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Flexible ceramic wear-resistant heat-proof dual-anticorrosive coating

A flexible ceramic and heavy-duty anti-corrosion technology, which is applied in heat-resistant heavy-duty anti-corrosion coatings and wear-resistant areas cured at room temperature. It can solve the problems of difficult low-temperature curing, high energy consumption, and low degree of industrialization, and achieve low resistance of the transmission medium and coating The effect of dense surface and dense coating structure

Inactive Publication Date: 2004-09-15
REAR SERVICE TECH EQUIP INST NAVY PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, wear-resistant ceramic coatings are mainly divided into two categories, one is powder coatings, such as the Chinese patent "High-strength anti-corrosion wear-resistant powder coatings and its coating method" (CN 00126503.2) requires that the workpiece be heated to 220-270 ° C, and the manufacturing The process, production and coating equipment are complicated, consume a lot of energy, and the cost is high; low temperature curing is difficult, let alone room temperature curing, there are certain restrictions on the shape and thickness of the material, and it is difficult to promote
Another class of wear-resistant ceramic coatings cured at room temperature, such as the Chinese invention patent "a heavy anti-corrosion wear-resistant ceramic coating" (CN 1325931), its ceramic powder is made of TiO 2 、Al 2 o 3 、Si 3 N 4 Composition, where Si 3 N 4 The low degree of industrialization and high price increase the cost of coatings, which greatly restricts its popularization and application.
[0003] Aiming at the current disadvantages of high cost and high price of wear-resistant ceramic coatings, a wear-resistant ceramic coating with high degree of industrialization in material selection, simple construction technology, dense coating, low permeability and good wear resistance has been invented.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The parts by weight of each composition of coating are:

[0033] Epoxy resin: 100 (of which: ordinary epoxy resin: 70; modified epoxy resin: 30);

[0034] The mixed solvent is toluene: 30; n-T alcohol: 20;

[0035] Alumina: 100;

[0036] Mullite: 50;

[0037] Precipitated barium sulfate: 50;

[0038] Mica iron oxide: 20;

[0039] After grinding, add 10 parts of ethylenediamine before use, and use it half an hour later. The paint is applied to a dust collector that has been used for a long time in a slightly acidic environment at 180°C. After nearly two years of actual use, the coating has a complete surface without falling off, excellent heat resistance and remarkable anti-corrosion effect.

Embodiment 2

[0041] The parts by weight of each composition of coating are:

[0042] Epoxy resin: 100 (of which: ordinary epoxy resin: 40; modified epoxy resin: 60);

[0043] The mixed solvent is toluene: 20; Methanol: 20; Ethyl acetate: 25

[0044] Alumina: 60;

[0045] Mullite: 120;

[0046] Talc powder: 80;

[0047] Zinc phosphate: 15;

[0048] After grinding, add 8 parts of phenolic hexamethylenediamine condensate before use, and use 2 parts of polyamide half an hour later. The coating was applied to the grinding wheel blades in the cooling water system of the power plant. After nearly two years of actual use, the coating surface was complete and did not fall off. Excellent wear resistance and remarkable anti-corrosion effect.

Embodiment 3

[0050] The parts by weight of each composition of coating are:

[0051] Epoxy resin: 100 (of which: ordinary epoxy resin: 50; modified epoxy resin: 50);

[0052] The mixed solvent is xylene: 35; n-butanol: 10;

[0053] Leveling agent: 5

[0054] Alumina: 70;

[0055] Mullite: 50;

[0056] Light calcium carbonate: 115

[0057] Zinc chromate: 8

[0058] After grinding, add 8 parts of polyamide before use, and use it half an hour later. The paint was used to paint the deflector tower. After nearly one year of actual use, the paint surface is complete and does not fall off. Excellent wear resistance and remarkable anti-corrosion effect.

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Abstract

The invention is a kind of flexible ceram wearing and heat resisting heavy corrosion preventing paint, which is made up of epoxy resin and several kinds of ceram powder, rust-protection paint and firming agent, the weights of each ingredient are: (1) epoxy resin: 100; (2) additive: 50-120; (3) rust protection paint: 8-25; (4) ceram powder: 100-200; (5) compound solvent: 40-70; paint: firming agent=(35-50):1. The paint needn't base coat, it can be painted directly or brushed on the surface of metal under normal temperature, it has excellent wearing and corrosion prevention performance, impact resisting performance and flexibility, it can insulate acid, alkali, salt, saline water. The surface is smooth; it can be applied to oil pipe, oil pot, and chemical device, ship, wheel vane, pump, dust catcher, etc.

Description

(1) Technical field [0001] The invention relates to a wear-resistant, heat-resistant heavy-duty anti-corrosion coating mainly composed of epoxy resin, various ceramic powders, anti-rust pigments and curing agents at room temperature. (2) Background technology [0002] At present, wear-resistant ceramic coatings are mainly divided into two categories, one is powder coatings, such as the Chinese patent "High-strength anti-corrosion wear-resistant powder coatings and its coating method" (CN 00126503.2) requires that the workpiece be heated to 220-270 ° C, and the manufacturing The process, production and coating equipment are complicated, consume a lot of energy, and the cost is high; low temperature curing is difficult, let alone room temperature curing, and there are certain restrictions on the shape and thickness of the material, making it difficult to promote. Another class of wear-resistant ceramic coatings cured at room temperature, such as the Chinese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08C09D163/00
Inventor 蔡森王贵森张松倪余伟黄洁李周波金日光
Owner REAR SERVICE TECH EQUIP INST NAVY PLA
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