Vacuum Brazing of Water-cooled Plates for Rail Transportation

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Material: aluminum alloy 6061

Size: 510×320×20mm

Weight: 6.7kg

Heat load: 12kW

The inside of the product adopts a diamond-shaped heat exchange unit, which has high structural strength and strong heat dissipation capacity

Application industry:IGBT module cooling (electronics, electric power, new energy vehicles and other industries)

Semiconductor laser cooling

CPU: GPU (data center, etc.)

The cold plate brazing process is as following:

Machining before brazing: skilled use of machining center to ensure accuracy

Cleaning: The surface is cleaned to ensure the quality of brazing. It is carried out in 10 steps, including degreasing, alkaline washing, water washing, acid washing, multi-directional spraying, blowing off water droplets, and drying.

Vacuum brazing: The RVB-8820 vacuum brazing furnace transfers temperatures up to 750℃ uniformly, and can achieve a vacuum of 10-5 Torr. The effective hot zone is 800mm(L)×800mm(W)×2000mm(D) Operating space, and can achieve a temperature uniformity of ± 2.5 ℃ and a temperature control accuracy of ± 1 °C.

Machining after brazing: rich experience in the subsequent processing of aluminum, surface roughness can reach Ra0.4, flatness <0.05mm (500mm*500mm)

Cleaning: Clean the aluminum chips and grease remaining in the runner.

Surface treatment: the surface of the cold plate can be anodic oxidation, nickel, tin, gold, etc.

Mechanical assembly: including the installation of threaded sheaths, water joints, thermal interface materials and other mechanical components.

Test: ①The fully automatic pressure test system hpress, which has obtained the national patent, is used for pressure test with 50% water and 50% ethylene glycol. ② Use nitrogen for air tightness test.

Learn more:

Vacuum Heat Treatment Furnace

Vacuum Nitriding Furnace

Copyright: SIMUWU Vacuum Furnace