A method for continuous preparation of zirconium-based amorphous thin strips

A zirconium-based amorphous and thin strip technology, which is applied in the field of amorphous alloy preparation, can solve the problem of no specific process protection nodes and technical implementation plans, smelting temperature, heat preservation measures, cooling speed, casting and rolling force and other detailed parameters that have not been disclosed. and other problems, to achieve the effects of small deformation, good heat conduction under pressure, and fast cooling speed

Active Publication Date: 2020-11-27
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent (publication number CN1486800A) discloses a continuous casting and rolling technology of bulk amorphous alloys. The metal melt melted in the crucible is injected into two relatively rotating water-cooled rolls, and a bulk amorphous plate is prepared by double-roll casting and rolling. , rods, etc., but the patent does not see specific process protection nodes and technical implementation plans, and does not disclose detailed parameters such as melting temperature, heat preservation measures, flow control measures, cooling speed, casting and rolling force, etc.

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  • A method for continuous preparation of zirconium-based amorphous thin strips
  • A method for continuous preparation of zirconium-based amorphous thin strips
  • A method for continuous preparation of zirconium-based amorphous thin strips

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Effect test

Embodiment 1

[0046] Alloy composition: (Zr 53.5 f 1.5 Cu 30 al 10 Ni 5 ) 99.9 o 0.1 (atomic percentage at.%, the same below);

[0047] Distribution method: deep into the roll gap;

[0048] Preparation process:

[0049] a. Prepare 50kg of raw materials according to the atomic percentage, put them into a vacuum induction melting furnace, and evacuate to 0.05Pa, heat the alloy raw materials until they are completely melted, and continue melting at 1500°C for 10 minutes.

[0050] b. Turn off the vacuum pump, fill the vacuum induction melting furnace with high-purity argon with a volume purity of 99.999% to atmospheric pressure, open the gate valve, put down the guide tube, and pass the alloy through the guide tube (the preheating temperature of the guide tube 1000℃) into the tundish protected by high-purity argon.

[0051] c. After the alloy is soaked in the tundish, open the stopper, and evenly distribute the alloy melt through the distribution nozzle (the preheating temperature of t...

Embodiment 2

[0056] Alloy composition: (Zr 53.5 f 1.5 Cu 30 al 10 Ni 5 ) 99.9 o 0.1 ;

[0057] Distribution method: deep into the roll gap;

[0058] Preparation process:

[0059] a. Prepare 50kg of raw materials according to atomic percentage, put them into a vacuum induction melting furnace, and evacuate to 0.03Pa, heat the alloy raw materials until they are completely melted, and continue melting at 1400°C for 20 minutes.

[0060] b. Turn off the vacuum pump, fill the vacuum induction melting furnace with high-purity argon with a volume purity of 99.999% to atmospheric pressure, open the gate valve, put down the guide tube, and pass the alloy through the guide tube (the preheating temperature of the guide tube 950°C) into the tundish protected by high-purity argon.

[0061] c. After the alloy is soaked in the tundish, open the stopper, and evenly distribute the alloy melt through the distribution nozzle (the preheating temperature of the distribution nozzle is 1000°C) into the g...

Embodiment 3

[0066] Alloy composition: (Zr 53.5 f 1.5 Cu 30 al 10 Ni 5 ) 99.9 o 0.1 ;

[0067] Distribution method: deep into the roll gap;

[0068] Preparation process:

[0069] a. Mix 50kg of raw material according to atomic percentage, put it into a vacuum induction melting furnace, and evacuate it to 0.08Pa, heat the alloy raw material until it is completely melted, and continue melting at 1500°C for 10 minutes.

[0070] b. Turn off the vacuum pump, fill the vacuum induction melting furnace with high-purity argon with a volume purity of 99.999% to atmospheric pressure, open the gate valve, put down the guide tube, and pass the alloy through the guide tube (the preheating temperature of the guide tube 900°C) into the tundish protected by high-purity argon.

[0071] c. After the alloy is soaked in the tundish, open the stopper, and evenly distribute the alloy melt through the distribution nozzle (the preheating temperature of the distribution nozzle is 1150°C) into the gap of th...

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Abstract

The invention belongs to the field of amorphous alloy preparation, and in particular relates to a method for continuously preparing zirconium-based amorphous alloy thin strips by using a double-roller method. In this method, the alloy raw material or the preliminarily prepared master alloy is melted in a vacuum induction melting furnace to obtain a zirconium-based amorphous master alloy melt. After the temperature control meets the requirements, argon is filled and the gate between the vacuum induction melting furnace and the tundish is opened. The plate valve guides the melt into the tundish protected by high-purity argon through the preheated runner. After the flow control stopper of the tundish is opened, the alloy melt is uniformly distributed through the distribution nozzle and injected into the gap of the casting roll, and then cooled by the water-cooled casting roll to form an amorphous strip, and the amorphous strip is continuously cooled by the row of rolls. Import the coiling device. The whole casting-rolling-cooling-coiling process is completed in the casting machine cavity protected by high-purity argon. In the present invention, the amorphous formation process is short, the cooling rate is fast, and the preparation process is continuous. The method of the present invention can efficiently and continuously prepare zirconium-based amorphous thin strips, and promote the application of zirconium-based amorphous alloys.

Description

technical field [0001] The invention belongs to the field of amorphous alloy preparation, and in particular relates to a method for continuously preparing zirconium-based amorphous alloy thin strips by using a double-roller method. Background technique [0002] Amorphous alloy, also known as metallic glass or glassy alloy, is a new type of special alloy material whose material state is obviously different from that of crystalline state, which is prepared by modern rapid solidification metallurgy technology. Due to the unique atomic structure arrangement and metal bond composition of amorphous alloys, amorphous alloys have better mechanical, physical and chemical properties than traditional crystalline metal materials. This makes amorphous alloys have broad application prospects in aerospace, weapon industry, precision instruments, biomedicine and power transmission. [0003] The preparation of early amorphous alloys required a large cooling rate (>10 6 K / s), at that tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/10B22D11/06C22C1/02
CPCC22C45/10C22C1/02B22D11/0622C22C1/11
Inventor 袁国张晨阳张元祥王洋康健李振磊王黎筠王国栋
Owner NORTHEASTERN UNIV LIAONING
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