Foundry ground is a land that is used in a foundry for the preparation of transitional shapes, that is to say, the containers that cast cast metal for casting.
It consists of a natural or synthetic mixture of silica sand, agglomerant (clay, bentonite, cement, sodium or ethyl silicate, resin, linen oil, tar, molasses, etc.) and water.
The characteristics of a land are:
The lands must meet the requirements:
Foundry ground is very used in industries, because it is not very costly processing
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