CN108788034A - The preparation method and device of fine aluminium crystallite and non-crystalline material - Google Patents
The preparation method and device of fine aluminium crystallite and non-crystalline material Download PDFInfo
- Publication number
- CN108788034A CN108788034A CN201710421416.4A CN201710421416A CN108788034A CN 108788034 A CN108788034 A CN 108788034A CN 201710421416 A CN201710421416 A CN 201710421416A CN 108788034 A CN108788034 A CN 108788034A
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- CN
- China
- Prior art keywords
- fine aluminium
- nozzle
- roller
- method described
- rotating roller
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Classifications
-
- 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
- B22D11/064—Accessories therefor for supplying molten metal
- B22D11/0642—Nozzles
Abstract
The preparation method and device of a kind of fine aluminium crystallite and non-crystalline material, including：With lost pressure cooling mechanism, fine aluminium heating mechanism is located above lost pressure cooling mechanism and is attached thereto by nozzle sets fine aluminium heating mechanism；The lost pressure cooling mechanism includes：Vacuum chamber with air admission hole and gas vent and the concatenated rotation roller group for being set to internal vacuum chamber, wherein：The position of each copper roller in rotation roller group corresponds in the vertical direction with nozzle sets, and cooling water is passed through inside copper roller and carries out continuous coo1ing, and drives copper roller to be rotated by motor.The present invention can be carried out continuously to realize the quick preparation of fine aluminium crystallite and non-crystalline material.
Description
Technical field
The present invention relates to a kind of technology of field of metallurgy, the preparation side of specifically a kind of fine aluminium crystallite and non-crystalline material
Method and device.
Background technology
The preparation of fine aluminium micro crystal material and non-crystalline material needs prodigious cooling velocity, usually may be used and gets rid of band legal system
It is standby, but current existing band method of getting rid of is extremely inefficient, cannot meet the needs of large-scale production and application.Restriction is got rid of band method and is produced
The main reason for efficiency, is to be difficult to control flow, speed and the temperature of the aluminum melt for spraying to chill roll.
Invention content
The present invention is excessively complicated for prior art chemical reaction process and preparation efficiency is relatively low, the impurity in preparation process
It can not effectively control, the defects of obtained non-crystalline material interior solid is poor etc., propose a kind of fine aluminium crystallite and amorphous material
The preparation method and device of material propose a kind of accurate flow control method of new draught head, realize spray using band method basic principle is got rid of
Penetrate aluminum melt flow, speed and temperature synchronize accurately control, can be by the preparation efficiency of aluminium amorphous and micro crystal material significantly
It improves.
The present invention is achieved by the following technical solutions：
The present invention relates to a kind of fine aluminium crystallite, amorphous is adjustable preparation facilities, including：Fine aluminium heating mechanism is with lost pressure cooling machine
Structure, wherein：Fine aluminium heating mechanism is located above lost pressure cooling mechanism and is attached thereto by nozzle sets.
The fine aluminium heating mechanism includes：Crucible and the filter device being sequentially connected therewith and insulation cover heater.
The nozzle sets are 3-5 groups, and the nozzle slot in every group of nozzle is less than 2mm.
The arrival end of the nozzle sets is equipped with the nozzle flapper for controlling multiple nozzles while opening and closing.
The outlet end of the nozzle sets, which is equipped with, is used for pre-warmed nozzle heater.
The lost pressure cooling mechanism includes：Vacuum chamber with air admission hole and gas vent and it is set to internal vacuum chamber
Concatenated rotation roller group, wherein：It is one a pair of in the vertical direction to rotate position and the nozzle sets of each copper roller in roller group
It answers, cooling water is passed through inside copper roller and carries out continuous coo1ing, and drives copper roller to be rotated by motor.
The present invention relates to the preparations of a kind of fine aluminium crystallite and non-crystalline material, and it is vertical to be passed through by the fine aluminium melt after heating
Nozzle sprays to the rotating roller under subnormal ambient so that moment condensation occurs when being contacted with rotation roller surface for fine aluminium melt, passes through tune
Whole vacuum magnitude, the rotating speed of rotating roller and/or the distance between vertical nozzle and rotating roller realization adjustably prepare crystallite or
Non crystalline structure.
The fine aluminium melt refers to：Heating fusing fine aluminium block, obtains until completely melted in crucible.
Temperature of aluminum liquid is heated to 750 DEG C and keeps the temperature 1 hour by the heating.
The fine aluminium melt is handled preferably through filter, and filtered molten aluminum stops 1 hour in keeping the temperature chute and will be warm
Degree is adjusted to the fusing point of aluminium or more.
The negative pressure refers to：Less than 1 normal atmosphere (An)；The speed of molten aluminum injection can be controlled by control pressure difference
And flow.
The negative pressure is preferably first to be vacuumized in vacuum chamber, is re-filled with appropriate argon gas, keeps the indoor air pressure of vacuum small
In 1 normal atmosphere (An).
The preferably preheated processing of the vertical nozzle, preheating temperature are higher than the fusing point of aluminium.
Rotating speed n >=200 turn/min of the rotating roller；Cooling velocity acquisition crystallite can be reduced by reducing rotating roller rotating speed
Material.
Preferably its inside is the steel structure of hollow out to the rotating roller and inside is connected with cooling water.
The rotating roller and jet expansion distance L≤50cm.
Description of the drawings
Fig. 1 is present device schematic diagram；
Fig. 2 is embodiment effect diagram；
In figure：1 crucible, 2 filter devices, 3 heat preservation chutes, 4 insulation covers, 5 insulation cover heaters, 6 nozzles, 7 nozzle flappers,
8 nozzle heaters, 9 vacuum chambers, 10 series connection copper roller groups, 11 motors, 12 air admission holes, 13 gas vents, 14 vacuum pumps.
Specific implementation mode
Embodiment 1
As shown in Figure 1, the preparation facilities for the fine aluminium crystallite and non-crystalline material that the present embodiment is related to includes：Crucible 1, filtering dress
Set 2, heat preservation chute 3, insulation cover 4, insulation cover heater 5, nozzle 6, nozzle flapper 7, nozzle heater 8, vacuum chamber 9, series connection
Copper roller group 10, motor 11, air admission hole 12, gas vent 13, vacuum pump 14.
The present embodiment uses above-mentioned apparatus, and the fine aluminium melt of fusing is stopped 1 after filtering and entering in heat preservation chute first
Hour, and temperature is adjusted to 710 DEG C.By vacuum chamber, it is filled with appropriate argon gas, it is 0.2 big to make the indoor air pressure of vacuum
Air pressure, and nozzle is preheated, it is preheated to 720 DEG C of temperature；Motor power is connected, copper roller is rotated, and is passed through in copper roller cold
But water；Nozzle flapper is removed, the molten aluminum kept the temperature in chute sprays under the action of draught head from nozzle, by 120mm and turns
The contact of copper roller surface and moment that speed is 2600 turns/min occur condensation and form micro crystal material.
As shown in Fig. 2, for the micro crystal material schematic diagram that the present embodiment is prepared, it gets rid of the average thickness of band as can be seen
It it is 35 μm, average grain size is 8 μm.
Embodiment 2
Same as Example 1, the fine aluminium melt of fusing after filtering and entering in heat preservation chute, it is small to be stopped 1 by the present embodiment
When, and temperature is adjusted to 680 DEG C.By vacuum chamber, it is filled with appropriate argon gas, it is 0.6 air to make the indoor air pressure of vacuum
Pressure, and nozzle is preheated, it is preheated to 700 DEG C of temperature；Motor power is connected, rotates copper roller, and cooling is passed through in copper roller
Water；Nozzle flapper is removed, the molten aluminum kept the temperature in chute sprays under the action of draught head from nozzle, by 110mm and rotating speed
Non-crystalline material is formed for the contact of copper roller surface and moment generation condensation of 3300 turns/min.The average thickness for getting rid of band is 25 μm.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (12)
1. a kind of fine aluminium crystallite, amorphous is adjustable preparation facilities, which is characterized in that including：Fine aluminium heating mechanism is with lost pressure cooling machine
Structure, wherein：Fine aluminium heating mechanism is located above lost pressure cooling mechanism and is attached thereto by nozzle sets；The lost pressure cooling mechanism packet
It includes：Vacuum chamber with air admission hole and gas vent and the concatenated rotation roller group for being set to internal vacuum chamber, wherein：Rotating roller
The position of each copper roller in group corresponds in the vertical direction with nozzle sets, and cooling water is passed through inside copper roller and is carried out continuously
It is cooling, and drive copper roller to be rotated by motor.
2. the apparatus according to claim 1, characterized in that the fine aluminium heating mechanism includes：Crucible and therewith according to
Secondary connected filter device and insulation cover heater.
3. the apparatus according to claim 1, characterized in that the arrival end of the nozzle sets is equipped with for controlling multiple sprays
The nozzle flapper that mouth is opened and closed simultaneously；The outlet end of nozzle sets, which is equipped with, is used for pre-warmed nozzle heater.
4. the preparation method of a kind of fine aluminium crystallite and non-crystalline material, which is characterized in that by passing through the fine aluminium melt after heating
Vertical nozzle sprays to the rotating roller under subnormal ambient so that moment condensation occurs when being contacted with rotation roller surface for fine aluminium melt, leads to
Cross adjustment vacuum magnitude, rotating roller rotating speed and/or the distance between vertical nozzle and rotating roller realize adjustably prepare it is micro-
Brilliant or non crystalline structure.
5. according to the method described in claim 4, it is characterized in that, temperature of aluminum liquid is heated to 750 DEG C and kept the temperature by the heating
1 hour.
6. according to the method described in claim 4, it is characterized in that, the fine aluminium melt is through filtration treatment, filtered molten aluminum
It is stopped 1 hour in keeping the temperature chute and temperature is adjusted to the fusing point of aluminium or more.
7. according to the method described in claim 4, it is characterized in that, the negative pressure refers to：Less than 1 normal atmosphere (An)；Pass through
Control pressure difference is to control the speed and flow of molten aluminum injection.
8. according to the method described in claim 4, it is characterized in that, the negative pressure be first vacuumized in vacuum chamber, be re-filled with
Appropriate argon gas makes the indoor air pressure of vacuum be less than 1 normal atmosphere (An).
9. according to the method described in claim 4, it is characterized in that, the preheated processing of vertical nozzle, preheating temperature is higher than
The fusing point of aluminium.
10. according to the method described in claim 4, it is characterized in that, rotating speed n >=200 turn/min of the rotating roller；Reduce rotation
Transfer roller rotating speed obtains micro crystal material to reduce cooling velocity.
11. according to the method described in claim 4, it is characterized in that, be steel structure and the inside of hollow out inside the rotating roller
It is connected with cooling water.
12. according to the method described in claim 4, it is characterized in that, the rotating roller and jet expansion distance L≤50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421416.4A CN108788034A (en) | 2017-06-07 | 2017-06-07 | The preparation method and device of fine aluminium crystallite and non-crystalline material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421416.4A CN108788034A (en) | 2017-06-07 | 2017-06-07 | The preparation method and device of fine aluminium crystallite and non-crystalline material |
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| CN108788034A true CN108788034A (en) | 2018-11-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202084A (en) * | 2018-11-16 | 2019-01-15 | 上海交通大学 | Array injecting type large scale congruence axialite aluminium alloy ingots increasing material manufacturing equipment and method |
| CN110125411A (en) * | 2019-06-14 | 2019-08-16 | 上海交通大学 | The preparation facilities and method of melt microcell impact type congruence axialite ingot casting |
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| JPS5791852A (en) * | 1980-12-01 | 1982-06-08 | Hitachi Ltd | Manufacture of chilled and solidified metallic material |
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| CN1062861A (en) * | 1990-12-29 | 1992-07-22 | 上海钢铁研究所 | The prevention of leakage method and system is revolved in the vacuum metal spray |
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| CN1438351A (en) * | 2003-03-11 | 2003-08-27 | 山东大学 | Aluminium-base non-crystal alloy and making method |
| CN101554685A (en) * | 2009-05-15 | 2009-10-14 | 西安理工大学 | High-entropy alloy solder used for welding copper and aluminum and preparation method thereof |
| CN103131968A (en) * | 2013-02-04 | 2013-06-05 | 吉林大学 | Amorphous state nickel base alloy nucleating agent used for inoculation processing casting aluminium alloy and preparation method thereof |
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| JPS5791852A (en) * | 1980-12-01 | 1982-06-08 | Hitachi Ltd | Manufacture of chilled and solidified metallic material |
| JPH01309763A (en) * | 1988-06-08 | 1989-12-14 | Ishikawajima Harima Heavy Ind Co Ltd | Device for cooling block mold in caterpillar type continuous casting machine |
| CN1062861A (en) * | 1990-12-29 | 1992-07-22 | 上海钢铁研究所 | The prevention of leakage method and system is revolved in the vacuum metal spray |
| CN1068056A (en) * | 1992-07-08 | 1993-01-20 | 冶金工业部钢铁研究总院 | Vacuum quick quenching furnace |
| JPH0985395A (en) * | 1995-09-28 | 1997-03-31 | Kawasaki Steel Corp | Production of metallic thin strip |
| JP2002331336A (en) * | 2001-03-05 | 2002-11-19 | Tdk Corp | Alloy manufacturing apparatus and manufacturing method of hydrogen storage alloy |
| CN1438351A (en) * | 2003-03-11 | 2003-08-27 | 山东大学 | Aluminium-base non-crystal alloy and making method |
| CN101554685A (en) * | 2009-05-15 | 2009-10-14 | 西安理工大学 | High-entropy alloy solder used for welding copper and aluminum and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202084A (en) * | 2018-11-16 | 2019-01-15 | 上海交通大学 | Array injecting type large scale congruence axialite aluminium alloy ingots increasing material manufacturing equipment and method |
| CN109202084B (en) * | 2018-11-16 | 2020-09-22 | 昆山晶微新材料研究院有限公司 | Array jet type large-size full-equiaxed crystal aluminum alloy ingot additive manufacturing equipment and method |
| US11524332B2 (en) | 2018-11-16 | 2022-12-13 | Shanghai Jiaotong University | Array-spraying additive manufacturing apparatus and method for manufacturing large-sized equiaxed crystal aluminum alloy ingot |
| CN110125411A (en) * | 2019-06-14 | 2019-08-16 | 上海交通大学 | The preparation facilities and method of melt microcell impact type congruence axialite ingot casting |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |
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