What is the difference between aluminum impeller and steel impeller? Such as weight, material, use effect and so on
The use of aluminum impeller and steel impeller is the same effect, generally depends on the use of the situation to determine what kind of impeller.1., the proportion of steel is 7.85, while the proportion of aluminum is about 2.7 (generally used aluminum alloy, pure aluminum for low strength, can not be used), the weight difference of nearly 3 times. Due to the light weight of the aluminum, the power consumption can be reduced correspondingly, and the energy-saving effect is achieved.The melting point of 2. steel is about 1500 degrees, and aluminium is 660 degrees. At high temperatures, the aluminum impeller can not be used.3. steel is easy to oxidize in air (not before corrosion treatment, such as zinc plating), and after oxidation of aluminum, the surface can form a dense oxide film, so that it can not continue to oxidize. The aluminum impeller is superior to the steel impeller in a slightly corrosive atmosphere.The strength of 4. steel is greater than that of aluminum. Because of the limitation of strength, the impeller of large fan is usually made of steel impeller.
An impeller is a disk with a moving blade and is part of the rotor of an impulse turbine. Also refers to the wheel and the installation of its rotating blades on the floorboard.
The use of aluminum impeller and steel impeller is the same effect, the proportion of steel is 7.85, while the proportion of aluminum is about 2.7 (generally used aluminum alloy, pure aluminum for low strength, can not be used), the weight difference of nearly 3 times. Due to the light weight of the aluminum, the power consumption can be reduced correspondingly, and the energy-saving effect is achieved.
