Two-step infiltration in a single furnace run

Details Two-step infiltration in a single furnace run Two-step infiltration in a single furnace run

1987-08-21

1988-09-06

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75247, 419 53, 419 54, 419 57, 419 58, 419 60, 419 27, 419 29, B22F 300

Patent

active

047690712

ABSTRACT:
There is provided a process for infiltrating a compacted ferrous powder metal body with copper or a copper alloy which process is characterized by presintering the ferrous metal body at a temperature of from about 1875.degree. F. to a temperature below the melting point of the infiltrant, and then in the same furnace, raising the temperature above the melting point of the copper or copper alloy infiltrant for a period sufficient to infiltrate the powder metal body. This process is more economical than the prior double run infiltration processes and provides excellent impact strengths and tensile strengths.

REFERENCES:
patent: 2606831 (1952-08-01), Koehring
patent: 2778742 (1957-01-01), Shipe
patent: 2783145 (1957-02-01), Boyce
patent: 3411902 (1968-11-01), Krock et al.
patent: 3674472 (1972-07-01), Kimura et al.
patent: 4123265 (1978-10-01), Takahashi et al.
patent: 4606768 (1986-08-01), Svilar et al.

Affiliated with

Also associated with

Rating

Two-step infiltration in a single furnace run does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-step infiltration in a single furnace run, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-step infiltration in a single furnace run will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1604947