A kind of melting method of zirconium-based amorphous alloy master alloy

A zirconium-based amorphous alloy and master alloy technology, applied in the field of amorphous alloys, can solve the problems affecting the forming properties of the zirconium-based amorphous alloy master alloy, the large volume of zirconium, and the failure to exclude zirconium impurities, etc., to achieve low oxygen and nitrogen content, The effect of uniform composition and elimination of harmful impurity elements

Active Publication Date: 2021-03-26
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] However, in the prior art, due to the large volume of zirconium and the honeycomb structure of zirconium sponge, the magnetic induction coil cannot directly heat the zirconium to melt it. The existing zirconium-based amorphous alloy master alloy is usually melted by adding other alloy raw materials first, and then adding zirconium. , so as to avoid the infusibility of zirconium, but the impurity of zirconium is not excluded in this method, which affects the forming and properties of zirconium-based amorphous alloy master alloy

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  • A kind of melting method of zirconium-based amorphous alloy master alloy

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Embodiment 1

[0029] In this embodiment, the brand name of the amorphous alloy is: AEM-1, the melting method of zirconium-based amorphous alloy master alloy, which includes:

[0030] (1) mechanically compacting the zirconium sponge to obtain a zirconium electrode;

[0031] (2) Install the crucible in the inductor, bake and evacuate, heat through coil induction, load the power to 10kW to preheat the crucible, keep it warm for 6 hours, and the preheating temperature is 500°C;

[0032] (3) Add a zirconium electrode into the crucible, fill it with protective gas, load the power to 70kW, heat and melt through the coil induction, adjust the power in time according to the state of the molten pool, and control the heating temperature to 1600°C;

[0033] (4) After melting for 15 minutes, open the secondary feeding device, add niobium, copper, nickel, aluminum and yttrium into the crucible, continue heating until the melting is uniform, pour into a water-cooled mold, and cool to obtain a zirconium-ba...

Embodiment 2

[0036] In this embodiment, the brand name of the amorphous alloy is: AEM-1, the melting method of zirconium-based amorphous alloy master alloy, which includes:

[0037] (1) mechanically compacting the zirconium sponge to obtain a zirconium electrode;

[0038] (2) Install the crucible in the inductor, bake and evacuate, heat through the coil induction, load the power to 20kW to preheat the crucible; preheat the crucible, keep it warm for 8 hours, and the preheating temperature is 1200 ℃;

[0039] (3) Add a zirconium electrode into the crucible, fill it with protective gas, load the power to 30kW, heat and melt through coil induction, adjust the power in time according to the state of the molten pool, and control the heating temperature to 1000°C;

[0040] (4) After melting for 30 minutes, open the secondary feeding device, add copper and aluminum to the crucible, continue heating until the melting is uniform, pour into a water-cooled mold, and cool to obtain a zirconium-based ...

Embodiment 3

[0043] In this embodiment, the brand name of the amorphous alloy is: AEM-1, the melting method of zirconium-based amorphous alloy master alloy, which includes:

[0044] (1) mechanically compacting the zirconium sponge to obtain a zirconium electrode;

[0045] (2) Install the crucible, start the equipment, load the power, bake the crucible under atmospheric environment and vacuum conditions respectively, heat and vacuumize, keep warm for 4 hours, and the preheating temperature is 800°C;

[0046] (3) Add a zirconium electrode to the crucible, fill it with protective gas, load the power to 50kW, heat and melt through coil induction, adjust the power in time according to the state of the molten pool, and control the heating temperature to 1200°C;

[0047] (4) After 20 minutes of melting, open the secondary feeding device, add aluminum and niobium into the crucible, continue heating until the melting is uniform, pour into a water-cooled mold, and cool to obtain a zirconium-based am...

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Abstract

The invention relates to the technical field of amorphous alloys, in particular to a method for melting a zirconium-based amorphous alloy master alloy. The method includes: pretreating the zirconium sponge to obtain a zirconium electrode; installing the crucible in an inductor, baking and evacuating, and inductively heating the crucible through a coil; , induction heating until melting; after a certain period of time, open the secondary feeding device, add the remaining alloy raw materials into the crucible, induction heating until uniform melting, pour into the mold, cool to obtain zirconium-based amorphous alloy master alloy. On the one hand, the present invention changes the zirconium structure from a honeycomb structure to a solid structure, which is beneficial to induction melting, and can avoid uneven composition caused by partial non-melting of materials during the melting process; on the other hand, by refining and purifying zirconium raw materials for a certain period of time in advance, Harmful impurity elements are eliminated, and the prepared alloy has low oxygen and nitrogen content and uniform composition, thereby obtaining a qualified amorphous alloy master alloy.

Description

technical field [0001] The invention relates to the technical field of amorphous alloys, in particular to a method for melting a zirconium-based amorphous alloy master alloy. Background technique [0002] Amorphous alloy, also called metallic glass, is usually prepared by rapid solidification of liquid alloy melt, and its internal structure is a long-range disordered amorphous structure similar to glass. The unique atomic arrangement structure of amorphous alloy makes it have many excellent characteristics, such as: high strength, high hardness and high wear resistance and so on. It has important application prospects in the fields of national defense, aerospace, petrochemical, biomedicine, precision machinery, consumer electronics, and information. As a research hotspot in the international material field, it is expected to replace traditional materials and has a broad market prospect. [0003] However, in the prior art, due to the large volume of zirconium and the honeyco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/10
CPCC22C45/10C22C1/11
Inventor 张宏伟张海峰刘文强汤广全李宏付华萌朱正旺王爱民李正坤
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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