ZnAlMgTiSiB anticorrosive coating for steel structure and preparation method of ZnAlMgTiSiB anticorrosive coating
A technology of anti-corrosion coating and steel structure, applied in the direction of coating, metal material coating process, melting spray plating, etc., can solve the problem of high cost of anti-corrosion coating raw materials, unsuitable for promotion and use, and increased cost of anti-corrosion coating materials and processes and other problems, to achieve the effect of reducing coating consumption, strengthening cathodic protection, and enhancing isolation and protection.
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Embodiment 1
[0022] The ZnAlMgTiSiB anti-corrosion coating for steel structures in this embodiment is composed of the following components in mass percentage: Zn 73%, Al 15%, Mg 2%, Ti 5%, Si 3%, B 2%.
[0023] The preparation method of ZnAlMgTiSiB anticorrosion coating for steel structure of this embodiment comprises the following steps:
[0024] Step 1. Pretreat the surface of the steel structure to Sa2.5 by high-pressure water blasting;
[0025] Step 2, using the arc spraying method to spray the ZnAlMgTiSiB wire material to the steel structure surface after the pretreatment in step 1 to form a ZnAlMgTiSiB anti-corrosion coating; 60 °, the arc voltage is 40V, the arc current is 600A, the conveying speed of the ZnAlMgTiSiB wire is 5m / min, the pressure of the compressed air is 0.9MPa; the thickness of the ZnAlMgTiSiB anti-corrosion coating is 100 μm.
[0026] After testing, the density of the ZnAlMgTiSiB anti-corrosion coating prepared in this example is 99.92%, and the microhardness is 4...
Embodiment 2
[0029] The ZnAlMgTiSiB anti-corrosion coating for steel structures in this embodiment consists of the following components in mass percentage: Zn 41%, Al 55%, Mg 1%, Ti 1.3%, Si 0.7%, B 1%.
[0030] The preparation method of ZnAlMgTiSiB anticorrosion coating for steel structure of this embodiment comprises the following steps:
[0031] Step 1. Pretreat the surface of the steel structure to Sa2.5 by sandblasting;
[0032] Step 2. Spray the ZnAlMgTiSiB powder core wire material composed of ZnAl-coated AlMgTiSiB powder to the surface of the steel structure after pretreatment in step 1 by arc spraying to form a ZnAlMgTiSiB anti-corrosion coating; the spray gun used in the arc spraying method and the surface of the steel structure The distance is 100mm, the spraying angle of the spray gun is 90 °, the arc voltage is 20V, and the arc current is 200A, the conveying speed of the ZnAlMgTiSiB powder core wire material is 0.5m / min, and the pressure of the compressed air is 0.4MPa; The t...
Embodiment 3
[0036] The ZnAlMgTiSiB anti-corrosion coating for steel structures in this embodiment consists of the following components in mass percent: Zn57.6%, Al38%, Mg0.5%, Ti0.5%, Si1.9%, B1.5%.
[0037] The preparation method of ZnAlMgTiSiB anticorrosion coating for steel structure of this embodiment comprises the following steps:
[0038] Step 1. Pretreat the surface of the steel structure to Sa2.5 by high-pressure water blasting;
[0039] Step 2. Spray the ZnAlMgTiSiB powder core wire material composed of ZnAlMg wire coated with AlMgTiSiB powder to the surface of the steel structure after pretreatment in step 1 by arc spraying method to form a ZnAlMgTiSiB anti-corrosion coating; the spray gun and steel structure used in the arc spraying method The surface distance is 100mm, the spraying angle of the spray gun is 75°, the arc voltage is 30V, the arc current is 400A, the conveying speed of the ZnAlMgTiSiB powder core wire material is 2.8m / min, and the pressure of the compressed air i...
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