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Ceramic sintering process and equipment used therein

A technique and technology of pottery blanks, which are applied in the field of pottery firing and the equipment used in the process, can solve the problems of needing natural cooling for about two days before leaving the kiln, increasing production costs, prolonging the production cycle, etc., to achieve shortening Production cycle, ease of operation, effect of reducing power-on time

Inactive Publication Date: 2013-04-17
GUANGXI QINZHOU QIANQIU CERAMIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing firing method, it takes about two days for the kiln to come out of the kiln after the power is cut off, which is equivalent to wasting the heat emitted during the cooling process from 1200°C to almost normal temperature. On the other hand, because the fired pottery must be cooled in the firing kiln and the production cycle is prolonged, this is also a factor that leads to high production costs

Method used

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  • Ceramic sintering process and equipment used therein
  • Ceramic sintering process and equipment used therein

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Effect test

Embodiment 1

[0020] The equipment used in the pottery firing process of the present invention includes a holding furnace for preheating the pottery blanks and a firing kiln for firing the preheated pottery blanks, and the firing kiln is a conventional electric kiln , the holding furnace as figure 1 As shown, the holding furnace can be a sealed container with a furnace door on one side, an insulating layer 3 is arranged on the outer surface of the container, the space in the container is called a furnace, and a partition 4 is arranged in the furnace. The partition plate 4 is set perpendicular to the side with the furnace door, thereby dividing the furnace into two independent first chambers 1 and second chambers 2. The partition plate 4 is provided with several through holes 5, These through holes 5 are arranged in a matrix on the separator 4, as figure 2 shown. By designing these through holes 5, the air in the two chambers can communicate with each other, so that the pottery blanks in ...

Embodiment 2

[0022] Embodiment 2: the pottery firing process implemented in conjunction with the equipment described in Embodiment 1

[0023] The pottery firing process of the present invention includes the step of preheating the ceramic blank, and the step of sending the preheated ceramic blank into an electric kiln for firing, wherein:

[0024] The step of preheating the pottery blank is to first install the pottery blank on the furnace car (the installation is carried out according to the existing conventional method), then place the furnace car in the first chamber 1 of the holding furnace, and then Quickly transfer the last batch of pottery that has been fired in the firing kiln to the second chamber 2 of the holding furnace, and then close the furnace door of the holding furnace, and use the circulation of air in the two chambers to realize the drying of the ceramic blanks. Preheating; wherein, the last batch of pottery that has been fired is transferred to the second chamber 2 of th...

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Abstract

The invention discloses a ceramic sintering process and equipment used therein. The ceramic sintering process comprises a step of preheating greenware and a step of sintering the preheated greenware in a sintering kiln. The step of preheating is carried out in a holding furnace and comprises the following sub-steps: the greenware is placed in a first cavity of the holding furnace, a previous batch of ceramics sintered in the sintering kiln are rapidly transferred into a second cavity of the holding furnace, and preheating of the greenware is realized by utilizing circulation of air between the two cavities, wherein, the sintered ceramics are transferred into the second cavity of the holding furnace when the temperature in the sintering kiln is no less than 800 DEG C. The equipment comprises the holding furnace for preheating the greenware; a separator plate is provided in the furnace chamber of the holding furnace and divides the furnace chamber into two independent cavities, i.e., the first cavity and the second cavity, and the separator plate is provided with at least a through hole so as to realize circulation of air between the two cavities. The method provided in the invention has the advantages of low cost and a short production period.

Description

technical field [0001] The invention relates to a pottery firing process and equipment used in the process. Background technique [0002] Qinzhou Nixing pottery, as a traditional folk craft, has a history of more than 1,300 years. According to the historical records of Qinzhou, there were inscriptions unearthed in Qinzhou in the Qing Dynasty that proved to be Nixing products in the Tang Dynasty. It has a history of thousands of years until the late Qing Dynasty. Nixing pottery Received a Gold Medal at the 1915 Panama International Exposition. After the founding of the People's Republic of China, at the National Folk Arts and Crafts Exhibition held in Beijing in 1953, Qinzhou Nixing pottery, Jiangsu Yixing pottery, Yunnan Jianshui pottery, and Sichuan Rongchang pottery were named as my country's "Four Famous Pottery". Qinzhou Nixing pottery is characterized by unglazed polishing, and the fired and polished pottery presents infinitely changing "kiln-changing" colors, and is k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/32F27B19/04
Inventor 王廷革
Owner GUANGXI QINZHOU QIANQIU CERAMIC