Hainan Steel tells you: steel spray sprayed zinc and aluminum corrosion effect principle

Hainan Steel tells you: steel spray sprayed zinc and aluminum corrosion effect principle

     Because the steel structure long-term in various atmospheres (including marine, industrial cities, fields, mines), dipping different water (sea water, fresh water) and different etching environment and failure are subject to different degrees of corrosion. According to information produced worldwide each year, about one tenth of steel becomes rust, about 30% of steel equipment failure due to corrosion. Industrialized countries, the annual direct economic loss because of metal corrosion caused by about 2 to 4% of national economic output, China's economy is also this loss amounted to several hundred billion dollars a year. Thermal spray zinc, thermal spray coating of aluminum and its alloys, plus the shutdown process, it can be prepared a long-term protective composite coating.
Steel zinc corrosion spray aluminum spray arc spraying technology especially the most common, and more widespread application prospects. Arc spraying arc spraying is the use of anti-corrosion equipment, the two live wires (such as zinc, aluminum, etc.) for heating, melting, spray, spray forming anti-corrosion coating, Hainan coated steel plus long-term preservation of organic Close composite coating the coating notable features are:
With a more long-lasting corrosion life expectancy for corrosion life span can reach more than 50 years while the use of anti-corrosion coating without any other anti-corrosion maintenance period of 30 years; 30 years later maintenance, only to be shut down in the brush arc spray coating layer ; no repainting, achieve a preservative coating durable and effective.
Arc spraying layer and the metal substrate coating with excellent contact force (up to 10Mp above), the metal coating layer mechanically inlay and micro metallurgy associated with the base metal at a slight twists and turns, shock or collision also ensures anti-corrosion coating do not fall off, can not afford to skin, contact a firm, lasting and effective antiseptic, it is in any other anti-corrosion coating surface can not reach. Steel construction, steel sprayed aluminum spray zinc corrosion coating principle is cathodic protection in corrosive environments, even if the anti-corrosion coating local damage, still has dedicated themselves to protect the steel substrate of the role. Coating area (anode) and steel substrate (cathode) ratio ≥1; and zinc-rich paint both anode and cathode ratio <1, and its protective effect and contact force is also far below the arc spraying anti-corrosion coating. Hainan Steel