1)  Preload
预拉处理
2)  pre-pull
预拉
3)  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.
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.
The temperature and stress fields,which appeared during welding of aluminum alloy sheet under different pre-tension stresses,are numerically simulated by using ANSYS finite element analysis software and programming with APDL language.
利用ANSYS有限元分析软件,通过APDL语言编程,实现了不同预拉伸应力条件下铝合金平板对接焊过程中,温度场及应力场的模拟分析。
4)  prestretching
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 agehardening and tensile properties of Al5.
研究了时效前的预拉伸对耐热Al-5。
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)  high prestress
高预拉力
参考词条
补充资料:表面预处理
分子式:
CAS号:

性质:电镀前镀件表面的加工、处理过程,主要包括磨光、抛光、脱脂、浸蚀等工序。电镀零件表面除了存在自然氧化膜和一般接触的油污之外,有的零件还会带有热处理的氧化皮、淬火油、防锈油、润滑油等污垢。表面预处理的目的是为电镀过程提供一种平滑、有附着力的基体表面。不同的镀件应根据其表面状态、电镀层的要求和材质选择表面预处理的工序。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。