Foundry shell core and mold composition
An article by Albanese, J. "Shell Mixing Processes and Equipment", Transactions of the American Foundrymens' Society, pages 225-228, vol. 68 (1960), covers the use of novolak resin and hexamethylene tetramine in various types of shell coating processes. ... Another article by Less, F. W. "Sand Coating by the Hot Process--The Method and ...
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