It was found that there was no direct relation between dynamic hardness and static hardness or other static properties of material.

材料的动态硬度与静态硬度或其它静态力学性能指标之间没有简单的直接关系。

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High elasticity is the premise of low hardness for top roller, it can improve instantaneous dynamic circularity, extend the time of the elasticity fatigue resistance, improve yarn forming quality.

胶辊低硬度必须以高弹性为前提，才能提高胶辊瞬时动态圆整度，延长抗弹性疲劳时限，达到稳定、提高纺纱质量的目的。

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Hardness was counted by Dynamic Ultra Micro Hardness Tester.

动态超显微硬度仪测试材料的硬度。

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