Coal-fired furnaces in the foundry were heated to the extremely high temperatures — over 1500°C — needed to melt steel. Molten steel was then poured by hand into prepared sand moulds. Once the steel had hardened, workers split open the moulds to remove the castings.
Filling a mould with molten steel, 1925
Factory to Farm: Making Agricultural Implements in Australia, about 1925. National Film and Sound Archive of Australia
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