Steel structure self-isolation type anti-corrosion process

A steel structure, isolation technology, applied in metal material coating process, coating and other directions, can solve the problems of poor performance of anti-corrosion coating, corrosion, etc., to achieve the goal of not being easy to scratch and impact cracks, avoiding erosion, and avoiding diffusion erosion Effect

Inactive Publication Date: 2021-03-16
刘绿霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the anti-corrosion coating on the surface of the steel struct

Method used

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  • Steel structure self-isolation type anti-corrosion process
  • Steel structure self-isolation type anti-corrosion process
  • Steel structure self-isolation type anti-corrosion process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see figure 1 , a self-isolated anticorrosion process for steel structures, comprising the following steps:

[0043] S1. Use mechanical treatment or chemical treatment to remove rust, oil and pollutants on the surface of the steel structure, and preheat to 150°C;

[0044] S2. Feed the metallurgical powder into the cladding pool, and form a uniform and dense laser cladding coating on the surface of the steel structure by means of scanning cladding;

[0045] S3. After cladding, keep warm at 140°C. When the laser cladding coating is not completely cured, prepare anti-corrosion coatings and evenly mix them into self-isolation reinforcing tubes 1 at a density of 1 piece / 10ml;

[0046] S4. Coating an anti-corrosion coating on the laser cladding coating, and then solidifying at room temperature to form an isolation layer.

[0047] Further, in step S1, the surface of the steel structure is ground to ST2 level, and the surface roughness Rz is 60-80 μm.

[0048] The laser proce...

Embodiment 2

[0057] see figure 1 , a self-isolated anticorrosion process for steel structures, comprising the following steps:

[0058] S1. Use mechanical treatment or chemical treatment to remove rust, oil and pollutants on the surface of the steel structure, and preheat to 180°C;

[0059] S2. Feed the metallurgical powder into the cladding pool, and form a uniform and dense laser cladding coating on the surface of the steel structure by means of scanning cladding;

[0060] S3. After cladding, keep warm at 160°C. When the laser cladding coating is not completely cured, prepare anti-corrosion coatings and evenly mix them into self-isolation reinforcing tubes 1 at a density of 1 piece / 10ml;

[0061] S4. Coating an anti-corrosion coating on the laser cladding coating, and then solidifying at room temperature to form an isolation layer.

[0062] In step S1, the surface of the steel structure is ground to ST2 level, and the surface roughness is Rz60-80 μm.

[0063] The laser process paramet...

Embodiment 3

[0068] see figure 1 , a self-isolated anticorrosion process for steel structures, comprising the following steps:

[0069] S1. Use mechanical treatment or chemical treatment to remove rust, oil and pollutants on the surface of the steel structure, and preheat to 200°C;

[0070] S2. Feed the metallurgical powder into the cladding pool, and form a uniform and dense laser cladding coating on the surface of the steel structure by means of scanning cladding;

[0071] S3. After cladding, keep warm at 180°C. When the laser cladding coating is not completely cured, prepare anti-corrosion coating and evenly mix it with self-isolation reinforcing tube 1 at a density of 1 piece / 10ml;

[0072] S4. Coating an anti-corrosion coating on the laser cladding coating, and then solidifying at room temperature to form an isolation layer.

[0073] In step S1, the surface of the steel structure is ground to ST2 level, and the surface roughness is Rz60-80 μm.

[0074] The laser process parameters ...

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Abstract

The invention discloses a steel structure self-isolation type anti-corrosion process, and belongs to the technical field of steel structures. According to the process, the surface of a steel structurecan be isolated from the external environment by adopting a mode of combining laser cladding and an anti-corrosion coating, and a plurality of self-isolation reinforcing pipes are pre-buried in the anti-corrosion coating on the surface layer, the performance and strength of the anti-corrosion coating can be greatly improved, scratches and impact cracks are not prone to occurring, meanwhile, damage isolation protection is provided, when accidental damage occurs to the anti-corrosion coating, easily-cracked sensing microspheres are arranged for sensing, protective gas in isolation balls is released, air entering the damaged position is expelled, and further diffusion and erosion are avoided; and then the broken sensing microspheres are exposed out of the self-heating inner cores and can besubjected to an oxidation reaction with oxygen in external air to generate heat, the interiors of the isolation balls are heated to trigger expansion action, antirust oil is released to fill the damaged position, dual isolation of water and air is achieved, and the steel structure is effectively protected against corrosion.

Description

technical field [0001] The invention relates to the technical field of steel structures, more specifically, to a self-isolated anticorrosion process for steel structures. Background technique [0002] Steel structure is a structure composed of steel materials, which is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plates, and adopts rust removal and antirust processes such as silanization, pure manganese phosphating, washing and drying, and galvanizing. The components or components are usually connected by welds, bolts or rivets. Because of its light weight and easy construction, it is widely used in large factories, stadiums, super high-rises and other fields. Steel structures are prone to corrosion. Generally, steel structures need to be derusted, galvanized or painted, and they need to be maintained regularly. [0003] Steel structure engin...

Claims

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Application Information

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IPC IPC(8): C23C24/10C22C38/02C22C38/58C22C38/44C22C38/42C22C38/06
CPCC22C38/002C22C38/02C22C38/06C22C38/42C22C38/44C22C38/58C23C24/10
Inventor 刘绿霞
Owner 刘绿霞
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