The Ultimate Guide to Aluminium Brazing Furnace: Types, Process, and Best Practices

Aluminium brazing is a critical industrial process used to join components without melting the base metal. Central to this operation is the aluminium brazing furnace, a specialized heating system designed for precision and efficiency.

Types of Aluminium Brazing Furnaces

There are several furnace types, each suited to specific applications:

Batch Furnaces

Ideal for varied production runs, these handle multiple parts in a single cycle, offering flexibility for different sizes and materials.

Continuous Furnaces

Perfect for high-volume manufacturing, they provide consistent heating with conveyor systems for uninterrupted processing.

Brazing Process Overview

The process involves heating assemblies to a specific temperature where filler metal flows into joints via capillary action. Key steps include cleaning, flux application (if needed), heating, and cooling.

Best Practices for Optimal Results

To achieve strong, leak-proof joints:

• Maintain precise temperature control to avoid overheating.
• Use high-quality filler materials compatible with aluminium.
• Ensure proper atmosphere control (e.g., nitrogen) to prevent oxidation.

Common Questions Answered

What temperatures are used?
Typically between 580°C to 620°C, depending on the alloy and filler.

How to choose the right furnace?
Consider production volume, part size, and required atmosphere.

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