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1) placed the good model, and lay a solid foundation for the lower body. First, fill in the amount of the veil and dorsal yarn for the first time after tamping, tamping, dredging and accurately position the two movable blocks, then fill the small veil, tamp live around the block, and then fill sand compaction
2) scrape sand excess under box and turn over box
3) dig down classification hinder the mould sand surface, the rest of the parting surface, sprinkle sand
4) placed on the sand box, (to a positioning device), according to the requirement of process place good straight gate and riser
5) ram type fill in the amount of the veil, back yarn, fixed riser and lay a solid foundation for a few reinforcement, and the first light after heavy tamping good uplink
6) scraping excess sand on the box, out of the gate, with a vent hole
7) out of the box
8) die, attention should loosen and remove the appearance, active block model
9) according to the requirement of process open runner and gate
10) repair type. Repair cavity and the gate and riser
11) type