Glass-to-Metal Seals

Glass to Metal Seals. When constructing glass vacuum devices, glass to metal seals are required to get electrical connections through the glass envelope. The problem is that the metal must have a co-efficient of expansion which is very similar to the glass. This is particularly important with soda-lime glass. It is also important that the glass bonds well to the metal. Up to about 1915 this

Complete Hermetics Offers Complete Glass-To-Metal Seals and Feedthroughs. Complete Hermetics uses industry standards to create reliable glass-to-metal feedthroughs and seals according to the following system: Glass is heated to a molten state then wetted to the metal, forming a tight bond. The thermal expansion of the glass and the metal are carefully measured and controlled to prevent

US4888037A - Glass to metal sealing process - … Glass to metal sealing process Download PDF Info Publication number US4888037A. US4888037A US07/229,588 US22958888A US4888037A US 4888037 A US4888037 A US 4888037A US 22958888 A US22958888 A US 22958888A US 4888037 A US4888037 A US 4888037A Authority US United States Prior art keywords glass process metal volume percent inert gas Prior art date 1987-10-05 Legal …

Upon solidification of the seal during the manufacturing process, the housing will contract around the glass, applying a desirable compression stress on the glass bead. The strength of the glass-to-metal seal is reinforced mechanically as well as chemically, creating a stronger, more reliable part. Compression seals are often made using steel What is a Glass To Metal Seal Feedthrough | …

Glass To Metal Seals | SpringerLink