The Superiority of Zircon Sand in Precision Manufacturing

Release time:

2021-09-28

Author:

Precious‑pearl sand has also evolved into fused ceramic sand, with high‑grade bauxite as its raw material, produced by melting in an electric arc furnace. It boasts a wide range of applications, suitable for investment casting, full‑mold casting, lost‑foam casting, and other casting processes. As a next‑generation foundry sand, it is ideal for precision casting and coated‑sand operations, and is also used for shot peening of aluminum, copper, and steel castings.

　　Precious‑pearl sand has also evolved into fused ceramic sand, manufactured from high‑grade bauxite through arc‑furnace melting. It boasts a wide range of applications, suitable for investment casting, full‑mold casting, lost‑foam casting, and other casting processes. As a next‑generation refractory sand for precision casting and coated‑sand systems, it is also employed in shot peening operations for aluminum, copper, and steel castings.

　　Baozhu sand offers superior cost-effectiveness compared to zircon sand and chromite sand. It features a low thermal expansion coefficient, does not sinter, does not pulverize, does not crack, and does not cause sand sticking; moreover, it exhibits excellent recyclability, making its advantages particularly pronounced.

　　1. With a lower coefficient of thermal expansion, molding sand formulated from this material does not give rise to expansion-related defects in castings; its performance can even rival that of zircon sand.

　　2. Spherical sand grains exhibit excellent flowability, are easy to compact, and possess good permeability.

　　3. It has a smooth surface and a dense structure, allowing the binder to coat the surface evenly.

　　4. As a neutral material, zircon sand is suitable for use with both acidic and alkaline binders.

　　5. It is recyclable and reusable, offering high cost-effectiveness.

　　The price of zircon sand is only 30–50% of that of zirconium sand and chromite sand. As a spherical abrasive grain with a small surface area, it allows for a 30–50% reduction in resin usage, and the sodium silicate addition can be kept below 4%. Moreover, it helps improve the yield of finished castings.

　　Baozhu sand has a wide range of applications, including sodium silicate sand, resin sand, precision casting, and the polishing and cleaning of copper and aluminum parts, among others.

Keywords:

With raw material prices rising, how should abrasive and grinding tool companies respond?

As an essential component of coated abrasive tools, sand rolls are widely used in the market.