CASTING QUALITY AND DIMENSIONAL ACCURACY USING A RESIN BONDED AIRSET-SAND SYSTEM

19770764
Journal: The British Foundryman (June 1977) p. 168-180, 13 pages
Author: B. E. Cooke and H. R. Doig

This paper illustrate 13 years experience of using a resin bonded airset sand and show the basic method of approach to making castings with two major aims in view: 1) Casting quality and surface finish. 2) Dimensional accuracy and consistency. The paper is presented under the following headings: 1) the process 2) Pattern equipment 3) Molding techniques 4) Coremaking techniques 5) Core breakdown 6) The process in practice. An attempt is made to illustrate step by step how a chemically-bonded sand system has been adapted for use in one particular foundry and an example of the results which can be achieved by reference to one particular casting.