| 摘要 |
The present invention relates to a metal mold for manufacturing a straight wax body for a valve and to the straight metal body thus obtained, said metal mold succeeding in eliminating the traditional concave shape of the ball-type valve body, inside which, and during fluid flow distribution, the flow from the fluid inlet cavity to the fluid distribution cavity causes a flow loss in the direction of the fluid flow outlet via the fluid outlet cavity, thus creating a steep drop in pressure, meaning that by eliminating the concave part of the ball-type valve body and making the fluid inlet, distribution and outlet cavities straight and much wider, a straight valve body is obtained, thus preventing the steep drop in pressure and flow loss. The metal mold in the invention, which uses the lost-wax or ceramic casting process to manufacture the straight wax body for a valve of any design, is constituted starting with a rectangular or square housing that includes an orifice through which the graded wax is introduced at a certain temperature for forming the straight wax body for the valve inside the metal mold.
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