9. Recycling molding materials
Sand casting generally requires the use of more sand than liquid metal, with the ratio of sand to liquid metal varying from 1 to 15.
There is therefore an obvious interest in recycling molding materials as much as possible: firstly, economically, as the purchase and transportation of sand represent major expense items, and secondly, ecologically, as the disposal of used sand is subject to ever greater constraints
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Recycling molding materials
Industrial hazards. Health and safety
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