Dry Sand Moulding:

Large components are very hard to cast to exact dimensions and size. Therefore, some foundries utilize dry sand moulds to generate such parts. Dry sand moulding is the green sand procedure modified by baking the mould at prescribed temperature. Engine blocks, big housings, large gears, construction parts, are instance of dry sand procedure candidates. Ferrous and non-ferrous metals are cast in this method. The key to this procedure is the appropriate baking time in relation to the binder and the moisture content. The other factors are the weight, size and mass of the component being cast. Some good examples of the profitability of the process are the great strength of the part cast, accuracy in dimension, much smoother finish, etc. Some of the instances of dry sand moulding are transmission housings, engine blocks, big gear boxes, etc.