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A kind of substrate surface ultrasonic rolling textured alcrn coating and its preparation process

A technology of ultrasonic rolling and preparation process, applied in the direction of metal material coating process, coating, vacuum evaporation plating, etc., can solve the problems of single coating structure and preparation process, etc., to improve microhardness and enhance bonding force , the effect of reducing the roughness

Active Publication Date: 2021-03-26
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increasing requirements of modern industrial technology on the surface properties of various mechanical parts, it is difficult for a single coating structure and preparation process to meet the requirements.

Method used

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  • A kind of substrate surface ultrasonic rolling textured alcrn coating and its preparation process
  • A kind of substrate surface ultrasonic rolling textured alcrn coating and its preparation process
  • A kind of substrate surface ultrasonic rolling textured alcrn coating and its preparation process

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Experimental program
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Effect test

Embodiment approach

[0026] A typical embodiment of the present invention provides a preparation process for the ultrasonic rolling textured AlCrN coating on the surface of the substrate. Preparation of AlCrN coating;

[0027] The ultrasonic rolling texturing process is as follows: in the continuous ultrasonic rolling process, the base metal moves a set distance along the -X direction, then moves the set distance along the +Y direction, and then moves the set distance along the +X direction. , form an S-shaped tool path, and repeat a single S-shaped tool path at least once to texture the surface of the base metal.

[0028] Through research, the invention finds that when the surface of the base metal is textured by ultrasonic rolling, and then the AlCrN coating is prepared, the bonding force between the coating and the base can be significantly improved, and the friction reduction of the metal material during service can be enhanced. Anti-wear properties extend the life of the material.

[0029] ...

Embodiment 1

[0049] A preparation process for ultrasonic rolling textured AlCrN coating on the surface of a substrate, the substrate material is high-frequency quenched No. 45 steel, which is characterized in that the micro-texture is ultrasonically rolled on the surface of the high-frequency quenched No. 45 steel substrate, and then the The textured surface is deposited with AlCrN coating, and its preparation process, such as figure 1 shown, the steps are as follows:

[0050] (1) The surface of the high-frequency quenched No. 45 steel substrate 1 was mechanically ground and polished to a surface roughness of Ra 0.2 μm, and then placed in alcohol and acetone solutions for ultrasonic cleaning for 15 minutes respectively, and then dried with a hair dryer. , the three-dimensional topography of the treated substrate surface is shown in Figure 4 (a);

[0051] (2) On the ultrasonic rolling machine, set the ultrasonic rolling static pressure to 1000N, the amplitude to be 5μm, the feed rate to ...

Embodiment 2

[0055] A preparation process for ultrasonic rolling textured AlCrN coating on the surface of a substrate, the substrate material is titanium alloy TC4, and it is characterized in that microtexture is rolled out on the surface of the titanium alloy TC4 substrate by ultrasonic rolling, and then deposited on the textured surface AlCrN coating, its preparation process steps are as follows:

[0056] (1) the surface of titanium alloy TC4 base body 1 is mechanically ground and polished to a surface roughness of Ra 0.2 μm, and placed in alcohol and acetone solution respectively for ultrasonic cleaning for 15min, and then dried with a hair dryer;

[0057] (2) On the ultrasonic rolling machine, set the ultrasonic rolling static pressure to 1500N, the amplitude to be 7μm, the feed rate to be 0.05mm / r, the number of rolling times to be 1, and the diameter of the rolling ball 2 to be 12mm. Under the processing parameters, the microtexture processing is realized by adjusting the movement tr...

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Abstract

The invention discloses an ultrasonic rolling textured AlCrN coating on a matrix surface and a preparation process. The preparation process includes the steps that ultrasonic rolling texturing is first carried out on the matrix metal surface, and then the AlCrN coating is prepared on the textured matrix metal surface. The ultrasonic rolling texturing process includes the steps that during continuous ultrasonic rolling, matrix metal is moved by a set distance in the -X direction, moved by a set distance in the +Y direction and then moved by a set distance in the +X direction to form an S-shapedfeeding path, the single S-shaped feeding path is repeated by at least one time, and thus the surface of the matrix metal is textured. The bonding strength of coating-substrate of the matrix metal can be enhanced remarkably, and the tribology performance of the matrix metal is improved significantly.

Description

technical field [0001] The invention relates to an ultrasonic rolling textured AlCrN coating on the surface of a substrate and a preparation process thereof. Background technique [0002] The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] Surface coating technology refers to the use of special processes to form a protective coating with special chemical, mechanical and other properties on the surface of the base material, which can achieve a variety of surface functional needs, such as wear reduction, corrosion resistance and heat resistance. With the increasing requirements of modern industrial technology on the surface properties of various mechanical parts, it is difficult for a single coating struct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/02C23C14/06
CPCC23C14/028C23C14/0641
Inventor 孟莹邓建新
Owner SHANDONG UNIV
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