What are the characteristics of glass sintered electrical connectors?

　　Glass sintering is a common glassmaking process in which glass powders or particles are sintered into strong glass products by high temperature heating. During the sintering process, the glass undergoes several stages of change, including crystallisation, bonding, shrinkage, etc., resulting in a strong and transparent glass product.

　　What are the characteristics of glass sintered electrical connectors?

　　Compared with plastic sealed connectors, glass sealed connectors and metal sealed connectors have the following characteristics:

　　1. Good mechanical strength

　　When sealing glass to metal, a mixed chemical bond is formed through the interpenetration of the glass liquid and the metal oxide layer, which is far more powerful than the adhesion of plastic to metal. As a result, connectors encapsulated with glass and metal have sufficient tensile and torsional strength.

　　2. Good sealing

　　Leakage rates of up to 10-3 pa cubic centimetres per second are possible. In addition, glass has good electrical performance parameters, as do common insulating materials. The insulation resistance and dielectric withstand voltage of glass can satisfy the design requirements of connectors. It also has a high degree of corrosion resistance and is suitable for use in harsh environments.

　　3. Heat Resistance

　　Glass is an inorganic non-metallic material with a high softening point temperature that does not release harmful components when used at high temperatures. Plastics tend to evaporate hazardous components at high temperatures. This is why some connectors, especially those that need to be fully sealed at one end for use as an operating outlet (e.g., process controllers, milliwave coaxial connectors, etc.), cannot be insulated with plastic. Plastic should not be used for insulation.