• Download
  • Sitemap

Zhaoqing OLYM Metal Products Co.,Ltd

Contacts Info.
Yongan Town,Dinghu district Zhaoqing City,Guangdong Province,China

lost wax casting have it's distinctive advantage

Metal casting process begins by creating a mold, which is the ‘reverse’ shape of the part we need. The mold is made from a refractory material, for example, sand. The metal is heated in an oven until it melts, and the molten metal is poured into the mould cavity. The liquid takes the shape of cavity, which is the shape of the part. It is cooled until it solidifies. Finally, the solidified metal part is removed from the mould. 
A large number of metal components in designs we use every day are made by casting. The reasons for this include: 
(a) Casting can produce very complex geometry parts with internal cavities and hollow sections.
(b) It can be used to make small (few hundred grams) to very large size parts (thousands of kilograms)
(c) It is economical, with very little wastage: the extra metal in each casting is re-melted and re-used
(d) Cast metal is isotropic – it has the same physical/mechanical properties along any direction. 
Common examples: door handles, locks, the outer casing or housing for motors, pumps, etc., wheels of many cars. Casting is also heavily used in the toy industry to make parts, e.g. toy cars, planes, and so on. 
lost wax casting (investment casting)have it's distinctive advantage among metal casting process .
Investment casting (lost wax process) This is an old process, and has been used since ancient times to make jewellery – therefore it is of great importance to China. It is also used to make other small (few grams, though it can be used for parts up to 25 kilograms). The steps of this process are shown in the figure  below. An advantage of this process is that the wax can carry very fine details – so the process not only gives good dimensional tolerances, but also excellent surface finish; in fact, almost any surface texture as well as logos etc. can be reproduced with very high level of detail.