What Materials Are Used in Sand Casting?
Sand casting involves several key materials that contribute to its effectiveness and versatility. Understanding these materials helps in optimising the casting process and achieving high-quality results.
Core Materials for Mould Creation
The primary material used in sand casting is the sand itself, which is mixed with binders like clay and water to create a stable mould. The sand must have the right properties, such as permeability and cohesion, to support the molten metal and form the desired shape. Silica sand is commonly used due to its high melting point and good thermal conductivity.
Additionally, additives such as sodium bentonite or resin may be incorporated to enhance the mould's strength and durability. At Alliance Connect, we select and prepare high-quality sand mixtures to ensure optimal mould performance and casting accuracy.
Materials for Casting and Finishing
The choice of metal for casting is also crucial in sand casting. Commonly used metals include aluminium, cast iron, and bronze, each offering different properties suitable for various applications. Aluminium is favoured for its lightweight and corrosion-resistant characteristics, while cast iron is valued for its strength and machinability.
Bronze is chosen for its high wear resistance and durability. After casting, the parts may require finishing processes such as machining or surface treatment to meet specific design requirements. At Alliance Connect, we carefully select and manage these materials to deliver castings that meet the highest standards of quality and performance for our clients.