Method of making surface-hardened sinter-iron part

Details Method of making surface-hardened sinter-iron part Method of making surface-hardened sinter-iron part

1983-12-21

1985-04-02

Sebastian, Leland A.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Post sintering operation

148 14, 1481261, 419 26, B22F 300

Patent

active

045086818

ABSTRACT:
A method is provided for making a surface-hardened sinter-iron part by impregnating the sinter-iron part with an alkali silicate solution, hardening the iron part by heat treatment to harden the surface of the part, the sinter iron part having closed pores on the upper surface.

REFERENCES:
patent: 4071382 (1978-01-01), Riopelle

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