摘要
针对饲料粉碎机锤片磨损钝化后因锤片对物料的正面冲击变为切向划擦以及棱角对物料的剪切作用逐渐丧失而导致物料粉碎效率、粉碎质量下降和能耗增高的问题,基于前人提出的锤片自磨刃强化理论,应用气体渗碳工艺技术,对厚度为5.0mm的20钢锤片采用局部气体渗碳、一次加热淬火+低温回火的热处理工艺,得到0.3,0.5,0.8mm等3种渗层厚度的锤片,并将3种锤片安装在型号为SFSP60X60的粉碎机上进行磨损,以渗层厚度作为单一因素,比较了3种锤片不同安装位置的质量磨损量及宏观形貌。实验结果表明:使锤片达到最佳自磨刃效果的渗碳深度为0.5mm。
With the problem that the less crushing and quality and higher energy consumption caused by the passivation of hammers.This paper based on the self-sharpening strengthening theory of hammer,obtaining three kinds of self-sharpening hammers whose carburized layer thickness separately were 0.3mm,0.5mm,0.8mm by using local gas carburizing,quenching and tempering heat treatment process for the hammers.And then these self-sharpening hammers were installed in the grinder whose model is SFSP60X60 to start wear test.Compared the weight wear variation and surface morphology variation of three type of hammers in different Installation position.The experimental results show that the 0.5mm carburized layer hammers have the best self-sharpening effect.
出处
《农机化研究》
北大核心
2012年第8期131-134,142,共5页
Journal of Agricultural Mechanization Research
基金
内蒙古自然科学基金项目(2010MS0806)
关键词
粉碎机
锤片
自磨刃
渗碳
hammer mill
hammer
self-sharpening
carburizing
