| 摘要 |
radio and electronic engineering; aerospace equipment. SUBSTANCE: device designed for operation at temperatures higher than +250 C and lower than -60 C has aluminum alloy shroud accommodating glass insulator that has axial hole to receive copper current duct. Insulator is soldered to shroud and to current duct over their mating surfaces. Ultimate strength of shroud material upon tempering (annealing) at connector soldering temperature is minimum 3200 kg/sq. cm and temperature coefficient of linear expansion of glass is chosen from ratio of temperature coefficient of alloy to that of glass being equal to or greater than 2, where temperature coefficient of linear expansion of alloy equals (230-260)x10-7 °C-1 and that of glass, (100-120)x10-7 °C-1. EFFECT: enlarged operating temperature range, enhanced strength, improved reliability of sealing. 2 dwg, 1 tbl, 2 ex
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