Ceramic ball forming die and firming method

Abstract

The invention provides a ceramic ball pouring die, comprising a soleplate which consists of an upper soleplate and a lower soleplate, a plurality of groups of formworks; each group of formworks consists of an upper formwork and a lower formwork; the ceramic ball pouring die also comprises a pouring pipe, a connecting screw and a nut. The upper soleplate and the lower soleplate and the formworks are respectively provided with a plurality of semi-spherical chambers which have the same quantity and corresponding positions; when two soleplates or two formworks are assembled, a plurality of spherical chambers can be formed; all the adjacent spherical chambers on the soleplate are mutually communicated. A plurality of groups of formworks are laminated on the soleplate and fastened by the screw; communicated spherical chamber series can be formed at positions corresponding to the vertical surface; the spherical chamber series are dumped into the ceramic slurry and flow into all spherical chambers, thus pouring and forming the ceramic balls with regular shape. The internal wall of the spherical chamber can be provided with a concave trough or a bulge so as to form the ceramic balls with the bulge or the concave trough; when the ceramic ball with the bulge or the concave trough is used for heat exchanging carrier, the heat dissipation area can be increased. The ceramic ball pouring die of the invention has the advantages of little equipment investment, compact prepared balls with regular shapes, etc.

Description

technical field [0001] The invention relates to a molding die and a molding method for ceramic materials, more specifically, to a casting mold and a method for casting ceramic material balls. Background technique [0002] Ceramic materials are often made into spherical shapes, and ceramic balls have a wide range of uses, such as a large number of heat storage balls used in grinding balls and regenerative combustion technology. Ceramic balls are required to have high density in use. Therefore, Forming a high-density ceramic ball green body plays a vital role in firing to obtain a dense ceramic ball product. [0003] The existing ceramic ball molding methods mainly include: [0004] a) Manual kneading molding method, the shape of the ball formed by this method is irregular, there is basically no molding pressure, the formed ball has poor performance, and the production efficiency is low. [0005] b) Rotating disk rolling molding method, this molding method puts the semi-dry ...

AI Technical Summary

Problems solved by technology

The advantage of this method is that there is no need to add a binder to the ball material, which is conducive to the production of high-purity and high-quality balls, but its disadvantages are that the processing technology is complicated and the production cost is high.

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