The advantages of using resin sand casting bed casting

The advantages of using resin sand casting bed casting:

1, resin sand rigidity is good, pouring early sand strength is high, which is the condition of the use of cast iron solidification process of graphitization expansion, effectively eliminate the shrinkage \ shrinkage defects, to achieve gray cast iron \ ductile iron pieces of less riser Casting.

2, the real type of casting production using polystyrene foam appearance, the application of furan resin from the hard sand molding.When the molten metal poured into the mold, the foam looks like a high temperature metal liquid under the rapid gasification, combustion and disappear, metal Liquid to replace the original position occupied by the foam, cooling and solidification into the shape of the same shape with the casting.

The principle of selection of bed casting casting method is preferred. Sand casting is preferred. The main reason is that sand casting is less costly than other casting methods, the production process is simple and the production cycle is short. When the wet type can not meet the requirements and then consider the use of clay sand dry sand, dry sand or other sand. Casting methods should be adapted to the production batch, low pressure casting, die casting, centrifugal casting and other casting methods, because the price and the mold is expensive, it is only suitable for mass production, bed casting can be a single piece of casting can also be mass production.

The casting method of bed casting is generally made by EPC process, resin sand casting, solid casting, high grade casting, such as bed, column, beam, slide and so on. The

The casting method of bed casting

Bed casting casting method commonly used is sand casting, followed by special casting methods, such as: metal casting, investment casting, gypsum casting and so on. And sand casting can be divided into clay sand, organic binder sand, resin from the hard sand, lost mold and so on.