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GB/T 15972.31 光纤抗张强度拉力机试验

作者：來源：发布日期： 2020.10.19

信息摘要：

GB/T 15972.31 光纤抗张强度拉力机试验

国标GB/T 15972.31规定了确定光纤样品抗张强度值的试验方法及试验设备，使用抗张试验机完成光纤的机械性能测量与试验。好的夹具是试验成功的关键因素。光纤的夹持对夹具的要求较高。三思泰捷在光纤试验领域有着成熟的方案和专有夹具。

抗張試驗機需要有合適的夾具裝置，要避免樣品損壞和打滑，測量的強度值將隨拉伸速度變化。一般的拉伸速度範圍每分鍾3%~5%或15%~25%的試樣長度。

試樣長度有兩種，一種爲長度爲1M的短試樣，一種爲10M~20M，比較試驗結果只用同樣長度的樣品。一般爲短樣品。

拉力機把應力加載到光纖上，如使用支撐滑輪則不能損壞光纖。

試驗報告一般包括如下內容：試驗名稱、試樣識別號、強度值（斷裂下的應變值）、相對濕度及溫度、試驗日期、操作人員、拉伸速度、樣品長度、夾具類型等。

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The Curate, of course, had heard nothing about the Clockwork man's other performances; he had scarcely heeded the hints thrown out about the possibility of movement in other dimensions. It seemed to him, in the uncertain light of their surroundings, that the Clockwork man's right arm gradually disappeared into space. There was no arm there at all. Afterwards, he remembered a brief moment when the arm had begun to grow vague and transparent; it was moving very rapidly, in some direction, neither up nor down, nor this way or that, but along some shadowy plane. Then it went into nothing, evaporated from view. And just as suddenly, it swung back into the plane of the curate's vision, and the hand at the end of it grasped a silk hat. Good fitting is often not so much a question of skill as of the standard which a workman has fixed in his mind, and to which all that he does will more or less conform. 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