Cast iron pipe surface-modified for corrosion prevention and met

Details Cast iron pipe surface-modified for corrosion prevention and met Cast iron pipe surface-modified for corrosion prevention and met

1997-05-20

1999-10-05

Brinson, Patrick

Pipes and tubular conduits

Distinct layers

Coated

138146, 138DIG6, 427455, F16L 914, C23C 406

Patent

active

059608358

ABSTRACT:
A cast iron pipe surface-modified for preventing corrosion and a method of modifying the pipe surface for corrosion prevention. A corrosion preventive coating is formed on the surface of the iron material of the pipe. The corrosion preventive coating is made up of an aluminum alloy containing not less than 5 wt % but not more than 25 wt % of Mn, the remainder being Al, the aluminum alloy being such that the manganese is present as a supersaturated solid solution in an aluminum phase. The corrosion preventive coating is formed by thermally spraying a quenched aluminum alloy of the above noted composition onto the surface of the iron material of the pipe.

REFERENCES:
patent: 4605484 (1986-08-01), Shiroki et al.
patent: 5476725 (1995-12-01), Papich et al.
patent: 5509978 (1996-04-01), Masumoto et al.

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