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Corrosion-resistant high-strength ceramic roller and preparation method thereof

A ceramic roller, high-strength technology, applied in the field of ceramic rollers, can solve the problems of insufficient corrosion resistance, limited high temperature resistance of quartz ceramics, improved strength, etc., achieve good corrosion resistance and high strength performance, and solve the decrease in strength , the effect of improving high temperature resistance

Active Publication Date: 2022-03-25
LIANYUNGANG SUNLIGHT QUARTZ CERAMICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the problems of limited high temperature resistance, insufficient corrosion resistance and strength to be improved of quartz ceramics existing in the prior art, the purpose of the present invention is to provide a corrosion-resistant high-strength ceramic roller and its preparation method

Method used

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  • Corrosion-resistant high-strength ceramic roller and preparation method thereof

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preparation example Construction

[0039] In the preparation process of niobium nitride-coated scandium boride microspheres, scandium trioxide and boron trioxide are wet-ground first, then spray-dried to form a uniformly mixed powder, and then sintered at high temperature to prepare boride Scandium nanopowder; then, by using the polymer produced by the reaction of melamine and formaldehyde as an organic coating, it is combined with scandium boride nanopowder to form a microsphere structure; then the scandium boride organic composite microsphere is mixed with the acidic solution of niobium salt, In this way, niobium ions are evenly adsorbed on the surface and inside of the microspheres; then the microspheres adsorbed with niobium ions are sintered under high temperature conditions, and finally the polymer decomposes, and the niobium ions form niobium nitride to coat the surface of the microspheres .

[0040] During the sintering process of niobium / scandium boride organic composite microspheres, in the atmosphere...

Embodiment 1

[0044] A corrosion-resistant high-strength ceramic roller, comprising a ceramic roller body and a corrosion-resistant high-strength coating arranged on the surface of the ceramic roller body; wherein, the corrosion-resistant high-strength coating is calculated in parts by weight and includes the following components:

[0045] 64 parts of aluminum oxide powder, 28 parts of silicon dioxide powder, 13 parts of niobium nitride-coated scandium boride microspheres, 1.2 parts of polyvinyl alcohol, 2 parts of absolute ethanol and 3 parts of deionized water.

[0046] Wherein, the body of the ceramic roller is prepared by using quartz sand with a purity higher than 99.9%; the thickness of the anti-corrosion high-strength coating is 1.5 mm.

[0047] The purity of silica powder is higher than 99.9%, and the particle size range of silica powder is 0.5-1μm, 1-5μm and 5-10μm; among them, 0.5-1μm particle size, 1-5μm particle size and 5-10μm particle size The weight ratio of diameter is 1:1.3...

Embodiment 2

[0065] A corrosion-resistant high-strength ceramic roller, comprising a ceramic roller body and a corrosion-resistant high-strength coating arranged on the surface of the ceramic roller body; wherein, the corrosion-resistant high-strength coating is calculated in parts by weight and includes the following components:

[0066] 55 parts of aluminum oxide powder, 22 parts of silicon dioxide powder, 10 parts of niobium nitride coated scandium boride microspheres, 0.5 parts of carboxymethyl cellulose fiber, 1 part of absolute ethanol and 2 parts of deionized water.

[0067] Wherein, the body of the ceramic roller is prepared by using quartz sand with a purity higher than 99.9%; the thickness of the anti-corrosion high-strength coating is 1mm.

[0068] The purity of silica powder is higher than 99.9%, and the particle size range of silica powder is 0.5-1μm, 1-5μm and 5-10μm; among them, 0.5-1μm particle size, 1-5μm particle size and 5-10μm particle size The weight ratio of diameter ...

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Abstract

The invention discloses an anti-corrosion high-strength ceramic roller bar which comprises a ceramic roller bar body and an anti-corrosion high-strength coating arranged on the surface of the ceramic roller bar body. Wherein the corrosion-resistant high-strength coating comprises the following components in parts by weight: 55-78 parts of aluminum oxide powder, 22-34 parts of silicon dioxide powder, 10-16 parts of niobium nitride coated scandium boride microspheres, 0.5-2 parts of a binder, 1-3 parts of absolute ethyl alcohol and 2-4 parts of deionized water. According to the corrosion-resistant high-strength ceramic roller rod prepared by the preparation method disclosed by the invention, the corrosion-resistant high-strength coating is arranged on the surface of conventional quartz ceramic, so that the quartz ceramic is protected, and the finally prepared ceramic roller rod has relatively good corrosion resistance and high strength performance. The high temperature resistance of the quartz ceramic can also be improved, and the problem that the strength of the quartz ceramic is reduced at the temperature of l1O0 DEG C or above is solved.

Description

technical field [0001] The invention relates to the field of ceramic rollers, in particular to a corrosion-resistant high-strength ceramic roller and a preparation method thereof. Background technique [0002] Quartz ceramic rollers are mainly used in glass high-temperature transmission mechanisms of glass tempering furnaces. The main advantages of using quartz ceramic rollers are: 1. Low thermal conductivity, small heat loss, and high uniformity of furnace temperature; 2. Hardness and The glass is close and will not scratch the glass; 3. The material is light and rigid, which can ensure the flatness of the glass. Therefore, quartz ceramic rollers are widely used in tempered glass furnaces. One of the biggest characteristics of quartz ceramics is that its flexural and compressive strength will increase greatly with the rise of temperature below 1100°C, but its strength will decrease after 1100°C, which also limits the strength of quartz ceramics. The further development of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/87
CPCC04B41/87C04B41/507C04B41/009C04B41/5031C04B41/5035C04B41/5062C04B41/4539C04B41/4578C04B41/0072C04B35/14
Inventor 吕金虎
Owner LIANYUNGANG SUNLIGHT QUARTZ CERAMICS CO LTD
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