Low alloy steel powder for plasma deposition having solid lubric

Details Low alloy steel powder for plasma deposition having solid lubric Low alloy steel powder for plasma deposition having solid lubric

1997-02-10

1998-12-08

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Treating loose metal powder, particle or flake

75338, 148208, B22F 908

Patent

active

058463496

ABSTRACT:
An iron or copper based metal powder useful for plasma deposition of a coating that has a dry coefficient of friction 0.75 or less and readily conducts heat through the coating. The powder comprises (a) H.sub.2 O atomized and annealed particles consisting essentially of (by weight) carbon 0.15-0.85%, oxygen 0.1-0.45%, an air hardening agent selected from manganese and nickel of 0.1-6.5%, and the remainder iron or copper, with at least 90% of the particles having oxygen and iron or copper combined in the lowest atomic oxygen form for an oxide of such metal.
A method of making anti-friction iron powder that is economical, selectively produces FeO and promotes fine flowable particles. The method comprises (a) steam atomization of a molten steel that excludes other oxygen, the steel containing carbon up to 0.4% by weight to produce a collection of comminuted particles, and (b) annealing the particles in an air atmosphere for a period of time of 0.25-2.0 hours in a temperature range of 800.degree.-1400.degree. F. to reduce carbon in the particles to about 0.2% or sponge iron by reducing Fe.sub.3 O.sub.4 or Fe.sub.2 O.sub.3 in CO and (H.sub.2 O steam) to attain nearly all iron with nearly all FeO and 0.1 to 0.85 C.

REFERENCES:
patent: 3887402 (1975-06-01), Kondo et al.
patent: 4201600 (1980-05-01), Luiten et al.

Affiliated with

Also associated with

Rating

Low alloy steel powder for plasma deposition having solid lubric does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low alloy steel powder for plasma deposition having solid lubric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low alloy steel powder for plasma deposition having solid lubric will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-173143