专利名称：METHODS AND APPARATUS FOR PRODUCING SAND MOLDS
发明人：BUHLER E,DT
申请号：US32777373
disappoint申请日：19730129
ipt公开号：US3807483A
公开日：
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19740430
外语培训学校
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奥巴马演讲摘要：The provision of sand casting molds by means of at least one mold frame, at least one pattern plate, at least one press die movable vertically relative to the pattern plate, a mold-sand chamber located opposite the press die, a pneumatic mold-sand filler device which by means of a superficial pressure gas load on a mold-sand volume located in the mold-sand chamber moves at least a part of the mold-sand volume into the mold frame area through openings in the press die, said mold-sand volume beng automatically pre-compacted in said mold frame area by the kinetic force of such movement, and by moving the press die towards the pattern plate there is a re-compacting of the sand, and the relead finished mold is moved by a conveying means to a casting pit and a knock-out point.
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晚安的日语申请人：BUHLER E,DT
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