What Are Castings?

What Are Castings?

Castings are metal forming objects obtained by various casting methods, that is, the smelting of liquid metal, by pouring, injection, inhalation or other casting methods into the pre-prepared casting, cooling after grinding and other subsequent processing means, obtained with a certain shape, size and performance of the object.

Casting applications have a long history. Ancient people used castings and some utensils for living. In modern times, castings are mainly used as blanks for machine parts, and some precision castings can also be used directly as machine parts. 

Casting occupies a large proportion in mechanical products, such as tractors, casting weight accounts for about 50 ~ 70% of the weight of the whole machine, agricultural machinery accounts for 40 ~ 70%, machine tools, internal combustion engines, etc., up to 70 ~ 90%. Among all kinds OF castings, mechanical castings HAVE THE largest variety, the most complex shape and the largest dosage, accounting for about 60% of the total production of castings. This is followed by metallurgical ingot molds and engineering pipes, as well as some tools in life.