钛合金液相等离子碳氮共渗的流场分析

Flow Fields Simulation of Plasma Carbonitriding in Liquid for Titanium Alloy

液相等离子碳氮共渗技术可以改变钛合金的表面性质以增强其的表面硬度及耐磨损性能,电解槽中流场分布的均匀性是影响碳氮共渗处理稳定性和工件表面质量的重要因素。通过对电解槽中的流场进行数值模拟,探索电解液的流动方向,流动速度,流量与极板面积大小对电解槽中流场分布均匀性的影响。结果表明:电解液的流动方向是影响流场分布均匀性的主要因素;流速和流量会对电解槽中的压力与速度大小造成影响;极板面积的大小会影响两极板之间电解液的流动。

Plasma Carbonitriding in liquid is used to improve the surface properties and the abrasion performance of titanium alloy. The uniformity of flow fileds in electrolyzer is an important factor to influence the stability of Plasma Carbonitriding and the surface quality. By simulating the flow fields in electrolyzer,the effects of the direction,speed,flow of electrolyte and the area of electrode plate on the uniformity of flow fields were studied. The results showed that the direction of electrolyte has a great influence on the uniformity of flow fields. The speed and flow of electrolyte can only affect the pressure and speed in reactive tank,the area of electrode plate can affect the move of electrolyte between two plates.