Abstract: A nickel-based alloy composition is disclosed comprising from about 0.05 to about 3 percent by weight beryllium; from about 1 to about 40 percent by weight copper; no greater than about 10 percent by weight chromium, the balance being nickel. The alloy composition may be adjusted to achieve a high, as-cast hardness alloy over a wide range of alloy component contents, or a moderate, as-cast hardness alloy useful for forming articles such as golf clubs which has relatively constant mechanical properties over a wide range of copper contents.
Type:
Grant
Filed:
August 2, 1999
Date of Patent:
July 25, 2000
Assignee:
NGK Metals Corporation
Inventors:
Charles Walter Hershberger, Dennis Hall
Abstract: A treatment process is provided for a copper-beryllium alloy comprising from about 0.2% to about 0.7% beryllium, no greater than 3.5% of cobalt and/or nickel, no greater than 0.5% of titanium and/or zirconium and at least 90% copper, wherein the alloy has been cold worked to a ready-to-finish gauge, comprising the steps of annealing the cold worked ready-to-finish gauge copper-beryllium alloy at a temperature from about 1500.degree. F. to about 1685.degree. F., cold working the annealed copper-beryllium alloy to reduce its gauge to a range of from about 20% to about 60%, and age hardening the copper-beryllium alloy at a temperature of from about 700.degree. F. to about 950.degree. F. for about 1 to about 7 hours. The alloy is characterized by satisfactory levels of strength and electrical conductivity as well as enhanced levels of formability, particularly in the direction parallel to the direction of rolling the alloy.
Type:
Grant
Filed:
March 29, 1995
Date of Patent:
May 9, 2000
Assignee:
NGK Metals Corporation
Inventors:
Sam Friedman, Sherwood Goldstein, Yoshio Ito
Abstract: A nickel-based alloy composition is disclosed comprising from about 0.05 to about 3 percent by weight beryllium; from about 1 to about 40 percent by weight copper; no greater than about 10 percent by weight chromium, the balance being nickel. The alloy composition may be adjusted to achieve a high, as-cast hardness alloy over a wide range of alloy component contents, or a moderate, as-cast hardness alloy useful for forming articles such as golf clubs which has relatively constant mechanical properties over a wide range of copper contents.
Type:
Grant
Filed:
January 23, 1997
Date of Patent:
November 9, 1999
Assignee:
NGK Metals Corporation
Inventors:
Charles Walter Hershberger, Dennis Hall
Abstract: A casting nozzle is first arranged in a melt of the beryllium copper alloy in a mold. This casting nozzle has a flow rate-regulating mechanism which is arranged in the melt in the mold and capable of regulating the flow rate of the melt to be poured into the mold. The nozzle is opened in the melt inside the mold. A melt is poured into the mold through the nozzle, and continuously cast in a casting temperature range from a liquidus temperature of the beryllium copper alloy to a temperature higher than the liquidus temperature by 50.degree. C. Thereby, the beryllium copper alloy having a crystalline structure consisting essentially of isometric crystals can be obtained.