Description: BCS Heat Set Core Sand is a foundry sand mixed with a heat setting polymer oil. The oil hardens the sand with baking into a strong, solid mass for use as a core in foundry castings. The kit contains a pint can of core oil (14 Ounces by Weight) and 17-1/2 Lbs of Foundry Sand.
The sand core positioning in the mold, the de-coring, and the machining become critical phases of the production cycle, especially due to the very high volumes. The de-coring (and finishing) of the casting is so assigned to an automatic isle, as well as the after-machining finishing phase.
Expert Cores of Wisconsin has been an integral link in our customer’s silica sand core supply chain strategy since March of 1996. Our origins grew out of a need expressed by the ferrous and non-ferrous foundry industries for a competitively priced, rapid response, silica sand core supplier in the mid-west.
Core Tech, Inc. is a shell core production facility. Cores are primarily used by metal casting facilities (mostly foundries) to lighten or create internal shape and passageways through castings. Our customers and their needs come first. As a Core Tech customer, your foundry will not have to shut down for lack of sand cores.
May 03, 2010· Sand, when mixed with the correct ratio of sodium silicate, rammed into a core box, and then exposed to carbon dioxide (CO 2), will result in a very hard and durable sand core.Never having used sodium silicate (and never having made sand cores before!), this was an excellent lesson in learning what works and what doesn't.
Sand core making is the process that forms the interior part of the casting. The mold provides a space for the molten metal to go, while the core keeps the metal from filling the space. We specialise in producing complex cores for small and large castings, for a wide range of applications.
Dry-sand cores. The simplest way to make a dry-sand cores is in a dump core box, in which sand is packed into the box and scraped level with the top. A wood or metal plate is then placed over the box, and then the two are flipped over and the core segment falls out of the core box.
Shell cores are made using a resin-coated sand that is blown into heated core machines. The cores cure and become rigid due to the reaction between the resin and heat. The cores are yellow in color and the hollow shell that forms the core gives it its name.
Sand Core and Mold Drying Ovens The refractory wash is a water or solvent based liquid, magnesite talc or graphite solid. The wash is applied to the mold, providing a better surface finish on the casting and protecting the sand mold from the heat as it enters the mold cavity.
The core stretches across the casting cavity and is fitted into core print sockets that extend over the edge of the cavity. The fit into the core print will allow for the stabilization of the core, which will in turn, allow for creation the passage desired for the casting.
With an on-demand sand management system, a printhead offering precise dosing of the binding agent, and capabilities for complex internal details. The process produces accurate, uniform cores and molds rapidly, significantly reducing lead time. if you can design it, we can build it.