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Amorphous alloy component and preparation method thereof

A technology of amorphous alloy and amorphous master alloy, applied in the field of preparation of amorphous alloy, can solve the problems of unstable performance, high cost of amorphous alloy, lack of alloy preparation equipment, etc., and achieves good mold filling and high surface finish. Effect

Inactive Publication Date: 2019-10-01
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] But at present, the bottleneck problems restricting the application of amorphous alloys at this stage mainly include the high cost of amorphous alloys, the difficulty in controlling the structure and defects of alloys, and the lack of alloy preparation equipment. Difficulties such as filling and defect control and microstructure control of amorphous formation, these problems lead to low yield and unstable performance of amorphous alloy components, thus restricting the application of amorphous alloys

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  • Amorphous alloy component and preparation method thereof
  • Amorphous alloy component and preparation method thereof
  • Amorphous alloy component and preparation method thereof

Examples

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preparation example Construction

[0025] In the specific implementation process, the preparation method of a kind of amorphous alloy member proposed by the present invention comprises:

[0026] (1) Alloying the metal raw materials of each component (such as: zirconium-based raw materials) according to the design ratio to obtain an amorphous master alloy, and processing the amorphous master alloy into a size suitable for die-casting;

[0027] (2) Vacuum die-casting the amorphous master alloy: place the amorphous master alloy in a quartz or calcium oxide crucible, and vacuumize the closed environment where the crucible is located, and heat and melt the amorphous master alloy after reaching a suitable vacuum degree alloy, by adjusting the melting temperature, setting the injection speed and controlling the injection pressure to determine the vacuum die-casting conditions, pour the amorphous master alloy melt into the barrel quickly, and melt the amorphous master alloy under the vacuum die-casting conditions After...

Embodiment 1

[0032] In this embodiment, the grade of the amorphous alloy is: Zr-Y 0.8 , the preparation method of the amorphous alloy component is as follows:

[0033] (1) Alloying each component metal raw material zirconium, copper, nickel, aluminum, silver, and rare earth yttrium to obtain an amorphous master alloy, and processing the amorphous master alloy into a size suitable for die-casting;

[0034] (2) Vacuum die-casting the amorphous master alloy: place the amorphous master alloy in a quartz or calcium oxide crucible, and vacuumize the closed environment where the crucible, feeding barrel and mold are located to reach a suitable vacuum degree Then heat and melt the amorphous master alloy, heat the melt temperature of the amorphous master alloy to 950°C, quickly pour it into the barrel, and inject it into the watch case mold at a speed of 0.4m / s and a pressure of 6MPa to obtain an amorphous Alloy watch case.

[0035] Such as figure 1 As shown, the amorphous alloy member in Exampl...

Embodiment 2

[0052] In this embodiment, the grade of the amorphous alloy is: Zr-Y 0.8 , the preparation method of the amorphous alloy component is as follows:

[0053] (1) Alloying zirconium, copper, nickel, and rare earth yttrium to obtain an amorphous master alloy, and processing the amorphous master alloy into a size suitable for die-casting;

[0054] (2) Vacuum die-casting the amorphous master alloy: placing the amorphous master alloy in a crucible, and vacuumizing the closed environment where the crucible, feeding barrel and mold are located and heating to 980°C to form a melt, The melt is poured into a barrel, and injected into a mold at a speed of 0.5 m / s and a pressure of 8 MPa to obtain an amorphous alloy component.

[0055] The yield of the amorphous alloy member of Example 2 was 91%, and the compressive strength was 1700 MPa.

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Abstract

The invention relates to the field of preparation of amorphous alloys, and particularly relates to an amorphous alloy component and a preparation method thereof. The method comprises the following steps: mixing metal raw materials based on design ratio, and alloying to obtain an amorphous master alloy; processing the amorphous master alloy into preset size; performing vacuum die casting on the amorphous master alloy; conditioning the melting temperature; setting pressing injecting speed and controlling the pressing injecting pressure to determine the vacuum die casting condition; and melting the amorphous master alloy and then pressing and injecting into a die under the vacuum die casting condition so as to obtain the amorphous alloy component; the yield of the amorphous alloy component isnot less than 90%; the strength is not less than 1500MPa; the surface smoothness is high; and defects are avoided. According to the method, a reasonable preparation process is determined by controlling the melting temperature, setting the pressing injecting speed, controlling the pressing injecting pressure and adjusting other technical parameter variables in the vacuum die casting process, and thus the filling property, the yield and the mechanical performance of the amorphous alloy component can be improved.

Description

technical field [0001] The invention relates to the field of preparation of amorphous alloys, in particular to an amorphous alloy component and a preparation method thereof. Background technique [0002] Amorphous alloy is a new type of alloy material that has been researched and developed rapidly in recent years. Because of its unique microstructure of long-range disorder and short-range order, amorphous alloy has excellent mechanical and physical and chemical properties, such as: high strength, high hardness, and high elasticity. Ultimate and fracture toughness, extremely high superplasticity in the supercooled liquid phase region. Because of this, amorphous alloys are more and more used in high-end industries such as medical equipment industry, consumer electronics industry, and micro precision parts. [0003] But at present, the bottleneck problems restricting the application of amorphous alloys at this stage mainly include the high cost of amorphous alloys, the difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C45/10B22D17/14
CPCC22C1/03C22C45/10B22D17/14C22C1/11
Inventor 张宏伟汤广全张海峰付华萌李宏朱正旺王爱民张龙
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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