Precision Manufacturing with Vacuum Brazing Furnace

Furnace

Vacuum brazing is one of Tongyu’s key manufacturing technologies for producing high-performance thermal management components. The process allows us to join complex metal structures—such as cold plates, heat exchangers, and liquid cooling modules—with exceptional accuracy and cleanliness.

What Is Vacuum Brazing?

Vacuum brazing is a metal-joining process that uses a filler metal to bond components in a controlled, oxygen-free environment. The parts are heated in a sealed chamber under vacuum, allowing the filler metal to flow and form strong, clean joints without oxidation or contamination.

Advantages of Vacuum Brazing

Compared with traditional brazing or welding, vacuum brazing offers several critical benefits:

• High joint strength and durability
• Excellent thermal conductivitywith no flux residue
• Superior surface finish and dimensional accuracy
• Capability to join dissimilar metalssuch as copper, aluminum, and stainless steel

These characteristics make vacuum brazing ideal for precision cooling applications in AI servers, power electronics, automotive systems, and renewable energy equipment.

Tongyu’s Vacuum Brazing Capability

Tongyu operates multiple high-vacuum brazing furnaces, including the model shown below, enabling large-scale and high-precision production.

Key Specifications:

• Maximum temperature: up to 1100 °C
• Temperature uniformity: ±2 °C
• Chamber size: customizable for large cold plate assemblies
• Applicable materials: Aluminum, Copper, Stainless Steel

With years of experience in thermal solution manufacturing, Tongyu ensures every brazed component meets the highest performance and reliability standards.

About Tongyu

Tongyu Electronics Co., Ltd. is a leading manufacturer of customized thermal solutions, specializing in liquid cold plates, heat sinks, vapor chambers, and integrated cooling modules.
With facilities in Dongguan, Henan, and Vietnam, Tongyu delivers innovation, quality, and precision to global partners across the data center, automotive, and energy industries.