Stable, advanced, and efficient brazing process

The brazing procedure executed in this dedicated industrial brazing furnace stands as the most critical, high-precision core step in the entire radiator manufacturing workflow, directly defining the structural integrity, sealing performance, pressure resistance and overall service lifespan of finished heat exchangers.

After radiator cores are fully assembled, they go through strict cleaning and complete drying treatment. All connecting joint surfaces are evenly coated with specialized aluminum brazing flux via precise spraying or immersion application. Once prepped, the cores are systematically loaded onto the automated conveyor line and fed into the professional continuous brazing furnace.

This furnace features a dual-zone temperature design, perfectly segmented into a front drying section and a rear high-temperature brazing working section.

Once fully dried, workpieces are automatically transferred into the high-temperature brazing zone, where ambient temperature is precisely maintained between 600℃ and 640℃. During the entire staged heating process, continuous nitrogen inert gas protection is injected into the sealed furnace chamber, effectively preventing high-temperature oxidation of aluminum alloy materials. Under this precisely controlled thermal and atmospheric environment, the brazing flux melts and distributes uniformly across all contact interfaces, forming a permanent, leak-free metallurgical bond between fins, tubes, headers and other core components.

As the heart of radiator production, this advanced brazing technology ensures every unit achieves top-tier cooling efficiency, reliable durability and global-standard quality performance for heavy-duty truck, commercial vehicle, construction machinery and industrial cooling system applications.