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线耳与金屬丝锚固强度试验

作者：來源：发布日期： 2020.10.21

信息摘要：

线耳与金屬丝锚固强度试验

使用试验机做力学测试的过程中，很多用户反应不知道如何配置夹具。今天给大家说说如何利用好夹具。长期以来，我们都是一套夹具对应着一种试验，这样带来的影响就是利用率较低。金屬丝与线耳的锚固强度是许多生产线缆，插线头等厂家必备检测的实验项目。由于线耳的结构不同，往往夹持方式也不同。如图为某客户的专用线耳，需要测试锚固强度。

刚拿到试样的时候，往往会无从下手，不知道如何选择夹持装置。不过通过对试样的结构进行观察，发现线耳可以通过对夹夹具的钳口的缝隙勾住，金屬丝和胶片通过合页夹具夹紧。这样进行测试一方面不会直接夹持线耳，从而保护了线耳，另一方面下夹具直接夹持胶片和金屬丝，避免单独夹持金屬丝导致打滑现象。

實驗夾持過程中還是有許多需要注意的地方，比如：合頁夾具需要夾緊，若夾持力度不夠，會造成實驗過程有打滑現象。此時的實驗曲線會出現不規則波浪狀。

成功的实验，最大值出现在金屬丝脱离线耳或者金屬丝中间发生断裂，请看下图。最后还给出一组合格的测试报告。

各位线缆，插线头等厂家在操作试验机做金屬丝与线耳的锚固强度试验时，可参考上述方法进行尝试，望能对您的工作提供帮助。

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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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