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Firing method of traditional black-glazed silver oil-drop Jianzhan

A black glaze, traditional technology, applied in the firing field of Jianzhan, can solve the problems of difficult control formula, firing atmosphere and temperature curve, crystal pattern does not display, high difficulty of firing, etc., to achieve good vitrification effect, three-dimensional Strong sense and good stability

Active Publication Date: 2020-09-01
福建省开河窑建盏文化发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the firing process of Jianzhan, the firing process is very difficult, and it is often difficult to control the formula, firing atmosphere and temperature curve, and the following defects often occur: the embryo body cracks, the glaze sticks to the bottom, there are air bubbles, and the glaze surface jumps. The glaze and crystal patterns are not displayed or are not clear, the patterns are dim, etc., and the yield is very low

Method used

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  • Firing method of traditional black-glazed silver oil-drop Jianzhan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The firing method of the traditional black-glazed silver oil-drop Jianzhan includes the following steps:

[0031] (1) Green body preparation: take 50 parts by weight of kaolin, 30 parts by weight of field soil, and 20 parts by weight of red clay, mix them in a blender and stir; pass through a 100-mesh sieve after stirring evenly to obtain mud; press filter the mud to obtain a filter cake; Put the filter cake into the mud refiner to vacuumize the mud, the pressure of mud refining is 0.1MPa, repeat the mud refining 3 times, each time 15s, to get the mud material;

[0032] (2) Forming of the blank body: the mud material is manually drawn into the blank, dried, and trimmed;

[0033] (3) Bisque firing of the green body; during biscuit firing, the furnace door is opened with a gap width of 8-10 cm, and the furnace temperature rises from normal temperature to 300°C. Then close the furnace door, the temperature continues to rise to 850 ° C, keep warm for 6 hours, stop the furn...

Embodiment 2

[0044] The firing method of the traditional black-glazed silver oil-drop Jianzhan includes the following steps:

[0045] (1) Green body preparation: take 45 parts by weight of kaolin, 30 parts by weight of field soil, and 18 parts by weight of red clay, mix them in a blender and stir; pass through an 80-mesh sieve after stirring evenly to obtain mud; press filter the mud to obtain a filter cake; Put the filter cake into the mud refining machine to vacuumize the mud, the pressure of the mud refining is 0.08MPa, repeat the mud refining 4 times, each time for 10s, and get the mud material;

[0046] (2) Forming of the blank body: the mud material is manually drawn into the blank, dried, and trimmed;

[0047] (3) Bisque firing of the green body; during biscuit firing, the furnace door is opened with a gap width of 8-10 cm, and the furnace temperature rises from normal temperature to 290°C. Then close the furnace door, the temperature continues to rise to 840 ° C, keep warm for 7 h...

Embodiment 3

[0058] The firing method of the traditional black-glazed silver oil-drop Jianzhan includes the following steps:

[0059] (1) Green body preparation: take 55 parts by weight of kaolin, 27 parts by weight of field soil, and 24 parts by weight of red clay, mix them and add them to a blender for stirring; pass through a 90-mesh sieve after stirring evenly to obtain mud; press filter the mud to obtain a filter cake; Put the filter cake into the mud refiner to vacuumize the mud, the pressure of the mud is 0.09MPa, repeat the mud refining 6 times, each time 20s, to get the mud;

[0060] (2) Forming of the blank body: the mud material is manually drawn into the blank, dried, and trimmed;

[0061] (3) Biscuit firing; during biscuit firing, the furnace door is opened with a gap width of 8-10 cm, and the furnace temperature rises from normal temperature to 305°C. Then close the furnace door, the temperature continues to rise to 830 ° C, keep warm for 8 hours, stop the furnace, and when ...

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Abstract

The invention discloses a firing method of conventional black glaze silver oil drop Jianzhan. The firing method includes following steps: preparing a blank; forming the blank; biscuit-firing the blank; preparing glaze; glazing the blank after biscuit-firing; air-drying; putting the blank after being glazed into a kiln, and starting firing, wherein the first stage of firing is temperature rising, the second stage of firing is constant temperature holding, the third stage of firing is temperature rising, the fourth stage of firing is constant-temperature reduction, and the fifth stage of firingis blowing-out, cooling and taking the blank out of the kiln. Processes of firing formulation, firing atmosphere and temperature curve are clear, easy to master and high in stability and yield; crystal spots with silver gloss are irregularly distributed on glaze, spot lines are clear and high in three-dimensionality, and the Jianzhan is crystal like oil drops and has good artistic aesthetic sense.

Description

technical field [0001] The invention relates to the technical field of porcelain, in particular to a firing method for Jianzhan. Background technique [0002] Black-glazed porcelain is a strange flower in the history of Chinese ceramics, well-known at home and abroad. Jianzhan is a typical representative of black-glazed porcelain. The colorful light phenomenon of Jianzhan is natural, mysterious and refined, and the markings of Jianzhan have obvious three-dimensional and layered feelings. What Jianzhan pursues is the artistic effect formed naturally. Its glaze pattern is not artificially painted, but formed under strict formula technology, special firing atmosphere and firing temperature curve. The three are indispensable. The artistic effect formed by this kind of product has no sense of artificial carving at all, and is completely a display of the essential beauty of the product. [0003] At present, in the firing process of Jianzhan, the firing process is very difficult,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/32C04B33/13C03C8/00C04B41/86
CPCC03C8/00C04B33/131C04B33/32C04B41/009C04B41/5022C04B41/86C04B2235/6562C04B2235/6567C04B2235/661C04B41/4539C04B41/0072
Inventor 李细妹
Owner 福建省开河窑建盏文化发展有限公司
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