Silica-sol shell process:

Silica-sol shell process is utilized in the industry of engine parts casting. Due to its stable coating, this technique doesn’t require a chemical hardening process. This method has better resistance to deformation and high temperature. The poor warming of the wax is the most significant disadvantage of this technology.

Water-glass shell process:

The Soviet Union formulates this technology. From the 1950s to 1960, ‘s china accepted this technology process from the Soviets. This process is extensively used in stainless steel investment casting because of its low cost and doesn’t require high raw materials. Dimensional Accuracy is very low in this process, which is the main problem with this technology. China still operates this technology due to its low-cost advantage. MS Machining researchers build advanced improvements in this technology in terms of shell coating, optimizing hardness and composite shells.

Wax Model Assembly:

In this process, inject the wax material into the mould cavity to remove the wax model from the mould once it gets cooler. Repair some wax model deficiency by slots, injection nozzle etc. To assemble, weld the wax model to the casting system, which looks like a tree.

Pouring:

In the Pouring process, under high-temperature bars of stainless steel, dissolve into a liquid. The liquid shell is poured into the surface and set to remain cooler at room temperature. After that eliminates, the blacks and clean sand.

Dewaxing:

In dewaxing, the wax inside the shell is melted using a high-temperature stream, resulting in the cavity pouring into the mold after drain.

Inspection:

Inspection is the primary process before delivery—Dimensional, defects, and material inspection, including in the stainless steel investment casting. After complete inspection then, products can be shipped to the customer.