Method of casting wear-resistant, cast iron machine element

Details Method of casting wear-resistant, cast iron machine element Method of casting wear-resistant, cast iron machine element

1990-08-17

1992-05-19

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

164119, B22D 1806

Patent

active

051139243

ABSTRACT:
A wear-resistant cast iron rocker arm or similar machine element is formed by differential pressure, countergravity casting an iron melt of low superheat into a ceramic investment shell mold maintained initially at room temperature and rapidly solidifying the melt therein to provide a wear-resistant, as-cast microstructure throughout the body of the element. The as-cast microstructure comprises a dendritic constituent of austenite or transformed austenite (e.g., pearlite) depending on alloy composition and an interdentritic carbide constituent. Interdendritic ledeburite will also be present if the austenite remains untransformed. The as-cast microstructure of the rocker arm is devoid of graphite.

REFERENCES:
patent: 2791526 (1957-05-01), Peras
patent: 2887421 (1959-05-01), Peras
patent: 3189443 (1965-06-01), Laudenslager, Jr. et al.
patent: 3502057 (1970-03-01), Thompson
patent: 3784416 (1974-01-01), Davies
patent: 3863706 (1975-02-01), Chandley et al.
patent: 3890064 (1975-06-01), Boehringer et al.
patent: 3900064 (1975-08-01), Chandley et al.
patent: 3998664 (1976-12-01), Rote
patent: 4112997 (1978-09-01), Chandley
patent: 4340108 (1982-07-01), Chandley et al.
patent: 4395284 (1983-07-01), Dawson
patent: 4476824 (1984-10-01), Reinke et al.
patent: 4638847 (1987-01-01), Day
patent: 4791977 (1988-12-01), Chandley
patent: 4870931 (1989-10-01), Nakamura et al.

Affiliated with

Also associated with

Rating

Method of casting wear-resistant, cast iron machine element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of casting wear-resistant, cast iron machine element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of casting wear-resistant, cast iron machine element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2412828