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Insulating wear-resistant anti-corrosion multifunctional coating for track and preparation method thereof

A multi-functional, rail technology, applied in anti-corrosion coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc. Anti-corrosion, weak anti-corrosion performance and other problems, to achieve the effect of improving the inhibition effect, high economic value, and high insulation strength

Active Publication Date: 2021-01-22
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent with the application number 200910195533.9 discloses a kind of electrical steel insulating coating and its preparation method and coating method. Its main components are aluminum dihydrogen phosphate, silica sol, phosphoric acid, magnesium oxide, rare earth-containing nitrate additive, and silane coupling agent. and water, but the patent uses an inorganic binder, the coating has a certain porosity, and the anti-corrosion performance is relatively weak
The patent application number 201811598877.X discloses an insulating coating and its application method. The main components are aliphatic polyamine, toughening agent, diluent, coupling agent, polyurethane modified epoxy resin, etc., which are mainly used in track In the traffic screen door, but the wear amount of the insulating coating prepared by the patent is more than 12mg, and the wear resistance is poor
The insulating coating formula in the above patents does not have the multi-functionality of insulation, wear resistance and anticorrosion, and cannot meet the comprehensive actual needs of track insulation, wear resistance and anticorrosion.

Method used

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  • Insulating wear-resistant anti-corrosion multifunctional coating for track and preparation method thereof
  • Insulating wear-resistant anti-corrosion multifunctional coating for track and preparation method thereof
  • Insulating wear-resistant anti-corrosion multifunctional coating for track and preparation method thereof

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preparation example Construction

[0050] The invention is prepared by adding hard fillers such as silicon carbide and superfine alumina and soft fillers such as iron red, precipitated barium sulfate and kaolin into the elastic epoxy resin system, and has excellent insulation, wear resistance and anticorrosion properties. The preparation method of the insulating, wear-resistant and anti-corrosion multifunctional coating comprises the following steps:

[0051] Step 1. Material preparation

[0052] Weigh each component according to the number of parts to be measured, and set aside;

[0053] Step 2. Drying of filler

[0054] Place the silicon carbide, ultrafine alumina, iron red, precipitated barium sulfate and kaolin weighed in step 1 in a drying oven at a temperature of 110±5°C for 2 to 12 hours, and cool naturally to room temperature. Each stuffing is bagged and sealed for standby, and marked for standby;

[0055] Step 3, the preparation of ingredient A

[0056] Add the epoxy resin, toughening agent, disper...

Embodiment 1

[0063] Table 1 is the coating formula of embodiment 1

[0064] Table 1

[0065]

[0066] The preparation method of present embodiment coating is as follows:

[0067] 1. Preparation of ingredients A

[0068] (1) Drying treatment of filler

[0069] According to the parts by weight in Table 1, weigh silicon carbide, ultra-fine alumina, iron red, precipitated barium sulfate and kaolin, respectively, and place them in a drying oven at a temperature of 110°C for 8 hours, and then naturally cool to room temperature. , bagging, sealing, and labeling each filler separately;

[0070] (2) Preparation of ingredient A

[0071] According to the parts by weight in Table 1, take epoxy resin, toughening agent, dispersant, leveling agent and thixotropic agent, and add 70% of the solvent mass into the disperser, and carry out low-speed dispersion treatment at 700rpm for 30min , after that, add dried silicon carbide, superfine alumina, iron red, precipitated barium sulfate and kaolin, and...

Embodiment 2

[0077] Table 2 is the coating formula of embodiment 2

[0078] Table 2

[0079]

[0080] The preparation method of present embodiment coating is as follows:

[0081] 1. Preparation of ingredients A

[0082] (1) Drying treatment of filler

[0083] According to the parts by weight in Table 1, weigh silicon carbide, ultrafine alumina, iron red, precipitated barium sulfate, and kaolin, respectively, and place them in a drying oven at a temperature of 115°C for 2 hours, and then naturally cool to room temperature. , bagging, sealing, and labeling each filler separately;

[0084] (2) Preparation of ingredient A

[0085] According to the parts by weight in Table 1, take epoxy resin, toughening agent, dispersant, leveling agent and thixotropic agent, and add 65% of the solvent mass into the disperser, and carry out low-speed dispersion treatment at 900rpm for 5min , after that, add dried silicon carbide, ultra-fine alumina, iron red, precipitated barium sulfate and kaolin, and...

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Abstract

The invention relates to an insulating wear-resistant anticorrosive paint for tracks, which is prepared by adding silicon carbide, ultrafine aluminum oxide, iron oxide red, precipitated barium sulfateand the like as fillers into a flexible epoxy resin system and carrying out high-speed dispersion, grinding and ultrasonic treatment, and has the characteristics of high insulativity, excellent wearresistance, excellent salt spray resistance and easiness in construction. The stray current suppression effect and the corrosion resistance of the steel rail are greatly improved, and the steel rail can be applied to tramcar rails, subway rails, railway rails and the like, can also be popularized and applied to ship and ocean engineering steel structures, and has high economic value and wide prospects.

Description

technical field [0001] The invention relates to the technical field of functional coatings, in particular to an insulating, wear-resistant and anti-corrosion multifunctional coating for rails and a preparation method thereof. Background technique [0002] Tram tracks and subway tracks are prone to stray currents during operation, which not only consumes electrical energy, but also easily leads to electrochemical corrosion of metal structures near the tracks (such as gas pipes, water supply pipes, etc.). When the electrochemical corrosion is serious, it can cause damage to the pipe wall near the track, resulting in air leakage, water leakage and other consequences. At the same time, the locomotive rail itself is also prone to rust, which affects its service life. In order to suppress the stray current of the locomotive track, the existing technology mainly adopts the scheme of wrapping the rail with flexible material, but a large number of cracks will appear in the joints of ...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D163/04C09D175/14C09D5/08C09D7/61C09D7/65C09D5/25
CPCC09D163/00C09D163/04C09D5/08C09D7/61C09D7/65C09D5/00C08K2201/005C08K2003/2227C08K2003/3045C08L2205/05C08L2205/04C08L2205/03C08L75/14C08K3/00C08K3/34C08K3/22C08K3/30C08K3/346
Inventor 苏孟兴王晶晶张黎黎鄢剑星
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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