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Aging treatment of fan castings for chemical industry
- Oct 26, 2018 -

Fan castings for chemical industry are developing rapidly. In the casting process, in order to eliminate the changes in the size and shape of precision gauges or molds and parts during long-term use, they are often used after low-temperature tempering (low-temperature tempering temperature 150-250 °C). Reheat the workpiece to 100-150 ° C for 5-20 hours. This process for stabilizing the quality of precision parts is called aging.

 

Aging treatment is very important for stabilizing the organization and size of fan castings used in the chemical industry. The steel members under low temperature or dynamic load conditions are usually aged to eliminate residual stress. 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 fan castings used in the chemical industry mainly include gears, impellers, casings and other components. The aging treatment for the fan castings is artificial aging treatment, the castings are solution treated, cold plastic deformation or casting, and after forging, the furnace is operated at a higher temperature. A heat treatment process in which the performance, shape, and size change over time. If the workpiece is heated to a higher temperature and the aging treatment process is performed in a shorter time, the treatment is performed.

 

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