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塑料拉伸試驗GB1040-2006

作者：來源：发布日期： 2020.09.28

信息摘要：

塑料拉伸試驗GB1040-2006

塑料拉伸試驗GB1040-2006

本部分 GB1040-2006 应用于哑铃状（类型 I-V) 、杆状和管状的样品类型，为测定未增强型和增强型塑材的拉伸性能指定测试条件。这些性能包括拉伸强度、断裂拉伸应变以及拉伸弹性模量。
詳細信息

影響塑料力學性能的因素很多，有聚合物結構的影響（如：聚合物種類，分子量及其分布，是否結晶等），有成型加工的影響（如：成型加工的方式及加工條件導致結晶度、取向度的變化，試樣的缺陷等）；有測試條件的影響（如：測試溫度，濕度，速度等），它們會導致實驗重複性差等缺陷。

本部分 GB1040-2006 应用于哑铃状（类型 I-V) 、杆状和管状的样品类型，为测定未增强型和增强型塑材的拉伸性能指定测试条件。这些性能包括拉伸强度、断裂拉伸应变以及拉伸弹性模量。

◇ 试验仪器
◎試樣的制備儀器：沖片機一台；或用注塑機制得標准試樣五根以上
◎试验设备主机：CMT4104/CMT1104 塑料拉力試驗機
◎試驗設備配件：

? 电子引伸计：求取拉伸弹性模量时选用，塑料多数材料性能很相似，都要求引伸计准确测量形变。塑性应力与形变曲线通常包含一个线性弹性区域以及一个非线性塑性区域。极少数形变发生在线性区域内，并且，由于模量在此区域内测定，因此高分辨率的引伸计是十分必要的。

? 夹具：我们推荐使用机械楔形夹具或气动平推夹具进行塑料拉伸试样测试。

? 大变形测量系统：求取断裂拉伸应变时选用

關于此解決方案
相关标准：GB/T1040 | ASTM D638 | ISO 527-1 | ISO 527-2 | JIS K7113
样品类型：管材型 | 圆形 | 哑铃型
材料：塑料
測試類型：拉伸

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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. The place given to mathematics as the foundation of a right intellectual training is most remarkable, and shows how truly Plato apprehended the conditions under which knowledge is acquired and enlarged. Here, as in other respects, he is, more even than Aristotle, the precursor of Auguste Comte. He arranges the mathematical sciences, so far as they then existed, in their logical order; and his remarks on the most general ideas suggested by astronomy read like a divination of rational mechanics. That a recommendation of such studies should be put into the mouth of Socrates is a striking incongruity. The older Plato grew the farther he seems to have advanced from the humanist to the naturalistic point of view; and, had he been willing to confess it, Hippias and Prodicus were the teachers with whom he finally found himself most in sympathy. We are told that when his end began to approach, the dying philosopher was pressed to choose a successor in the headship of the School. 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