vacuum process v-process casting machinery flask/sand box

vacuum process  v-process casting machinery flask/sand box     Product Description    The history Vacuum seal modeling technology (also called V method modeling) is the 1970s Japan invented and the successful development of a special casting method.   The technology Vacuum process cast molding is a new metal molding technology and only adopt dry sand (no water, binder, tagger). It's automatic with a electric control system. 1. Make use of the heated EVA film covering on the model to seal flask. 2. Take out the air with vacuum pump. The sand mould is tightened by pressure difference. 3. Pouring to form the casting. 4. The course is physics molding way. Release little dust, so it's eco-friendly. And the sand recovery rate can reach at 95%.   The technology process Heat the EVA film Cover the heated EVA film on the mould(can be made from wood or aluminum) Spray a coating in a certain baume degree Put on the empty blask Sand-up the flask and vibrate to compaction Cover film on the full flask Vacuate the sand flask Lift flask Mould assembling Vacuate the whole mould Pouring loose sand flask         Flask picture Company Information   Packaging & Shipping   Our Services