Technology Optimized Test on the Cutter of Agricultural Machine by Flame Spraying and Remelting NiWC Alloy

MA Yue-jin¹，SHEN Yu-zeng¹，HAO Jian-jun¹，LI Hui-ping²

(1.College of Mechanical and Electrical Engineering, Hebei Agricultural University, Baoding 071001;
2.College of Forest Resources,Hebei Agricultural University, Baoding 071001, China)

摘要:In order to solve the problemof the machine for chopping and returning stubble into soil high-priced and short-lifetime, wear-resistance coating was made on the substrate of 45# steel by flame spraying and remelting NiWC alloy. By means of orthogonal test and multiple factors variance analysis, how the test factors influence the wear-resistance was studied.The technology parameters of flame spraying and remelting NiWC alloy were optimized as follows: coating matching,65% Ni60+ 35% WC; preheat temperature ,450 ℃; acetylene flow, 1000 L/h; spraying distance ,40 mm.

关键词:agricultural machinery; machine for chopping and returning stubble into soil; chopper cutter; flame spraying and remelting; technology parameter;

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