摘要
采用在表面涂覆微波吸收涂层的方式实现了块体金属材料的微波快速加热,研究了涂覆不同微波吸收涂层试样的微波加热曲线。结果表明：在保证涂料流动性的前提下,对于单一Si C涂层,随涂料中Si C含量的提高,微波加热效果也随之提高。当Si C质量分数为72.7%时,材料的微波加热效果最佳,试样最高温度为730℃（t=15 min）;但是,整体上其加热能力有限。Al2O3的引入提高了吸波涂层的高温加热能力,当mAl2O3：mSiC=3：2时,加热效果最好;在测试条件内（t=15 min）,样品可被加热到设定温度（800℃）。块体金属微波快速加热效率明显优于传统的加热方式。
The microwave rapid heating of bulk metallic materials was realized by coating microwave absorbing layer on the surface of the material.The microwave heating curves of the samples coated with different microwave absorbing coatings were investigated.The results show that,under the premise of ensuring the fluidity of coatings,for the coatings mainly including Si C microwave absorbing materials,the microwave heating effect increases with the increase of Si C content in the coating.The best microwave heating effect can be achieved when the mass fraction of Si C particles is 72.7%,with the maximum temperature of 730℃（t=15 min）.However,its heating ability is limited as a whole.The incorporation of Al2O3can improve the heating ability of the coating at high temperature.The best microwave heating effect of the coating can be achieved when the mass ratio of m（Al2O3）：m（Si C）is 3：2.The sample could be heated to the desired temperature（800℃）under the test condition（t=15 min）.The efficiency of microwave heating of bulk metallic material is much better than that of the traditional heating method.
作者
崔岩
邵健
曹雷刚
杨越
CUI Yan;SHAO Jian;CAO Leigang;YANG Yue(School of Mechanical and Materials Engineering, North China University of Technology, Beijing 100144, China)
出处
《热加工工艺》
CSCD
北大核心
2018年第10期151-155,共5页
Hot Working Technology
基金
国家高技术研究发展计划(863计划)资助项目(2013AA-0 31202)
北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD20130301)
关键词
块体金属
微波加热
微波吸收涂层
加热曲线
bulk metallic materials
microwave heating
microwave absorbing coatings
heating curve
