Cast Aluminium Prototype

The model can be made of wood, plastic, gypsum, clay, gypsum mold can also use clay or wax. There is information that use foam do not need to be removed from the mold, casting model on the vaporization, do not have to consider the sub-surface, quite easy, never tried.

Sand mold: do two mold boxes, the size of each side than the casting 3 to 5 cm, the upper and lower mold box to be able to locate. Choose a good profile, the gate to be arranged in the high. Sand can be molded, do not have too wet. The next box to fill the sand after the model into the half and ramming, remove the model after the sand mold and then put back, sprinkle a thin layer of dry sand, close the mold box to fill the mold, sub-box out of the model, Cut out the gate and then mold.

Gypsum mold also points up and down mold. Model surface and upper and lower mold parting machine oil or soapy water (no detergent or detergent) for release agent. Before casting mold medicine heated to 200 ~ 220 degrees.