摘要
Compositions and methods o f use thereof in sandcasting Compositions useful for foundry processes such as green sandcasting are provided.The present disclosure includes compositions useful in sandeasting,preparation of such compositions,and methods of use thereof.The compositions herein include binder compositions and green sand compositions that may be used to prepare a sand mold for casting.The compositions may comprise ball clay,bentonite,and a carbonaceous material.The ball day may comprise from about 15%to about 35%alumina by weight with respect to the total weight of the ball clay and/or from about 30%to about 60%silica by weight with respect to the total weight of the ball day.In some aspects,the ball clay may have a loss on ignition(LOI)ranging from about 12%to about 50%.
