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Amorphous alloy surface treatment process

An amorphous alloy and surface treatment technology, which is applied in the field of amorphous alloy manufacturing, can solve the problems that affect the preparation accuracy and use effect of the workpiece, the large deformation of the workpiece, and the large roughness, etc., to achieve the elimination of defects and micro cracks, the impact force is small, Good cutting effect

Inactive Publication Date: 2012-05-02
BYD CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] Although the shot peening process improves the plastic deformation ability, toughness and fatigue performance of the amorphous alloy very well, it also brings relatively large roughness to the workpiece, and the residual stress generated by the surface treatment will cause the deformation of the workpiece. Especially for workpieces with thin wall thickness, the deformation of the workpiece will be larger, which will affect the preparation accuracy and use effect of the workpiece

Method used

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Examples

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Effect test

Embodiment 1

[0023] will be composed of Zr 52 Al 10 Cu 30 Ni 7 The amorphous alloy is melted and cast into a metal mold by die-casting equipment to obtain an amorphous alloy blank with a size of 0.6mm×10mm×60mm.

[0024] Fully mix steel shot particles with an average particle size of 0.2mm and white corundum particles with an average particle size of 0.15mm and add them to an automatic sandblasting machine. Under the condition of 0.5MPa, spray the amorphous alloy blank for 20s to obtain sample.

Embodiment 2

[0026] will be composed of Zr 52 Al 10 Cu 30 Ni 7 The amorphous alloy is melted and cast into a metal mold by die-casting equipment to obtain an amorphous alloy blank with a size of 0.6mm×10mm×60mm.

[0027] Fully mix iron sand particles with an average particle size of 0.2mm and quartz sand particles with an average particle size of 0.1mm and add them to an automatic sandblasting machine. Under the condition of 0.3MPa, spray the amorphous alloy blank for 30s to obtain a spray sample .

Embodiment 3

[0029] will be composed of Zr 52 Al 10 Cu 30 Ni 7 The amorphous alloy is melted and cast into a metal mold by die-casting equipment to obtain an amorphous alloy blank with a size of 0.6mm×10mm×60mm.

[0030] Iron sand particles with an average particle size of 0.2 mm and quartz sand with an average particle size of 0.1 mm were added to different injection chambers of the automatic sandblasting machine. Under the condition of 0.3 MPa, the iron sand particles and quartz sand particles simultaneously The blank was sprayed for 30s to obtain spray samples.

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Abstract

The invention discloses an amorphous alloy surface treatment process, which comprises the step of adopting metal particles and nonmetal particles to perform injection treatment on the surface of an amorphous alloy, wherein the metal particles are one or more of steel shots, iron shots, steel sand and iron sand; and the nonmetal particles are one or more of slot materials and sand materials of ceramics and glass. By the amorphous alloy surface treatment process in the invention, the plastic deformation capability and impact toughness of the amorphous alloy can be improved, the surface roughness of the amorphous alloy can be improved, and the workpiece deformation problem in the injection treatment process of the prior art is solved, thereby making applications of amorphous alloys in high-strength precious workpieces and workpieces with high appearance requirements possible.

Description

technical field [0001] The invention belongs to the technical field of amorphous alloy manufacturing, and more specifically, the invention relates to an amorphous alloy surface treatment process. Background technique [0002] Amorphous alloys have been a research hotspot since they were first discovered in 1960. In the 1990s, the multi-element alloying method was adopted to reduce the critical cooling rate of amorphous alloys, realize the preparation of bulk amorphous alloys, and make the engineering application of such materials possible. The structure of short-range order and long-range disorder of amorphous alloy makes it have excellent mechanical properties such as high strength, high elastic limit, and good wear resistance. However, since there are no typical deformation mechanisms such as dislocation slip and twinning, deformation can only be achieved through the formation and extension of shear bands. At room temperature, the shear band causes the matrix to soften a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D7/06
Inventor 宫清张春萌李运春张法亮
Owner BYD CO LTD
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