Sand casting is a process that utilizes non-reusable sand molds to form metal castings. On one hand, casting is a deceptively simple manufacturing process: anyone who has formed castles at the beach knows sand can be used to make detailed shapes. However in a foundry, dealing with the heat of molten metal, many factors must be

The quality of the sand that is used also greatly affects the quality of the casting and is usually described by the following five measures: Strength – Ability of the sand to maintain its shape. Permeability – Ability to allow venting of trapped gasses through the sand. A higher permeability can reduce the porosity of

Ceramic Foundry sand is made from high quality bauxite, by re-fused and blown to ball type. With advantage of fine surface smooth finish and air permeability, it is a new type casting material for precision casting, coated sand and self hardening sand etc. Chemical and Physical Composition: Main Chemical Composition: Al2O3≥75% Fe2O3≤5% TiO2 ≤5% SiO2:5%-20% Physical

Chromite sand is used as a highly fireproof sharpener for moulds and cores. Originally from South Africa . The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.

Chromite sand is used as a highly fireproof sharpener for moulds and cores. Originally from South Africa . The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size. Item Unit Index Cr2O3 % 46.0min SiO2 % 1.0max FeO % 26.5max