What is a glass seal for metal?

Glass seal to metal is a way to protect electrical components by sealing inside the glass and metal. There are two types of seals from glass to metal. Compared seals are used by glass and metal varieties that have similar properties of thermal expansion, while compression seals use materials that respond to heat differently. The metal glass sealing technique is often used in the air and military sectors, where electronics must be performed under harsh conditions of the environment.

The purpose of a glass seal to metal is to create an airtight or hermetic sealing around the electronic components. This is achieved by placing the electronics in the glass component that is surrounded by a metal part. The glass is created by sintering. Sintering is the process of creating solid material from powder or crushed elements by heating the material just below the melting point and then by exerting the pressure on the shape of the material. This results in a clean, uniform final product.

and corresponding to gowning on metal metal is made of mAssociations that are selected for their similar coefficients of thermal expansion. The thermal expansion of the material is the value that can be connected to the formula to determine how much the material will be expanded for each level of temperature increase. The use of corresponding materials means that both glass and metal are expanded and downloaded with the same heat with heat and cold. This ensures that the Glass-Kov seal does not break when used under the most extreme conditions.

The equal seals are often produced using KOVAR (KV) cases and pins. Kovar is an alloy made of iron, nickel and cobalt. It is ideal because the thermal expansion coefficient has a similar glass behind a wide range of temperatures. The glass part of the seals compared to metal is made using borosilicate glass, a glass made of silica and boron oxide. A corresponding sealing can be created in any shape.

The seals are used by the cover material that has a thermal expansion coefficient, which is higher than the glass. The scenic contraction around the glass stiffens. There are three types of compression seals: compression seals made of steel and stainless steel, seal of iron compression and seal of alloy compression number 42. Alloy number 42 is an alloy made of nickel and small amounts of other materials. The glass in the compression seal is usually alkalia barrya and the pins are made of nickel or iron.

IN OTHER LANGUAGES

Was this article helpful? Thanks for the feedback Thanks for the feedback

How can we help? How can we help?