Optimized gray cast iron plate alloy for utility vehicle brake d

Details Optimized gray cast iron plate alloy for utility vehicle brake d Optimized gray cast iron plate alloy for utility vehicle brake d

1996-12-04

1999-04-13

Yee, Deborah

Alloys or metallic compositions

Ferrous

1.7 percent or more carbon containing

148321, C22C 3706

Patent

active

058940103

ABSTRACT:
An alloy for a gray cast iron plate for casting blanks of brake disks has composition of 3.65 to 3.95%, preferably approximately 3.85% carbon; 0.20 to 0.40%, preferably approximately 0.30% chromium; 1.80 to 2.20% silicon; 0.60 to 0.80% manganese; 0.30 to 0.50% copper; 0.20 to 0.80%, preferably approximately 0.38 to 0.45% niobium, and the remainder of iron, traces of other alloy metals and melting-caused impurities, such as phosphorus or sulfur, in which case other casting alloy metals, such as vanadium, nickel, tin, molybdenum, antimony, and the like may also be contained each with a content of from 0.01 to 0.06% by weight. The tensile strength, wear resistance and heat cracking resistance of the brake disks cast from such an alloy provide a very high service life of the brake disks which permits their use in utility vehicles.

REFERENCES:
patent: 5032194 (1991-07-01), Metzler
Patent Abstract--Japanese Document 60-248864 May 28, 1990.
Patent Abstract--Japanese Document 02-138438 Dec. 9, 1985.
Patent Abstract--Japanese Document 6-57366 Jun. 6, 1994.
Pressure Density of Cast Iron With Layered Graphite, Cast Iron With Vermicular Graphite And Cast Iron With Particulate Graphite, E. Brunhuber, Giesserei-Praxis, May 10, 1982, pp. 135-138.
Not Sensitive to Thermal Cracking, H. Werning, Industrie-Anzeiger 22/1991; two pages.

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