Slurry pump volute V-method casting process and V-method mold

The invention relates to a slurry pump volute V-method casting process and a V-method mold. The process comprises the steps of S1, production preparation; s2, molding and core making; s3, closing the box; s4, pouring is conducted; s5, carrying out post-treatment; the mold comprises a volute V-method upper mold, a volute V-method lower mold and a core box; the wall thickness of the V-method mold is 16-22 mm; the wall thickness of the core box is 14-16 mm, vent holes are drilled in the surface of the volute V-method mold after numerical control machining is completed, and the diameter phi of the vent holes is 0.8-1.5 mm; the vent holes are densely distributed in the horizontal plane at small intervals, the vent holes are sparsely distributed in the vertical wall surface at large intervals, and reinforcing ribs are arranged on the back surface of the volute V-method mold and the outer part of the core box; the upper core box and the lower core box are fastened through bolts and then are subjected to core beating