How Induction Atmospheric Brazing Works

Induction brazing in controlled atmospheres under normal or close-to-normal atmospheric pressure is known as atmospheric brazing, allowing for improved control over the process.

In this type of environment, open-air issues such as scaling, oxidation, and carbon buildup can be virtually eliminated. A controlled atmosphere is produced in a vacuum furnace, a sealed box or with an atmospheric bell jar with inert atmospheres of nitrogen, argon, and hydrogen.

Braze a thin walled tube to a steel cap in a hydrogen atmosphere

A single turn helical coil is used to heat the quartz tube and the tube assembly. The tube assembly is held in place inside the quartz tube by a copper fixture and hydrogen is fed into the quartz tube...

Annealing stainless steel caps for a dental application

Our client had a requirement to anneal large quantities of work-hardened stainless steel crowns. Induction was suggested for its precise, controllable heating. Since oxidation is unacceptable in the finished dental product, induction heating is the appropriate choice for heating in an inert atmosphere.

Crucible Melting a variety of materials in a nitrogen atmosphere

The crucible is heated using an induction coil with a four turn pancake at the base that extends upward into a three turn helical coil.

Annealing steel tubes in an inert atmosphere

Induction annealing heats steel tubes to 2000 ºF (1093 ºC) in an inert atmosphere for very small areas within precise production tolerances. A two-turn concentrator coil is used to heat the stainless steel tube. The annealing process takes place in an inert atmosphere to prevent oxidation.

Brazing Hydraulic Hose Assemblies