Kawecki Berylco Industries, Inc.

Cabot Corporation

Paul J Scherbner

Sherwood Goldstein

James A McGurty

Henry T McClelland

A process for producing a copper beryllium alloy. The process includes the steps of: preparing a copper beryllium melt; casting the melt; hot working the cast copper beryllium; annealing the copper beryllium; cold working the annealed copper beryllium; and hardening the copper beryllium; and is characterized by the improvement comprising the steps of: solution annealing the cold worked copper beryllium at a temperature of from 1275.degree. (691.degree.) to 1375.degree. F. (746.degree. C.); hardening the annealed copper beryllium at a temperature of from 400.degree. (204.degree.) to 580.degree. F. (304.degree. C.); cold rolling the hardened copper beryllium; and stress relief annealing the cold worked copper beryllium at a temperature of from 400.degree. (204.degree.) to 700.degree. F. (371.degree. C.). An alloy consisting essentially of, in weight percent, from 0.4 to 2.5% beryllium, up to 3.5% of material from the group consisting of cobalt and nickel, up to 0.5% of material from the group consisting of titanium and zirconium, up to 0.3% iron, up to 0.7% silicon, up to 0.3% aluminum, up to 1.0% tin, up to 3.0% zinc, up to 1.0% lead, balance essentially copper. The alloy is characterized by equiaxed grains. The grains have an average grain size of less than 9 microns. Substantially all of the grains are less than 12 microns in size.

Copper beryllium alloy and the manufacture thereof

An alloy for fabricating plastic molds consisting essentially of between about 0.4 and 2.0 weight percent beryllium, between about 29.0 and 33.0 weight percent nickel, between about 0.4 and 1.0 weight percent iron, between about 0.4 and 1.0 weight percent manganese, between about 0.05 and 0.3 weight percent zirconium, between about 0.05 to 0.30 weight percent titanium, and the balance copper. Plastic injection molds fabricated from said alloy are able to withstand the corrosive conditions present when fire retardant plastics are formed and are able to reproduce pattern detail completely and accurately.

Copper-nickel plastic mold alloy and resultant mold

A heat treatable nickel-base alloy consisting essentially of between about 0.6 to 3.0 weight percent beryllium, between about 0.0 to 4.5 weight percent titanium, between about 0.0 to 4.5 weight percent zirconium, between about 0.0 to 4.5 weight percent hafnium, between about 0.01 to 1.0 weight percent of a rare earth element, and the balance nickel.

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Boyertown, PA, United States of America

Paul J Scherbner