Ni60A and WC Wear Resistance Test Optimization Analysis

Abstract

Wear is the main reason for the failure of agricultural machinery, which has become an important constraint factor for the development of high speed and large scale tillage machinery in China. The annual economic loss is more than 15 billion yuan. A plow shovel field soil touching parts as the key parts of tillage machinery, improving the wear resistance and reliability can save farming time and economic benefit. The field of deep plowing plow test was carried out in Beixing farms from Qitaihe city, Heilongjiang province. The optimal design method of three factor and five level orthogonal regression rotation center group was adopted in the experiment. The operation speed, tillage depth and penetration angle as the influence factors, to wear surfacing plow shovel as objective function, data processing and analysis using Design-Exper8.0.5 software to determine the optimal parameters of welding operation of deep plowing plow shovel. The field test shows that the wear resistance of the wear resistant plough is good, and the service life is 2.58 times higher than that of the market. Through the field contrast test found that plasma surfacing abrasion and plough shovel's performance is good, the service life of the average is 2.58 times higher than ordinary plough shovel market.