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Gravity casting machine, casting considerations - cooling Casting machinery equipment factory

by:BoQiao Machinery     2021-01-29
Gravity casting machine to produce castings using range is very wide, for casting process is very much also, the performance of different according to different casting factory need, its processing method is different also, but the casting cooling process is one of the indispensable process. Do you know in the process of casting for cooling need to pay attention to what? Before casting for cooling, to look at the temperature of each part of the casting are the same, if the temperature is the same, the cooling process will not lead to deformation of castings, etc. If the temperature difference is bigger, the parts of the casting castings in the process of continuous cooling and thick wall partial seizure phase change and increase the volume, because is in elastic state, thin wall part will be the inner elastic stretching, and constitute a tensile stress. And the thick wall part is the outer elastic tightening of compressive stress. The result is that the cooling process led to the gravity casting machine to produce castings of wall thickness is uneven, and even the whole quality of castings appear problem, so the castings in carries on the cooling process, the necessary to pay attention to the temperature of cooling when casting parts are the same, whether there is a larger temperature difference, avoid the cooling process affects the quality of castings.
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