Metal treatment – Process of modifying or maintaining internal physical... – Carburizing or nitriding using externally supplied carbon or...
Patent
1992-08-24
1993-10-12
Yee, Deborah
Metal treatment
Process of modifying or maintaining internal physical...
Carburizing or nitriding using externally supplied carbon or...
148218, C21D 106
Patent
active
052521460
ABSTRACT:
A process for nitrocarburizing ferrous materials, and the product thereof is described. Material to be treated is packed in a container with a triazine polymer, preferably melone, melem or melam and heated to 500.degree.-900.degree. C. for up to 120 minutes. After treatment the material can be oil quenched to produce a product having a diffusion layer and or a relatively thick hard nitrocarburized (outer) layer which is 40-200 3/4m thick and has a hardness in the range HV 400-1500.
Shi Jiwei
Smith Reginald W.
Wen Lianyu
Hicks Richard J.
Queen's University
Yee Deborah
LandOfFree
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