Manufacturing technology for nixing pottery heated with open fire

A production process, the technology of Nixing pottery, which is applied in the field of Nixing pottery production process, can solve the problems of cooking utensils, etc., and achieve the effect of good mechanical strength and excellent heat resistance.

Inactive Publication Date: 2017-06-13
QINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, Nixing pottery utensils can only be used as daily-use ceramic utensils, such as conventional cups, saucers, teapots, vases, and cannot be used as cooking utensils under open flame conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) Preparation of billet: 600kg of Dongni, 400kg of Xini, MnCl 2 10kg is mixed evenly, and after grinding, pressure filtration, vacuum mud refining and aging processes, the billet is obtained;

[0015] 2) Body molding: make the body into 100 jar bodies with outer diameter=250mm and capacity=3000ml;

[0016] 3) Drying of the green body: drying the green body;

[0017] 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 700°C at a rate of 80°C per hour, and then The heating rate is increased to 1150°C at a rate of 40°C per hour, stop heating, and leave the kiln after cooling; during the heating process, when the temperature rises to 700°C, pressurize the green body to 10MPa, when the temperature rises to 1100°C, Discontinue pressurization.

[0018] Fill the Nixing pottery products one by one with water and put them directly into the gas stove for heating without c...

Embodiment 2

[0020] 1) Preparation of billet: 600kg of Dongni, 400kg of Xini, MnCl 2 30kg is mixed evenly, and after grinding, pressure filtration, vacuum mud refining and aging processes, the billet is obtained;

[0021] 2) Body molding: make the body into 100 jar bodies with outer diameter=250mm and capacity=3000ml;

[0022] 3) Drying of the green body: drying the green body;

[0023] 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 700°C at a rate of 100°C per hour, and then The heating rate of 60°C per hour is raised to 1200°C, stop heating, and leave the kiln after cooling; during the heating process, when the temperature rises to 700°C, pressurize the green body to 15MPa, when the temperature rises to 1100°C, Discontinue pressurization.

[0024] Fill the Nixing pottery products one by one with water and put them directly into the gas stove for heating without cracking, and...

Embodiment 3

[0026] 1) Preparation of billet: 600kg of Dongni, 400kg of Xini, MnCl 2 50kg is mixed evenly, and after grinding, pressure filtration, vacuum mud refining and aging processes, the billet is obtained;

[0027] 2) Body molding: make the body into 100 jar bodies with outer diameter=250mm and capacity=3000ml;

[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 300°C at a rate of 25°C per hour, and then increase the temperature to 700°C at a rate of 90°C per hour, and then The temperature rises at a rate of 50°C per hour to 1180°C, stops heating, and leaves the kiln after cooling; during the heating process, when the temperature rises to 700°C, pressurize the green body to 12MPa, and when the temperature rises to 1100°C, Discontinue pressurization.

[0030] Fill the Nixing pottery products one by one with water and put them directly into the gas stove for heating without cra...

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Abstract

The invention discloses a manufacturing technology for nixing pottery heated with open fire. The manufacturing technology comprises the following steps: preparing a blank; forming the blank; repairing the blank; drying the blank; and baking the blank. The blank is prepared from the following raw materials in parts by weight: 6-4 parts of east mud, 4-6 parts of west mud and 0.1-0.5 part of MnCl. The blank baking comprises the following steps: feeding the blank into a kiln, pressurizing the blank to 10-15MPa when the temperature is increased to 700 DEG C in a temperature rising process and stopping pressurizing treatment when the temperature is increased to 1100 DEG C. The nixing pottery manufactured according to the invention has excellent spalling resistance and better mechanical strength; the thermal expansion coefficient can be reduced to below 2*10-6 / DEG C (Rt-800 DEG C); the nixing pottery can be directly applied to various heat sources, is durable and non-cracking and can meet the standard requirement of QB / T2580-2002 'Fine Ceramics Cooker'.

Description

technical field [0001] The invention relates to a manufacturing process of Nixing pottery, in particular to a manufacturing process of Nixing pottery which can be heated under an open flame. Background technique [0002] Nixing pottery in Qinzhou, Zisha pottery in Yixing, Rongchang pottery in Sichuan and Jianshui pottery in Yunnan are also known as the four famous pottery in China. The production process of Nixing pottery includes blank preparation, blank molding, blank trimming, blank drying, blank decoration, blank firing and polishing. The raw materials used in Nixing pottery include Dongni and Xini. The Dongni is selected from the east of the Qinjiang River across the urban area of ​​Qinzhou City. It is a soft clay with a yellowish-white color and a small amount of quartz sand. It has good plasticity and is easy to shape. , but the refractoriness is quite low, and it is easy to deform when fired alone; Xini is the soil in the area west of Qinjiang River. It is a kind of...

Claims

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Application Information

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IPC IPC(8): C04B33/13C04B33/32
CPCC04B33/131C04B33/32C04B33/326C04B35/185C04B2235/444C04B2235/9607
Inventor 钟恒成高信雄闭宗庭刘衡志孙继旋袁丽娟鲁敏王宁梁鸿展余居树徐帅
Owner QINZHOU UNIV
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