What is precision casting?
Investment casting, shell mould casting, metal mould casting, lost foam casting, magnetic mould casting, pressure casting, low pressure casting are all precision casting. Features: higher casting accuracy can be obtained.
Precision casting is also called lost wax casting. Its products are precise, complex and close to the final shape of parts. It can be used directly without machining or very little processing. Therefore, investment casting is an advanced process of forming near net shape.
Precision casting technology refers to the use of wax model, wrapped in a layer of clay refractory material on the surface, heated to melt the wax can be formed by the outflow of refractory material of the shell, the metal is melted and poured into the shell, when the metal cools refractory metal mould crack, called precision casting process the processing of metal, also known as casting or lost wax casting.
Precision casting is a casting method in comparison with the traditional casting process. It can obtain relatively accurate shape and higher casting accuracy. The more common approach is: first, make the required blank (can leave the margin is very small or no allowance) of the electrode, and then use the electrode corrosion pattern, specific, forming a cavity. By casting casting wax, get the original wax. In a wax brush on the sand layers of high temperature resistant liquid. To get enough after the thickness of dry, warm, the wax melted away, and get the required cavity blank consistent. Cast iron in the cavity, after curing the shell off, you can get the precision manufacturing product.
