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Unveiling the World of Foundry Sand: Plymouth Foundry’s Overview

Unveiling the World of Foundry Sand: Plymouth Foundry’s Overview

Foundry sand, a cornerstone of metalcasting, is brought into focus. This essential material is no ordinary sand; it’s a high-quality silica sand with uniform physical attributes. Its journey is intertwined with the annals of the ferrous and nonferrous metal casting industry, where it has played a pivotal role for centuries due to its exceptional engineering properties.

In the modern realm of foundry practices, sand doesn’t meet its end after a single use; instead, it embarks on a recycling journey, serving through multiple production cycles. Astonishingly, the industry consumes a staggering 100 million tons of sand annually. Out of this colossal quantity, an estimated four (4) to seven (7) million tons find themselves cast aside, waiting to be reincarnated into other industries and products.

The sands of foundries are of impeccable quality, often sourced from members of the Industrial Minerals Association of North America (IMA-NA). These sands adhere to stringent physical and chemical standards, a crucial factor in preventing casting defects. Foundries and sand producers invest significant resources in quality control, subjecting their sands to extensive testing to maintain consistency. The outcome? Foundry sand from a single facility boasts remarkable compositional consistency, a boon for various applications.

While other casting methods like die casting, investment casting, and permanent mold casting exist, sand casting reigns supreme. Sand plays a dual role in metalcasting: as a molding material, it shapes the external form of cast parts, and as cores, it crafts internal void spaces, such as those within engine blocks. Since sand grains don’t naturally stick together, binders enter the scene, coaxing the sand to unite and maintain its shape during the pouring of molten metal into the mold and the ensuing cooling process.

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Article with all rights reserved, courtesy of afsinc.org