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?鋼絲繩拉伸试验方案GBT 8358-2006

作者：來源：发布日期： 2020.10.15

信息摘要：

?鋼絲繩拉伸试验方案GBT 8358-2006

公司名稱：某公司
材料名稱：鋼絲繩
执行标准：GBT 8358-2006
試驗速度：3mm/min
試驗方法：拉伸
引伸计：YYV-10/20
夹具：缠绕拉抻夹具（80MM.椭圆形）
試驗設備：鋼絲繩拉伸試驗機
制樣要求：
試驗方案：①根據夾具切取適當長度的樣品完成制樣：
②將合適的夾具安裝于試驗機內：
③夾好試樣（用低于3mm/min的速度預拉到300N左右使試樣及夾具預....
④设定3mm/min 的速度运行，直到试样断裂：
⑤出具驗報告
鋼絲繩拉伸试验报告内容： ①最大力 ②断裂情况说明 ③抗拉强度 ④最大力时延伸率长率 ⑤ 最大变形量

參考：

鋼絲繩拉伸

與鋼絲不同，鋼絲繩通常是若幹條鋼絲撚在一起組成。在拉伸模式下，由于松開力和斷裂強力而難以夾緊鋼絲繩試樣。如使用不適當的夾具和夾面，集中在夾面邊緣的應力可導致試樣試驗失敗。由于試驗中鋼絲繩的螺旋狀特性，因此很難在試樣上附加任何物體。鋼絲繩故障常導致高能斷裂，此時如未采取適當的安全措施，將會非常危險。

解決方案

系统具有大载荷、夹具、应变测量和安全性能。可采用电子万能材料试验系统和液压万能材料试验系统来测试钢丝绳，夹而采用"V"型设计，最大程度地增加夹具接触面积。此"V"型设计可采用齿形表而或特别粗壮表而，以防止开始试验前试样从这些夹点处滑落。专门的夹具以满足实际应用需要。这些应用包括多股钢丝绳夹具、金屬网夹具等。

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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. If this standard is one of exactness and precision, all that is performed, whether it be filing, turning, planing, or drawing, will come to this standard. This faculty of mind can be defined no further than to say that it is an aversion to whatever is imperfect, and a love for what [171] is exact and precise. There is no faculty which has so much to do with success in mechanical pursuits, nor is there any trait more susceptible of cultivation. Methodical exactness, reasoning, and persistence are the powers which lead to proficiency in engineering pursuits. I was the only civilian in that road, and the soldiers, with much curiosity, stared at me. Whenever I noticed an officer, I gave an elaborate military salute, and with such an air that the officers, although hesitating at first, did not fail to return the salute. The reformed system of education was to be not only moral and religious but also severely scientific. 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