Spray the surface with zinc aluminum steel corrosion in principle
Arc spraying flame spraying, compared with, the use of electricity instead of gas combustion, greatly improved work efficiency and work safety, especially the emergence of mechanized equipment arc spraying, arc spraying technique has been fully meet the needs of the bridge construction period , and the arc temperature is much higher than the flame, the coating adhesion strength is also much larger than spraying, the coating quality and fully meet the needs of long-term corrosion. The United States because of high labor costs, use of electric arc spraying anti-corrosion construction costs even lower than the heavy duty paint.
HC coating Network News: 1, zinc aluminum steel corrosion spray principle
Steel with zinc corrosion spray aluminum arc spray application technology in particular, is most common in the wider prospects of its application. Arc spraying anti-corrosion is the use of electric arc spray equipment, and two live wire (such as zinc, aluminum, etc.) for heating, melting, atomization, spray forming anti-corrosion coating, plus a long-term anti-corrosion coating of organic closed composite coating a notable feature of the coating is:
With relatively long life of its corrosion resistant life up to 50 years while the anti-corrosion coating used in the 30-year period without any other anti-corrosion maintenance; 30 years after the maintenance, only to be in the closed arc spray coating on the brush paint; not re-spraying, to achieve an anti-corrosion, coating durable and effective.
Arc spray coating and the metal matrix coating with excellent adhesion (up to 10Mp above), the metal coating layer and the micro-mechanical mosaic Metallurgy Combined with the base metal, the slight bending, impact or collision can ensure that corrosion under the coating does not fall off, can not afford leather, combined with solid, long-term anti-corrosion effective, and this is any other surface anti-corrosion coating can not be achieved.
Zinc aluminum steel corrosion coating spray principle of cathodic protection in corrosive environment, even if the local anti-corrosion coating damage, still has sacrificed themselves to protect Steel The effect of the matrix. Coating (anode) and the steel substrate (cathode) of the area ratio 1; and zinc-rich coating both anode and cathode ratio <1, the protective effect and binding force far smaller than the arc spraying anti-corrosion coating.
2, zinc aluminum steel corrosion spray technological advantages
Arc spraying flame spraying, compared with, the use of electricity instead of gas combustion, greatly improved work efficiency and work safety, especially the emergence of mechanized equipment arc spraying, arc spraying technique has been fully meet the needs of the bridge construction period , and the arc temperature is much higher than the flame, the coating adhesion strength is also much larger than spraying, the coating quality and fully meet the needs of long-term corrosion. The United States because of high labor costs, use of electric arc spraying anti-corrosion construction costs and even lower than the heavy-duty Paint . After several years has proved that spraying is the long-term corrosion of steel structure, the best way, this conclusion has been the world's many government departments and engineering approval.
3, anticorrosive steel spray aluminum construction technology
General arc spraying equipment by the rectifier Power supply , Control devices, spray gun, wire shelf or wire devices, compressed air supply system and so on. Wire shelf and the compressed air supply system and the same wire flame spraying. Arc spray zinc, aluminum spray coating materials and process parameters except a great relationship, but also depends on the efficient use of equipment and production requirements.
Zinc aluminum steel spray application of domestic anti-arc spraying long-lasting anti-corrosion technology in the 20th century, 90's, especially the metal arc spray coating application techniques is most common in the wider prospects of its application. Arc spraying anti-corrosion is the use of electric arc spray equipment, and two live wire (such as zinc, aluminum, etc.) for heating, melting, atomization, spray forming anti-corrosion coating, plus a long-term anti-corrosion coating of organic closed composite coating a notable feature of the coating is:
With relatively long life of its corrosion resistant life up to 50 years while the anti-corrosion coating used in the 30-year period without any other anti-corrosion maintenance; 30 years after the maintenance, only to be in the closed arc spray coating on the brush paint; not re-spraying, to achieve an anti-corrosion, coating durable and effective.
Arc spray coating and the metal matrix coating with excellent adhesion (up to 10Mp above), the metal coating layer and the micro-mechanical metallurgy with inlaid base metal combination, in a slight bend, even under shock or impact to ensure anti-corrosion coating does not fall off, can not afford leather, combined with solid, long-term anti-corrosion effective, and this is any other surface anti-corrosion coating can not be achieved.
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