Pack composition for borocarburizing ferrous substrates

Details Pack composition for borocarburizing ferrous substrates Pack composition for borocarburizing ferrous substrates

1984-09-17

1985-08-06

O'Keefe, Veronica

Metal treatment

Compositions

Heat treating

148 30, 148 27, 148 6, 75253, C21D 106

Patent

active

045334030

ABSTRACT:
A pack composition is disclosed for case hardening a ferrous metal to initially diffuse carbon into the surface thereof and subsequently diffuse boron into the surface. The pack composition comprises a boron material and a carburizing compound with the last named compound including a barium carbonate, a calcium carbonate and a hardwood charcoal and coke mixture.

REFERENCES:
patent: 520056 (1894-05-01), Hutchison
patent: 788778 (1905-05-01), Lamargese
patent: 2492803 (1949-12-01), Leininger
patent: 3806374 (1974-04-01), Krzyminski et al.
patent: 3891474 (1975-06-01), Grange

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