Casting is a relatively early humans to grasp a metal thermal processing, about 6000 years old. China has entered about BC bronze casting heyday between 1700 and before 1000, the technology has reached a very high level. Casting refers to a liquid at room temperature but will soon be cured material is poured into the mold until their specific shape forming solidification processing methods. Multi-cast material is in a solid state, but the original metal is heated to a liquid form (for example: copper, iron, aluminum, tin, lead), and the mold material may be sand, metal or ceramics. In response to the different requirements, the methods used will vary.
