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Composite coating material based on 45# steel substrate and preparing method of coating

A 45# steel, composite coating technology, applied in the direction of metal material coating process, coating, etc., can solve problems such as cracking, achieve the effect of not easy to crack, simple preparation process, and improve wear resistance and corrosion resistance

Inactive Publication Date: 2016-07-27
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current laser cladding powder system generally includes Co-based, Ni-based and Fe-based alloy powders, but the coating materials prepared by using these powders cannot meet the simultaneous requirements of wear resistance and corrosion resistance, and often to crack

Method used

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  • Composite coating material based on 45# steel substrate and preparing method of coating
  • Composite coating material based on 45# steel substrate and preparing method of coating
  • Composite coating material based on 45# steel substrate and preparing method of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Coating material formula: WC powder: 5%, Y 2 o 3 Powder: 5%, the balance is 304 stainless steel powder.

[0040] The production method of the coating material: add the 304 stainless steel ball milling medium with a ball-to-material ratio of 10:1 and the powder described in the formula into a 304 stainless steel ball mill pot, perform ball milling for 5 hours, and the ball milling speed is 150r / min to obtain laser cladding powder; The laser cladding powder was vacuum-dried at 120°C for 1 hour to obtain the coating material.

Embodiment 2

[0042] Coating material formula: WC powder: 0.1%, Y 2 o 3 Powder: 1%, the balance is 304 stainless steel powder.

[0043] Coating material production method: add 304 stainless steel ball milling medium with a ball-to-material ratio of 10:1 and the powder described in the formula into a 304 stainless steel ball mill pot, and perform ball milling for 4 hours at a milling speed of 180r / min to obtain laser cladding powder; The cladding powder was vacuum-dried at 100°C for 1.5 hours to obtain the coating material.

Embodiment 3

[0045] Coating material formula: WC powder: 10%, Y 2 o 3 Powder: 0.1%, the balance is 304 stainless steel powder.

[0046] Coating material production method: put the agate ball milling medium with a ball-to-material ratio of 10:1 and the powder described in the formula into the agate ball mill pot, and perform ball milling for 4 hours at a milling speed of 120r / min to obtain laser cladding powder; then laser cladding The powder was vacuum-dried at 150° C. for 0.8 h to obtain a coating material.

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PUM

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Abstract

The invention discloses a composite coating material based on a 45# steel substrate and a preparing method of a coating. The coating comprises, by weight percent, 0% to 10% of WC powder, 0% to 1% of Y2O3 powder, and the balance 304 stainless steel powder. The WC powder, the Y2O3 powder and the 304 stainless steel powder which are prepared according to the ratio are mixed and are added into a ball milling tank together with ball milling media, and after ball milling is carried out for 4h to 6h, mixed powder is obtained; the mixed powder is subject to drying treatment under the vacuum environment, and the coating material is obtained; the surface of the 45# steel substrate is ground to be flat; a dedicated powder preset tool is used for flatly laying the coating material on the surface of the 45# steel substrate; and finally, laser heat treatment equipment is used for carrying out laser cladding on the material, and the coating is obtained. The obtained coating has the good wear resistance, and higher corrosion resistance, the preparing technology is simple, the cost is low, and batch production is easily achieved.

Description

technical background [0001] The invention relates to a composite coating material and a preparation method of the coating, in particular to a wear-resistant and corrosion-resistant composite coating material and a preparation method of the coating based on No. 45 steel substrate. Background technique [0002] Laser cladding refers to placing a type of target metal powder on the surface of the cladding substrate, melting it and the thin layer on the substrate surface at the same time through laser irradiation, then rapidly solidifying, and then forming a surface coating that is metallurgically bonded to the substrate. It is a process method that can significantly improve the wear resistance, heat resistance, corrosion resistance, and oxidation resistance of the base surface, so as to modify or repair the metal surface, which not only guarantees the specific performance of the material surface, but also has good economic benefits . Laser cladding is a technology that forms ...

Claims

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Application Information

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IPC IPC(8): C23C24/10B22F1/00
CPCB22F1/0003C23C24/103
Inventor 徐鹏邓强枭罗聪
Owner GUIZHOU UNIV
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