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High-temperature corundum-porzite pushing plate and manufacture method thereof

A technology of mullite and corundum, applied in the field of high-temperature corundum-mullite push plate and its manufacturing, can solve the problems of low high temperature strength, low life, poor wear resistance, etc., and achieve stable chemical properties, good development, and density. big effect

Active Publication Date: 2011-01-05
SINOSTEEL LUOYANG INST OF REFRACTORIES RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned domestic high-temperature corundum-mullite push plate with low high-temperature strength, poor wear resistance, and low life-span defects, and provide a high-temperature corundum-mullite push plate with high comprehensive performance and low production cost and its Manufacturing method

Method used

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  • High-temperature corundum-porzite pushing plate and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: by mass percent as

[0027] Fused mullite particles≤3mm 30%;

[0028] Fused white corundum particles ≤ 2mm 15%;

[0029] Andalusite particles≤0.5mm 20%;

[0030] Fused white corundum powder≤100 mesh 10%;

[0031] Fused mullite powder≤325 mesh 18%;

[0032] Alumina fine powder 5%;

[0033] Ultrafine fused silica powder 2%;

[0034] Add 3% PVA aqueous solution as binding agent, and the process steps are as follows:

[0035] 1) Mixing: Put the raw material components into the mixer according to the mass percentage and mix them evenly;

[0036] 2) Trapped material: put the above-mentioned homogeneously mixed material in a closed state for 12 hours;

[0037] 3) Molding: put the prepared material into the mold after weighing according to the individual weight of the green body;

[0038] 4) Drying: The molded green body is first dried naturally for 2 days, and then dried in an electric heating dryer at 150°C for 36 hours;

[0039] 5) Firing: after drying...

Embodiment 2

[0040] Embodiment 2: by mass percent as

[0041] Fused mullite particles≤3mm 35%;

[0042] Tabular alumina particles ≤ 2mm 20%;

[0043] Andalusite particles≤0.5mm 15%;

[0044] Tabular corundum powder≤100 mesh 5%;

[0045] Fused mullite powder≤325 mesh 13%;

[0046] Alumina fine powder 9%;

[0047] Ultrafine fused silica powder 3%;

[0048] Add 4% PVA aqueous solution as binding agent, and the process steps are as follows:

[0049] 1) Mixing: Put the raw material components into the mixer according to the mass percentage and mix them evenly;

[0050] 2) Trapped material: put the above-mentioned homogeneously mixed material in a closed state for 18 hours;

[0051] 3) Molding: put the prepared material into the mold after weighing according to the individual weight of the green body;

[0052] 4) Drying: The molded green body is dried naturally for 2 days, and then dried in an electric heating dryer at 200°C for 30 hours;

[0053] 5) Firing: after drying, firing at 1700...

Embodiment 3

[0054] Embodiment 3: by mass percent as

[0055] Fused mullite particles ≤ 3mm 40%;

[0056] Fused white corundum particles≤2mm 10%;

[0057] Andalusite particles≤0.5mm 10%;

[0058] Fused white corundum powder≤100 mesh 15%;

[0059] Fused mullite powder≤325 mesh 5%;

[0060] Alumina fine powder 15%;

[0061] Ultrafine fused silica powder 5%;

[0062] Add 5% pulp solution as a binding agent, and the process steps are as follows:

[0063] 1) Mixing: Put the raw material components into the mixer according to the mass percentage and mix them evenly;

[0064] 2) Trapped material: put the above-mentioned uniformly mixed material in a closed state for 24 hours;

[0065] 3) Molding: put the prepared material into the mold after weighing according to the individual weight of the green body;

[0066] 4) Drying: The formed green body is dried naturally for 3 days, and then dried in an electric heating dryer at 250°C for 24 hours;

[0067] 5) Firing: after drying, firing at 175...

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Abstract

The invention belongs to the technical field of fireproof materials and provides a high-temperature corundum-porzite pushing plate and a manufacture method thereof. The pushing plate is prepared by using fused porzite, corundum, andalusite, alumina powder and ultrafine fused silica powder as raw materials through mixing, tapping, forming, drying and finally sintering at a high temperature. The pushing plate manufactured by utilizing the invention has higher high-temperature strength, wear resistance, favorable creep resistance, favorable product use performance similar to imported products and low production cost. The popularization of the technical scheme can effectively decrease the production cost of domestic high-temperature ceramic industry.

Description

technical field [0001] The invention belongs to the technical field of refractory material preparation, and mainly provides a high-temperature corundum-mullite push plate and a manufacturing method thereof. Background technique [0002] With the continuous development of my country's high-temperature special ceramics industry, the high-temperature push plate kiln has been favored by ceramic substrates, ceramic knives, structures, etc. The popularity of ceramics and other production enterprises has been widely used, and the demand for push plates required by push plate kilns has also increased rapidly. The firing temperature of high-temperature special ceramics is generally above 1550°C. Traditional clay, high-alumina and silicon carbide push plates cannot meet the requirements of use. At present, high-temperature corundum-mullite push plates are commonly used. Several domestic companies have produced this type of push board, but due to lack of sufficient research on raw mate...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 周会俊刘鹏王龙光
Owner SINOSTEEL LUOYANG INST OF REFRACTORIES RES
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