特大型气体渗碳炉的流场动力学计算机模拟  

Computer Simulation of Fluid Flow in Large sized Gas Carburizing Furnace

作　　者：阮冬[1,2,3] 潘健生[1,2,3] 刘德忠 张幸 

机构地区：[1]上海交通大学材料学院 [2]江苏盐城丰东热处理有限公司 [3]河南洛阳矿山机械厂

出　　处：《金属热处理》1999年第1期37-40,共4页Heat Treatment of Metals

摘　　要：利用流体动力学的基本原理用计算机模拟了大尺寸齿轮在井式渗碳炉内进行气体渗碳时的流场分布。在炉内流场和温度场都达到稳定状况的定常流动工况下，分别比较了不同的齿轮直径及其摆放在炉内不同位置时的流速变化。计算结果说明，对于高度小于直径的渗碳炉采用单一顶置式风扇和合理的导流罩及导流桶设计，可以获得有利于炉温均匀性和渗碳均匀性的气流分布；计算机模拟还确定了工件、试样和氧探头的合理位置。生产使用的情况显示了流场动力学计算机模拟的优越性。The computer simulation of fluid flow in pit furnace when large sized gears gas carburized has been done using the theory of hydrokinetics.The distribution and velocity of flow around the gears with different sizes and positions has been compared in this paper.The calculating results indicated that its good for the uniformity of temperature in the chamber and the uniformity of carburizing to set a fan on top of the furnace and use reasonable diversion cover and barrel.The reasonable positions of component,sample and oxide probe were also determined by the simulations.The practical production showed the advantages of computer simulation using hydrokinetics.

关 键 词：流体动力学 计算机模拟 齿轮 气体渗碳炉 

分 类 号：TG155.1[金属学及工艺—热处理] TP391.9[金属学及工艺—金属学]