The materials Used for Sand Casting Molds
Here are the materials commonly used for sand casting molds, explained: Base Sand (The Bulk Material): Silica Sand (SiO₂): The most widely used and economical base material. It has good refractoriness (resistance to high temperatures), availability, and low cost. Grain size and shape significantly impact mold permeability and surface finish. Chromite Sand (FeCr₂O₄): Used for its high […]
Hot‑Dip Galvanizing (HDG)
This method dips the iron or steel into molten zinc, which bonds with the surface and forms a protective layer. It involves the following steps: Cleaning: This is to remove all forms of oil and dirt with a caustic solution. Pickling: This next step involves putting the metal into acid to remove rust. […]
