【摘要】 本文分析了B-A规和银管在除气和工作过程中的放气成份,提出了对银管进行N₂-O₂,交替高温除气处理。利用这一方法能有效地缩短除气时间,提高除气真空度和进氧纯度。文中详细讨论了影响进氧纯度的因素。更多还原

【Abstract】 The composition of released gasses of B-A gauge and Ag tube during degassing and operation are analyzed. The degassing processing of Ag tube at high temperature is suggested by using N2-O2 alternately. In this way, the degassing time of Ag tube is shortened effectively, the degassing vacuum is raised notably and highly pure oxygen permeating through Ag tube is obtained. The effects on the purity of oxygen are discussed in detail.更多还原