微波场下渗硼介质的温度特性研究  

Study on Temperature Property of Boriding Medium Under Microwave Field

作　　者：章桥新[1] 叶卫平[2] 张亮[2] 张建红[1] 

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070 [2]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《热加工工艺》2007年第20期53-55,共3页Hot Working Technology

基　　金：国家自然科学基金资助项目(50371064)

摘　　要：利用渗硼介质吸收微波的特性可实现钢铁表面渗硼层的制备,渗硼介质与微波作用产生的温度特性是影响渗硼层形成最主要的因素。用热电偶精确测定微波场下渗硼介质的温度,采用MATLAB对实验数据进行了曲面插值拟合和分析,结果表明:微波功率(900～3 600 W)和渗硼剂质量(40～160g)对升温速率和稳定温度有较大影响,且当微波功率为1 800 W和2 700 W时,加热温升曲线符合Boltzmann方程;加热过程可以分为开始升温阶段、升温阶段和温度稳定三个阶段。The characteristic of boriding medium absorbing microwave was adopted,which can realize the preparation ofboriding layer on the steel surface.The temperature characteristic producted by boriding medium and microwave action is the main factor of affect boriding layer forming.The temperature of boriding medium under the microwave field was precisely measured by thermoscope.The experimental data were imitated and analyzed by MATLAB. The results show that the microwave power from 900W to 3 600W and the mass of boriding agent from 40g to 160g have a great effect on the heat-up velocity and stable temperature, and when the microwave power is 1 800 W and 2 700 W, the heat-up temperature curves accord with boltzmann equation. The heat-up course can be separated into initial phase, heat-up phase and stable temperature phase.

关 键 词：微波场 渗硼介质 温度特性 

分 类 号：TG156.87[金属学及工艺—热处理]