Sand-mold molding method for water turbine blade
A water turbine and sand mold technology, which is applied to molds, mold cores, mold components, etc., can solve the problems of easy gaps between sand cores, long production cycle, and difficult structure, so as to reduce the difficulty of mold making and sand The effect of reducing the volume of the box and shortening the production cycle
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[0013] The invention provides a sand molding method for water turbine blades. By making a blade solid model corresponding to the water turbine blade, then placing the blade solid model in a sand box for quicksand modeling, and finally taking out the blade solid model, the blade solid model is in The gap left in the sand mold serves as the sand mold cavity for casting the turbine blades. The sand molding method of the water turbine blade comprises the following steps:
[0014] Step S300, model making: making a solid model of the blade corresponding to the blade of the water turbine, so as to use the solid model of the blade to form the contour surface of the blade casting during modeling; according to the contour line of the blade of the water turbine, make a frame slab for support by the frame slab and position the solid model of the blade; according to the shape of the frame slab, make conformal cores around the frame slab so that the conformal cores can be used to form the c...
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