论文部分内容阅读
一、概述玻璃与金属的封接,分匹配封接和非匹配封接。在我国航空电器行业中,目前一般采用4J29膨胀合金与DM-305或DM-308玻璃进行匹配封接。这种封接,金属与玻璃的膨胀系数相同,可以获得玻璃几乎不受应力的封接件。非匹配封接是将软金属与玻璃进行封接,它利用一些金属因屈服极限低而易于变形的特点来减轻玻璃的应力,譬如在杜美丝表面镀铜与玻璃进行封接即属此例。本文介绍的压缩密封,虽然属于非匹配封
First, an overview of glass and metal seal, seal and match the non-matching seal. In China’s aviation electrical industry, the current general use of 4J29 expansion alloy and DM-305 or DM-308 glass matching seal. This seal, the same coefficient of expansion of metal and glass, can be obtained almost no stress glass sealing. Non-matching sealing is soft metal and glass sealing, which uses some of the metal due to low yield and deformation characteristics of easy to reduce the stress of the glass, such as the Dumasi surface copper and glass sealing is the case . This article describes the compression seal, although it belongs to non-matching seal