Wax Injection:

Tools are injected by specific pressure. Wax patterns are well done.

Wax Assembly:

Produced wax pattern from single cavity or multi cavity tools are assembled on wax runners with wax made pouring cup, tie-bar and required handling arrangements for robotic or manual coating. This is one of the most specific and important stages of the process. Wax assembly designing is supported by rich computerized data base and highly experienced engineering staff.

Shell Making:

Silicasol slurry is used to cover the model by dipping or pouring. Special dry aggregate is then applied to the wet pattern. By using a fluidized bed which blows the dry particles around in a confined space, covering the wet areas until no more will adhere. The coated pattern is then left to dry a while and another layer of wet and dry material is applied. This is repeated, using coarser aggregate on the outermost layers, until a sufficient thickness has built up.
The primary coating is the crucial stage of the shelling process at which a very fine grade of sand being used to create excellent reproduction and designate surface finish.

Pre-heating and Pouring:

Pre-heating temperature of the shell is assured by using system temperature test, which identifies any defects caused by burnout and investment inclusions. If the test showed a cast was not good performance, we would change the metal and flask temperature until the cast grid got the presumed sweet spot.

Finish:

When the shells are fully cooled, they are removed mechanically from the cast assembly. All cast parts are then picked off from the runner system by cut-off wheel or conventional engineering methods. Finishes and appearance can be achieved by using a variety of blasting techniques and chemical processes.