Method of nitriding steel and heat treat furnaces used therein

Details Method of nitriding steel and heat treat furnaces used therein Method of nitriding steel and heat treat furnaces used therein

1992-01-17

1993-03-16

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

C21D 106

Patent

active

051940973

ABSTRACT:
This invention relates to a method of nitriding steel material in a second heat treatment furnace after fluorinating the steel material in a first heat treat furnaceto form a deep and uniform nitrided layer. Then, steel material is treated smoothly by defining the ratio of establishing said both furnaces for fluorinating and niriding on the basis of treating time required for said both treatments since time required for each treatment is different.

REFERENCES:
patent: 5013371 (1991-05-01), Tahara et al.

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