Heat-treated cast grinding members

Details Heat-treated cast grinding members Heat-treated cast grinding members

1976-05-19

1977-08-23

Steiner, Arthur J.

Metal treatment

Compositions

Heat treating

148 124, 148125, 148135, C22C 3822

Patent

active

040438449

ABSTRACT:
Heat-treated cast grinding members for use in a grinding mills such as grinding balls, lining plates, crushing jaws, etc. are disclosed, which members are subjected to abrasion and repeated impact in the presence of a wet corrosive medium. These members consist essentially of 0.5 to 2.8% carbon, 15 to 35% chromium, and must satisfy the relationship percent Cr -- 8 .times. %C = 11 to 16%. These members are hardened without subsequent tempering from a temperature range of 1075.degree. to 1175.degree. C and evidence a metallographic structure of primary chromium carbides in a ferrite-free matrix which is a predominantly martensitic solid solution consisting essentially of from 0.3% to 0.45% of carbon and from 14% to 18% of chromium. The elements have a Rockwell "C" hardness of at least 60.

REFERENCES:
patent: 1245552 (1917-11-01), Becket
patent: 2201425 (1940-05-01), Berglund
patent: 3334996 (1967-08-01), Foster
patent: 3410682 (1968-11-01), Avery et al.
patent: 3690957 (1972-09-01), Thompson

Affiliated with

Also associated with

Rating

Heat-treated cast grinding members does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat-treated cast grinding members, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat-treated cast grinding members will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2313760