Posted to Metalworking World Magazine Jan. 16, 2017
There are several different types and formulations for release agents used in the cold box process. In highly stressed areas of the core box, traditional release agents do not function well. A new resistant release coating based on novel technology that adheres to the core box has been developed and introduced into foundry production to combat resin wipe-off. Trials were run, monitoring the number of cycles before the release coating needed to be re-applied. Data is presented from the trials. The testing shows the coating to be effective up to several hundred or even thousands of cycles between applications.
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