Casting processes - Airset Chemically Bonded Sand

 In the Airset Chemically Bonded Sand process, sand moulds are created using a wood, metal, or plastic pattern. Sand is mixed with a binder and hardener in a high-speed mixer. This sand is deposited into a box containing the pattern and all essential gating, risers and chills for pouring. This sand mixture sets hard in a few minutes and the mould is removed from the pattern. Cores for forming internal passages in the castings may be made using the same process. The moulds are then closed and are ready for pouring.