Metal part surface coating strengthening method based on laser beam heat treatment

A technology of metal parts and surface coating, which is applied in the field of surface coating strengthening of metal parts based on laser beam heat treatment, which can solve the problems of poor strengthening effect and uneven distribution of metal surface strengthening degree, so as to improve smoothness and heat treatment efficiency , Improve the effect of hardening degree

Active Publication Date: 2021-03-12
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of uneven distribution of local strengthening degree of metal surface and poor strengthening effect in metal surface strengthening of existing laser heat treatment, the purpose of the present invention is to provide a method for strengthening the surface coating of metal parts based on laser beam heat treatment

Method used

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  • Metal part surface coating strengthening method based on laser beam heat treatment
  • Metal part surface coating strengthening method based on laser beam heat treatment
  • Metal part surface coating strengthening method based on laser beam heat treatment

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Experimental program
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Effect test

Embodiment 1

[0033] The method for strengthening the surface coating of metal parts based on laser beam heat treatment includes the following steps.

[0034] Step 1, such as figure 1 and image 3 As shown, the surface of the metal component is sanded to form a plurality of concentrically distributed frosted ring zones, and there is no gap between adjacent frosted ring zones. The frosting degree of the same frosted ring zone gradually increases along the direction away from the center of the circle, and the frosting degree of the middle and low degree zone of the inner frosted ring zone is smaller than that of the middle and high degree zone of the outer frosted ring zone. The change of the frosting degree from the high degree area to the low degree area in the frosted ring zone is in the shape of a quarter wavelength of the slowing growth trend in the sine wave, in which the adjacent frosted ring zone is provided with a buffer zone connecting the high degree zone and the low degree zone ...

Embodiment 2

[0039] The method for strengthening the surface coating of metal parts based on laser beam heat treatment specifically includes the following steps.

[0040] Step 1, such as figure 1 and image 3As shown, the surface of the metal component is sanded to form a plurality of concentrically distributed frosted ring zones, and there is no gap between adjacent frosted ring zones. The frosting degree of the same frosted ring zone gradually increases along the direction away from the center of the circle, and the frosting degree of the middle and low degree zone of the inner frosted ring zone is smaller than that of the middle and high degree zone of the outer frosted ring zone. The change of the frosting degree from the high degree area to the low degree area in the frosted ring zone is in the shape of a quarter wavelength of the slowing growth trend in the sine wave, in which the adjacent frosted ring zone is provided with a buffer zone connecting the high degree zone and the low d...

Embodiment 3

[0045] The method for strengthening the surface coating of metal parts based on laser beam heat treatment specifically includes the following steps.

[0046] Step 1, such as figure 1 and image 3 As shown, the surface of the metal component is sanded to form a plurality of concentrically distributed frosted ring zones, and there is no gap between adjacent frosted ring zones. The frosting degree of the same frosted ring zone gradually increases along the direction away from the center of the circle, and the frosting degree of the middle and low degree zone of the inner frosted ring zone is smaller than that of the middle and high degree zone of the outer frosted ring zone. The change of the frosting degree from the high degree area to the low degree area in the frosted ring zone is in the shape of a quarter wavelength of the slowing growth trend in the sine wave, in which the adjacent frosted ring zone is provided with a buffer zone connecting the high degree zone and the low ...

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Abstract

The invention relates to the technical field of metal processing, in particular to a metal part surface coating strengthening method based on laser beam heat treatment. According to the method, laserheat treatment is sequentially conducted on a frosted annular belt area from inside to outside through annular belt laser beams, a high-area metal surface structure with the low frosted degree flows to a low-area metal surface structure with the high frosted degree in a diverging mode after absorbing heat, rapid diffusion of the inner-side metal surface structure is facilitated, and the heat treatment efficiency is improved; a metal surface group diffuses from the inner side to the outer side to reinforce a polished concave-convex part to form a smooth surface, so that the uniformity of metalsurface strengthening is improved, and the smoothness of the metal surface is also improved; the metal surface is coated with nano coating liquid, so that nano components in the nano coating liquid can be reversely embedded into the metal surface structure in the heat absorption process of the metal surface structure, and the hardening degree of the metal surface strengthening is improved; and theproblems of sparse outer side structure and dense inner side structure of the metal surface in the divergent flowing process are solved.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a method for strengthening the surface coating of metal parts based on laser beam heat treatment. Background technique [0002] Laser heat treatment technology is a method of surface treatment of metals using high-power-density laser beams. It can achieve phase transformation hardening (or surface quenching, surface amorphization, and surface remelting) and surface alloying of metals. Surface modification treatment produces changes in surface composition, structure, and performance that cannot be achieved with its large surface quenching. After laser treatment, the surface hardness of cast iron can reach above HRC60, and the surface hardness of medium-carbon and high-carbon carbon steel can reach above HRC70, so as to improve wear resistance, fatigue resistance, corrosion resistance, oxidation resistance and other properties, and prolong its life. service life. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D10/00C23C26/00C23G1/19B08B3/12
CPCC21D10/005C23C26/00C23G1/19B08B3/12Y02P10/20
Inventor 杜春燕赵晖
Owner SHENYANG LIGONG UNIV
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