Core Mixture

Core Mixture

 

any of the mixtures of quartz sand, binders, and catalysts used in making cores and other shapes for molds, for example, pouring basins and filtering gauze. Other refractory fillers are sometimes used in place of the quartz sand. Highly refractory additives, such as chromite, chromite-magnesite, zircon, and graphite, are introduced into the mixtures. The mixtures, which may be moist, dry, or liquid, are hardened in core ovens and in coreboxes, which may or may not be heated.

REFERENCE

Stepanov, Iu. A., and V. I. Semenov. Formovochnye materialy. Moscow, 1969.
References in periodicals archive ?
The core mixture with the blowing agent is injected from a second injection unit into the coinjection manifold.
Pouring delays, insufficient or inefficient inoculation, a poorly prepared coke bed, or inattention to core mixtures are among some common foundry errors that can be avoided by following good production and quality control practices.