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Preparation method of mullite funnelled brick

A technology of mullite and funnel bricks, which is applied in the field of preparation of mullite funnel bricks, can solve the problems of easy cracking and poor strength of funnel bricks, and achieve the effects of increasing strength, high application temperature and improving effect

Inactive Publication Date: 2018-01-19
浙江招通高温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The funnel brick is a protective device connecting the ladle and the casting. It has the functions of protecting the molten steel from overflowing and reducing the possibility of oxidation. The quality of the funnel brick directly affects the quality of the casting. problem with cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of mullite funnel brick, comprising the following steps:

[0022] 1) Prepare raw materials: 10 parts of mullite with 5-3mm particles, 10 parts of mullite with 3-1mm particles, 5 parts of mullite with particles smaller than 1mm, 15 parts of brown corundum with particles of 3-1mm, smaller than 1mm Granular brown corundum 10 parts, α-Al 2 o 3 6 parts of fine powder, 10 parts of clay powder, 30 parts of alumina with 5-3mm particles, 4 parts of binder;

[0023] 2) Preparation of mud material: First, put mullite with 5-3mm particles, mullite with 3-1mm particles, brown corundum with 3-1mm particles, and bauxite with 5-3mm particles into the planetary mixer for mixing. Grinding, after mixing for 20-30 minutes, add 2 parts of binder and continue mixing for 7-10 minutes, then add mullite with particles smaller than 1mm, brown corundum with particles smaller than 1mm, α-Al 2 o 3 After the powder, clay powder, and 1 part of binder, continue to mix and grin...

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PUM

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Abstract

The invention discloses a preparation method of mullite funnelled brick. The preparation method includes the steps of: 1) preparing raw materials; 2) preparing a mud stock; 3) shaping and drying the mud stock; and 4) sintering the mullite funnelled brick. The mullite funnelled brick has high strength, is high in applicable temperature, is anti-corrosion and has long service life. The product effectively solves problems indicated in background technologies.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a method for preparing mullite funnel bricks. Background technique [0002] The funnel brick is a protective device connecting the ladle and the casting. It has the functions of protecting the molten steel from overflowing and reducing the possibility of oxidation. The quality of the funnel brick directly affects the quality of the casting. There is a problem of cracking. Contents of the invention [0003] In view of the above problems, the present invention provides a method for preparing mullite funnel bricks. The prepared mullite funnel bricks have very good strength, high applicable temperature, corrosion resistance and long service life, which effectively solves the problems in the background technology. pointed out problem. [0004] The technical scheme adopted in the present invention is: [0005] A preparation method of mullite funnel brick, comprising the followi...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/185C04B35/622C04B35/63C04B35/626
Inventor 沈雍沈川朱文秋
Owner 浙江招通高温材料有限公司
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