Railroad car friction casting metallurgy

Details Railroad car friction casting metallurgy Railroad car friction casting metallurgy

1978-03-31

1979-09-04

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

75123CB, C22C 3700

Patent

active

041667565

ABSTRACT:
A process for the manufacture of railroad car truck components with high wear resistant qualities involves an alloy of specific composition, dumping from the sand mold above a specific temperature and being allowed to cool in air, resulting in an "as cast" acicular microstructure having very little amounts of Pearlite and carbides. This process eliminates the heat treating, quenching and draw operations normally associated with the production of wear resistant, acicular castings.

REFERENCES:
patent: 2200765 (1940-05-01), Bartholomew et al.
patent: 2324322 (1943-07-01), Reese et al.
patent: 2352408 (1944-06-01), Reece et al.
patent: 3095300 (1963-06-01), Moore et al.
patent: 3299482 (1967-01-01), Tache et al.
patent: 3784416 (1974-01-01), Davies

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