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建筑密封胶试验机测试GB/T 13477.8

作者：來源：发布日期： 2020.10.19

信息摘要：

建筑密封胶试验机测试GB/T 13477.8

国标GB/T 13477是有关建筑密封材料的试验方法标准，其中的GB/T 13477.8规定的是拉伸粘结性能的测定方法。测定建筑密封材料的拉伸强度、断裂伸长率及基材的粘结状况。使用拉力试验机进行试验。

將待測的密封材料粘結在兩個平行基材的表面之間，制成試樣。將試樣置于拉力機上拉伸至破壞，計算拉伸強度、斷裂伸長率及應力應變曲線。

基材應該符合GB/T13477.1規定，一般是水泥砂漿板、玻璃板或鋁材。
試驗時，需要測試試樣在低溫環境下的性能，需要將試樣在-20度環境箱中放置4個小時以上，然後進行拉伸試驗。

直接增加低温环境装置，则试验更为简单方便。图为三思泰捷的高低溫試驗機参考图。

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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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