Amorphous alloy surface coloring method and amorphous alloy

An amorphous alloy and surface coloring technology, applied in the field of amorphous alloys, can solve the problems of difficult surface coloring of amorphous alloys, and achieve the effects of automatic operation, fast cooling speed and small heat-affected zone.

Inactive Publication Date: 2019-07-02
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention mainly aims at the technical problem that the surface coloring of amorphous alloys is difficult, and provides a method for coloring the surface of amorphous alloys, which can realize partial or overall coloring without affecting the strength of amorphous alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The surface of the zirconium-based amorphous alloy was laser quenched in an air atmosphere. The wavelength of the laser used was 1064 nm, the spot diameter was 1.8 mm, the focal length was 300 mm, the output power was 1000 W, and the scan rate was 20 mm / s. The pulse frequency is 200 KHz and the power density is 3.932×10 8 W / m 2 , using the laser in the zirconium-based amorphous alloy Zr 50 Cu 40 Al 5 Ni 5 The surface was scanned for 5 s, and the corresponding scanning area quickly absorbed heat and changed color, and the zirconium-based amorphous alloy sample S1 was obtained.

Embodiment 2

[0023] The surface of the zirconium-based amorphous alloy was laser quenched in an air atmosphere. The wavelength of the laser used was 1064 nm, the spot diameter was 5 mm, the focal length was 300 mm, the output power was 2000 W, and the scan rate was 5 mm / s. Pulse frequency is 200KHz, power density is 1.019×10 8 W / m 2 , using the laser in the zirconium-based amorphous alloy Zr 60 Cu 25 Al 7 Ni 8 The surface was scanned for 5 s, and the corresponding scanning area quickly absorbed heat and changed color, and the zirconium-based amorphous alloy sample S2 was obtained.

Embodiment 3

[0025] The surface of the zirconium-based amorphous alloy was laser quenched in an air atmosphere. The wavelength of the laser used was 1064 nm, the spot diameter was 10 mm, the focal length was 300 mm, the output power was 3000 W, and the scan rate was 40 mm / s. Pulse frequency is 200KHz, power density is 3.822×10 7 W / m 2 , using the laser in the zirconium-based amorphous alloy Zr 65 Cu 25 Al 5 Ni 5 The surface was scanned for 5 s, and the corresponding scanning area quickly absorbed heat and changed color, and the zirconium-based amorphous alloy sample S3 was obtained.

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Abstract

The invention discloses an amorphous alloy surface coloring method and amorphous alloy. An amorphous alloy surface is laser-quenched in air or nitrogen environment, and the laser output power is 500-3000 W; and the color of the amorphous alloy surface treated with the amorphous alloy surface coloring method is changed. The laser quenching process has the advantages of high heating and cooling speed for the amorphous alloy surface, small heat affected zone, little effect on the performance and size of base materials, easy implementation of local treatment, high production efficiency and easy implementation of automatic operation, and is applicable for processing complex precision parts. According to the amorphous alloy surface coloring method, the amorphous alloy surface is laser-quenched in the air or nitrogen environment, and a laser-scanned area (local or overall) of an amorphous alloy product absorbs heat and changes color, so that marking, patterns or other decorative patterns areformed on the amorphous alloy surface, and the strength of the amorphous alloy is not affected.

Description

technical field [0001] The invention relates to the field of amorphous alloys, in particular to an amorphous alloy surface coloring method and the amorphous alloy. Background technique [0002] Amorphous alloy refers to an alloy in which the unit space of atoms in a solid alloy is arranged in a disordered manner and maintains this relatively stable state within a certain temperature range. Amorphous alloys have excellent physical, chemical and mechanical properties due to their unique long-range disordered and short-range ordered structures. Amorphous alloys have extremely high hardness and are difficult to be oxidized and dyed. Therefore, when using amorphous alloys to make various products, it is difficult to make their appearance more beautiful. [0003] The existing method of coloring the surface of amorphous alloys mainly adopts the method of physical vapor deposition, that is, adopts low-voltage, high-current arc discharge technology, uses gas discharge to evaporate t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/18C22C45/10
CPCC22C45/10C22F1/186
Inventor 王磊
Owner BYD CO LTD
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