Shallow analyse foundry technologyNicety is cast is decide metallic fusion the liquid of the requirement into accord with syncretic and irrigate into casting mould, book the process of the cast of appearance, dimension and function via getting having after cooling and caky, clear whole processing. Because of,cast semifinished product close to figuration, and achieve avoid machining or time reduced on certain level. Casting is contemporary one of fundamental craft of production industry. Nicety is cast is the method of semifinished product figuration that contrasts economy, complex to appearance part can show its economy more. If the cylinder body of car engine and crock are built, shipping airscrew and delicate artwork. Some hard the spare parts of cutting, like what light turbine spare parts of nickel radical alloy need not cast a method cannot figuration. Additional, the accommodation of cast spare parts dimension and weight is very wide, metallic sort accepts restriction scarcely; The spare parts is in have general and mechanical property while, still have wear-resisting, anti-corrosive, suck the integral performance such as shake, be like,be method of other metal figuration forge, make friends, solder, strong impracticable waiting for place. Because this uses the semifinished product part that casts methodological production in the machine building, go up in amount and tonnage heretofore still is most.