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Coating preparation method based on hard alloy substrate surface nanocrystallization

A cemented carbide substrate, nanotechnology, applied in the direction of metal material coating process, coating, ion implantation plating, etc., to achieve the effect of expanding the application range, high diffusion coefficient, and improving penetration depth and concentration

Active Publication Date: 2019-08-09
ZOLTRIX MATERIAL GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Up to now, no report has been found to improve the bonding ability of the film substrate and improve the comprehensive performance of the coating by means of nanometerizing the surface of the cemented carbide substrate material.

Method used

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  • Coating preparation method based on hard alloy substrate surface nanocrystallization

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The coating preparation method based on the surface nanometerization of the cemented carbide substrate is specifically carried out according to the following steps:

[0048] S1, base material preparation: Use a diamond grinding disc to grind the surface of the YG8 cemented carbide base material according to 80 #, 180 #, 400 #, 600 #, 800 #, 1000 #, 1200 #, 1500 #, and then polish it. It is smooth and clean;

[0049] S2, cleaning the surface of the matrix material: ultrasonically clean the matrix material obtained in step S1 in an acetone solution for 30 minutes, and dry it with a hair dryer after cleaning;

[0050] S3, surface nanometerization of the base material: the base material obtained in step S2 is subjected to ultrasonic shot peening surface nanometerization treatment to obtain a gradient nanocrystalline / microcrystalline deformed layer; the shot peening medium is stainless steel balls, hard alloy balls, and alumina ceramic balls At least one of these; peening m...

Embodiment 2

[0055] The coating preparation method based on the surface nanometerization of the cemented carbide substrate is specifically carried out according to the following steps:

[0056] S1, base material preparation: Use a diamond grinding disc to grind the surface of the YG8 cemented carbide base material according to 80 #, 180 #, 400 #, 600 #, 800 #, 1000 #, 1200 #, 1500 #, and then polish it. It is smooth and clean;

[0057] S2, cleaning the surface of the matrix material: ultrasonically clean the matrix material obtained in step S1 in an acetone solution for 30 minutes, and dry it with a hair dryer after cleaning;

[0058] S3, nanometerization of the surface of the base material: the base material obtained in step S2 is subjected to ultrasonic rolling surface nanometerization treatment, the indenter is a hard alloy ball with a diameter of 14mm, the ultrasonic frequency is 28KHz, and the reduction is 0.05-0.1mm; : 0.1-0.6MPa;

[0059] S4, coating preparation: after the base ma...

Embodiment 3

[0063] The coating preparation method based on the surface nanometerization of the cemented carbide substrate is specifically carried out according to the following steps:

[0064] S1, base material preparation: Use a diamond grinding disc to grind the surface of the YG8 cemented carbide base material according to 80 #, 180 #, 400 #, 600 #, 800 #, 1000 #, 1200 #, 1500 #, and then polish it. It is smooth and clean;

[0065] S2, cleaning the surface of the matrix material: ultrasonically clean the matrix material obtained in step S1 in an acetone solution for 30 minutes, and dry it with a hair dryer after cleaning;

[0066] S3, surface nanometerization of the matrix material: the matrix material obtained in step S2 is subjected to ultrasonic impact surface nanometerization treatment, and the material of the impact needle is mold steel; frequency: 15-20 KHz;

[0067] Step S4, coating preparation: after the base material obtained in step S3 was ultrasonically cleaned and dried, i...

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Abstract

The invention discloses a coating preparation method based on hard alloy substrate surface nanocrystallization. The coating preparation method based on the hard alloy substrate surface nanocrystallization comprises the steps that S1, a substrate is prepared, specifically, a diamond frosted disk is adopted to grind and polish the surface of a coarse-grain hard alloy substrate; S2, the surface is cleaned; S3, surface nanocrystallization is carried out, specifically, the surface of the coarse-grain hard alloy substrate is subjected to the surface nanocrystallization, the method of the surface nanocrystallization is at least one of ultrasonic shot-peening, ultrasonic rolling or ultrasonic peening; and S4, a coating is prepared, specifically, after a substrate material is subjected to ultrasonic cleaning and is dried, the substrate material is put into a sputtering chamber, a TiAlN coating plating is carried out by a magnetron sputtering method, and the coating is obtained. According to thecoating preparation method based on the hard alloy substrate surface nanocrystallization, the mechanical properties and the film-substrate combined capacity of the substrate material are improved, the combination properties of the coating are improved, the preparation technology is simple, the cost is low, and the problems in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of hard alloy coatings, and relates to a coating preparation method based on the nanometerization of the surface of a hard alloy substrate. Background technique [0002] With the development of metal cutting technology, especially the emergence of new technologies such as high-speed and high-efficiency cutting, dry cutting and hard cutting, higher technical requirements are put forward for metal cutting tools. Tool coating treatment is an important way to improve the comprehensive performance of tools. Its significance lies in combining the characteristics of the tool substrate and coating, which not only maintains the good toughness of the metal substrate, but also has high hardness and high wear resistance of the coating. Features, so as to realize the comprehensive modification of traditional cutting tools, which can effectively improve processing efficiency and processing accuracy, prolong the service li...

Claims

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Application Information

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IPC IPC(8): C23C14/02C23C14/06C23C14/35
CPCC23C14/0036C23C14/028C23C14/0641C23C14/352
Inventor 张雪辉祝绳健梁彤祥胡义锋张文龙唐福钱王梦娇吕秀芬
Owner ZOLTRIX MATERIAL GUANGZHOU
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