Special mold for ceramic blank high-pressure slip casting process

Abstract

The invention belongs to the technical field of ceramic forming and particularly relates to a bathroom ceramic blank forming mold, which comprises an outer mold and a support plate, wherein the support plate seals the outer mold. The bathroom ceramic blank forming mold is characterized in that the outer mold comprises a water-absorption ventilation K gypsum mold and a steel sleeve, the steel sleeve is arranged on the outer wall of the K gypsum mold, ventilation holes are arranged on the steel sleeve, and a slip casting opening and an air injection opening are arranged on the support plate. When a special mold for the ceramic blank high-pressure slip casting process disclosed by the invention is adopted, the intensity is high, the high-pressure damage is avoided, and in addition, water penetration and ventilation can be realized.

Description

Technical field [0001] The present invention is a ceramic forming technology field, which involves a molding mold of sanitary ceramics. Background technique [0002] In the field of bathroom ceramics, the production of ceramic pieces usually adopts normal pressure grouting molding process. There is a problem in actual use in actual use: 1. The grouting molding process requires the plaster mold itself to absorb the water in the slurry, so that the slurry to make the slurry liquidSlowly cutting the shell, the molding time usually requires 4-8h, and it is not dense enough; 2. Due to the slow flow of the slurry, the surface of the molding piece is not smooth.Continuous operation, low efficiency; 4. Due to the low efficiency of grouting and molding process, a large amount of plaster molds need to be prepared at the same time, which not only has large mold investment, but also occupies a large amount of area. [0003] In order to solve the above shortcomings of the existing grouting mo...

AI Technical Summary

Problems solved by technology

[0002] In the field of sanitary ceramics, the normal pressure grouting molding process is usually used for the production of ceramic blanks. The grouting molding process has the following problems in actual use: 1. The grouting molding process requires the gypsum mold itself to absorb the water in the slurry to make the slurry Slow crust formation, the molding time usually takes 4 to 8 hours, and it is not dense enough; 2. Due to the slow flow rate of the slurry, the surface of the formed blank is not smooth enough; 3. The mold needs to be dried after each grouting molding, which cannot Continuous operation, low efficiency; 4. Due to the low efficiency of the grouting molding process, a large number of plaster molds need to be prepared at the same time, which not only requires a large investment in the mold, but also occupies a large area

[0004] The inventor found in actual use that it is precisely because most of the existing ceramic blank molding molds are made of gypsum, and the strength of the gypsum mold itself decreases rapidly with the increase of its water absorption, which cannot meet the requirements of high-pressure grouting molding , so there is an urgent need for a high-strength, water-permeable and breathable mold to be used in the high-pressure grouting molding process

Images