FIELD: machine building.
SUBSTANCE: invention relates to mechanical parts, which relates to category of guide elements, particularly entered into the composition of systems or hinged connection shaft/support. At least, one of couple of guide elements is implemented of steel, which contains, at least carbon in amount from 0.15 up to 0.3 wt %, chrome in amount from 2 up to 5 wt % (preferably from 2% up to 3%), molybdenum in amount, at least, equal to 0.45 wt % (in preference not more than 0.9 wt %), and vanadium in amount more than 0.01 wt % and not more than 0.5 wt % (in preference not more than 0.3%). This steel is nitride after formation so that receive intermediate layer between atoms of iron and nitrogen of thickness which is in the range from 5 micron up to 50 micron. It can additionally contains from 0.4 wt % up to 1.5 wt % of manganese.
EFFECT: wear resistance increasing of couple of guide elements.
21 cl
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Authors
Dates
2009-12-27—Published
2006-04-21—Filed