Alternative applications of a mathematical model of the process of drawing of ceramic materials for computer design of molding tools with diaphragms for screw extruders are proposed. A technique of determining the parameters of the plasticity function of molded materials and the friction coefficients of the material against the surface of the tool with the use of production equipment is developed. Flow conditions of materials through different types of tools the working molding surfaces of which are upright are analyzed. It is shown how varying the form of the surface of a channel, the drawing ratio of material in the zone of local reduction in the channel cross-section, and the cross-sectional area of the billets enables selection of an optimal combination of these factors for the drawing process.
Refractories and Industrial Ceramics – Springer Journals
Published: Jul 18, 2013
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