Semi Automatic Silver Jewellery Casting Machine, Power : Mechanical

The principal behind vacuum casting is very similar to that of centrifugal casting. Once again, molten gold has to be sent with enough thrust into a flask to enable it to funnel through detailed cavities before cooling. The equipment used for vacuum casting requires the flask be loaded in a sleeve within a chamber to enable a forcible vacuum to inhale molten metal into the investment as it is being poured or released. Precious Metal Castings Once the flasks are filled it is necessary to remove the precious metal castings. The hollow impression in plaster, filled with glowing red platinum or gold castings, is lifted from the casting equipment with tongs. Depending on color, carat, or metal used, they are quenched in water or left to cool. When the flasks are cooled, the investment form is destroyed while the remaining plaster is chipped away, leaving behind a tree containing models as branches. The models are then cut free from the sprue and forwarded to jewelers who will execute jewelry polishing, jewelry fabrication, and stone setting to transform the casting into fine jewelry.ting Machine.