What is Foundry sand ?
Foundry sand refers to a high-quality silica sand that is used to make molds and cores for metal casting in foundries. It is a specially prepared sand that is used as a molding material in the metal casting process to create intricate and complex metal parts. Foundry sand is typically composed of high-quality silica sand, along with a mixture of clay and moisture, which helps it to retain its shape during the casting process.
Foundry sand is utilized in various casting processes, such as green sand casting, resin-coated sand casting, and shell molding, among others. It is used to create molds into which molten metal is poured to create various metal components and parts. Foundry sand needs to have specific properties, such as high refractoriness, good collapsibility, and the ability to withstand high temperatures, to ensure the successful casting of intricate metal shapes.
After the casting process, foundry sand can be reclaimed and reused, making it a sustainable and cost-effective material in the metal casting industry. However, some used foundry sand may be designated for alternative applications, such as in construction or in the manufacturing of concrete and other building materials.