Description

Products Description

Aluminum impeller castings are impeller parts made of aluminum alloy materials through casting processes. Its main function is to generate centrifugal force through rotation to achieve the transportation, pressurization or acceleration of liquid or gas. It is widely used in centrifugal pumps, fans, compressors and other equipment.

Products Description

Lightweight
The density of aluminum alloy is about 2.7 g/cm³, which is only one-third of steel (7.8 g/cm³). Taking an impeller with a diameter of 200 mm as an example, the weight can be reduced by about 2.5 kg after being made of aluminum alloy. This weight reduction design can reduce the starting power of the equipment by about 15%-20%, thereby saving energy consumption, making the aluminum impeller casting widely used in centrifugal pumps and fans.

Strong Corrosion Resistance
The annual corrosion rate of aluminum alloy in salt spray environment is less than 0.05 mm, while the corrosion rate of carbon steel can be as high as 0.2 mm or even higher. In highly corrosive environments such as oceans and chemical industries, the average maintenance interval of equipment using aluminum impeller castings can reach more than 10 years, while the maintenance interval of traditional carbon steel impellers is usually less than 5 years.

High Strength
The tensile strength of aluminum impeller castings can reach more than 350 MPa, and the yield strength can reach 200 MPa. High tensile strength and high yield strength ensure that the impeller can rotate at high speed and high pressure without breaking or deforming. For example, the service life of aluminum impeller castings exceeds 50,000 hours at a continuous speed of 4000 rpm, which is much higher than the life of impellers made of traditional materials.

Good thermal conductivity
The thermal conductivity of aluminum alloy is 150-200 W/m·K, which is nearly 10 times higher than that of stainless steel (about 15-20 W/m·K). The advantage of high thermal conductivity is that aluminum impeller castings can quickly transfer the heat generated by friction and compression when running at high speed, reducing the temperature of the equipment by 20%-30%, and preventing material softening or structural deformation caused by overheating.