Method for heat treatment of low melting point-metal plated stee

Details Method for heat treatment of low melting point-metal plated stee Method for heat treatment of low melting point-metal plated stee

1979-04-24

1981-03-17

Williams, Howard S.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

C21D 952, C21D 954

Patent

active

042565197

ABSTRACT:
A method of and an apparatus for overaging treatment of low melting point-metal plated steel band, in which a hearth roll having surface layer which consists mainly of phenol resin, mineral fiber and small quantity of additive as necessary is used under the overaging treatment temperature range and within weak oxidation, inactive or reducing high temperature gas atmosphere such that the phenol resin substantially does not oxidize and evaporate.
The method and apparatus allow overaging treatment of low melting point-metal plated steel band in continuous annealing furnace having many hearth rolls to guide the steel band, and prevent the low melting point metal from being picked up on the surface of the hearth roll.

REFERENCES:
patent: 3562031 (1971-02-01), Gibson
patent: 4081296 (1978-03-01), Janatka et al.

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