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A method for horizontal continuous casting of wide amorphous thin strips with a thickness of 200-1500 μm

A technology of horizontal continuous casting and thin strip, applied in the field of amorphous alloy preparation, can solve the problem that detailed parameters such as smelting temperature, heat preservation measures cooling rate, casting and rolling force have not been disclosed, and no specific process protection nodes and technical implementation plans have been found. problems, to achieve the effect of small deformation, large cooling rate and good stability

Active Publication Date: 2020-09-25
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.

Method used

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  • A method for horizontal continuous casting of wide amorphous thin strips with a thickness of 200-1500 μm
  • A method for horizontal continuous casting of wide amorphous thin strips with a thickness of 200-1500 μm
  • A method for horizontal continuous casting of wide amorphous thin strips with a thickness of 200-1500 μm

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Embodiment 1

[0043] 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);

[0044] Distribution method: deep into the roll gap;

[0045] Preparation process:

[0046] a. Prepare 50kg of raw materials according to the atomic percentage, put them into the medium frequency induction melting furnace, and evacuate to 7×10- 2 Pa, heat the alloy raw material until it is completely melted, and continue smelting at 1500°C for 10 minutes.

[0047] b. During the smelting process, the preparation of the forming cavity is completed, and the steps include: 1) All the valve bodies of the forming cavity are closed, vacuumized and filled with argon, the volume purity is above 99.99%, and a slight positive pressure of 0.12 MPa is maintained; 2) The flow distributor is preheated, and one side of the flow distributor adopts a slit-type flow opening to distribute the flow, and it is installed in a fixed position for heating; 3) The temperature of the...

Embodiment 2

[0055] Alloy composition: (Zr 53.5 f 1.5 Cu 30 Al 10 Ni 5 ) 99.9 o 0.1 ;

[0056] Distribution method: deep into the roll gap;

[0057] Preparation process:

[0058] a. Prepare 50kg of raw materials according to the atomic percentage, put them into the medium frequency induction melting furnace, and evacuate to 6×10- 2 Pa, heat the alloy raw material until it is completely melted, and continue smelting at 1400°C for 20 minutes.

[0059] b. During the smelting process, the preparation of the forming cavity is completed, and the steps include: 1) All the valve bodies of the forming cavity are closed, vacuumized and filled with argon, the volume purity is above 99.99%, and a slight positive pressure of 0.12 MPa is maintained; 2) The flow distributor is preheated, and one side of the flow distributor adopts a slit-type flow opening to distribute the flow, and it is installed in a fixed position for heating; 3) The temperature of the circulating water for cooling the casting...

Embodiment 3

[0067] Alloy composition: (Zr 53.5 f 1.5 Cu 30 al 10 Ni 5 ) 99.9 o 0.1 ;

[0068] Distribution method: deep into the roll gap;

[0069] Preparation process:

[0070] a. Prepare 50kg of raw materials according to the atomic percentage, put them into the medium frequency induction melting furnace, and evacuate to 6×10- 2 Pa, heat the alloy raw material until it is completely melted, and continue smelting at 1500°C for 10 minutes.

[0071] b. During the smelting process, the preparation of the forming cavity is completed, and the steps include: 1) All the valve bodies of the forming cavity are closed, vacuumized and filled with argon, the volume purity is above 99.99%, and a slight positive pressure of 0.16MPa is maintained; 2) The flow distributor is preheated, and one side of the flow distributor adopts a slit-type flow opening to distribute the flow, and it is installed in a fixed position for heating; 3) The temperature of the circulating water for cooling the castin...

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Abstract

The invention belongs to the field of preparation of amorphous alloys and specifically relates to a method for conducting horizontal continuous casting on a wide amorphous thin strip with the thinnessof 200-1500 microns in a double-roll mode. The method comprises the following steps of (1) smelting an amorphous alloy according to set components, wherein the components include a zirconium base, acopper base, an iron base, a nickel base and the like and the continuous shaping method of an amorphous metal thin strip at the limiting cooling rate of 500-7500 DEG C / s is designed, and base materials are provided for the follow-up machining procedures; (2) forming a wide casting strip with the thickness of 200-1500 microns through the thin strip continuous casting process; and (3) conducting smelting, shaping and reeling under an inert atmosphere. Through the method, the technological process of the amorphous forming process is short, the cooling rate is high, and the preparation process iscontinuous; and the amorphous alloy thin strip can be prepared efficiently and continuously through the method, and application of the amorphous alloys is promoted.

Description

technical field [0001] The invention belongs to the field of amorphous alloy preparation, and in particular relates to a method for horizontal continuous casting of a wide amorphous thin strip with a thickness of 200-1500 μm by using a twin-roll 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 (>1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/06B22D11/16
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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