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High temperature wear-resistant coating for metal surface, and its preparing mand using method

A high-temperature wear-resistant, metal surface technology, used in devices and coatings that apply liquid to the surface, can solve problems such as limited use range, difficult to apply, etc., to shorten maintenance time, reduce flue gas flow rate, and simple construction Effect

Active Publication Date: 2006-10-25
枣庄市新达节能技术开发有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although some metal parts are coated with high-temperature wear-resistant coatings to improve their service life, these coatings can only withstand high temperatures below 1000 degrees Celsius, which limits their scope of use, and some parts are not easy to apply; Metal spraying is used to enhance the wear resistance of metal parts, but metal spraying is only suitable for large-scale spraying and has its own limitations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The coating of the present invention is mainly composed of major ingredients and auxiliary materials in a ratio of 76:4, wherein the major ingredients are made up of adhesive, solvent and powder in a ratio of 30:6:40, and their compositions are respectively: in parts by weight, including:

[0035] 22 parts of 85% phosphoric acid; 3 parts of aluminum hydroxide;

[0036] 5 parts of water; 0.01 part of chromium oxide;

[0037] The main components of the solvent, in parts by weight, include: 6 parts of silica sol after dilution;

[0038] The main components of the powder, in parts by weight, include:

[0039] 10 parts of white corundum above 120 mesh 12 parts of zirconia with content above 60%

[0040] 8 parts of aluminum oxide 0.03 part of magnesium oxide;

[0041] The auxiliary materials mainly include coagulant and stainless steel wire, in parts by weight:

[0042] 4 parts of high alumina cement; 0.3 parts of stainless steel wire.

[0043] Its preparation method is:...

Embodiment 2

[0051] Coating of the present invention is mainly made up of main material and auxiliary material by 110:8 ratio, and wherein main material is made up of adhesive agent, solvent and powder again by 42:10:60 ratio, and their composition is respectively:

[0052] The main components of the adhesive, in parts by weight, include:

[0053] 28 parts of phosphoric acid with 85% concentration; 5 parts of aluminum hydroxide;

[0054] 8 parts of water; 0.02 parts of chromium oxide;

[0055] The main components of the solvent, in parts by weight, include: 10 parts of silica sol after dilution;

[0056] The main components of the powder, in parts by weight, include:

[0057] 18 parts of white corundum above 120 mesh 18 parts of zirconia with content above 60%

[0058] 12 parts of aluminum oxide 0.05 part of magnesium oxide;

[0059] The auxiliary materials mainly include coagulant and stainless steel wire, in parts by weight:

[0060] 7 parts of high alumina cement; 0.6 parts of stai...

Embodiment 3

[0066] Coating of the present invention mainly is made up of main material and auxiliary material by the ratio of 100:6, and wherein main material is made up of adhesive agent, solvent and powder by 37:8:50 example, and their composition is respectively:

[0067] The main components of the adhesive, in parts by weight, include:

[0068] 26 parts of phosphoric acid with 85% concentration; 4 parts of aluminum hydroxide;

[0069] 7 parts of water; 0.015 parts of chromium oxide;

[0070] The main components of the solvent, in parts by weight, include: 8 parts of silica sol after dilution;

[0071] The main components of the powder, in parts by weight, include:

[0072] 15 parts of white corundum above 120 mesh 14 parts of zirconia with content above 60%

[0073] 10 parts of aluminum oxide 0.04 part of magnesium oxide;

[0074] The auxiliary materials mainly include coagulant and stainless steel wire, in parts by weight:

[0075] 6 parts of high alumina cement; 0.5 parts of st...

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Abstract

The invention discloses a high temperature antifriction dope for metal surface and the using method. It is made up from 85% thickness phosphoric acid 22-28 portions, aluminum hydroxide 3-5 portions, water 5-8 portions, chrome 0.01-0.02 portions, thinned silica solution 6-10 portions, white steel 10-18 portions, zirconia 12-18 portions, alumina 8-12 portions, magnesia 0.03-0.05 portions, and coagulant 4-7 portions and stainless steel wire 0.3-0.6 portions.

Description

technical field [0001] The invention relates to a high-temperature wear-resistant paint, in particular to a high-temperature wear-resistant paint for metal surfaces and its preparation and use methods. Background technique [0002] The wear of the heating surface of coal-fired boilers in thermal power plants has always been the main factor that threatens the safe operation of the unit. With the increase of the operating time, the wear of the heating surface of the boiler continues to increase. The traditional anti-wear measures can only reduce the wear of the heating surface, but cannot play a fundamental role in anti-wear. Especially for bare-tube economizers and cold section reheaters, a comprehensive inspection is carried out during major repairs, and all pipes with a worn wall thickness of more than 1mm are replaced, and a maximum of 128 pipe sections have been replaced. During the repair period, it is necessary Overtime, heavy workload, poor working environment. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00B05D7/14C09D5/00
Inventor 孙新国杨其栋孙建华
Owner 枣庄市新达节能技术开发有限责任公司
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