Introduction of brazing aluminum sheet metalFor brazing aluminum sheet metal, aluminum-based alloys are used as a kind of brazing filler metal. The melting point is above 450°C. The brazing temperature is usually 25°C-60°C higher than the liquidus temperature of the filler metal to ensure that the filler metal can fill the gap...

Introduction of brazing aluminum sheet metal

For brazing aluminum sheet metal, aluminum-based alloys are used as a kind of brazing filler metal. The melting point is above 450°C. The brazing temperature is usually 25°C-60°C higher than the liquidus temperature of the filler metal to ensure that the filler metal can fill the gap. The load-carrying capacity of brazed joints is related to the size of the joint surface. Therefore, lap joints and kits are generally used for brazing to make up for the lack of brazing strength.

The joint strength of the brazing aluminum sheet metal is high, the heat resistance is good, and it can work at high temperature.

Brazing aluminum sheet metal mainly include 3 series and 4 series products, such as 3003, 3103, 4004 and other aluminum sheets. The product is beautiful and flat, with bright color and no cracks on the surface. It can ensure seamless welding during welding, and has good fluidity and no bubbles during welding.

Advantages of brazing aluminum sheet metal:

1. High strength and excellent welding performance.
2. Good heat and high temperature resistance performance and certain corrosion resistance.
3. Excellent processing performance, small changes in structure and mechanical properties, small deformation, and easy molding.
4. The product is beautiful, and the welding has no pores, cracks, welding bumps, etc., the surface of the weld joint is bright, and the fillet is uniform.

Application field of brazing aluminum sheet metal：

Commonly used in oxygen production equipment and radiators for the automotive industry.