Address: Lot VIII-1, Honai Industrial Zone, Trangbom District, Dongnai Province, 810000 Vietnam.
The investment casting process begins with the creation of a permanent mold, which matches the shape of the component.
Once the mold is created, hot wax is injected into the mold. The wax in the mold is then left to cool and harden.
Once the wax pattern is cooled down, it is repeatedly dipped into a slurry of fine-grained silica, being coated progressively until reaching the desired thickness.
The ceramic shape is then placed upside down into the oven so that the wax melts, leaving a hollow ceramic shape.
The ceramic mold is heated to 1000 – 2000°F (550 – 1100°C). This heat strengths the mold, eliminating any leftover wax or contaminants, and evaporates water from the mold material. Molten metal is then poured into the mold.
Once completely cooled, the ceramic layer is removed, leaving a completed metal component.
To the right of a completed set of components, a technician removes the ceramic material from a component. In the background, two technicians operate presses that inject wax into the molds.
A technician prepares to install a mold into an investment casting press.
A technician applies sand to the wax component. Layers are applied until the desired thickness is achieved. In the background, several components hang on the rack to cool.
A technician holds a component covered in glue under sand to create the ceramic layer.
A technician hangs a component covered in a ceramic layer to begin the cooling process.
A technician pulls a component out of the glue basin to begin the ceramic layering process.
A technician holds a component after sand has been applied to create a ceramic layer.
A technician heats up a steel alloy to an extreme temperature to pour the metal into the ceramic mold.
Several technicians introduce ceramic molds to the oven. To have metal poured into them, the ceramic molds must reach a certain temperature so that they do not break when introduced to the molten metal.
Two technicians work together to pour molten metal into the cavity of the ceramic component.
In the final step of the investment casting process, five molds have been filled with molten metal and are ready to be covered up to begin the cooling process. After cooling is complete, the ceramic is removed so that only the steel component remains.
Technicians introduce each mold to the oven to heat the component so it will not break when introduced to the molten metal.
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