电子产品盐雾试验中的盐雾沉降率不确定度分析

摘要

Some electronic products need to do salt spray corrosion test,especial y in the coastal areas use of electronic products must have corrosion resistance,to ensure that its product has met the requirement of the reliability index.More influence to the salt spray test result of the factor mainly has three aspects:salt solution pH value,solution concentration,solution sedimentation rate.This article mainly analyzed the affect of salt fog sedimentation rate of each component,salt spray on the subsidence rate of uncertainty evaluation.%有些电子产品需要做盐雾腐蚀试验，尤其是在沿海地区使用的电子产品必须具备耐腐蚀性能，以保证其产品可靠性指标达到要求。对盐雾试验结果影响比较大的因素主要有三个：盐溶液pH值、溶液浓度、溶液沉降率。该文重点对影响盐雾沉降率的各个分量进行了分析，对盐雾试验溶液沉降率的不确定度进行了评定。