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di yi zhang jian lou de yi ban gai nian
Pages: 1-5
Year: Issue:  S1
Journal: Vacuum and Cryogenics

Keyword:  标准漏孔检漏技术漏气真空系统真空技术虚漏漏率真空度容器焊缝;
Abstract: <正> 一、概述1.名词解释漏气——也叫实漏。气体通过装置、容器上的漏孔或间隙从高压侧流到低压侧去的现象叫漏气。虚漏——不是由于漏孔,而是由于材料的放气、解吸、凝结气体的再蒸发以及焊缝夹层、半通螺孔死空间等原因而引起真空系统中压强上升的现象称为虚漏。
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