alumina ceramic particles such as a mix , reinforced with an aluminum coating to inflict inhibit the corrosion and erosion at the same time relates to a boiler in the lower canopy of a coal-fired power plants , 5-15 wt% of the ceramic particles of alumina into aluminum alloy size 6~12 to this was added , by spraying the molten protective wire made by dispersing the water pipe outside coating layer is characterized by a lower canopy to create a coal-fired promote corrosion and abrasion resistance were formed at the same time .
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