Introduction
The BrotherFurnace Vacuum Brazing Furnace with Graphite Hot Zone is a high-performance thermal processing system specifically engineered for precision metal joining applications. Designed to operate under high vacuum or controlled atmosphere conditions, the furnace ensures clean, dense, and high-strength brazed joints.
Leveraging BrotherFurnace’s extensive experience in vacuum heat treatment technology, this system delivers advanced structural design, precise temperature control, and reliable operational stability. It is widely used in industries such as automotive, aerospace, electronics, heat exchangers, and tool manufacturing.
Features
High Temperature Capability
The graphite hot zone supports maximum temperatures of 2000–2200°C (under vacuum or inert atmosphere), making it suitable for demanding brazing and high-temperature processes.
Excellent Temperature Uniformity
The superior thermal radiation properties of graphite ensure excellent temperature uniformity throughout the hot zone, improving product consistency and yield.
Fast Heating Rate and High Efficiency
Thanks to the low thermal mass and high thermal conductivity of graphite, the furnace enables rapid heating and cooling cycles, significantly enhancing productivity.
Clean Vacuum Environment
Brazing under high vacuum conditions effectively eliminates oxidation and contamination, resulting in bright, oxide-free, and high-quality joints.
Furnace Structure
The BrotherFurnace vacuum brazing furnace consists of the following main systems:
Vacuum Chamber
Double-layer water-cooled structure with high-strength sealing design to ensure excellent vacuum integrity.
Graphite Hot Zone
Includes graphite heating elements, graphite insulation (soft felt or rigid board), and a graphite support structure.
Vacuum System
Configured with a mechanical pump, Roots pump, and diffusion pump (or turbomolecular pump), capable of achieving high vacuum levels for clean processing.
Heating System
Resistance heating using graphite elements with multi-zone temperature control to ensure uniform heat distribution.
Cooling System
Water cooling for chamber protection, with optional gas quenching system (nitrogen or argon) for rapid cooling.
Control System
PLC-based fully automatic control with touchscreen HMI, supporting process curve programming and data recording.
Cost-Effective Operation
Compared to molybdenum or tungsten hot zones, graphite offers lower material and maintenance costs, making it an economical choice for large-scale production.
Flexible Atmosphere Control
Compatible with vacuum, nitrogen (N₂), argon (Ar), and partial pressure processes, meeting diverse brazing requirements.
