The Moulding sand is also known as foundries sand, this sand is commonly used for making moulds. Natural sand located on the bed and banks of rivers gives a larger source, although high-quality silica sand is also mined.
The sand is chemically Si02, silicon dioxide in a granular manner. Ordinary river sand contains a percentage of clay, moisture, non-metallic impurities and traces of magnesium and calcium salts besides silica grains. After appropriate treatment, this sand is used to make a mould.
Types of Moulding Sand
Following are the 8 different types of moulding sands:
In green sand, It is slightly wet when squeezed by hand. It has the ability to maintain the shape and impression given to it under the pressure. The green sand can be easily available and it has a low cost. The mould that is prepared in this sand is called green sand mould. It is commonly used for the production of ferrous and non-ferrous castings.
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