Surface wear resistance strengthening treatment method for agricultural soil touching part

A technology for strengthening treatment and workpiece surface, applied in the field of agriculture, can solve problems such as complex process, achieve the effect of good bonding, small soil friction coefficient, and reduce agricultural farming costs

Inactive Publication Date: 2017-05-10
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although scholars at home and abroad have used various technologies and methods to reduce the wear of agricultural soil-contacting parts, they have not been applied to actual agricultural production due to cost or complex processes.

Method used

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  • Surface wear resistance strengthening treatment method for agricultural soil touching part
  • Surface wear resistance strengthening treatment method for agricultural soil touching part
  • Surface wear resistance strengthening treatment method for agricultural soil touching part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 2 As shown, the working surface of the 65Mn steel plowshare or subsoiling shovel head is polished with a fine grinding wheel and metallographic sandpaper. Requirements: the polished working surface has no deep scratches or a few scratches but the direction of the scratches is the same.

[0031] Use 20% NaOH solution to degrease the polished 65Mn steel plowshare or subsoiling shovel head in boiling water. After the degreasing is completed, soak it in 5% HCl solution at room temperature for 8 minutes for derusting cleaning, and then clean it; finally use 3% Soak in nitric acid solution for 8 seconds for activation treatment.

[0032] Place the pretreated plowshare or subsoiling shovel head in a low-temperature heating furnace for preheating at 500°C for 30 minutes.

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Abstract

The invention discloses a surface wear resistance strengthening treatment method for an agricultural soil touching part. The surface wear resistance strengthening treatment method comprises the following steps: polishing, carrying out pretreatment, preheating, carrying out salt bath treatment, cleaning and carrying out thermal treatment. According to the surface wear resistance strengthening treatment method, a carbide wear-resistant coating is prepared on the surface of the agricultural soil touching part, and the coating has the advantages of good combination with matrix, high hardness, compactness and smoothness as well as low coefficient of friction with soil, so that wear resistance of the surface of the agricultural soil touching part can be improved, the service life of the agricultural soil touching part can be prolonged, and the agricultural cultivation cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a surface wear-resistant strengthening treatment method of agricultural soil-contacting parts. Background technique [0002] During the actual farming process of agricultural machinery, its soil-contacting parts (such as plowshares, rotary tillers, blades of crushing and returning machines, hoe shovels, loose soil shovels, harrow blades, etc.) have long-term contact with soil, sand, stones, stubble, etc. Seriously, the service life is short, which leads to increased farming resistance, increased fuel consumption, reduced work efficiency, reduced farming quality, and increased operating costs. According to unsafe statistics, more than 80% of the failures of agricultural soil-contacting parts are caused by wear. Therefore, wear resistance has become the main performance index for material selection of soil-contacting parts. Since wear mostly occurs on the surface o...

Claims

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Application Information

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IPC IPC(8): C23C10/24C23C10/02C23C10/60C21D1/18C21D9/00
CPCC23C10/24C21D1/18C21D9/0068C23C10/02C23C10/60
Inventor 张卫国祝天一党威龙冯松科刘志杰杨福增郭康权
Owner NORTHWEST A & F UNIV
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