Introduction to Baozhu Sand

Key Technical Parameters

Core Features & Advantages

1. Exceptional Heat Resistance

• Withstands molten metal temperatures up to 1800°C, ideal for high-alloy casting without deformation or degradation.

2. Low Thermal Expansion

• Minimizes thermal stress during cooling, reducing cracks and dimensional inaccuracies in castings.

3. Spherical Geometry

• Smooth, round particles improve mold filling, reduce friction, and enable intricate geometries in precision casting.

4. High Reusability

• Can be recycled repeatedly without significant loss of performance, lowering waste and operational costs.

5. Chemical Inertness

• Resists reactions with molten metals, preventing sand adhesion (veining) and ensuring smooth casting surfaces.

6. Versatility

• Compatible with multiple casting processes: resin sand, water glass sand, investment casting, and 3D printing (e.g., SLS, binder jetting).

Application Scenarios

• Precision Investment Casting

• Used in aerospace components (turbine blades), medical devices, and automotive parts for high surface finish and dimensional accuracy.

• Sand Casting

• Ideal for large steel, iron, and aluminum castings, reducing defects in complex molds.

• 3D Printing for Foundry

• Mixed with resins for 3D-printed sand molds, enabling rapid prototyping and customized casting solutions.

• Surface Treatment

• As a blasting media for deburring, cleaning, and surface finishing of metal parts.

• Industrial Refractories

• Used in kilns and furnaces for thermal insulation and high-temperature resistance.