Vacuum Brazing

Vacuum brazing is a material joining technique that offers significant advantages: extremely clean, superior, flux-free braze joints of high integrity and strength. The process can be expensive because it must be performed inside a vacuum chamber vessel.

Metalli’s vacuum brazing process capability limits

◆ Maximum core dimension covering 3500*1200*1200 Length*Width*Height

◆ Maximum temperature 750℃

◆ Temperature uniformity tolerance ±3℃

◆ Over 10 large or medium sized ovens

◆ Maximum vacuum brazing capacity 500 tons per month

◆ Appropriate aluminum alloys: Core alloys: AA3003,6060,6061,6063,6951, Cladding alloys (Brazing alloys): AA4004, AA4104

Typical applications

● Plate fin heat exchangers like oil cooler, inter cooler, air charge cooler, air dryer

● Liquid cold plates

● Other appropriate heat exchangers