薄膜的拉伸测试,符合 ASTM D882 / ISO 527-3 标准
[00:00:05] 演讲者: ASTM D882 和 ISO 527-3 是用于测量薄膜拉伸性能的常用测试标准。
[00:00:14] 演讲者: 由于这些材料的薄型特性,准确测量试样尺寸至关重要。
[00:00:20] 演讲者: 试样长度和宽度取决于预期的伸长率和所需的结果,但通常起始宽度为 1 英寸,长度范围为 4 到 10 英寸。
[00:00:29] 演讲者: 务必查阅标准,以验证材料的正确尺寸。
[00:00:34] 演讲者: 应取三个测量值的平均值,以确定试样的宽度和厚度。
[00:00:38] 演讲者: 数字千分尺 是进行这些测量的合适选择。
[00:00:43] 演讲者: 夹具 必须能够适应试样在测试过程中变薄的情况。
[00:00:48] 演讲者: 气动侧向作用夹具 是首选的夹持解决方案,因为它们提供一致的夹紧力。
[00:00:54] 演讲者: 钳口面的选择取决于材料的厚度和强度。橡胶或光滑表面是最常用的。
[00:01:01] 演讲者: 试样对齐至关重要,应避免重新插入试样。
[00:01:07] 演讲者: 通过使用对齐和插入设备(如 Instron 的精密试样加载器),可以提高重复性和吞吐量。
[00:01:15] 演讲者: 建议使用引伸计来计算模量结果。
[00:01:20] 演讲者: 所使用的任何引伸计都需要具有正负 1% 误差的测量精度。
[00:01:26] 演讲者: Instron 的 AVE 高级视频引伸计 是一种非接触式解决方案,非常适合测量薄膜等精细试样的应变。
[00:01:36] 演讲者: ASTM D882 的关键结果包括断裂应变、断裂因子、拉伸强度、屈服强度和屈服伸长率。
[00:01:46] 演讲者: ISO 527-3 的关键结果包括屈服和断裂时的标称应变、屈服时的拉伸应力和断裂时的拉伸应力。
[00:01:56] 演讲者: 虽然本视频有望提供对该主题的一些总体见解,但我们始终建议与您当地的销售工程师联系,以讨论您的具体需求。
[00:02:05] 演讲者: 有关更多信息,请访问我们的网站或联系我们提出任何问题。
[00:02:09] 演讲者: 感谢您的观看。
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