Process for producing a low alloy white cast iron and...

C - Chemistry – Metallurgy – 21 – D

Patent

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148/11, 148/48.2

C21D 5/04 (2006.01) C21D 8/00 (2006.01) C22C 37/08 (2006.01)

Patent

CA 1283030

Abstract of the Disclosure A process for producing a low alloy white cast iron is disclosed. The process comprises the steps of melting an alloy consisting essentially of about 2.5 to 4.0% carbon, 0.3 to 0.8% silicon, 0.3 to 0.8% manganese, 0.75 to 2.0% nickel and O to 0.75% chromium, the balance being iron except for incidental impurities commonly found in cast irons; casting such alloy into moulds to produce the desired product; removing the product from the moulds while its surface temperature is above the transformation temperature of the alloy; and cooling it by quenching into a liquid medium containing water and an organic polymer at a sufficiently high rate to prevent the formation of pearlite but not so high as to generate cracks in the product.

511175

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