Ceramsite sand is high grade green casting material, made of high Alumina Calcined Bauxite, processed through fusing, spraying, sieving, get rid of impurity and special procedures. With ideal spherical shape, excellent fluidity and filling property, Ceramsite sand is widely used in various sizes of steel/iron/alloy casting parts. It is suitable for various bonds of casting mold and can meet different needs of various customers.
Specification (Size):
AFS20/AFS30/AFS40/AFS50/AFS55/AFS65/AFS75/AFS90/AFS100
Special grades can be customized.
Shape:
Spherical Shape
Color:
Grey black
Performance/ Advantage:
Ceramic sand, often referred to as high-temperature ceramics or refractory sand, is used primarily in the foundry industry for its excellent heat resistance and dimensional stability at high temperatures.
Ceramic sand is processed to have uniform grain sizes and shapes, which helps in creating more precise molds and cores with better surface finish on the final metal castings. The sand is mixed with binders and sometimes with additives to improve its performance under high temperatures and to facilitate the removal of the mold after casting.
As the shape is spherical with high density, ceramsite sand have excellent fluidity and filling character.
The surface of ceramsite sand is glazed and compact，it can be evenly covered by the bond such greatly reduce the resin consumption.
With higher content of mullite phase than sintered sand, ceramsite sand is featured with high refractoriness.
Very low thermal expansion ensures fewer or no casting defects.
Each single bead has high strength and is not easily broken, the adhesive on its surface can easily fall off during regeneration. The ceramsite sand produced can be recycled many times and can basically be reused 8 to 10 times, greatly reducing casting costs.
Dry environment: Ceramic beads should be stored in a dry, well-ventilated environment to avoid moisture absorption. Humidity may cause caking or contamination on the surface of the beads, affecting their fluidity and dispersion in the application.
Temperature control: Although ceramic materials are generally well tolerant to temperature changes, extreme temperatures may affect packaging materials or cause internal pressure changes. The ideal storage temperature should be within the range recommended by the manufacturer.
Dust prevention measures: Keep the storage area clean to reduce the contact with dust and other impurities to avoid contaminating the ceramic beads, which may affect their purity and use effect.
Avoid direct sunlight: Long-term direct sunlight may cause the packaging materials to age or deteriorate, which in turn affects the quality of the ceramic beads.
Away from chemicals: The storage location should be away from any chemicals or other substances that may release harmful gases to prevent cross contamination.
Regular inspection: Regularly check the inventory to ensure that there are no products that have exceeded the shelf life and that the storage conditions meet the requirements.
Ceramsite Sand is a versatile material widely used across various industries due to its unique properties, such as high strength, low density, and excellent thermal and chemical resistance. Foundry Spherical Sand 's unique properties make it a highly adaptable material with applications across various industries, from construction and water treatment to agriculture and environmental protection. Its combination of lightweight, high strength, and thermal resistance ensures it meets the demands of a wide range of industrial and commercial uses.
For more information, please contact us. We will provide professional answers.
Technical Index:
Chemical Composition: Al2O3 ≥70%,73%,75% Fe2O3 3%max SiO2 15-25% TiO2 3-5%
General Characteristic:
| PH | 7-8 |
| Bulk Density g/cm3 | 1.9-2.1 |
| Ig. Loss (%) | -0.05 |
| Acid Consumption(ml/50g) | 3max |
| Refractoriness | SK35min1770° Cmin |
| Thermal expansion(1000OC) (%) | 0.63 |
Application:
Furan Resin Molding: Ceramic beads are used as refractory aggregates in furan resin molding to enhance the strength and heat resistance of the mold.
Alkali-phenol Resin Molding: Ceramic beads provide the necessary fire resistance and thermal shock resistance during alkali-phenol resin molding.
Hot-Harden Casting Mold: Hot-hardened casting molds utilize ceramic beads to ensure high precision and surface finish of the casting.
RCS (Rapid Cure System) Molding: RCS Rapid Cure System Molding uses ceramic beads to accelerate the curing process and improve the durability of the mold.
Gas-harden Casting Mold: In gas-hardened casting molds, ceramic beads are hardened by gas to form a strong and high-temperature resistant mold structure.
Cold-box Molding: In the cold-box molding process, ceramic beads help create sand cores or molds with excellent mechanical properties and dimensional stability.
CO2 Molding: In the carbon dioxide molding process, ceramic beads react with CO2 to accelerate the curing speed and increase the hardness of the mold.
Lost Foam Casting: In lost wax casting, ceramic beads fill the space around the foam model, supporting the shape during sintering and promoting good metal flow.
3D Printing: In 3D printing applications, ceramic beads can be used as part of the powder material to directly manufacture complex refractory components or molds.
Refractory Coating: The addition of ceramic beads to refractory coatings can increase the wear resistance and thermal insulation properties of the coating, protecting casting molds from extreme temperatures.
Packing:
Paper bag( 25kgs) or Square Bulk Bag(1000kgs or 1200kg)
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