1 牌号和代号1.1 牌号的编写方法“YZCu”表示压铸铜合金,其后的元素符号和数值表示主要合金元素及其含量。1.2 代号的编写方法“Y”和其后的数字代表合金的牌号。2 技术要求2.1 压铸铜合金的牌号、代号、化学成分和机械性能见表。2.2 压铸铜合金的机械性能是在规定的工艺参数 1 grade and code 1.1 The preparation of the brand name “YZCu” Die-cast copper alloy, followed by the elements of symbols and values ​​that the main alloying elements and their content. 1.2 The preparation of the code “Y” and the subsequent figures represent the alloy grades. 2 Technical Requirements 2.1 Die-cast copper alloy grades, code, chemical composition and mechanical properties shown in the table. 2.2 Die-cast copper alloy mechanical properties are in the process parameters