摘要
按照ＧＢ２２８—８７《金属拉力试验法》中的公式计算断面收缩率既费时又复杂。在对原公式作进一步推导之后得出一新的计算式，按此公式可快速、难确地计算出值。
It takes more time and complexes to calculate the reduction of area()from formula in the standard GB228-87《Metallic Materials-tensile Testing》,a new formula can be made after calculating original formula and reduction is taken quickly and correctly using this new formula.
出处
《金属制品》
1994年第3期47-47,53,共2页
Metal Products
关键词
钢丝
断面收缩率
计算
Wire Reduction of area Calculate
