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A method for continuous preparation of copper-based amorphous thin strip

A thin strip, amorphous technology, applied in the field of amorphous alloy preparation, can solve the problem that no specific process protection node and technical implementation plan, smelting temperature, heat preservation measures cooling rate, casting and rolling force and other detailed parameters are not disclosed. , to achieve the effect of small deformation, good heat conduction under pressure, and large cooling rate

Active Publication Date: 2020-12-25
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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  • A method for continuous preparation of copper-based amorphous thin strip
  • A method for continuous preparation of copper-based amorphous thin strip
  • A method for continuous preparation of copper-based amorphous thin strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Alloy composition: (Cu 60 Zr 20 f 10 Ti 10 ) 99.9 o 0.1 (atomic percentage at.%, the same below);

[0039] Distribution method: deep into the roll gap;

[0040] Preparation process:

[0041] a. Prepare 20kg of raw material according to the atomic percentage, put it into a vacuum induction melting furnace, and evacuate it to 0.05Pa, heat the alloy raw material until it is completely melted, and continue melting at 1500°C for 10 minutes.

[0042] 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 920°C) into the tundish protected by high-purity argon.

[0043] 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 distributi...

Embodiment 2

[0048] Alloy composition: (Cu 46 Zr 42 Al 7 Y 5 ) 99.9 o 0.1 ;

[0049] Distribution method: deep into the roll gap;

[0050] Preparation process:

[0051] a. Prepare 20kg of raw materials according to the 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.

[0052] 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.

[0053] 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 1100°C) into the gap of t...

Embodiment 3

[0058] Alloy composition: (Cu 60 Zr 20 f 10 Ti 10 ) 99.9 o 0.1 ;

[0059] Distribution method: deep into the roll gap;

[0060] Preparation process:

[0061] a. Prepare 20kg of raw materials according to the atomic percentage, put them into a vacuum induction melting furnace, and evacuate to 0.08Pa, heat the alloy raw materials until they are completely melted, and continue melting at 1500°C for 10 minutes.

[0062] b. Turn off the vacuum pump, fill the vacuum induction melting furnace with 99.999% high-purity argon 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 is 900 ℃) into the tundish protected by high-purity argon.

[0063] 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 the casting roll, so...

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Abstract

The invention belongs to the field of amorphous alloy preparation, and specifically relates to a method for continuously preparing copper-based amorphous alloy thin strips using a double-roller method. In this method, alloy raw materials or preliminary master alloys are smelted in a vacuum induction melting furnace to obtain a copper-based amorphous master alloy melt. After the temperature control reaches the requirements, argon gas is filled and the gate between the vacuum induction melting furnace and the tundish is opened. The plate valve introduces the melt through the preheated flow channel into the tundish protected by high-purity argon gas. After the flow control plug of the tundish is opened, the alloy melt is evenly distributed through the distribution nozzle and then injected into the gap of the casting roller. It is cooled by the water-cooled casting roller and formed into an amorphous strip. The amorphous strip continues to be cooled by the row roller and Import take-up equipment. The entire casting-rolling-cooling-coiling process is completed in the casting machine cavity protected by high-purity argon gas. In the present invention, the amorphous formation process is short, the cooling speed is fast, and the preparation process is continuous. The method of the present invention can be used to efficiently and continuously prepare copper-based amorphous thin strips, thereby promoting the application and development of 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 copper-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 time, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/06C22C1/00C22C45/00
Inventor 张晨阳袁国张元祥王洋康健李振磊王黎筠王国栋
Owner NORTHEASTERN UNIV LIAONING
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