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Ｚｎ，Ｃｄ，Ｐｂ，Ｓｂ等金属的挥发速率与温度和压力的关系作了研究，结合国外的数据，归纳提出典型曲线和表达式，曲线以临界压Ｐｃｒｉｔ为界分两部分，高于Ｐｃｒｉｔ，残余气体起主要作用，金属挥发速率ω，随压力增大而减小，有ｌｏｇω＝ａ一ｂｐ残；小于Ｐｃｒｉｔ时，金属的蒸气压起决定作用，ω在一定温度时为定值，此规律对实践有重要意义，如确定作业的真空度，温度，加大设备生产率，不污染环境，在真空中不氧化金属，不使金属溶解气体，还可以脱除金属中的气体等。
The relationship between the volatilization rate of Zn, Cd, Pb and Sb and temperature and pressure has been studied. The typical curves and expressions have been summarized according to the data from abroad. The curves are divided into two parts by the critical pressure Pcrit, The residual gas plays a major role. The metal volatilization rate ω decreases with increasing pressure, with log ω = a-bp residual. When Pcrit is smaller than the metal vapor pressure, the metal vapor pressure plays a decisive role and ω is constant at a certain temperature It is of great significance to practice, such as determining the vacuum degree and temperature of the operation, increasing equipment productivity, not polluting the environment, not oxidizing the metal in a vacuum, not dissolving the metal, and removing the gas from the metal.