1) push-expand
挤扩
1.
In this paper, the conception of push-expand multi-under-reamed concrete pour-pile is introduced, and the main characteristic of the type pile, comparing with the usual concrete pour-pile, is analysed.
主要介绍了挤扩多支盘混凝土灌注桩的概念及其不同于普通直孔混凝土灌注桩的主要特点,以及该型桩的发展现状。
2) Extending-extrusion
扩展挤压
1.
3D-FEM Mathematical Simulation of the Contacting-line Extending-extrusion Forming Process;
铜材接触线扩展挤压成形的三维有限元数值模拟
3) extruding/extending
挤压扩展
1.
How the metal flows in the extending cavity during continuous extruding/extending forming in semi-solid state was simulated by finite element method (FEM) to investigate the metal flow behavior in the moulds designed with different parameters.
利用有限元法对半固态连续挤压扩展成形过程中扩展腔内的金属流动规律进行模拟,得到了不同模具设计参数下的金属流动规律·结果表明,高固相率半固态金属浆料以层流方式填充模具,扩展腔内半固态金属浆料流动速度从扩展腔中心区域向两边侧壁逐渐减小·随着扩展角、模具台阶长度的增大,模具出口横断面上金属流动速度趋于更加均匀,随着模具定径带宽度增大,金属流动不均匀性增加,同时台阶太长,模具扩展腔两侧会出现金属流动的死区或涡流·在合理的模具设计条件下,可以实现半固态连续挤压扩展成形
4) diameter-expanded extruding
扩径挤压
1.
The analysis on tube-shaped object in the course of diameter-expanded extruding;
筒形件扩径挤压过程分析
5) extending extrusion
扩展挤压
1.
Finite element modelling method was adopted to analysis rule of metal flowing during the process of semisolid extending extrusion A2107 alloy.
应用有限元方法分析了半固态扩展挤压A2017合金过程中金属的流动规律。
2.
It is shown that mass flow velocity decreases gradually from the center to sides of mould wall during the extending extrusion process of semisolid A2107 alloy.
半固态扩展挤压A2017合金过程中,从扩展腔中心区域向两边侧壁合金速度逐渐减少,有时在从中心向两边侧壁的中间区域出现涡流的过渡区;设计无台阶α且较小倾角θ的扩展挤压模较为合理,在定径带断面的长向与宽向上尺寸应尽量相等;浇注温度高于790℃时,由于合金与模具的粘结以及热应力的作用使制品表面出现裂纹,而浇注温度低于690℃时,制品表面产生浪形,比较合理的浇注温度为710～750℃;通过控制浇注温度得到了表面状态良好的断面尺寸为14mm×25mm的A2017扁型材,其断裂强度比标准值提高了100MPa,延伸率提高了29%
6) blasting and squeezing
爆扩挤密
补充资料：充扩
1.扩充，开拓。
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