引言 K—200金属油扩散泵的研制工作开展得比较早,1972年沈阳真空技术研究所曾组织过各生产厂对 K—200油扩散泵进行质量评比,其结果不够理想。于是,1974年真空行业对 K—200泵又进行了联合设计,取得了可喜的成果。但是,各厂的 K—200泵对全面性能指标都达到部颁标准还存在着一 Introduction K-200 metal oil diffusion pump development carried out relatively early in 1972, Shenyang Institute of Vacuum Technology organizations have been organized by the manufacturer of K-200 oil diffusion pump quality appraisal, the result is not satisfactory. As a result, the vacuum industry in 1974 K-200 pump and a joint design, and achieved gratifying results. However, the factory K-200 pump to achieve full performance indicators have ministerial standards still exist one