Oil drop glaze preparation method

A technology of oil drop and glaze slurry, which is applied in the field of oil drop glaze preparation, can solve the problems of narrow firing range, very sensitive temperature, and difficulty in industrial production, and achieve uniform size and distribution of oil droplets, simple process control, and good repeatability

Inactive Publication Date: 2006-05-10
SHAANXI UNIV OF SCI & TECH
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, all use SiO 2 -Al 2 o 3 -Fe 2 o 3 -CaO-MgO-K 2 O-Na 2 O-P 2 o 5 Glaze composition system, where P 2 o 5 Is the main phase-separation raw material, lacking P 2 o 5 It is difficult to form the effect of oil droplets on the glaze, even if it can produce oil droplets, it is difficult to control the size and distribution of the oil droplets, which will affect the decorative effect of the oil droplets; second, the current preparation temperature is relatively high, generally above 1230°C. Oil droplets are generated, and the firing range is

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: at first by mass percentage by the potassium feldspar of 69%, 9% boundary brand soil, the talcum of 2.2%, the red lead oxide of 14.5%, the vanadium pentoxide of 0.8%, the iron oxide of 3% and 1.5% % copper oxide is mixed to form a mixture; it is added into the grinder according to the mass ratio of mixture: grinding ball: water=1:2:0.8, while adding carboxymethyl cellulose with a mass percentage of 0.1% of the mixture as a slurry regulator for grinding After the grinding is completed, pass through a 220-mesh sieve to make a glaze slurry; apply the glaze slurry to the surface of the ceramic dry body, control the coating thickness of the glaze slurry to 0.3mm, and then dry it at 40°C; dry the glazed body after drying Put the body into an electric furnace, and keep it in the air oxidation atmosphere for 0.5 hours in the temperature range of 1160 ° C; after natural cooling, the silver oil drop glaze can be obtained at room temperature.

Embodiment 2

[0010] Embodiment 2: first by mass percentage by the potassium feldspar of 70%, 7% boundary brand soil, the talc of 2.6%, the red lead oxide of 15%, the vanadium pentoxide of 1.5%, the manganese oxide of 0.6%, 3 % of iron oxide and 0.3% of copper oxide are mixed to form a mixture; by mixture: grinding balls: water=1:2:0.8 mass ratio is added in the grinder, while adding the carboxymethyl cellulose of mixture mass percentage 0.2% as Grind the slurry regulator, pass through a 220-mesh sieve to make a glaze slurry after the grinding is completed; apply the glaze slurry on the surface of the ceramic dry body, control the coating thickness of the glaze slurry to 0.8mm, and then dry it at 80°C; The dried glazing body is put into an electric furnace, in the temperature range of 1220 °C, at H 2 Keep warm for 1 hour under reducing atmosphere; after natural cooling, silver oil drop glaze can be obtained at room temperature.

Embodiment 3

[0011] Embodiment 3: at first by mass percentage 69% potassium feldspar, 8% boundary brand soil, 2.5% talc, 15.5% red lead oxide, 2% vanadium pentoxide and 3% iron oxide are mixed into a mixture; by mixture: grinding balls: water = 1:2:0.8 mass ratio into the grinder, while adding 0.3% carboxymethyl cellulose mixture mass percent as a slurry conditioner to grind, grinding after 220 Mesh sieve to make glaze slurry; apply the glaze slurry on the surface of the ceramic dry body, control the coating thickness of the glaze slurry to 1.2mm, and then dry it at 60°C; put the dried glaze body into the electric furnace, In the temperature range of 1200°C, keep it warm for 2 hours in a CO reducing atmosphere; after natural cooling, the golden oil drop glaze can be obtained at room temperature.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for preparation of a drop glaze, which contains: mixing potash feldspar, terminus earth, talc, red lead oxide, vanadic anhydride, manganese oxide, ferric oxide and copper oxide; adding carboxymethyl cellulose as a paste regulator and grinding, sifting by 220 meshes sifter to prepare slip glaze; coating the surface of dry billet of pottery with the slip glaze, drying; putting the dried billet into a electric stove, keeping temperature for 0.5-2 hours in 1160-1220Deg. C in air oxidizing atmosphere or H2 and CO reducing atmosphere; cooling down naturally to the room temperature. The invention is characterized in that drop glaze can be prepared in a low temperature and a wide sintering temperature; the technique is simple to control, is repeatable and suitable for kinds of pottery billet; the usage of ferric oxide raw material, and there is no need of adding bone ash and P2O5; it can prepare golden and silver drop glaze, and the drop on the glaze has uniform size and distribution, and the glaze is smooth.

Description

technical field [0001] The invention relates to a preparation method of oil drop glaze. Background technique [0002] Oil drop glaze is one of the most precious glazes in the Southern Song Dynasty in my country. It is mainly produced in Jian'an kiln in Fujian and Jizhou kiln in Jiangxi. It is called "raindrop glaze", and it is called oil drop Tianmu internationally. Its glaze surface is characterized by many small silver-gray or ochre-colored dots with metallic luster appearing on the black glaze surface, like "the dark night sky is full of stars", "the golden light shines when filled with tea, and the silver light shines when filled with water". ", also like oil on the surface of calm water. Because of its rich color, dignified, simple, and unique decorative effect, it has a long-standing reputation in the world and is deeply loved by people. [0003] Oil drop glaze has the saying of "the mystery of China's strange ceramics". Ancient and modern, Chinese and foreign, are ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B41/86C04B33/34
Inventor 黄剑锋曹丽云陈东旭吴建鹏贺海燕张国运邓飞马小波
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap