The Introduction of Investment Casting

Investment casting method refers to the use of non-metallic mold (shell mold), accuracy dimension and bright surface is higher than the general sand casting method which has a unique characteristic and advantage different from general traditional casting, forging, and mechanical cutting. Investment casting is another name commonly known and divided into three categories, including lost wax casting or precision casting, plaster mold casting and ceramic mold casting, the most important lost wax casting. The originally English called investment casting; however, the manufacturing process of dewaxing, it is also known as lost wax casting.

The material of the lost wax casting method is made of refractory slurry (such as silicic acid or silicone rubber), binder and other materials to make slurry liquid and mix with zircon sand and mulgrain sand are sequentially covered in the wax tree outside after repeating several times of dipping slurry, fluid sand and drying to form a layer of similar ceramic shell, after the formation of the so-called ceramic shell mold, so casting alloy steel, super alloy and other high-temperature high-precision casting method.

There are two major categories of lost wax casting: solid mold and ceramic shell mold. The ceramic shell mold is a modified method from solid mold. Most of foundries apply for this method already.

Investment casting is widely used in industrial machinery and equipment, valves, pumps, injection engines, gas turbines, measuring instruments, aircraft parts, internal combustion engines, vehicles, food machinery, printing machinery, paper machinery, compressors, sewing machines, steam turbines, weapons, business machines, and other machine parts.

Sieg-Huao is a professional manufacturer of investment casting, welcome to contact us if you have any demands!