DUAL TAPERED ORIFICE PLATE FOR A GRINDING MACHINE

摘要

Orifice plates, grinding machines, and method of using the same are provided that can process a material. In one aspect, an orifice plate includes multiple orifices, at least one of which has two tapered segments aligned with and operably connected to each other and that taper downwardly from respective outer portions to inner portions. An intermediate bore may connect to minimum diameter portions of each of the tapering segments so that the tapering segments are connected to each other by way of the intermediate bore.

主权项

1. An orifice plate for a grinding machine, the orifice plate comprising:
a first end surface; a second end surface opposite the first end surface; and a plurality of orifices defined through the orifice plate from the first end surface to the second end surface, wherein at least one of the plurality of orifices includes
a first opening defined at the first end surface and having a first width,a second opening defined at the second end surface and having a second width,an intermediate portion between the first and second openings and having a third width that is smaller than the first width and the second width,a first outer bore that extends from the first opening into the first end surface toward the intermediate portion, wherein the first outer bore includes a length and a width,a second outer bore that extends from the second opening into the second end surface toward the intermediate portion, wherein the second outer bore includes a length and a width,wherein the widths of the first and second outer bores are constant along the respective lengths,a restriction segment defined between the first outer bore and the intermediate portion, wherein the restriction segment tapers between the first outer bore and the intermediate portion, andan expansion segment defined between the intermediate portion and the second outer bore, wherein the expansion segment expands between the intermediate portion and the second outer bore.