| 摘要 |
FIELD: technology of protection of underwater hulls of sea-going vessels and structures against corrosion and fouling; application of antifouling coats on underwater surfaces. SUBSTANCE: antifouling coat has subcoat applied on base and outer porous layer including copper. Subcoat is made on base of aluminium and outer later contains additionally zinc. Open porosity of outer layer is equal to 6-8% with content of copper of 20<EMI ID=0.118 HE=3 WI=3 TI=CHI>3% and zinc, 80<EMI ID=0.119 HE=3 WI=3 TI=CHI>3%. Precoat may include inner layer applied on base of intermediate layer made from forming-quality aluminium alloy and outer intermediate layer applied on it. Outer intermediate layer consists of forming-quality aluminium alloy, 60<EMI ID=0.120 HE=3 WI=3 TI=CHI>3%, and zinc, 40<EMI ID=0.121 HE=3 WI=3 TI=CHI>3%. Open porosity of outer intermediate layer may range from 4 to 6%. Ratio of thickness of inner intermediate layer, outer and intermediate layer and outer layer is as follows: (1<EMI ID=0.122 HE=3 WI=3 TI=CHI>0.1):(2<EMI ID=0.123 HE=3 WI=3 TI=CHI>0.2):(4: <EMI ID=0.124 HE=3 WI=3 TI=CHI>0.5). EFFECT: enhanced reliability. 4 cl, 1 dwg
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