1) cold spring
[管道的]预拉伸，预紧
2) pre-tension
预拉伸
1.
Numerical Simulation of Welding Residual Stresses and Distortions of Aluminum Alloy Cylinder under Pre-tension Stresses;
预拉伸条件下铝合金筒体焊接残余应力和变形的数值模拟
2.
Analysis on the tendency of welding hot cracks of aluminum alloy increased by longitudinal pre-tension
纵向预拉伸增大铝合金焊接热裂纹倾向的分析
3.
The effect of pre-tension stress on the welding distortion of 5A05 aluminum alloy sheet was numerically simulated by applying finite element method based on the ANSYS software.
应用热弹塑性应力应变关系理论,在考虑材料性能参数随温度变化的条件下,运用大型ANSYS软件通过有限元法模拟分析了预拉伸应力对5A05铝合金板材焊接变形的影响。
3) prestretching
['pri:'stretʃiŋ]
预拉伸
1.
The effects of prestretching before aging on the mechanical properties of high Cu/Mg ratio Al-Cu-Mg-Ag alloys at room temperature were investigated.
研究了时效前的预拉伸对高Cu/Mg比值的Al-Cu-Mg-Ag合金室温力学性能的影响。
2.
Combining with the productive practice, a prestretching structure is applied in this article to make the ballscrews work well at the time of temperature increment.
本文结合生产实践,采用一种预拉伸结构,使丝杆在温度升高的情况下满足了工作要求。
3.
The effect of prestretching on agehardening and tensile properties of Al5.
研究了时效前的预拉伸对耐热Al-5。
4) Preheating and Stretching
预热拉伸
1.
Improvement of Controlling Method for Preheating and Stretching Process of Geogrid;
土工格栅生产预热拉伸控制方法的改进
5) Pre-stretching
预拉伸
1.
With FEA based quenched stress, different stress distributions were obtained under different conditions of pre-stretching.
在获得淬火残余应力的基础上,模拟了不同预拉伸量对毛坯的淬火残余应力的消除。
2.
The effect of quenching temperature,the interval time from quenching to aging and aging institution to 2A70 aluminium alloy pre-stretching plate structure and properties are introduced.
介绍了固溶处理温度、淬火到时效间隔时间及时效制度等对 2A70铝合金预拉伸厚板组织和性能的影响 ;对其影响机理进行了分析和探讨 ;确定了 2A70铝合金预拉伸厚板的热处理工艺参数。
3.
The crack causes for pre-stretching plates of 7075 T651 alloy are analysed.
分析了７０７５－Ｔ６５１合金厚板预拉伸断裂的原因。
6) pre-stretch
预拉伸
1.
Elastic-plastic finite element method is used to analyze the pre-stretched aluminium alloy 2024 plate , from the FEM simulation, stress and strain contour throughout plate were obtained.
利用弹塑性有限元法对铝合金板材预拉伸过程进行了分析,获得了2024铝合金预拉伸应力和应变分布云图,所得结果对于预报铝合金预拉伸板预拉伸变形后的锯切区域提供了依据,对指导生产应用有重要意义。
2.
The principles of affecting on residual stresses in quenched aluminium alloy 7075 thick-plates have been studied and concluded in this article under different heat treatments,different water temperature and different pre-stretching techniuqes by the drilling method.
本文对 70 75铝合金厚板在不同淬火水温下 ,以及某一水温下淬火后经不同预拉伸量和不同时效工艺制度下淬火残余应力大小及变化规律进行了测试与分析。
3.
The distribution of longitudinal(x) and transverse(y) stress along thickness is given by the simulation for pre-stretch processing of aluminum alloy thick-plate using non-liner software MSC.
运用Marc有限元软件对厚板预拉伸过程进行模拟分析,获得厚板沿厚度纵、横两个方向应力分布。
补充资料：拉伸定向
分子式：
CAS号：
性质：合成纤维或塑料薄膜或板材的一种加工工艺。在一定的温度下向一个方向(单轴，常用于合成纤维)或互相垂直的两个方向(双轴，常用于薄膜和板材)拉伸，使大分子拉直而或多或少整齐排列，再在拉紧状态下冷却形成固定的结构。经拉伸定向的材料多种性能得到提高。双向拉伸定向可提高材料两个方向的性能，拉伸程度比单向拉伸相应地减小。若薄膜或板材单向拉伸，易引起各向异性，例如单向拉伸的有机玻璃，在拉伸的方向提高了强度，而和拉伸垂直的方向强度大为下降。
CAS号：
性质：合成纤维或塑料薄膜或板材的一种加工工艺。在一定的温度下向一个方向(单轴，常用于合成纤维)或互相垂直的两个方向(双轴，常用于薄膜和板材)拉伸，使大分子拉直而或多或少整齐排列，再在拉紧状态下冷却形成固定的结构。经拉伸定向的材料多种性能得到提高。双向拉伸定向可提高材料两个方向的性能，拉伸程度比单向拉伸相应地减小。若薄膜或板材单向拉伸，易引起各向异性，例如单向拉伸的有机玻璃，在拉伸的方向提高了强度，而和拉伸垂直的方向强度大为下降。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条