PROCESS FOR PRODUCING A LOW ALLOY WHITE CAST IRON AND PRODUCT RESULTING THEREFROM

摘要

Abstract of the DisclosureA process for producing a low alloy white castiron is disclosed. The process comprises the steps ofmelting an alloy consisting essentially of about 2.5 to4.0% 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 balancebeing iron except for incidental impurities commonly foundin cast irons; casting such alloy into moulds to producethe desired product; removing the product from the mouldswhile its surface temperature is above the transformationtemperature of the alloy; and cooling it by quenching intoa liquid medium containing water and an organic polymer ata sufficiently high rate to prevent the formation ofpearlite but not so high as to generate cracks in theproduct.