"Lost Core" from Bühler

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The "Lost Core" technology opens up diverse opportunities. With this technology certain parts of the component to be cast are recessed with a salt core which is then rinsed out again. This makes it possible for permanent mold cast and sand cast components to be replaced and at the same time the full benefits of die casting such as material savings, shorter cycle times and reduced post-processing can be reaped. "Lost Core" also enables the development of completely new components.

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Ask the Experts

Q Please explain the Free Radical Cure (FRC) process of core making?

A The FRC is a process that has some unique attributes. A significant one is that epoxy acrylic binders (at ASK Chemicals we call it “ISOSET”) achieve an unlimited life for the sand mixture. As with many other cold box processes, the reaction between the part A and part B binder begins when the two are mixed....Read Full Answer

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