Ambrell Induction Heating
Ambrell Induction Heating
induction metal-glass sealing image

Metal-to-Glass Sealing with Induction Heating

Ambrell's induction heating systems provide reliable, repeatable, non-contact and energy-efficient heat in a minimal amount of time, providing the necessary control and accuracy to focus heat to a specific area of the part. This makes induction a perfect fit for metal-to-glass sealing. We have offered induction metal-to-glass sealing solutions since 1986. Our engineering expertise has been applied in the lighting industry and research institutes worldwide. We even offer complimentary applications testing from our Applications Laboratory. Read our metal-to-glass sealing application notes below and contact us today to discuss your application. 

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Popular Induction Metal-to-Glass Sealing Notes

Click to read how induction heating can improve the efficiency, effectiveness and safety of your metal-to-glass sealing process.

Hermetically sealing glass-enclosed resistors

Induction heating provides precise, consistent heat to very small parts resulting in repeatable, quality seals. By heating with medium frequency, arcing (which occurs at high frequencies) is avoided.

Heating a Kovar Ferrule for Glass Soldering

The solder formed a relatively uniform domed seal around the fiber despite the asymmetry of the open C coil. It took under 10 seconds to heat the part to soldering temperature

Soldering a kovar piece with glass to a copper base for a photon light source

Induction heating provides ability to use same equipment for both assembly and repair, hands-free heating that involves no operator skill for manufacturing, and uniform control of heat from part to part

Hermetic sealing of stainless steel rods with glass preforms

Induction melting provides hands-free heating that involves no operator skill for manufacturing, amounts of glass are precisely controlled by the glass preforms and even flow of glass creates aesthetically pleasing bond.

Stainless Steel Housing

To heat a stainless steel housing to 18750 F in order to fuse a piece of R6 glass to the inside of the housing.

Repair of Glass Lined Tank

To heat selected areas of a glass lined steel tank to 16000 F in order to perform repairs of cracks and chips.

Important Induction Heating Brochures


About Induction Heating

Induction heating is a fast, efficient, precise and repeatable non-contact method for heating metals or other electrically-conductive materials. The material may be a metal such as brass, aluminum, copper or steel or it can be a semiconductor such as silicon carbide,carbon or graphite. To heat non-conductive materials such as plastics or glass, induction is used to heat an electrically-conductive susceptor, typically graphite, which then transfers the heat to the non-conducting material.

Read our 4-page brochure; learn more about how the science of induction technology can solve your precision heating problems.



Induction Heating Work Coils

The work coil is the component in the induction heating system that defines how effective and how efficiently your work piece is heated.

Read our informative brochure explaining the fundamentals of induction coils and their design.