Getter Firing with Induction

Ambrell has over 10,000 systems installed in over 50 countries and many of them are getter firing application installations.

getter-firing with induction

Improve your getter-firing process without flame! Induction heating focuses energy in your part only. Fire getters in a repeatable, precise process.

We offer exceptional customer service before and after the sale. Your getter firing application will be analyzed and tested in the nearest Ambrell Applications Lab. There is no charge, and you will receive a system recommendation designed to deliver the best possible solution for your brazing requirements. Ambrell delivers the expertise, innovation and system quality to give your company a competitive edge.

Ambrell: About Induction Heating

Read our 4-page brochure "About Induction Heating". Learn more about how the science of induction technology can solve your precision heating problems.



Click to read one of our getter firing Application Notes (after a brief registration). Learn more about:

The process of getter-firing or getter flashing overcomes a specific hurdle which arises during the production of sealed glass tubes. How can an oxygen-free vacuum be produced to extend the life of the filament? The answer is to remove residual gases by heating a metallic disk, known as a getter, inside the bulb.

The getter is coated with Barium, which has an extremely high affinity for oxygen and nitrogen. After the bulb has been pumped down and sealed, the getter is heated to vaporize or "flash" the barium for maximum dispersion, and "get" any residual gas within the tube.

getter-firing is used in manufacturing to extend the life of laser tubes, neon tubes, fluorescent lamps, other high intensity lamps and television picture tubes.

getter-firing with induction heating

Since the round steel disk is an ideal load for a round induction coil, modern induction heating systems quickly and easily heat getters through the glass bulb. Temperatures as high as 1100°C can be reached within 1 second to "flash" or vaporize the metal. Heating with induction is reliable, repeatable, non-contact and energy-efficient. Solid state systems, when used in conjunction with temperature sensing and control equipment, are capable of heating very small areas within precise production tolerances.

Typical RF power supplies for getter-firing range from 3 to 10kW, depending on the parts and application requirements.

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getter-firing   getterfiring_1 Getter firing In A Metal Halide Lamp Getter firing In A Metal Halide Lamp Getter firing In A Metal Halide Lamp Getter firing In A Metal Halide Lamp To heat two 0.5" getters to a red glow inside a light bulb in order to fire the getters within 8 seconds.
getter-firing   getterfiring_2 Getter firing in corners of rectangular vacuum display Getter firing in corners of rectangular vacuum display Getter firing in corners of rectangular vacuum display Getter firing in corners of rectangular vacuum display Induction heating is the only way to heat the getters through the glass tube without heating the tube or other components.