CN101024243A - Heat type continuous casting method for making large-cube non-crystal alloy and apparatus thereof - Google Patents

Heat type continuous casting method for making large-cube non-crystal alloy and apparatus thereof Download PDF

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Publication number
CN101024243A
CN101024243A CNA200610042590XA CN200610042590A CN101024243A CN 101024243 A CN101024243 A CN 101024243A CN A200610042590X A CNA200610042590X A CN A200610042590XA CN 200610042590 A CN200610042590 A CN 200610042590A CN 101024243 A CN101024243 A CN 101024243A
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China
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vacuum tank
crucible
water conservancy
conservancy diversion
alloy
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CNA200610042590XA
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Chinese (zh)
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刘俊成
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Shandong University of Technology
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Shandong University of Technology
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Priority to CNA200610042590XA priority Critical patent/CN101024243A/en
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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
    • B22D11/14—Plants for continuous casting
    • B22D11/143—Plants for continuous casting for horizontal 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0697—Accessories therefor for casting in a protected atmosphere

Abstract

The invention supplies a heat pattern continuous casting method and device used to make bulk amorphous alloy. The device includes draw gear, amorphous dummy bar, cooling device, casting mould, crucible, pressing block, servomotor, feed mechanism, many heater, vacuum container, diversion container, and standing container. The casting mould, crucible, diversion container, and standing container are set the vacuum container. The two ends of the diversion and standing containers are respectively connected with the crucible and the casting mould. The amorphous dummy bar is passed through the vacuum container and set in the casting mould. The feed mechanism is passed through the vacuum container. And its bottom is connected with the pressing block. The method and device can realize bulk amorphous high efficiency continuous preparation.

Description

The hot-mold continuous cast method and apparatus of preparation bulk amorphous alloys
Affiliated technical field
The invention provides a kind of hot-mold continuous cast method and apparatus for preparing bulk amorphous alloys, belong to metallurgy, material forming and preparing technical field.
Background technology
Compare with common polycrystalline metal material, amorphous alloy (being called glassy metal again) has high strength, high rigidity, high elastic limit, excellent properties such as corrosion-resistant, wear-resistant.Enter twentieth century nineties, people find that in succession some palladiums, zirconium, lanthanum alloy are 10 2Cooling can form glassy metal under the speed of K/ second-time.Adopt common foundry engieering just can obtain the glassy metal block materials, encouraging prospects have been showed in the application of glassy metal.In in the past 10 years, the research of block metal glass has caused numerous scientists' interest in the world, and new achievement in research is not emerged in large numbers absolutely.Developing low cost, being easy to cast the novel alloy that becomes the blocks of large material is target of greatest concern all the time, also is the key that has the final practicability intellectual property of material simultaneously.
1991, Akihisa Inoue seminar of northeastern Japan university adopted 4 millimeters " magnesium-copper-yttrium " ternary alloy three-partalloy glass of copper mold casting forming diameter pole.June nineteen ninety-five, the Korea S scientist prepared the magnesium alloy glass that diameter reaches 14 millimeters (see J.Mater.Res.vol.20,2005, p.1465).The fracture strength of magnesium-base metal glass can reach the 800-900 MPa. and be 2～3 times of common commercial magnesium alloy.Metal research Shenyang material science country (associating) of Chinese Academy of Sciences laboratory development goes out magnesium alloy Mg 54Cu 26.5Ag 8.5Gd 11Copper mould casting obtains the amorphous alloy pole of diameter 25mm, magnesium alloy Mg 54Cu 26.5Ag 8.5Gd 11The glassy metal pole diameter of copper mold casting can reach 25 millimeters, and about 1000 MPas of fracture strength (" Applied Physics wall bulletin ", AIP sponsors, publish October 31 nineteen ninety-five).Zr 55Al 10Ni 5Cu 30The critical non-crystaline amorphous metal size that alloy obtains can reach diameter 30mm (Mater.Trans.JIM, 1996 (37), P181).At present, the amorphous alloy of the relative low price that some glass forming abilities are very strong is seen in report in succession.For example zirconium base, the critical amorphous size of magnesium base alloy can reach more than the 10mm, and critical cooling rate has been reduced to 10～100K/s.
The main method of laboratory bulk amorphous alloy preparation has: die cast, wedge-shaped die casting, negative pressure casting (suction pouring), casting forming, shrend, directional solidification, jet are shaped or the like.
The preparation of disclosed bulk amorphous alloys has in patented technology a few days ago: granted patent CN99250780.4 has introduced vacuum pressure casting bulk amorphous alloys device, utilizes gas pressure that the alloy of fusing is cast at a high speed in the copper film, forms bulk amorphous alloys; Granted patent CN02111709.8 has introduced and has utilized cyclone that the zirconium-base alloy of fusing is separated into fine drop, and the droplets fall process is at first pre-cooled by inert gas, enters in the condenser (casting mold) that is forced to cool off again and finishes the preparation method of solidifying; Patent CN03121418.5 has introduced and has utilized gas pressure to spray and negative pressure of vacuum suction casting measure, the alloy that melts is injected water cooled copper mould at a high speed obtain non-crystal method and apparatus; The method that patent CN03128762.X introduces is, alloy liquid is poured into form in the slit of a water-cooled roll noncrystal.
The common ground of these technology is, alloy liquid is cooled and solidified in casting mold (copper mold, roll etc.), and alloy liquid contacts closely with the casting mold wall.According to classical liquid alloy crystallization theory, it is the process that a nucleus forms, grows up that liquid alloy is solidified as crystal, and the wall of cooling casting mold can promote the formation of nucleus well and grow up, and is unfavorable for that alloy transforms to amorphous.Secondly, be seen in the reported method, except the method that patent CN03121418.5 introduces, the size of non-crystaline amorphous metal is subjected to the limitation of casting mold three-dimensional dimension.
Summary of the invention
The purpose of this invention is to provide a kind of hot-mold continuous cast method and apparatus of high efficiency preparation bulk amorphous alloys, its technical scheme is:
A kind of hot-mold continuous cast method for preparing bulk amorphous alloys is characterized in that: adopt the hot-mold continuous cast technology to prepare bulk amorphous alloys continuously.
For achieving the above object, the hot-mold continuous cast method of described preparation bulk amorphous alloys, its preparation process is followed successively by: a, crucible, water conservancy diversion and leave standstill container and casting mold is installed in the vacuum tank, amorphous dummy bar hermetically passing vacuum tank is inserted casting mold; B, to evacuating atmosphere in vacuum vessel, start electric heating system then, treat that alloy is molten into liquid state in crucible, alloy liquid is introduced into water conservancy diversion and leaves standstill container under the briquetting extruding and is incubated and leaves standstill processing, promptly be full of casting mold, start cooling device, liquid alloy is solidified as amorphous structure; C, the non-crystalline style draw-gear of startup, liquid alloy continuously becomes non-crystalline style.
For achieving the above object; the hot-mold continuous cast method of described preparation bulk amorphous alloys; in step b; if alloy contains the component of high-vapor-pressure; before alloy melting, vacuum tank is charged into high-purity inert protective gas; its pressure is slightly larger than the atmospheric pressure of outside air, with the volatilization of the alloy compositions of drawing up.
For achieving the above object, the hot-mold continuous cast method of described preparation bulk amorphous alloys if keep vacuum state and cooling device to be arranged in the vacuum tank in the vacuum tank always, then adopts oils or the lower cooling medium of other vapour pressure.
The device that is adopted for achieving the above object, comprise draw-gear, the amorphous dummy bar, cooling device, casting mold, crucible, briquetting, servomotor, feed mechanism and some heaters, it is characterized in that: set up vacuum tank and water conservancy diversion and leave standstill container, casting mold wherein, crucible and water conservancy diversion and leave standstill container and all be arranged in the vacuum tank, and each have independently heater, water conservancy diversion and the two ends of leaving standstill container be tightly connected respectively crucible and casting mold, amorphous dummy bar hermetically passing vacuum tank is inserted casting mold, by the feed mechanism hermetically passing vacuum tank of driven by servomotor, its bottom is connected with briquetting.
For achieving the above object, the continuous preparation device of described bulk amorphous alloys, water conservancy diversion and the cross section that leaves standstill container are 2～100 times of casting mold cross section.
For achieving the above object, the continuous preparation device of described bulk amorphous alloys, crucible, water conservancy diversion and leave standstill container and casting mold all adopts high purity graphite to make.
For achieving the above object, the continuous preparation device of described bulk amorphous alloys is provided with a plurality of casting molds in the vacuum tank, respectively with water conservancy diversion with leave standstill seal of vessel and be connected; Perhaps be provided with a plurality of water conservancy diversion in the vacuum tank and leave standstill container, be tightly connected with crucible respectively.
Compare with existing non-crystaline amorphous metal technology of preparing, characteristics of the present invention are: liquid alloy does not solidify in casting mold, help alloy to noncrystal transformation, the injection chilling action of dependence cooling medium changes into solid-state noncrystal, obtains the bar-shaped noncrystal of lengthwise dimension very big (in theory can be infinitely great).Compare with traditional pattern of fever continuous casting technology, water conservancy diversion and the setting of leaving standstill container, the introducing of computer controlled automatic device has improved the success rate and the quantity-produced ability of dummy ingot operation.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
The specific embodiment
1, valve 2, draw-gear 3, amorphous dummy bar 4, vacuum tank 5, cooling device 6, casting mold 7, heater 8, water conservancy diversion and leave standstill container 9, alloy liquid 10, computer controlled automatic device 11, crucible 12, briquetting 13, feed mechanism 14, servomotor
In the embodiment shown in fig. 1: alloy adopts magnesium base alloy Mg 65Cu 20Zn 5Y 10Casting mold 6, crucible 11 and water conservancy diversion and leave standstill container 8 and all adopt high purity graphite to make, together be arranged in the vacuum tank 4 with cooling device 5, and the independently heater 7 that is subjected to 10 controls of computer controlled automatic device is arranged respectively, water conservancy diversion and the two ends of leaving standstill container 8 be tightly connected respectively crucible 11 and casting mold 6, wherein water conservancy diversion and the cross section that leaves standstill container 8 are 10 times of casting mold 6 cross sections, amorphous dummy bar 3 hermetically passing vacuum tanks 4 are inserted casting mold 6, feed mechanism 13 hermetically passing vacuum tanks 4 by servomotor 14 drivings, its bottom is connected with briquetting 12, and the side ancient piece of jade, round, flat and with a hole in its centre of vacuum tank 4 is provided with the valve 1 that connects vacuum extractor or aerating device.
Adopt the hot-mold continuous cast technology to prepare bulk amorphous alloys continuously, its preparation process is followed successively by:
(1) amorphous dummy bar 3 hermetically passing vacuum tanks 4 is inserted casting mold 6;
(2) valve 1 is connected vacuum extractor, by vacuum extractor vacuum tank 4 is vacuumized, machine automaton 10 starts separately electric heater 7 respectively to crucible 11, water conservancy diversion and leave standstill container 8 and casting mold 6 heats as calculated then, valve 1 is connected aerating device before alloy melting, charge into high-purity inert protective gas through 1 pair of vacuum tank 4 of valve, its pressure is slightly larger than the atmospheric pressure of outside air, with the volatilization of the alloy compositions of drawing up; Treat that alloy is molten into liquid state in crucible 11, machine automaton 10 starts servomotor 14 as calculated, control briquetting 12 is pressed in the alloy liquid 9 of crucible 11, alloy liquid 9 is introduced into water conservancy diversion and leaves standstill container 8 under briquetting 12 extruding and is incubated and leaves standstill processing, promptly be full of casting mold 6, machine automaton 10 starts cooling device 5 as calculated, is solidified as amorphous structure under the liquid alloy Quench condition;
(3) start non-crystalline style draw-gear 2, liquid alloy continuously becomes non-crystalline style.
Adopt the present invention, can prepare the complete amorphous pole of diameter 5mm, length 10000mm.
In this preparation method,, then adopt oils or the lower cooling medium of other vapour pressure if keep vacuum state and cooling device 5 to be arranged in the vacuum tank 4 in the vacuum tank 4 always.If keep vacuum state and cooling device to be arranged in the vacuum tank in the vacuum tank always, then adopt oils or the lower cooling medium of other vapour pressure.
For enhancing productivity, be provided with a plurality of casting molds 6 in the vacuum tank 4, respectively with water conservancy diversion with leave standstill container 8 and be tightly connected; Perhaps be provided with a plurality of water conservancy diversion in the vacuum tank 4 and leave standstill container 8, be tightly connected with crucible 11 respectively; Computer controlled automatic device 10 can be controlled and coordinate draw-gear 3, servomotor 14, cooling device 5 and a plurality of heater 7, in order to improve the success rate of dummy ingot operation, guarantees to produce continuously.

Claims (9)

1, a kind of hot-mold continuous cast method for preparing bulk amorphous alloys is characterized in that: adopt the hot-mold continuous cast technology to prepare bulk amorphous alloys continuously.
2, the hot-mold continuous cast method of preparation bulk amorphous alloys as claimed in claim 1, it is characterized in that preparation process is followed successively by: a, crucible (11), water conservancy diversion and leave standstill container (8 and casting mold (6) be installed in the vacuum tank (4), amorphous dummy bar (3) hermetically passing vacuum tank (4) is inserted casting mold (6); B, vacuum tank (4) is vacuumized, start electric heating system then, treat that alloy is molten into liquid state in crucible (11), alloy liquid enters water conservancy diversion and leaves standstill container (8) under briquetting (12) extruding and is incubated and leaves standstill processing, promptly be full of casting mold (6), start cooling device (5), liquid alloy is solidified as amorphous structure; C, startup non-crystalline style draw-gear (2), liquid alloy continuously becomes non-crystalline style.
3, the hot-mold continuous cast method of preparation bulk amorphous alloys as claimed in claim 2; it is characterized in that: in step b; if alloy contains the component of high-vapor-pressure; before alloy melting vacuum tank (4) is charged into high-purity inert protective gas, its pressure is slightly larger than the atmospheric pressure of outside air.
4, the hot-mold continuous cast method of preparation bulk amorphous alloys as claimed in claim 2, it is characterized in that:, then adopt oils or the lower cooling medium of other vapour pressure if keep vacuum state and cooling device (5) to be arranged in the vacuum tank (4) in the vacuum tank (4) always.
5, a kind of device of realizing preparing according to claim 1 the hot-mold continuous cast method of bulk amorphous alloys, comprise draw-gear (2), amorphous dummy bar (3), cooling device (5), casting mold (6), crucible (11), briquetting (12), servomotor (14), feed mechanism (13) and some heaters (7), it is characterized in that: set up vacuum tank (4) and water conservancy diversion and leave standstill container (8), casting mold (6) wherein, crucible (11) and water conservancy diversion and leave standstill container (8) and all be arranged in the vacuum tank (4), and each have independently heater (7), water conservancy diversion and the two ends of leaving standstill container (8) be tightly connected respectively crucible (11) and casting mold (6), amorphous dummy bar (3) hermetically passing vacuum tank (4) is inserted casting mold (6), by feed mechanism (13) the hermetically passing vacuum tank (4) that servomotor (14) drives, its bottom is connected with briquetting (12).
6, the continuous preparation device of bulk amorphous alloys as claimed in claim 4 is characterized in that: water conservancy diversion and the cross section that leaves standstill container (8) are 2～100 times of casting mold (6) cross section.
7, the continuous preparation device of bulk amorphous alloys as claimed in claim 4 is characterized in that: crucible (11), water conservancy diversion and leave standstill container (8) and casting mold (6) all adopts high purity graphite to make.
8, the continuous preparation device of bulk amorphous alloys as claimed in claim 4 is characterized in that: be provided with a plurality of casting molds (6) in the vacuum tank (4), respectively with water conservancy diversion with leave standstill container (8) and be tightly connected.
9, the continuous preparation device of bulk amorphous alloys as claimed in claim 4 is characterized in that: be provided with a plurality of water conservancy diversion in the vacuum tank (4) and leave standstill container (8), be tightly connected with crucible (11) respectively.
CNA200610042590XA 2006-02-24 2006-02-24 Heat type continuous casting method for making large-cube non-crystal alloy and apparatus thereof Pending CN101024243A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102159345A (en) * 2008-09-10 2011-08-17 Rti国际金属公司 Method and apparatus for sealing ingot at initial startup
CN102641999A (en) * 2012-04-24 2012-08-22 王东 Device and method for continuously preparing bulk amorphous alloy ingots
CN103231032A (en) * 2013-05-28 2013-08-07 辽宁恒大重工有限公司 Vacuum continuous casting device and method for alloy billets
CN101708538B (en) * 2009-11-16 2014-01-15 王仁辉 High-performance magnesium alloy parison continuous casting production line
CN106270427A (en) * 2016-11-01 2017-01-04 东莞市逸昊金属材料科技有限公司 A kind of amorphous master alloy ingot continuous casting system and using method thereof
CN107496050A (en) * 2017-07-10 2017-12-22 许昌锦荣食品有限公司 A kind of non-crystaline amorphous metal intravascular stent manufacturing equipment
CN109093088A (en) * 2018-10-12 2018-12-28 兰州理工大学 A kind of monocrystalline copper sheet preparation facilities and preparation method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102159345A (en) * 2008-09-10 2011-08-17 Rti国际金属公司 Method and apparatus for sealing ingot at initial startup
CN102159345B (en) * 2008-09-10 2013-08-21 Rti国际金属公司 Method and apparatus for sealing ingot at initial startup
CN101708538B (en) * 2009-11-16 2014-01-15 王仁辉 High-performance magnesium alloy parison continuous casting production line
CN102641999A (en) * 2012-04-24 2012-08-22 王东 Device and method for continuously preparing bulk amorphous alloy ingots
CN103231032A (en) * 2013-05-28 2013-08-07 辽宁恒大重工有限公司 Vacuum continuous casting device and method for alloy billets
CN106270427A (en) * 2016-11-01 2017-01-04 东莞市逸昊金属材料科技有限公司 A kind of amorphous master alloy ingot continuous casting system and using method thereof
WO2018082240A1 (en) * 2016-11-01 2018-05-11 东莞市逸昊金属材料科技有限公司 Continuous casting system for amorphous master alloy ingot and usage method therefor
CN106270427B (en) * 2016-11-01 2018-06-29 东莞市逸昊金属材料科技有限公司 A kind of amorphous master alloy ingot continuous casting system and its application method
CN107496050A (en) * 2017-07-10 2017-12-22 许昌锦荣食品有限公司 A kind of non-crystaline amorphous metal intravascular stent manufacturing equipment
CN107496050B (en) * 2017-07-10 2019-08-20 孟庆燕 A kind of amorphous alloy intravascular stent manufacturing equipment
CN109093088A (en) * 2018-10-12 2018-12-28 兰州理工大学 A kind of monocrystalline copper sheet preparation facilities and preparation method

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Open date: 20070829