Preparation method of composite sagger

A technology of saggar and green body, which is applied in the field of preparation of composite saggar, can solve the problems of reduced service life of saggar, waste of resources, improvement, etc., and achieves the effects of improved compressive strength, improved compressive capacity, and simple preparation process

Inactive Publication Date: 2016-11-09
姚焕根
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, saggars, as containers for holding materials, are still widely used in ceramic pigment enterprises. In recent years, due to the rising costs of raw materials, fuel, labor, etc., the price of saggars has also increased significantly. However, the service life is decreasing, and the damage rate of saggers is 15-20% per kiln, resulting in serious waste of resources and economic losses.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of a composite saggar, comprising the following preparation steps:

[0026] 1) Prepare composite saggar raw material, the raw material of this saggar consists of: 115 parts of forsterite; 80 parts of mullite powder; 10 parts of potassium feldspar; 10 parts of cooked bauxite; 10 parts of sepiolite; 2 parts of montmorillonite 2 parts; aluminum phosphate 2 parts; zirconium silicate 2 parts; aluminum nitride 2 parts; high alumina fiber 2 parts;

[0027] 2) carry out wet ball milling after mixing each raw material, and form powder after ball milling and pass through a 100-mesh sieve for subsequent use;

[0028] 3) compacting molding, the ball-milled powder is granulated, compacted, compacted under a pressure of 50Mpa, kept for 2 hours, and demolded to obtain a saggar body;

[0029] 4) Pre-sintering the green body at 550°C, then quenching with water, quickly putting the green body into water for 25s; then putting the water-quenched greenbody into oil at ...

Embodiment 2

[0034] A preparation method of a composite saggar, comprising the following preparation steps:

[0035] 1) Prepare composite saggar raw material, the raw material of this saggar consists of: 85 parts of forsterite; 85 parts of mullite powder; 10 parts of potassium feldspar; 10 parts of cooked bauxite; 10 parts of sepiolite; 2 parts of montmorillonite 2 parts; aluminum phosphate 2 parts; zirconium silicate 2 parts; aluminum nitride 2 parts; high alumina fiber 2 parts;

[0036] 2) carry out wet ball milling after mixing each raw material, and form powder after ball milling and pass through a 100-mesh sieve for subsequent use;

[0037] 3) compacting molding, the ball-milled powder is granulated, compacted, compacted under a pressure of 50Mpa, kept for 2 hours, and demolded to obtain a saggar body;

[0038] 4) Pre-sintering the green body at 550°C, then quenching with water, quickly putting the green body into water for 25s; then putting the water-quenched greenbody into oil at 5...

Embodiment 3

[0043] A preparation method of a composite saggar, comprising the following preparation steps:

[0044] 1) prepare composite saggar raw material, the raw material composition of this saggar is: 135 parts of forsterite; 80 parts of mullite powder; 8 parts of potassium feldspar; 8 parts of cooked bauxite; 8 parts of sepiolite; 1 part of montmorillonite parts; 2 parts of aluminum phosphate; 2 parts of zirconium silicate; 1 part of aluminum nitride; 1 part of high alumina fiber;

[0045] 2) carry out wet ball milling after mixing each raw material, and form powder after ball milling and pass through a 100-mesh sieve for subsequent use;

[0046] 3) compacting molding, the ball-milled powder is granulated, compacted, compacted under a pressure of 50Mpa, kept for 2 hours, and demolded to obtain a saggar body;

[0047]4) Pre-sintering the green body at 550°C, then quenching with water, quickly putting the green body into water for 25s; then putting the water-quenched greenbody into o...

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Abstract

The invention relates to a preparation method of a composite sagger. The method adopts forsterite and mullite as the main raw materials, takes potassium feldspar, calcined bauxite, sepiolite, montmorillonite, aluminum phosphate, zirconium silicate, aluminum nitride and high aluminum fiber as the auxiliary materials, at the same time adopts the process of water quenching, oil cooling and post-treatment during preparation to improve the physical and chemical properties of the prepared product. The prepared sagger has the advantages of good thermal stability, strong compressive ability, corrosion resistance, and difficult cracking.

Description

technical field [0001] The invention belongs to the field of refractory saggars, in particular to a preparation method of a composite saggar. Background technique [0002] Saggar is one of the kiln furniture. In the process of firing ceramic ware, in order to prevent the gas and harmful substances from damaging and fouling the body and glaze, the ceramic ware and body are placed in a container made of refractory material, which is called a sagger. , also known as the box. [0003] The use of saggars for firing ceramics can not only increase the amount of firing, prevent the products from sticking, and improve the yield, but also have certain thermal conductivity and thermal stability, which can ensure the quality of ceramics. The shape of the saggar varies according to the shape of the utensil. The eggshell black pottery fired during the Longshan culture period in my country has used a special saggar. Two saggars for firing Longshan culture eggshell pottery were collecte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/16
CPCC04B35/16C04B35/66C04B2235/3217C04B2235/3427C04B2235/3445C04B2235/3463C04B2235/3472C04B2235/349C04B2235/3852
Inventor 姚焕根
Owner 姚焕根
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