将粗粉坯体配以不同比例新料置于额定功率为50 KW的真空感应熔炼炉中,升高真空感应熔炼炉功率使坯体完全熔化,随后降低功率至11KW进入精炼期,利用照相机通过观察镜对熔体进行拍照。
The coarse powder green bodies were mixed with new materials in different proportions and placed in a vacuum induction melting furnace with a rated power of 50 KW. The power of the vacuum induction melting furnace was increased to completely melt the green bodies, and then the power was reduced to 11KW to enter the refining period. A camera was used to take pictures of the melt through the observation mirror.