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Production process of quartz ceramic crucible material

A technology of quartz ceramics and production technology, which is applied in the field of quartz ceramic crucibles, can solve problems such as reduced lifespan, and achieve the effects of improving compatibility, strong corrosion resistance, and improving corrosion resistance

Pending Publication Date: 2020-03-27
江苏康姆罗拉特种陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The crucible in the prior art can have high temperature resistance, but under saline-alkali conditions, coupled with high-temperature calcination, the service life will be significantly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of production technique of quartz ceramic crucible material of the present embodiment, comprises the following steps:

[0022] Step 1, the preparation of the matrix: mix the quartz sand and ceramics according to the weight ratio of 2:1, and then send them to the ball mill for ball milling. The ball milling speed is 1000r / min, and the ball milling time is 30min. React in medium for 20 minutes, the reaction temperature is 100°C, after the reaction is completed, centrifuge, wash with water, and dry;

[0023] Step 2, preparation of anti-corrosion additives: put zeolite into a ball mill for ball milling, pass the ball mill to 10 meshes, then send it into the bentonite dispersion liquid for hyperdispersion, the dispersion power is 300W, and the dispersion time is 25min, then filter and dry , to obtain anti-corrosion additives;

[0024] Step 3, weighing of auxiliary materials: 20 parts of diamond powder, 5 parts of aluminum silicate, 4 parts of pyrophyllite, and 4 part...

Embodiment 2

[0032] A kind of production technique of quartz ceramic crucible material of the present embodiment, comprises the following steps:

[0033] Step 1, the preparation of the matrix: mix the quartz sand and ceramics according to the weight ratio of 2:1, and then send them into the ball mill for ball milling. The ball milling speed is 1500r / min, and the ball milling time is 40min. React in medium for 30 minutes, the reaction temperature is 150°C, after the reaction is completed, centrifuge, wash with water, and dry;

[0034] Step 2, preparation of anti-corrosion additives: put zeolite into a ball mill for ball milling, pass the ball mill to 50 mesh, and then send it into the bentonite dispersion liquid for hyperdispersion, the dispersion power is 1000W, and the dispersion time is 35min, then filter and dry , to obtain anti-corrosion additives;

[0035] Step 3, weighing of auxiliary materials: 30 parts of diamond powder, 10 parts of aluminum silicate, 8 parts of pyrophyllite, and ...

Embodiment 3

[0043] A kind of production technique of quartz ceramic crucible material of the present embodiment, comprises the following steps:

[0044] Step 1, the preparation of the matrix: mix the quartz sand and ceramics according to the weight ratio of 2:1, and then send them into the ball mill for ball milling. The ball milling speed is 1250r / min, and the ball milling time is 35min. React in medium for 25 minutes, the reaction temperature is 125°C, after the reaction is completed, centrifuge, wash with water, and dry;

[0045] Step 2, preparation of anti-corrosion additives: add zeolite into a ball mill for ball milling, pass the ball mill to 30 meshes, and then send it into the bentonite dispersion liquid for hyperdispersion, the dispersion power is 700W, and the dispersion time is 30min, then filter and dry , to obtain anti-corrosion additives;

[0046] Step 3, weighing of auxiliary materials: 25 parts of diamond powder, 7.5 parts of aluminum silicate, 6 parts of pyrophyllite, an...

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Abstract

The invention discloses a production process of a quartz ceramic crucible material, wherein the production process comprises the following steps: step 1, preparation of a base body: mixing quartz sandand ceramic according to a weight ratio of 2:1, then sending the mixture into a ball mill, carrying out ball milling at a ball milling rotation speed of 1000-1500 r / min. The quartz ceramic crucible disclosed by the invention is prepared from quartz sand and ceramic as a base body; the base body raw material treated by a treatment liquid can be more easily matched with a corrosion-resistant auxiliary agent and an auxiliary material; therefore, the compatibility among the raw materials is improved; natrolite in the corrosion-resistant auxiliary agent is one of main mineral components of zeoliteore, and the natrolite is more easily mixed with quartz sand and ceramic through dispersing in bentonite; the diamond powder in the auxiliary material has quite high corrosion resistance, the corrosion resistance of the material can be remarkably improved by adding the diamond powder into the material, and the corrosion resistance of the material can be improved by matching the raw materials.

Description

technical field [0001] The invention relates to the technical field of quartz ceramic crucibles, in particular to a production process of quartz ceramic crucible materials. Background technique [0002] Quartz ceramic crucible, the full name is high-purity fused silica ceramic crucible (silica content ≥ 99.9%). It is a ceramic crucible made of high-purity fused silica. In general, its shape mainly has square and cylindrical shape. Among them, the square high-purity quartz crucible is used in the process of polysilicon ingot casting, as a container for polysilicon material and crystal growth; the circular high-purity quartz crucible is used in the process of pulling single crystals in monocrystalline silicon. High-purity fused silica has the characteristics of fine structure, low thermal conductivity, small thermal expansion coefficient, high dimensional accuracy of finished products, no deformation at high temperature, good thermal shock stability, good electrical properti...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B35/622C04B35/645
CPCC04B35/14C04B35/622C04B35/645C04B2235/3227C04B2235/3445C04B2235/3454C04B2235/3463C04B2235/349C04B2235/427C04B2235/602C04B2235/656C04B2235/6567C04B2235/9692
Inventor 张黎明
Owner 江苏康姆罗拉特种陶瓷有限公司
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