Abstract

  The paper presents the results of a study of powdered ceramic materials based on silica clay the production of bricks method of compression molding. It is shown that the press powders based on silica clay pressed in a wide range of moisture content, the maximum compatibility in terms of the solid phase is achieved at a certain humidity in the range of 15–30 MPa compaction pressure (depending on the type of molding boxes and humidity), the density of compacts in terms of solid phase begins to exceed the average density of the material (density in the piece), for pressing molding powders with a moisture content below the optimum, almost regardless of the specific pressure extrusion, different-density compaction can reach 4–6%.

Keywords: Silica clay, compressibility, moisture, pressure, density, press powders