How do glass sinter connectors ensure the reliability of connectors at extreme temperatures?
Publish Time: 2025-04-15
Glass sintering technology can effectively ensure the reliability of connectors at extreme temperatures through its unique process and material properties.1. Process characteristics of glass sinter connectorsSealing: The insulator part of glass sinter connectors is formed by mixing powdered glass and paraffin wax, then undergoing wax removal and vitrification treatment, and finally high-temperature sealing (sintering) with the shell. This process makes the seal between glass and metal much stronger than general seals and can withstand higher temperatures and pressures.High temperature resistance: Glass, as an inorganic non-metallic material, has a high softening point temperature. This means that glass sinter connectors can still maintain stable performance in high temperature environments, and its sealing will not decrease due to temperature increases.2. Material selection and matchingGlass material: The glass material used in glass sinter connectors has high heat resistance and stability, and can maintain its physical and chemical properties unchanged at extreme temperatures.Metal material: The metal material sintered with glass also needs to have excellent conductivity and an expansion coefficient that matches that of glass. For example, Kovar alloy is often used in aviation plugs for matching welding due to its excellent electrical conductivity and expansion coefficient that matches glass. This material matching ensures that when the temperature of the connector changes, the glass and metal can basically keep the same contraction and expansion, thus achieving an excellent sealing structure.3. Specific performance in response to extreme temperaturesHigh temperature environment: In high temperature environment, glass sinter connectors can maintain the stability of their sealing and electrical properties. The high softening point temperature of glass prevents it from softening or deforming due to high temperature, thus ensuring the fixing and sealing performance of the connector. At the same time, although the metal components will expand due to heat, the contact pressure and contact conditions can remain stable due to the strong sealing structure between glass and metal, thus avoiding fluctuations or increases in contact resistance.Low temperature environment: In low temperature environment, although there are differences in the contraction ratio of glass and metal, the unique process and material selection of glass sinter connectors can reduce the occurrence of stress accumulation. This helps prevent fine cracks in the glass, thereby maintaining the insulation performance of the connector. In addition, glass sinter connectors can maintain the elastic stability of the contact parts at low temperatures, ensure the consistency of the plugging and unplugging force, and avoid adverse effects on the normal operation and service life of the connector.Due to its excellent performance, glass sinter connectors are widely used in scientific and technological fields with special requirements for connectors, such as ocean, aerospace, etc. These fields often face the challenge of extreme temperatures, and glass sinter connectors can maintain stable performance in these harsh environments to ensure the normal operation of the system.
