钨极氩弧重熔对秸秆还田刀具耐磨性的影响  

Effect of Tungsten Inert Gas Arc Remelting on Wearabilityof Straw Returning Cutters

作　　者：颜海涛[1] 赵建国[1] 赵晓顺[1] 

机构地区：[1]河北农业大学机电工程学院,河北保定071001

出　　处：《热加工工艺》2005年第3期52-53,共2页Hot Working Technology

摘　　要：为了提高秸秆还田刀具的耐磨性,通过单因素试验,研究了火焰喷涂 Ni+60WC 粉末涂层的钨极氩弧重熔开始温度、脉冲电流、氩弧移动速度、重熔后保温方法对刀具耐磨性的影响。优化的钨极氩弧重熔工艺参数为:重熔开始温度800℃,脉冲电流50 A,氩弧移动速度3.0 mm/s,重熔后采用石灰保温。In order to improve the wearability of straw returning cutters, by means of single factor test,the effect of remelting temperature, electric current pulse, moving velocity of tungsten inert gas arc, heat preservation method after remelting on wearability of straw returning was studied. The craft parameters of tungsten inert gas arc remelting were optimized as follows:remelting temperature 800℃, electric current pulse 50A, moving velocity of tungsten inert gas arc (3.0 mm/s),lime heat preservation after remelting.

关 键 词：钨极氩弧 重熔 秸秆还田刀具 耐磨性 

分 类 号：TG174.44[金属学及工艺—金属表面处理]