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Casting is a working process that pours the melting metal liquid into the mold and gets the needed shape and properties of the partsparts by cooling and solidification. Casting is a common manufacturing methods.

The general rules of blasting is used to shape, such as several thrown together around the head, high efficiency and low pollution. Shipbuilding, shot blasting, sand blasting is widely used.

Casting products occupy a large ratio in various auto parts. There are various kinds of casting products such as automotive engine block, cylinder head, gearbox housing, intake manifold, exhaust manifold, crankshaft, camshaft, piston, and wheel hub.

The control for inclusion defects is more strict for casting of harsh working conditions, for example, automobile castings,engine castings,wind power castings,the steam turbine castings and machine tool castings.

Sodium Silicate Process is the casting process of less cutting or no cutting,it's the best one in investment casting;The made castings of the sodium silicate process reach high dimension tolerance and high surface roughness.