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给出了确定金属材料硬度分布区间的统计分析方法，并且通过对 2024铝合金新时效制度下硬度检测数据的统计分析，给出了 2024铝合金在新时效制度下，具有置信度的硬度分布范围。
The statistical analysis method for determining the hardness distribution of the metal material is given. Based on the statistical analysis of hardness test data of 2024 aluminum alloy under the new aging regime, the hardness distribution range of 2024 aluminum alloy under the new aging regime is given .