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Kiln Transformation Method of Nixing Pottery

A kind of technology for revitalizing pottery and kiln transformation, which is applied to other household utensils, clay products, household utensils and other directions. It can solve the problems that products cannot be kiln transformed and affect the profit of manufacturers, and achieve the effect of increasing kiln variation rate and quantity.

Inactive Publication Date: 2018-10-12
钦州市外国语学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through research, it is found that the main factor affecting the kiln transformation of Nixing pottery is the reduction stage of iron oxide in the firing process. Kiln exhaust and other methods are used to increase the probability of kiln transformation of Nixing pottery. The probability of kiln transformation of Nixing pottery has gradually increased from the initial 10-20% to about 80%, but there are still about 20% of products that cannot undergo kiln transformation, which seriously affects production. Manufacturer's profit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Billet preparation: mix the east mud and west mud at a weight ratio of 6:4, add iron oxide yellow with a total weight of 1.2% of the mixed mud, mix evenly, and go through grinding, pressure filtration, vacuum mud refining, and aging processes After that, the blank is obtained;

[0020] 2) Body forming: making 200 green bodies of various types from the green body;

[0021] 3) Drying of the green body: drying the green body;

[0022]4) Green body firing: put the dried green body into the kiln, raise the temperature to 250 °C at a rate of 20 °C per hour, and then increase the temperature to 950 °C at a rate of 50 °C per hour, and send it to the kiln. Put the kiln variable material into the furnace, block all the ventilation holes from top to bottom after 10 seconds, and stop the fire when the temperature is raised by 40 °C per hour to 1100 °C, and then leave the kiln after cooling.

[0023] The dosage of the kiln-changing material is 0.5 kg per cubic meter of kiln spa...

Embodiment 2

[0026] 1) Billet preparation: mix the east mud and west mud with a weight ratio of 4:6, add iron oxide yellow with a total weight of 1.2-2.8% of the mixed mud, mix evenly, grind, press filter, vacuum mud, After the aging process, the billet is obtained;

[0027] 2) Body forming: making 200 green bodies of various types from the green body;

[0028] 3) Drying of the green body: drying the green body;

[0029] 4) Green body firing: Put the dried green body into the kiln, raise the temperature to 350°C at a rate of 30°C per hour, and then increase the temperature to 1050°C at a rate of 100°C per hour, Put the kiln variable material into the furnace, block all the ventilation holes from top to bottom after 50 seconds, and stop the fire when the temperature is increased by 60 °C per hour to 1150 °C, and then leave the kiln after cooling.

[0030] The dosage of the kiln-changing material is 1kg per cubic meter of kiln space, and the kiln-changing material is selected from dried sh...

Embodiment 3

[0033] 1) Billet preparation: mix the east mud and west mud at a weight ratio of 1:1, add iron oxide yellow with a total weight of 1.2-2.8% of the mixed mud, mix evenly, grind, press filter, vacuum mud, After the aging process, the billet is obtained;

[0034] 2) Body forming: making 200 green bodies of various types from the green body;

[0035] 3) Drying of the green body: drying the green body;

[0036] 4) Green body firing: Put the dried green body into the kiln, raise the temperature to 300°C at a rate of 25°C per hour, and then increase the temperature to 1000°C at a rate of 80°C per hour, Put kiln-changing materials in the furnace, block all the ventilation holes from top to bottom after 30 seconds, raise the temperature by 50 °C per hour to 1120 °C, stop the fire, and leave the kiln after cooling.

[0037] The dosage of the kiln-changing material is 0.6kg per cubic meter of kiln space, and the kiln-changing material is the dry shell of soybean pods.

[0038] Accordi...

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Abstract

The invention discloses a kiln transformation method of nixing pottery. The kiln transformation method comprises the steps of preparing green materials, forming a green body, drying the green body and firing the green body, wherein the step of preparing the green materials comprises the following specific steps of mixing east mud and west mud according to a conventional proportion, adding iron oxide yellow accounting for 1 to 3 percent of the total weight of mixed mud, and preparing into the green materials according to a conventional process; the step of firing the green body comprises the following specific steps of placing a dried green body into a kiln, placing kiln transformation materials into the kiln when the temperature is increased to 950 to 1050DEG C, stopping heating when the temperature is continuously increased to 1100 to 1150DEG C, cooling and discharging from the kiln, wherein the feeding amount of the kiln transformation materials is 0.5 to 1kg per square meter of kiln space; the kiln transformation materials are selected from one or more of dry shells of melon seeds, peanuts and pods. According to the kiln transformation method disclosed by the invention, an oxidation stage and a reduction phase of iron oxide in the firing process are simultaneously controlled, so that the kiln transformation rate of Nixing pottery products is greatly improved.

Description

technical field [0001] The invention relates to a firing method of pottery, in particular to a kiln transformation method of Nixing pottery. Background technique [0002] Nixing pottery in Qinzhou, whose scientific name is purple clay pottery, is one of the four famous pottery in China together with Jiangsu Zisha pottery, Yunnan Jianshui pottery, and Chongqing Rongchang pottery. The traditional Qinzhou Nixing pottery preparation process mainly includes the following steps: 1) Prepare the blank: the blank is selected from the soil east of the Qinjiang River across Qinzhou City, commonly known as Dongni (soft clay, yellow-white in color, containing trace amounts of Quartz sand, which plays the role of adjusting plasticity and bonding in the production process of Nixing pottery), and the soil in the west of Qinjiang River, commonly known as Xini (containing a small amount of K 2 O, NaO, CaO, MgO, Fe 2 0 3 、TiO 2 , MnO 2 , is a kind of purple mudstone with high iron content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/32C04B33/14
CPCC04B33/14C04B33/32C04B2235/3272C04B2235/656
Inventor 梁颖陈亚楠张家纯
Owner 钦州市外国语学校
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