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What is the difference between the action of the chillers and riser

What is the difference between the action of the chillers and riser

2019-09-25

Thick wall in casting and hot area (namely the heat concentrated on castings, inscribed circle diameter larger part) set up the riser, is an effective measure to prevent the shrinkage cavity, shrinkage porosity, the size of the riser should guarantee the part of the riser feeding than it late, solidification and sufficient supply of liquid metal. The "directional solidification principle", built on the casting from a far away from the riser to gradually increasing temperature gradient between riser, so as to realize the away from riser to riser direction solidification sequence, away from the part of the riser first solidification, close to the part of the riser after solidification, the final solidification riser itself,

No. Chiller is a metal quench placed in the mold to increase the cooling rate of a part of the casting.


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