Special mold for ceramic blank high-pressure slip casting process

Abstract

The invention belongs to the technical field of ceramic molding, and in particular relates to a molding mold for sanitary ceramic blanks; it includes an outer mold and a support plate for sealing the outer mold, and is characterized in that: the outer mold includes a water-absorbing and air-permeable K plaster mold and is arranged on K The steel sleeve of the outer wall of the plaster mold, the steel sleeve is provided with air vents, and the support plate is provided with a grouting port and an air injection port; the special mold for the high-pressure grouting molding process of ceramic blanks adopting the technical solution of the present invention, the strength High is not easy to be damaged by high pressure, and can be permeable and breathable.

Description

technical field [0001] The invention belongs to the technical field of ceramic molding, and in particular relates to a molding die for sanitary ceramic blanks. Background technique [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 mold inves...

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

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