Revieus of high vacuum diffusion pumps manufactured in former ussr 前苏联高真空扩散泵统一系列工作的回顾
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Closed ampoule vacuum diffusion 闭管真空扩散
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Vacuum diffusion welding 真空扩散焊
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Vacuum diffusion welding of refractory steel to heat resistant alloy was investigated in this paper . the effect of welding parameters on the deformation ratio of joints was examined 针对耐热合金与耐热钢的真空感应扩散焊,研究了扩散焊连接工艺参数对接头变形率的影响、接头变形率与接头性能的关系以及不同接头变形率的微观形态。