CN117961015B - Antigravity high-strength high-brittleness alloy material preparation device - Google Patents
Antigravity high-strength high-brittleness alloy material preparation device Download PDFInfo
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- CN117961015B CN117961015B CN202410371088.1A CN202410371088A CN117961015B CN 117961015 B CN117961015 B CN 117961015B CN 202410371088 A CN202410371088 A CN 202410371088A CN 117961015 B CN117961015 B CN 117961015B
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- 238000010438 heat treatment Methods 0.000 claims abstract description 27
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- 238000003860 storage Methods 0.000 claims description 33
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- 239000010949 copper Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
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Classifications
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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
- B22D11/06—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
-
- 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
-
- 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/113—Treating the molten metal by vacuum treating
-
- 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/119—Refining the metal by filtering
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/11—Making amorphous alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
- F27B2014/045—Vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a preparation device of an antigravity high-strength high-brittleness alloy material, which belongs to the technical field of metal master alloy smelting and comprises a vacuum system, a pressurizing system, a heating system, a pressure relief system, a refrigerating system and a forming system. The device is particularly suitable for preparing amorphous materials, can greatly improve the purity of products and the types of amorphous samples, and provides a guarantee for standardized amorphous master alloy in industrial production.
Description
Technical Field
The invention belongs to the technical field of metal master alloy smelting, and particularly relates to a device for preparing an antigravity high-strength high-brittleness alloy material.
Background
The amorphous material is a short-range ordered long-range disordered metal material which is formed by heating 3 or more metal elements to a molten state under a vacuum condition, the surface of the molten alloy cannot contain impurities, and then forming is carried out in a very cold mode near the glass transition temperature Tg, and the performance of the amorphous material in all aspects is greatly improved due to the fact that the amorphous material has no crystal grains and crystal boundaries. The amorphous forming capacity is detected through exothermic peaks of a thermal analysis DSC, amorphous alloy smelting equipment commonly used by scientific research units and enterprises at present comprises a vacuum tungsten electrode rod heating furnace and a vacuum suspension induction heating furnace, amorphous alloy smelting equipment for smelting amorphous master alloy is realized by controlling the current and voltage, and the amorphous alloy smelting equipment is similar to the existing smelting furnace in the metal metallurgy industry in which only vacuum is added and molten master alloy is turned into a cooling copper mold for forming. The amorphous alloy smelting equipment has the defects that 1, each equipment can only form one type of product, and can also produce amorphous products, but the utilization rate of the equipment is reduced due to the single product, so that labor is wasted, and the cost of enterprises and scientific research units is increased; 2. the existing amorphous alloy smelting equipment is formed through air pressure difference or melting inversion, so that riser heads are arranged on the surface of the smelted amorphous master alloy, the purity of the master alloy is reduced, scientific researches of scientific researchers and various institutions are affected, and improvement is needed. 3. The amorphous master alloy melting apparatus does not take into account the characteristics (e.g., viscosity) of the amorphous material itself in the process of melting the alloy. 4. Because the smelting process of the prior master alloy is controlled by people and cannot reach the standardization, the components of the amorphous master alloy are segregated in the actual enterprise production, and the forming process of the material is affected to cause problems (such as heating time, heating temperature and material appearance).
Disclosure of Invention
The invention aims to provide a device for preparing a antigravity high-strength high-brittleness alloy material, which can filter, separate and purify impurities in the process of preparing the material, has a multi-machine integrated function, is particularly suitable for preparing an amorphous material, can greatly improve the purity of a product and the type of preparing an amorphous sample, and provides a guarantee for providing standardized amorphous master alloy in industrial production.
The invention provides a device for preparing an antigravity high-strength high-brittleness alloy material, which consists of a vacuum system, a pressurizing system, a heating system, a pressure relief system, a refrigerating system and a forming system.
The invention provides a preparation device of an antigravity high-strength high-brittleness alloy material, wherein a vacuum system consists of a mechanical pump, a vacuum pipeline, a smelting cavity and an electromagnetic valve; the mechanical pump is connected to the smelting cavity through a vacuum pipeline, an electromagnetic valve is arranged on the vacuum pipeline, and the cavity is vacuumized by controlling the opening of the mechanical pump and the opening of the electromagnetic valve.
The invention provides a preparation device of an antigravity high-strength high-brittleness alloy material, wherein a pressurizing system consists of an air storage tank, a pressurizing pipeline, a flowmeter, a pressure gauge, an air charging valve, an air storage chamber and an upward pushing mechanism; the air storage tank is connected with the vacuum pipeline through the pressurizing pipeline, the pressurizing pipeline is connected with the inflating valve, and the air storage tank is opened to fill the protecting gas by controlling the inflating valve; the other end of the air storage tank is connected with an air storage cavity through a pressurizing pipeline, a flowmeter is arranged on the pressurizing pipeline, a pressure gauge is arranged on the air storage cavity, and the upper end of the air storage cavity is provided with an upward pushing mechanism; the air storage tank is opened, the flowmeter is controlled, the pressure gauge is observed to control the pressure difference of the air storage chamber, and the rising speed of the pushing-up mechanism is adjusted by controlling the pressure difference to realize pushing-up.
The invention provides a device for preparing an antigravity high-strength high-brittleness alloy material, wherein a heating system consists of a heating resistance wire, a ceramic tube, a crucible and a pressing mechanism; the heating resistance wires are distributed around the crucible, and the ceramic pipe is used for isolating the pressing mechanism on the crucible; the heating of the crucible is performed by heating the resistance wire.
The invention provides a preparation device of an antigravity high-strength high-brittleness alloy material, wherein a pressure relief system consists of a spherical choke valve, an upper cover and a nozzle; the spherical choke valve is arranged above the resistance wire, the upper cover is connected with the smelting cavity above the spherical choke valve, and the top end of the upper cover is provided with a nozzle; the spherical choke valve is pushed by the pushing mechanism to spray the amorphous master alloy from the nozzle.
The invention provides a preparation device of an antigravity high-strength high-brittleness alloy material, wherein a refrigerating system consists of a refrigerator and a water pipe; the refrigerator sends water to each original through a water pipe for refrigeration.
The invention provides a preparation device of an antigravity high-strength high-brittleness alloy material, wherein a forming system consists of a copper roller, a fixed bracket and a receiving mechanism; the amorphous material from the nozzle is molded by a copper roller rotating at a high speed and then enters a receiving mechanism.
The beneficial effects of the invention are as follows: according to the invention, the smelting process of the high-strength and high-brittleness alloy material is carried out under the vacuum condition through the vacuum system, no oxygen is doped in the smelting process, the amorphous master alloy is guaranteed to be melted through the pressurizing system to rapidly rise against gravity, the amorphous master alloy is filtered and purified through the pressure release system, the replaceable nozzle is guaranteed to be molded in a single machine with various types of products, the refrigerating system is guaranteed to be molded at low temperature, the molding system is guaranteed to be thin and thick in samples, and meanwhile, the personal safety of operators is guaranteed.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a device for preparing a antigravity high-strength and high-brittleness alloy material;
FIG. 2 is a schematic diagram of the structure of the gas storage chamber of the present invention;
FIG. 3 is a schematic view of a pressing mechanism according to the present invention;
FIG. 4 is a schematic view of the structure of the heating resistance wire of the present invention;
FIG. 5 is a schematic view of the structure of the nozzle of the present invention;
FIG. 6 is a schematic view of the smelting chamber of the present invention;
FIG. 7 is a schematic diagram of the push-up mechanism of the present invention;
FIG. 8 is a schematic view of the structure of the ball check valve of the present invention;
Fig. 9 is a DSC test chart.
In the figure: the device comprises a 1-mechanical pump, a 2-vacuum pipeline, a 3-smelting cavity, a 4-electromagnetic valve, a 5-gas storage tank, a 6-pressurizing pipeline, a 7-flowmeter, an 8-pressure gauge, a 9-charging valve, a 10-gas storage cavity, an 11-pushing-up mechanism, a 12-heating resistance wire, a 13-ceramic pipe, a 14-crucible, a 15-pushing-down mechanism, a 16-spherical resistance valve, a 17-upper cover, a 18-nozzle, a 19-refrigerator, a 20-water pipe, a 21-copper roller, a 22-fixed support and a 23-receiving mechanism.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
Example 1
The invention relates to a device for preparing an antigravity high-strength high-brittleness alloy material, which consists of a vacuum system, a pressurizing system, a heating system, a pressure relief system, a refrigerating system and a forming system. The vacuum system consists of a mechanical pump 1, a vacuum pipeline 2, a smelting cavity 3 and an electromagnetic valve 4; the pressurizing system consists of an air storage tank 5, a pressurizing pipeline 6, a flowmeter 7, a pressure gauge 8, an inflating valve 9, an air storage chamber 10 and an upward pushing mechanism 11; the heating system consists of a heating resistance wire 12, a ceramic tube 13, a crucible 14 and a pressing mechanism 15; the pressure relief system consists of a spherical choke valve 16, an upper cover 17 and a nozzle 18; the refrigerating system consists of a refrigerator 19 and a water pipe 20; the refrigerator 19 sends water to each original through a water pipe 20 for refrigeration; the forming system consists of a copper roller 21, a fixed support 22 and a material receiving mechanism 23 (the specific structure is shown in fig. 1-8).
The mechanical pump 1 is connected to the smelting cavity 3 through a vacuum pipeline 2, a solenoid valve 4 is arranged on the vacuum pipeline 2, and the cavity is vacuumized by controlling the opening of the mechanical pump 1 and the opening of the solenoid valve 4.
The gas storage tank 5 is connected with the vacuum pipeline 2 through a charging pipeline 6, an inflation valve 9 is connected to the charging pipeline 6, and the gas storage tank 5 is opened to fill the protection gas by controlling the inflation valve 9; the other end of the air storage tank 5 is connected with an air storage chamber 10 through a pressurizing pipeline 6, a flowmeter 7 is arranged on the pressurizing pipeline 6, a pressure gauge 8 is arranged on the air storage chamber 10, and an upward pushing mechanism 11 is arranged at the upper end of the air storage chamber 10; by opening the air storage tank 5, controlling the flowmeter 7, observing the pressure gauge 8 to control the pressure difference of the air storage chamber 10, and by controlling the pressure difference, the ascending speed of the upward pushing mechanism 11 is regulated to realize upward pushing.
The heating resistance wires 12 are distributed around the crucible 14, and the ceramic tube 13 is used for isolating the pressing mechanism 15 on the crucible 14; the crucible 14 is heated by heating the resistance wire 12.
The spherical choke valve 16 is arranged above the resistance wire, the upper cover 17 is connected with the smelting cavity 3 above the spherical choke valve, and a nozzle 18 is arranged at the top end of the upper cover 17; the spherical choke valve 16 is pushed by the pushing mechanism 15 to spray the amorphous master alloy from the nozzle 18.
The refrigerator 19 sends water to each element through a water pipe 20 to refrigerate.
The amorphous material from the nozzle 18 is molded by a copper roller 21 rotating at a high speed and then enters a receiving mechanism 23.
Example 2
The heating resistance wire 12 is placed in the smelting cavity 3 and in the middle of the ceramic tube 13 to control the smelting temperature in the crucible 14 through the heat insulation effect of the ceramic tube, so as to achieve the effects of stable heating and uniform temperature rising, wherein the stable temperature can ensure uniform melting of the amorphous master alloy, the problem that the crucible is damaged due to high-power alloy splashing caused by traditional smelting equipment and equipment short circuit caused by alloy splashing is prevented, and the uniform temperature rising can be reflected in distinguishing molten substances through a phase diagram of metal so as to solve the mutual reaction between metal elements caused by short-time fluctuation of temperature and internal oxides and impurities generated by the reaction.
Example 3
The sliding rod between the crucible 14 and the bottom plate of the push-up mechanism 11 can stably drive the crucible 14 to reach the specific position of the spherical stop valve 16, when the push-up mechanism is stopped, the sliding rod slowly descends to the bottom of the smelting cavity with the push-up mechanism under the action of gravity, the mechanism enables the master alloy to ascend against the gravity of the master alloy by limiting the position of the spherical stop valve in the crucible, and the gap between the spherical stop valve and the crucible is small, so that impurities generated in the smelting process of the master alloy can be removed, the novel impurity removing mode is adopted, and the novel impurity removing mode utilizes the characteristics of counter gravity and viscosity of the melted master alloy to separate and purify the amorphous master alloy.
Example 4
The spherical choke valve 16 is embedded under the upper cover 17 and the nozzle 18, when the melted liquid in the crucible 14 is pushed to a specific position under the action of the push-up mechanism 11, the spherical choke valve 16 overcomes the gravity of the spherical choke valve and the strong viscosity and surface tension of amorphous materials, the spherical choke valve is pushed up, melted alloy liquid is sprayed upwards through a gap between the crucible 14 and the spherical choke valve 16, the separation of impurities and the upward spraying of the alloy with good fluidity through the difference of amorphous viscosity are achieved, and the description is made by using the vit1 alloy: when the vit1 alloy melts and then pushes up the melted amorphous master alloy at a high speed under the action of the lifting mechanism, the phenomenon that impurities possibly exist due to poor melting effect caused by rare earth elements in the vit1 is overcome by the alloy, the spray head is closed, the alloy is sprayed upwards against the ball-shaped choke valve and self gravity, the unmelted master alloy is generally at the uppermost end of the melted alloy, when the alloy is contacted with the ball-shaped choke valve, the alloy cannot lift up to be sprayed upwards, but the spray head is not opened, the liquid is equivalent to the liquid in the cavity to be stirred, and the sprayed liquid defaults to be melted completely, and after the gravity and the ball resistance are overcome by repeated spraying, the alloy is extracted and molded, so that the effects of purifying the alloy and separating and purifying are achieved.
Example 5
The nozzle 18 can be replaced, can become the shaping of fine powder or threadlike thing, can become the shaping of flat mouth shape and take the shaping of strip, the clearance between nozzle 18 and the copper roller 21 can be adjusted so and the thickness of shaping product is adjusted, the nozzle also is similar a small-size filter equipment, normal metal shaping is the shaping of spraying downwards of atmospheric pressure, perhaps control shaping, and this mechanism filters the state of melting of amorphous master alloy and overcomes gravity shaping through the control when melting, shaping with big shower nozzle that the state of melting is good, take the amorphous master alloy that stickness is high to utilize high pressure to mould, take the metal strip of Zr base amorphous master alloy shaping to take the example, the sample of shaping obviously shows that two DSC endothermic peaks are low, and the phenomenon that the DSC endothermic peak in centre is high, thereby the glass of intermediate position formation ability is higher than the effect at both ends has been described.
Example 6
The method comprises the steps of smelting Zr-based amorphous master alloy, wherein main elements are Zr, cu and Ni (2 microelements) quinary alloy, processing metal, then loading the processed metal into a crucible, vacuumizing, charging protective gas for smelting after the numerical value in the vacuum reaches 2.0X10 -3, starting an upward pushing mechanism after the metal alloy liquid is completely melted, and spraying the alloy liquid from a nozzle to form an amorphous strip. The amorphous strip prepared by the device has higher surface smoothness than that of amorphous equipment on the normal market from the appearance, no protruding dot-shaped substances are arranged on the surface, the internal structure is observed by a scanning electron microscope after the amorphous strip is cut open rapidly, the internal structure is uniform, the value of an exothermic peak is 2 times of that of a normal material through a DSC test (see figure 9), and the experiment proves that the device achieves the aim of improving the purity of a Zr-based amorphous material through structural improvement.
Of course, the above description is not intended to limit the invention, but rather the invention is not limited to the above examples, and variations, modifications, additions or substitutions within the spirit and scope of the invention will be apparent to those of ordinary skill in the art and are also within the scope of the invention.
Claims (2)
1. The utility model provides a antigravity high strength high brittle alloy material preparation facilities which characterized in that: the device consists of a vacuum system, a pressurizing system, a heating system, a pressure relief system, a refrigerating system and a forming system;
the vacuum system consists of a mechanical pump (1), a vacuum pipeline (2), a smelting cavity (3) and an electromagnetic valve (4);
The mechanical pump (1) is connected to the smelting cavity (3) through a vacuum pipeline (2), an electromagnetic valve (4) is arranged on the vacuum pipeline (2), and the cavity is vacuumized by controlling the opening of the mechanical pump (1) and the opening of the electromagnetic valve (4);
The pressurizing system consists of an air storage tank (5), a pressurizing pipeline (6), a flowmeter (7), a pressure gauge (8), an inflating valve (9), an air storage chamber (10) and an upward pushing mechanism (11);
The gas storage tank (5) is connected with the vacuum pipeline (2) through the pressurizing pipeline (6), the pressurizing pipeline (6) is connected with the inflating valve (9), and the gas storage tank (5) is opened to fill the protecting gas by controlling the inflating valve (9); the other end of the gas storage tank (5) is connected with a gas storage chamber (10) through a pressure charging pipeline (6), a flowmeter (7) is arranged on the pressure charging pipeline (6), a pressure gauge (8) is arranged on the gas storage chamber (10), and the upper end of the gas storage chamber (10) is provided with an upward pushing mechanism (11); the air storage tank (5) is opened, the flowmeter (7) is controlled, the pressure gauge (8) is observed to control the pressure difference of the air storage chamber (10), and the lifting speed of the lifting mechanism (11) is regulated by controlling the pressure difference to realize lifting;
The heating system consists of a heating resistance wire (12), a ceramic tube (13), a crucible (14) and a pressing mechanism (15);
The heating resistance wires (12) are distributed around the crucible (14), and the ceramic pipe (13) is used for isolating the pressing mechanism (15) on the crucible (14); heating the crucible (14) by heating the resistance wire (12);
The pressure relief system consists of a spherical choke valve (16), an upper cover (17) and a nozzle (18);
The spherical choke valve (16) is arranged above the resistance wire, the upper cover (17) is connected with the smelting cavity (3) above the spherical choke valve, and a nozzle (18) is arranged at the top end of the upper cover (17); pushing the spherical choke valve (16) through the pressing mechanism (15) to spray the amorphous master alloy from the nozzle (18);
the forming system consists of a copper roller (21), a fixed bracket (22) and a receiving mechanism (23);
The amorphous material from the nozzle (18) is molded by a copper roller (21) rotating at a high speed and then enters a receiving mechanism (23).
2. The antigravity high strength and high brittleness alloy material preparing apparatus of claim 1, wherein: the refrigerating system consists of a refrigerator (19) and a water pipe (20); the refrigerator (19) sends water to each original through a water pipe (20) for refrigeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410371088.1A CN117961015B (en) | 2024-03-29 | 2024-03-29 | Antigravity high-strength high-brittleness alloy material preparation device |
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| CN202410371088.1A CN117961015B (en) | 2024-03-29 | 2024-03-29 | Antigravity high-strength high-brittleness alloy material preparation device |
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| CN117961015B true CN117961015B (en) | 2024-08-13 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699311A (en) * | 2012-06-28 | 2012-10-03 | 上海交通大学 | Precesion casting method for high temperature alloy complex thin-walled castings |
| CN103706770A (en) * | 2013-12-09 | 2014-04-09 | 北京工业大学 | Method for adopting belt spinning of disc-type single roller to prepare amorphous alloy thin belt |
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| JPH0616927B2 (en) * | 1986-04-22 | 1994-03-09 | 株式会社トーキン | Method for producing ribbon of ultra-quenched amorphous alloy |
| US10562095B2 (en) * | 2017-06-09 | 2020-02-18 | Metal Casting Technology, Inc. | Method and apparatus for counter-gravity mold filling |
| CN114061307B (en) * | 2021-11-29 | 2022-07-01 | 沈阳真空技术研究所有限公司 | Cold crucible antigravity precision casting equipment |
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| CN102699311A (en) * | 2012-06-28 | 2012-10-03 | 上海交通大学 | Precesion casting method for high temperature alloy complex thin-walled castings |
| CN103706770A (en) * | 2013-12-09 | 2014-04-09 | 北京工业大学 | Method for adopting belt spinning of disc-type single roller to prepare amorphous alloy thin belt |
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