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Green body of red soil ceramic and formula of transmutation glaze of red soil ceramic

A technology for changing the glaze of red earth pottery and kiln is applied in the formulation field of ceramic body and its surface glaze, which can solve the problems of large amount of lead dissolved in the product, prone to early glaze cracking, and difficulty in glazing, etc., so as to reduce the energy consumption of firing, The effect of improving the grade and market share and saving production costs

Active Publication Date: 2012-10-10
FUJIAN JIAMEI GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a red soil pottery body and a kiln-transformed glaze formula thereof to overcome the problems of the existing red soil pottery body that it is not easy to glaze, easy to produce glaze cracks, porous body, and red soil pottery glaze. The firing temperature is high, early glaze cracking is easy to occur, the product has a large amount of lead leaching, and it cannot be used on daily-use ceramics, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0011] This embodiment is a preferred embodiment.

[0012] Red soil pottery green body, the preparation of the green body includes the following raw materials: laterite, quartz, talc, limestone, dolomite; more specifically, the raw material for the preparation of the green body includes the following components: 49.3% SiO 2 , 26.3% Al 2 o 3 , 2.1% Fe 2 0 3 , 1.6% K 2 O, 1.9% MgO, 18.8% CaO.

[0013] Red soil pottery kiln variable glaze, the preparation of the glaze includes the following raw materials: 37 parts of potassium feldspar, 23 parts of albite feldspar, 12 parts of calcium oxide, 18 parts of barium oxide, 12 parts of Longyan kaolin, 9 parts of quartz powder, 0.3 parts of sodium tripolyphosphate 15 parts of titanium oxide, 6 parts of rutile, 8 parts of zinc oxide, and 14 parts of coloring agent; the firing temperature of the glaze is 1230°C.

Embodiment approach 2

[0015] Red soil pottery green body, the preparation of the green body includes the following raw materials: laterite, quartz, talc, limestone, dolomite; more specifically, the raw material for the preparation of the green body includes the following components: 49.3% SiO 2 , 26.3% Al 2 o 3 , 2.1% Fe 2 0 3 , 1.6% K 2 O, 1.9% MgO, 18.8% CaO.

[0016] Red soil pottery kiln variable glaze, the preparation of the glaze includes the following raw materials: 35 parts of potassium feldspar, 25 parts of albite feldspar, 8 parts of calcium oxide, 15 parts of barium oxide, 15 parts of Longyan kaolin, 6 parts of quartz powder, 0.4 parts of sodium tripolyphosphate 20 parts, 20 parts of titanium oxide, 2 parts of rutile, 10 parts of zinc oxide; the firing temperature of the glaze is 1210 ℃.

Embodiment approach 3

[0018] Red soil pottery green body, the preparation of the green body includes the following raw materials: laterite, quartz, talc, limestone, dolomite; more specifically, the raw material for the preparation of the green body includes the following components: 49.3% SiO 2 , 26.3% Al 2 o 3 , 2.1% Fe 2 0 3 , 1.6% K 2 O, 1.9% MgO, 18.8% CaO.

[0019] Red soil pottery kiln variable glaze, the preparation of the glaze includes the following raw materials: 40 parts of potassium feldspar, 22 parts of albite feldspar, 15 parts of calcium oxide, 20 parts of barium oxide, 8 parts of Longyan kaolin, 12 parts of quartz powder, 0.2 parts of sodium tripolyphosphate 10 parts of titanium oxide, 10 parts of rutile, 3 parts of zinc oxide, 25 parts of coloring agent; the firing temperature of the glaze is 1250°C.

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Abstract

The invention relates to a green body of red soil ceramic. The green body of the red soil ceramic is prepared from the following raw materials: red soil, quartz, talc, limestone and dolomite; the transmutation glaze of the red soil ceramic is prepared from the following raw materials: potassium feldspar, albite, calcium oxide, barium oxide, kaolin, quartz powder, sodium tripolyphosphate, titaniumoxide, rutile, zinc oxide and a coloring agent. By addition of other mineral raw materials, chemical raw materials and the like, the physical performance and the chemical performance of the green body are changed and the technical problems that the green body glaze of the red soil product is difficult to combine and the product is loose and fragile are solved; the firing temperature of the glaze is reduced from 1,310 DEG C to 1,230 DEG C, so thatthe firing temperature is reduced by 80 DEG C, the using amount of the fuel and the discharge quantity of harmful gas are reduced, environmental protection is contributed and production cost is greatly saved; and by development of the lead-free transmutation glaze, the lead-free transmutation glaze is suitable for being combined with the green body of the red soil ceramic, so that the problem of pollution to the ceramic decorative environment is solved fundamentally.

Description

technical field [0001] The invention relates to a formula of a ceramic body and its surface glaze, in particular to a formula of a red clay pottery body and its kiln-transformed glaze. Background technique [0002] The main raw material of laterite body is rich in laterite resources, good in plasticity and easy to shape, and can be fired in a wide range from 1000°C to 1250°C. However, most of the laterite cannot be directly glazed due to its expansion coefficient. The chemical composition of laterite is mainly 52.78% SiO 2 , 33.57% Al 2 o 3 , 10.43% Fe 2 0 3 , 3.16% of K 2 O, 0.06% Na 2 O. Only laterite is used as the raw material for the preparation of the green body, and its SiO 2 Low content, Al 2 o 3 , Fe 2 o 3 High content is not conducive to the formation of silicate compounds; K 2 O, Na 2 The O content mainly affects the bisque firing temperature of the green body. If the content is too high, the firing temperature of the green body will be lowered, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B41/86
Inventor 苏俊基
Owner FUJIAN JIAMEI GRP
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