the device simultaneously can producing many magnesium alloy cast rod according to claim 1, is characterized in that: described crystallizer is provided with four, and correspondingly, the quantity of the runner on splitter box is also four with the isocon quantity on protection device of air.
8. can produce the method for many magnesium alloy cast rod simultaneously, comprise the following steps: it is characterized in that:
(1) first carry out melting with smelting furnace to magnesium alloy, the smelting temperature of magnesium alloy is 720 ~ 750 DEG C, then carries out refining treatment, refining 5 ~ 15min, leaves standstill 30 ~ 45min afterwards;
(2) before standing end, each dummy bar head that rises is in crystallizer, and exceed under crystallizer intercrystalline band until dummy bar head and stop along during 5 ~ 10mm, then in water tank, pass into cooling water, cooling water pressure is set in 0.005 ~ 0.012MPa;
(3) carry out preheating to contacting frock with magnesium alloy liquation, preheat temperature is 500 ~ 800 DEG C;
(4) open protection device of air, docking then by the mozzle of smelting furnace and liquid storage pool, magnesium alloy liquation of releasing afterwards, magnesium alloy liquation flow in liquid storage pool;
(5) after, the liquid level along with magnesium alloy liquation in liquid storage pool rises and arrives each runner, thus makes magnesium alloy liquation by each runner synchronously steadily for flowing in each crystallizer;
(6) last, after the magnesium alloy liquation liquid level in splitter box reaches default liquid level, start casting, according to different alloy designations and ingot casting specification, setting casting speed is 100 ~ 200mm/min.
9. the method simultaneously can producing many magnesium alloy cast rod according to claim 8, is characterized in that: in above-mentioned steps (4), and magnesium alloy liquation relies on self gravitation or air pressure to drive and flow in liquid storage pool.
10. the method simultaneously can producing many magnesium alloy cast rod according to claim 8, it is characterized in that: in above-mentioned steps (5), the liquid level of described magnesium alloy liquation is controlled by flow control device, by raising or put down the plug of flow control device to drive link force, thus control liquid level, described liquid level controls at 20 ~ 60mm.
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| CN201510236630.3A CN104841898A (en) | 2015-05-11 | 2015-05-11 | Method and device capable of producing multiple pieces of magnesium alloy cast sticks simultaneously |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105969996A (en) * | 2016-04-11 | 2016-09-28 | 宜昌宏箭铝业有限责任公司 | Magnesium alloy melting refining and casting device and method |
| CN107716886A (en) * | 2017-10-31 | 2018-02-23 | 江苏常铝铝业股份有限公司 | For producing the crystallizer casting buoy of aluminium alloy cast ingot |
| CN110039019A (en) * | 2019-04-18 | 2019-07-23 | 河南科技大学 | A kind of multi-channel parallel casting-rolling method, casting system and casting melt feeding device |
| CN112427612A (en) * | 2020-09-28 | 2021-03-02 | 广东伟业铝厂集团有限公司 | Method for casting small-diameter aluminum bar |
| CN114535558A (en) * | 2022-03-09 | 2022-05-27 | 河南省西交轻质合金新材料研究院有限公司 | Control device and method for liquid flow during magnesium alloy semi-continuous casting starting |
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| CN112427612A (en) * | 2020-09-28 | 2021-03-02 | 广东伟业铝厂集团有限公司 | Method for casting small-diameter aluminum bar |
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