Furnacetransmutation method for large Nixing pottery products

A Nixing pottery, large-scale technology, applied in the kiln transformation field of large-scale Nixing pottery, can solve the problems of low firing rate and easy cracking, and achieve the effect of increasing firing rate, not easy to crack, and increasing kiln transformation rate

Inactive Publication Date: 2015-09-16
QINZHOU CITY HUAXIA TAIJIQUAN NINGXING POTTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large wall thickness of large vessels, it is easy to crack during firing, and the firing rate is only 60%. As the height of the vessel increases, the firing rate is getting lower and lower. Therefore, for large vessels, , in order to improve the kiln change rate, the problem of low firing rate must be solved first

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) Preparing the billet: 55 parts by weight of Dongni, 30 parts by weight of Xini and 5 parts by weight of hematite powder with a particle size of 24 μm are made into a billet;

[0024] 2) Blank forming: making the blank into large vessels of various types (height is 40cm);

[0025] 3) drying the green body;

[0026] 4) Firing green bodies: Send 100 dry large vessel green bodies into the kiln, and gradually increase the temperature to 500°C at a rate of 30°C per hour. Put 3kg of pine branches into the kiln space and close the pores of the kiln, then raise the temperature to 1000°C at a rate of 200°C per hour, keep the temperature for 0.5h, cool naturally, and leave the kiln. It is a large Nixing pottery product.

[0027] According to statistics, there are 91 large Nixing pottery vessels in good condition, of which 80 were kilns.

Embodiment 2

[0029] 1) Preparing the billet: 65 parts by weight of Dongni, 40 parts by weight of Xini and 10 parts by weight of magnetite powder with a particle size of 30 μm are made into a billet;

[0030] 2) Body molding: make the blank into large-scale vessels of various types (height is 45cm);

[0031] 3) Trimming the green body;

[0032] 4) drying the green body;

[0033] 5) Firing blanks: send 100 dry large-scale vessel blanks into the kiln, gradually increase the temperature to 750°C at a rate of 50°C per hour, and put them in per cubic meter of kiln space Put 5kg of turpentine into the resin and close the pores of the kiln, then raise the temperature to 1050°C at a rate of 250°C per hour, keep it for 1 hour at this temperature, cool naturally, and leave the kiln to become large-scale Nixing pottery. finished product.

[0034] According to statistics, there are 87 intact Nixing pottery large vessels, of which 78 are kilns.

Embodiment 3

[0036] 1) Preparing a billet: 60 parts by weight of Dongni, 35 parts by weight of Xini and 8 parts by weight of hematite powder with a particle size of 26 μm are made into a billet;

[0037] 2) Blank forming: making the blank into various types of large vessels (height is 50cm);

[0038] 3) Trimming the green body;

[0039] 4) drying the green body;

[0040] 5) Firing blanks: send 100 dry large vessel blanks into the kiln, gradually increase the temperature to 650°C at a rate of 40°C per hour, and put them in per cubic meter of kiln space Put wood chips in the proportion of 4kg wood chips and close the air holes of the kiln, then raise the temperature to 1030 ° C at a rate of 220 ° C per hour, and keep it for 0.8 hours at this temperature, cool naturally, and leave the kiln, that is, large-scale Nixing Pottery products.

[0041] According to statistics, there are 83 intact Nixing pottery large vessels, of which 72 were kilns.

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PUM

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Abstract

The invention provides a furnace transmutation method for large Nixing pottery products. The furnace transmutation method for large Nixing potteryproducts comprises the following steps: 1) preparation of blank material: using 55-65 parts by weight of east mud, 30-40 parts by weight of west mud and 5-10 parts by weight of iron ore powder to prepare the blank material; 2) shaping of blanks: making the blank material into various shapes of large vessels; 3) drying the blanks and 4) firing the blanks: loading the dried vessel blanks into a furnace and raising the temperaturegradually; specifically, raising the temperature to 500-750 DEG C at a speed of 30-50 DEG C / h, adding furnace transmutation material at 500-750 DEG C and sealing vent holes of the furnace; then, raising the temperature to 1000-1050 DEG C at a speed of 200-250 DEG C / h and firing at the constant temperature of 1000-1050 DEG C for 0.5-1h; naturally cooling and taking out of the furnace, thus obtaining finished large Nixing pottery products. The furnace transmutation method for large Nixing potteryproducts is capable of improving the furnace transmutation rate while ensuring the firing yield oflarge Nixing pottery products.

Description

technical field [0001] The invention relates to a preparation method of pottery, in particular to a kiln transformation method of large-scale Nixing pottery. Background technique [0002] Nixing pottery is divided into large Nixing pottery (height ≥ 35cm) and small Nixing pottery (both height < 35cm) according to the type of vessel. Regardless of the size of the vessel, the production process of Nixing pottery is the same, including the preparation of the blank (the soil east of the Qinjiang River across Qinzhou City, commonly known as Dongni, is soft clay, yellow-white in color, and contains a small amount of quartz sand; The soil in the area west of the Heqin River, commonly known as Xini, is a kind of purple mudstone with high iron content. It is purple in color and has a small amount of iron on the surface. than mixing, through a series of processes such as grinding and dehydration to make blanks), blank forming, trimming blanks, blank drying, blank decoration, blank...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13
Inventor 黄涛默卢珊
Owner QINZHOU CITY HUAXIA TAIJIQUAN NINGXING POTTERY
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