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What is a foundry ladle made of?
Foundry ladles usually comprise of a mild steel shell with a refractory lining material. Effectively it is the refractory lining material that allows the foundry la…dle to be used with molten metal whilst the steel shell provides support for the refractory. Traditionally the refractory material used to be firebrick, fireclay or even rammed sand. However it is more common for foundries to now use special refractory concretes that have high insulation values and last longer. Examples can be seen at www.acetarc.co.uk Where small amounts of metal are to be cast foundries will sometimes use ceramic crucibles to hold the metal. (MORE)
