Title:
PAIR OF GUIDING ELEMENT OF WHICH ON IS MADE OF A SPECIFIC STEEL LEADING TO IMPROVED ANTI-SEIZING PERFORMANCES
Document Type and Number:
WIPO Patent Application WO2006111661
Kind Code:
A8
Abstract:
A pair of guiding elements is characterized in that at least one of its elements is made of a steel containing at least 0.15 to 0.3 % by weight of carbon, 2 to 5 % (preferably 2 to 3%) by weight of chromium, at least 0.45 % (preferably no greater than 0.9%) by weight of molybdenum, and at least 0.01 % by weight and no greater than 0.5 % (preferably no greater than 0.3%) of vanadium. This steel is nitrided after being shaped whereby obtaining a compound layer consisting of iron and nitrogen atoms of a thickness ranging from 5 to 50 micrometers. The steel can also contain 0.4 % to 1.5 % by weight of manganese.
Inventors:
CHADUIRON ERIC (FR)
HOUZE LAURENT (FR)
JUMAINE SHAMBA (FR)
HOUZE LAURENT (FR)
JUMAINE SHAMBA (FR)
Application Number:
PCT/FR2006/000886
Publication Date:
December 28, 2006
Filing Date:
April 21, 2006
Export Citation:
Assignee:
HYDROMECANIQUE & FROTTEMENT (FR)
CHADUIRON ERIC (FR)
HOUZE LAURENT (FR)
JUMAINE SHAMBA (FR)
CHADUIRON ERIC (FR)
HOUZE LAURENT (FR)
JUMAINE SHAMBA (FR)
International Classes:
F16C33/12; F16C9/02; F16C17/00; F16C33/14
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