Aluminum brazing powder (aluminum based brazing material powder) is a welding material specifically used for brazing aluminum alloys and other metals. It has the characteristics of low melting point, corrosion resistance, and lightweight, and is widely used in the following fields:

1. Refrigeration and air conditioning industry

-Manufacturing of heat exchangers: brazed aluminum evaporators and condensers (such as aluminum tube aluminum fin connections for automotive air conditioners and household air conditioners).

-Compressor components: Sealing welding of aluminum alloy pipelines, requiring pressure resistance and resistance to refrigerant corrosion.

2. Automobiles and Transportation

-Automotive radiator: brazing of aluminum water tank and intercooler (commonly used Al Si brazing materials, such as 4047 alloy).

-New energy vehicles: aluminum alloy lightweight connections for battery cooling plates and motor housings.

-Aerospace: Vacuum brazing of aircraft fuel pipes and lightweight structural components (requiring high-purity brazing materials).

3. Electronic and power equipment

-Power electronic heat sink: brazed aluminum based heat sink and power devices (such as IGBT modules).

-LED lighting: Welding of heat dissipation components for aluminum based circuit boards.

4. Home appliances and kitchenware

-Manufacturing of cookware: composite bottom brazing of non stick pans and aluminum cookware (such as aluminum stainless steel dissimilar metal connections).

-Refrigerator piping: connection between aluminum alloy capillary tube and condenser.

5. Energy and Environmental Protection

-Solar collector: brazing of aluminum tube and heat absorbing plate (with high weather resistance requirements).

-Heat pump system: corrosion-resistant welding of aluminum heat exchangers.

6. Hardware and Architecture

-Aluminum door and window frame: Non deformable brazing of complex structures.

-Decorative components: precision welding of aluminum handicrafts and lighting fixtures.

Key features and advantages

-Low melting point: The melting point of Al Si brazing material is about 580-620 ℃, which is suitable for brazing temperature of aluminum alloy.

-Lightweight: Matching with aluminum alloy substrate to avoid weight gain in welded joints.

-Corrosion resistance: The brazed joint has good electrochemical compatibility with the base material.