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Iron-based composite structure high-temperature anti-corrosion and anti-skid coating and preparation method thereof

A composite structure, anti-skid coating technology, applied in the direction of coating, metal material coating process, etc., can solve the problems of unstable coating friction coefficient, poor thermal shock resistance, insufficient wear resistance, etc., and achieve excellent high temperature resistance. Erosion performance, good anti-skid and wear-resistant performance, low pollution effect

Active Publication Date: 2019-03-22
MARINE CHEM RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the coating still has the following disadvantages: (1) it is easy to age and degrade, which is unavoidable for all organic materials, and the harsh environmental conditions of the ocean will greatly accelerate this process; (2) due to insufficient wear resistance, the coating The coefficient of friction is unstable. The friction coefficient of the organic anti-skid coating can reach 1.4 at the beginning, and it will drop to 0.8 after 2 years; (3) The thermal shock resistance is poor; (4) Toxic gas is released during construction and high temperature
[0006] However, the existing single-layer structural coatings cannot meet the high-temperature resistance and anti-slip properties of the surface layer and meet the requirements of the harsh marine atmospheric corrosion environment. Therefore, it is necessary to provide a new iron-based composite structure high-temperature corrosion-resistant anti-slip coating and its preparation method to solve existing problems

Method used

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  • Iron-based composite structure high-temperature anti-corrosion and anti-skid coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation method of the laser cladding iron-based high-temperature corrosion-resistant anti-skid coating comprises the following steps:

[0035] (1) Select Q235 carbon steel with a thickness of 3mm as the substrate (substrate 1), perform sandblasting and degreasing treatment on its surface, then use acetone and absolute ethanol to perform ultrasonic cleaning, clean and dry it with a sample bag Well packaged to avoid surface oxidation;

[0036](2) According to the mass fractions: 31wt% iron, 28wt% chromium, 12wt% boron, 11wt% cobalt, 10wt% nickel, and 8wt% silicon are used to configure the alloy powder, and the proportion of the configured alloy powder to the total mass is 40% alumina powder is mixed and then ball-milled to a particle size of 200-300 mesh to obtain spray powder.

[0037] (3) Bake the SAM2X5 alloy powder without organic binder and the composite powder configured in step (2) in a vacuum oven at 90°C for 30 minutes;

[0038] (4) Laser cladding is ca...

Embodiment 2

[0040] Embodiment 2 (comparative example 1, compared with embodiment 1, does not contain corrosion-resistant bottom layer)

[0041] The preparation method of the laser cladding iron-based high-temperature corrosion-resistant anti-skid coating comprises the following steps:

[0042] (1) Choose Q235 carbon steel with a thickness of 3mm as the substrate, sandblast and degrease the surface, and then clean it with acetone and absolute ethanol ultrasonically. After cleaning and drying, seal it with a sample bag to avoid surface oxidation;

[0043] (2) According to the mass fractions: 31wt% iron, 28wt% chromium, 12wt% boron, 11wt% cobalt, 10wt% nickel, and 8wt% silicon are used to configure the alloy powder, and the proportion of the configured alloy powder to the total mass is 40% alumina powder is mixed and then ball-milled to a particle size of 200-300 mesh to obtain spray powder.

[0044] (3) Bake the prepared composite powder in a vacuum oven at 90°C for 30 minutes;

[0045] ...

Embodiment 3

[0046] Embodiment 3 (comparative example 2, compared with embodiment 1, surface layer does not contain ceramic powder)

[0047] The preparation method of the laser cladding iron-based high-temperature anti-skid coating comprises the following steps:

[0048] (1) Choose Q235 carbon steel with a thickness of 3mm as the substrate, sandblast and degrease the surface, and then clean it with acetone and absolute ethanol ultrasonically. After cleaning and drying, seal it with a sample bag to avoid surface oxidation;

[0049] (2) According to the mass fractions: 31wt% iron, 28wt% chromium, 12wt% boron, 11wt% cobalt, 10wt% nickel, and 8wt% silicon, the alloy powder is configured, and the configured alloy powder is ball milled to 200-300 mesh Particle size, get spray powder.

[0050] (3) Bake the SAM2X5 alloy powder without organic binder and the alloy powder configured in step (2) in a vacuum oven at 90°C for 30 minutes;

[0051] (4) Laser cladding is carried out by synchronous powd...

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Abstract

The invention discloses an iron-based composite structure high-temperature anti-corrosion and anti-skid coating and a preparation method thereof. The coating comprises a SAM2X5 amorphous alloy anti-corrosion bottom layer (2) and an iron-based amorphous alloy / ceramic anti-skid top layer (1). The iron-based amorphous alloy / ceramic anti-skid top layer (1) is composed of alloy powder and ceramic powder. The alloy powder is prepared from, by mass percent, 31wt% of iron, 28wt% of chromium, 12wt% of boron, 11wt% of cobalt, 10wt% of nickel and 8wt% of silicon. The mass of the ceramic powder is 10%-70%of the total mass of the iron-based amorphous alloy / ceramic anti-skid top layer (1). The coating is high in friction coefficient, coating bonding strength and corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a laser cladding iron-based high-temperature resistant anti-slip coating and a preparation method thereof. Background technique [0002] Anti-slip coating is a functional material with anti-slip effect. It can improve the friction of the surface of the object and form a non-slip surface with a high friction coefficient to reduce the sliding of people, vehicles and other objects on the surface of the object. Fall accidents have been widely used on ship decks, offshore oil drilling platforms, and coastal facilities. [0003] As we all know, the marine environment is a very harsh and corrosive environment. In addition to the basic performance of improving friction, the anti-skid coatings applied on ship decks and offshore platforms also need to have good corrosion resistance and anti-ultraviolet aging performance. And marine climate resistance, while the anti-skid c...

Claims

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Application Information

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IPC IPC(8): C23C24/10C22C30/00
CPCC22C30/00C22C37/06C22C37/10C22C38/34C22C38/52C22C38/54C23C24/103
Inventor 白杨王同良张学卿张卫国成建强姜秀杰冷晓飞王志超崔显林左娟娟陈从棕冉冉
Owner MARINE CHEM RES INST
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