The effect of silicone vapour concentration on the contact failure was examined by using micro relays and motor brush-slip ring (commutator) contacts. A minimum limiting concentration level which does not affect contact reliability was found. This limiting level was 10 ppm (0.13 mg/1). Validity of the limiting level was confirmed by the relationships among concentration, temperature, SiO/sub 2/ film thickness and contact resistance. Furthermore, the effect of the degree of silicone polymerization on the limiting concentration was derived by an empirical formula. These results were confirmed by the contact failure data due to the silicone contamination.
展开▼
机译：通过使用微型继电器和电动机电刷滑环（换向器）触点，检查了有机硅蒸汽浓度对触点故障的影响。找到了不影响接触可靠性的最小极限浓度水平。该极限水平是10ppm（0.13mg / 1）。极限水平的有效性由浓度，温度，SiO / sub 2 /膜厚度和接触电阻之间的关系确定。此外，通过经验公式得出有机硅聚合度对极限浓度的影响。这些结果由有机硅污染引起的接触失败数据证实。
展开▼
