A manufacturer of vacuum circuit breakers has added vacuum brazing capability for producing electrical power components utilized in modern power distribution systems. The thermal processing technology joins metal parts used in vacuum interrupters, helping ensure consistent performance in circuit breakers used across industrial and utility power networks.
Vice President of Vacuum Business Segment
SECO/WARWICK
The manufacturer, based in China and specializing in multiple types of vacuum circuit breakers, ordered two vacuum furnaces from SECO/WARWICK, a global manufacturer of industrial heat treatment equipment with operations in North America. The client has previously installed multiple systems from SECO/WARWICK. “We have [clients] who operate more than a dozen of our systems,” said Maciej Korecki, vice president of the Vacuum Furnace Segment at SECO/WARWICK Group.
The furnaces will be used primarily for vacuum brazing and related thermal processing of interrupter assemblies and other circuit breaker components that require strict control of mechanical strength, hermetic sealing, and dimensional stability.
The systems use a pumping configuration with a turbomolecular pump designed to achieve ultra-high vacuum conditions. High temperature uniformity and rapid heating — enabled by seven control zones, including a central heating element — allow for consistent processing of loads. The furnaces are also equipped with a horizontal gas-cooling system and an external cooling unit.
As a critical component in circuit breakers, vacuum interrupters play a key role in safely interrupting electrical current during switching operations. The addition of vacuum brazing capability and controlled vacuum furnace processing allows the manufacturer to produce the sealed assemblies required for reliable performance in power distribution equipment.
Press release is available in its original form here.
