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Process for burning porcelain by utilizing large ball clay as raw material

A technology of large ball clay and porcelain, which is applied to clay products, household utensils, and other household utensils. It can solve the problems of not being beautiful enough and not meeting the aesthetic requirements of modern people, and achieve the effect of smooth surface, small color difference, and low water absorption rate.

Active Publication Date: 2015-09-02
湖南大球泥瓷艺集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the whiteness of porcelain is about 65-75 degrees, the thickness is about 3-4mm, the glossiness is less than 80%, and the color difference is less than 1.5. For ornamental high-grade porcelain, it is not beautiful enough and does not meet the aesthetic requirements of modern people.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) The mud containing 35% large ball mud, 25% kaolin, 20% potassium feldspar, and 20% quartz is molded into the required shape by manual drawing and stacking to form a mud billet. The mass percentage of the chemical composition of the large ball mud selected is: SiO 2 52%, Al 2 o 3 33%, Fe 2 o 3 0.1%, CaO 0.6%, MgO 0.2%, K 2 O is 1%, Na 2 O is 0.3%, loss on ignition is 12.8%.

[0032] 2) Put the mud into the kiln for bisque firing, heat it from room temperature to 760 degrees, stop the fire, and then cool it down to room temperature.

[0033] 3) Repair and polish the mud body after bisque firing until its surface is smooth.

[0034] 4) 46% feldspar, 13% talc, 33% quartz, and 5% clay are prepared by mass percentage to form a Baume concentration of 44 ° Bé glaze.

[0035] 5) Soak the mud body in the glaze with a Baume concentration of 44°Bé, let the mud body absorb naturally, and form a 0.3mm thick glaze layer.

[0036] 6) Repeat step 2).

[0037] 7) Apply the inn...

Embodiment 2

[0042] 1) The mud containing 40% large ball mud, 20% kaolin, 16% potassium feldspar, and 24% quartz is molded into the required shape by manual drawing and stacking to form a mud billet. The mass percentage of the chemical composition of the large ball mud selected is: SiO 2 51%, Al 2 o 3 34%, Fe 2 o 3 0.08%, CaO 0.7%, MgO 0.3%, K 2 O is 1.2%, Na 2 O is 0.4%, loss on ignition is 12.32%.

[0043] 2) Put the mud into the kiln for bisque firing, heat it from room temperature to 800 degrees, stop the fire, and then cool it down to room temperature.

[0044] 3) Repair and polish the mud body after bisque firing until its surface is smooth.

[0045] 4) 50% feldspar, 12% talc, 33% quartz, and 5% clay are prepared by mass percentage to form a Baume concentration of 45°Bé glaze.

[0046] 5) Soak the mud body in the glaze with a Baume concentration of 45°Bé, let the mud body absorb naturally, and form a 0.3mm thick glaze layer.

[0047] 6) Repeat step 2).

[0048] 7) Apply the...

Embodiment 3

[0053] 1) The mud material containing 42% of large ball mud, 18% of kaolin, 15% of potassium feldspar, and 25% of quartz is molded into the required shape by manual drawing and stacking to form a mud billet. The mass percentage of the chemical composition of the large ball mud selected is: SiO 2 50%, Al 2 o 3 35%, Fe 2 o 3 0.05%, CaO 0.6%, MgO 0.3%, K 2 O is 1.1%, Na 2 O is 0.5%, loss on ignition is 12.45%.

[0054] 2) Put the mud into the kiln for bisque firing, heat it from room temperature to 800 degrees, stop the fire, and then cool it down to room temperature.

[0055] 3) Repair and polish the mud body after bisque firing until its surface is smooth.

[0056] 4) SiO 2 75%, Al 2 o 3 11%, Fe 2 o 3 0.08%, CaO 0.2%, MgO 4.5%, K 2 O is 4.5%, Na 2 O is 1.5%, loss on ignition is 3.22%, and the Baume concentration is 46°Bé glaze prepared by mass percentage.

[0057] 5) Soak the mud body in the glaze with a Baume concentration of 46°Bé, let the mud body absorb natur...

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Abstract

The invention provides a process for burning porcelain by utilizing large ball clay as a raw material. The large ball clay is also called halloysite, is efflorescence residue of plagioclase granite pegmatite and is original kaolin, and the chemical components of the large ball clay are close to theoretical values of kaolin. The process provided by the invention comprises the steps of making a briquette, biscuiting, glazing and burning. According to the process provided by the invention, certain properties of the large ball clay (also called halloysite clay) are utilized, the raw materials of the porcelain are selected, and the burning process is improved to further improve the whiteness and glossiness of the porcelain and reduce the chromatic aberration, a porcelain finished product made by the process provided by the invention is high in whiteness, good in glossiness, strong in transparency, smooth and tender in glaze, and green is doped in a white bottom, so that the porcelain can meet the aesthetic requirements of the modern on high grade porcelain.

Description

technical field [0001] The invention relates to the field of porcelain firing technology, in particular to a porcelain firing technology whose raw material contains large ball clay. Background technique [0002] After the ceramic art is shaped or artistically designed, glazed and decorated, it does not mean that the ceramic art is born, and it has to go through a series of technical process tests, especially the test of fire. The so-called "coloring of boxware is different from that of calligraphers. All colors on the vessel must be set after fire" (Zhu Yan's "Tao Shuo"); , childish and rustic" (Zhou Gaoqi's "Yangxian Minghu Series") is what it means. Whether the carcass is deformed, damaged, and the formation of colored glaze and patterns is satisfactory depends on fire. Its color is extremely sensitive, kiln structure, firing temperature, cooling method, changes in gas composition and concentration in the kiln, etc. Even if it is affected by the same formula under differ...

Claims

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Application Information

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IPC IPC(8): C04B33/13C04B33/34
Inventor 滕召华
Owner 湖南大球泥瓷艺集团有限公司
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