Vacuum Brazing of High-Power Vacuum Feedthroughs for India’s Manufacturing

Understanding Vacuum Feedthroughs
Vacuum feedthroughs are specialized components designed to transfer high-power Radio Frequency (RF) energy into Ultra-High Vacuum (UHV) systems while maintaining a completely leak-free environment. They act as a secure and airtight “power gateway” in high-vacuum equipment. The construction typically includes copper contacts for high-power conduction, ceramic insulators for electrical isolation, and stainless-steel flanges for vacuum sealing. The combination of copper, ceramic, and stainless steel ensures excellent mechanical strength, thermal stability, and long-term reliability. To permanently and hermetically join these dissimilar materials, vacuum brazing is the preferred method, capable of withstanding extreme vacuum conditions, high temperatures, and intense radio frequency energy.
Advantages of Vacuum Brazing for Vacuum Feedthroughs
Vacuum brazing is a flux-free process that produces strong, uniform, and leak-tight joints in vacuum feedthroughs, which are essential for high-vacuum applications. This method enables perfect joining between copper, ceramic, and stainless steel components without oxidation or contamination. The resulting assemblies offer exceptional hermetic sealing, high electrical conductivity, and excellent thermal resistance, even under heavy radio frequency loads. With minimal distortion and superior reliability, vacuum brazing extends the service life of vacuum feedthroughs and ensures consistent performance in demanding vacuum systems.
Normantherm Vacuum Brazing Furnace Solutions for High-Power Vacuum Feedthroughs
With more than 15 years of experience, Normantherm provides advanced vacuum brazing furnaces designed specifically for precision joining of copper–ceramic–stainless steel vacuum feedthroughs. Our furnaces deliver advanced vacuum performance, precise temperature control, and repeatable brazing quality, ensuring hermetic, high-strength joints. For Indian manufacturers producing high-power vacuum feedthroughs and other high-vacuum components, Normantherm offers reliable, industry-ready solutions backed by decades of expertise, guaranteeing consistency, quality, and process efficiency.
Editor: Sahera Khatun
Copyright: Normantherm Vacuum Furnace

