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Preparation technique of black sand pottery

A preparation process, technology of black sand, applied to clay products, other household utensils, household utensils, etc., can solve the problems of internal roughness, fragility, and short service life, etc., and achieve beautiful appearance, long service life and good application effect Effect

Inactive Publication Date: 2011-05-04
胡正德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the sintering furnace temperature of sand pottery is about 800°C, and the sintered sand pottery forms a carbon structure inside, which is rough and fragile inside, and the service life is not long

Method used

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  • Preparation technique of black sand pottery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 of the present invention: the preparation process of black sand pottery, calculated in parts by weight, first dry 60 parts of clay at 250 ° C, dry until the pulverized clay is powdery, and stir the pulverized clay with water Rinse and settle through flow slurry, take the precipitated pure and fine material for later use (this step is called pulp washing); dry 20 parts of black sand mud at 250 °C until the crushed black sand mud is powdery; 1 part black iron ore is dried at 400°C until the crushed black iron ore is powdery, and the crushed black iron ore is washed for later use; 10 parts of clean coal are boiled in boiling water under normal pressure and heated for 1.5 hour, then it is dried at 100°C until the pulverized clean coal becomes powdery, and the pulverized clean coal is washed for later use; the above materials are mixed and stirred evenly to obtain a mixed material A; the mixture Material A is drawn to obtain green body B; green body B is drawn and ...

Embodiment 2

[0022] Example 2 of the present invention: the preparation process of black sand pottery, calculated in parts by weight, first dry 50 parts of clay at 200°C until the pulverized clay is powdery, and wash the pulverized clay for later use ; 25 parts of black sand mud are dried at 300°C until the pulverized black sand mud is powdery; 4 parts of black iron ore are dried at 300°C until the pulverized black iron ore is powdery. The pulverized black iron ore is washed for standby; 12 parts of clean coal are placed in boiling water under normal pressure and heated for 2 hours, the heated clean coal is pulverized, and the pulverized clean coal is washed for standby; the above materials are Mix and stir evenly to obtain a mixed material A; trim the mixed material A to obtain a green body B; draw and process the green body B to obtain a green body C; place the green body C at room temperature for more than 2 days , to obtain the green body D; the green body D was sintered at 1000 ° C fo...

Embodiment 3

[0023] Example 3 of the present invention: the preparation process of black sand pottery, calculated in parts by weight, first dry 70 parts of clay at 300°C until the pulverized clay is powdery, wash the pulverized clay for later use ; 15 parts of black sand mud are dried at 200°C until the pulverized black sand mud is powdery; 6 parts of black iron ore are dried at 500°C until the pulverized black iron ore is powdery. The pulverized ferrous ore is subjected to precipitation treatment and pulp washing for subsequent use; 8 parts of clean coal are placed in boiling water under normal pressure and heated for 1 hour, the heated clean coal is pulverized, and the pulverized clean coal is washed for subsequent use; The above materials are mixed and stirred evenly to obtain a mixed material A; the mixed material A is drawn to obtain a green body B; the green body B is engraved to obtain a green body C; the green body C is placed at room temperature for 2 After more than 1 day, the gr...

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Abstract

The invention discloses a preparation technique of black sand pottery, which comprises the following steps: respectively pulverizing clay, black sand mud, black iron ore and clean coal according to parts by weight, mixing the pulverized materials, and evenly stirring to obtain a mixture A; carrying out throwing or mold pressing on the mixture A to obtain a green body B; carrying out drawing or carving on the green body B to obtain a green body C; putting the green body C at room temperature for more than 2 days to obtain a green body D; sintering the green body D to obtain crude pottery E; and coloring the green body of the crude pottery E, and carrying out heat treatment to obtain fine pottery. By adjusting the formula of the black sand pottery, the invention raises the sintering temperature, so that a semi-porcelanous structure is respectively formed on the surface and inside of the black sand pottery, and the texture of the black sand pottery is between pottery and porcelain. Therefore, the discharged product has the advantages of crisp sound, light structure, beautiful appearance, favorable corrosion resistance and long service life, and is thin, delicate and hard.

Description

technical field [0001] The invention relates to a ceramic production process, in particular to a preparation process of black sand pottery. Background technique [0002] Black sand pottery is a kind of pottery that uses clay and sand as the main raw materials. Its sand composition is heavier than other pottery types, and it belongs to sand pottery. The root of the pottery is black, so it is called black sand pottery. Today's black sand pottery has the functions of high temperature resistance, acid and alkali resistance, moisture content, breathability, heat preservation, etc., so it is widely used in tableware, wine set, tea set, garden corgi utensils, medical and health utensils, etc. Generally, the sintering furnace temperature of sand pottery is about 800°C, and the sintered sand pottery forms a carbon structure inside, which is rough and fragile inside, and has a short service life. Contents of the invention [0003] The technical problem to be solved by the present i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/00C04B33/13
Inventor 胡正德
Owner 胡正德
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