FORFARANDE FOR FRAMSTELLNING AV KOPPARLEGERINGAR MED HOG LEDNINGSFORMAGA OCH HOG HALLFASTHET

摘要

1,225,285. Heat-treating copper alloys. OLIN CORP. May 23, 1968 [June 26, 1967], No.47548/69. Divided out of 1, 225, 282. Heading C7A. A copper-base alloy containing in percentage by weight is held at 800‹ to 1050‹C. for at least 10 minutes, and is then cooled to a temperature in the range 400‹ to 550‹C. at which it is held for at least 30 minutes.