【摘 要】
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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
【机 构】
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College of Mechanical and Electrical Engineering,College of Forest Resources
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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.
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