Metal Casting Zone Info Blog

Posts Tagged ‘sand core’

This was an experiment to see if carbon dioxide produced with vinegar and bicarbonated soda could be used to harden a sodium silicate sand core.
The result was a success and is a cheaper alternative to buying bottled CO2.

This will be a multi part video on foundry pattern making. A wooden pattern is used to make an impression in the mold. A sand core is inserted to produce the cylinder bore in the casting.