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
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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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