Aluminum Sand Casting

The Introduction : Sand Castings

Sand casting is used to make large parts, suitable for Aluminum alloy, Iron, Steel and Brass metal. There are two techniques: green sand casting and resin sand casting. The sand cast molds are same for the two ways, their difference is only sand. Green sand is for green sand casting process, which is the most common used by foundries; resin sand is for resin sand casting process or making cores.
·The "green sand" consists of mixtures of sand, clay and moisture.
·The "resin sand" consists of sand and synthetic binders cured thermally or chemically
·The cores used for forming the inside shape of hollow parts of the casting are

As usually, the material of sand casting moulds is wood, silica or aluminum alloy. If the aluminum part is small, the quantity is less and the structure of castings is easy, we make the casting parts by wood mold or silica mold, such as furniture components, architectural components; If the structure is complex, the aluminum product is very big, or the order will be continued several, we suggest to make the sand casting parts by aluminum alloy mold, such as engine blocks, cylinder heads, housing.