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Aging treatment purpose and method of axial flow fan castings
- Nov 30, 2018 -

The axial flow fan is a positive displacement blower. It is mainly composed of gears, impellers, casings and other components. It uses two leaf rotors to make relative motion in the cylinder to compress and transport the gas rotary compressor. If the axial flow fan castingss are placed at room temperature or under natural conditions for a long time, the aging phenomenon is called natural aging treatment.


In order to eliminate the change of the size and shape of the axial flow fan castingss in long-term use, the workpiece is reheated to 100-150 ° C for 5-20 hours before finishing after low temperature tempering. This is a stable precision part. The treatment of quality is called aging. It is especially important to aging the steel components under low temperature or dynamic load conditions to eliminate residual stress and stabilize the steel structure and size.


The vibration aging treatment applies a certain frequency of vibration to the workpiece to release the internal stress without heating or time-consuming as in natural aging, thereby achieving the purpose of aging. The purpose of aging treatment is to eliminate the internal stress of the workpiece, stabilize the structure and size, and improve the mechanical properties.


The aging treatment of the axial flow fan castingss is artificial aging treatment. The root treatment of the Roots blower is treated by solution treatment, cold plastic deformation or casting. After forging, it is placed in a higher temperature electric furnace. Its performance, shape and size are Time-varying heat treatment process. If the workpiece is heated to a higher temperature and the aging treatment process is performed in a shorter time, the treatment is performed.