1) particles / cold model
颗粒/冷模
2) pellet cooler
颗粒冷却器
3) particle model
颗粒模型
1.
Latest progresses in particle models of olefin polymerization were reviewed.
综述了烯烃聚合过程中各种颗粒模型的研究进展,并着重讨论了聚合物颗粒形态和聚合过程之间的相互关系。
2.
Several suitable selected particle interaction models for different soil types were briefly introduced, including dry particle models with or without adhesion and wet granule models with Newtonian or non Newtonian fluids, of which the models for non Newtonian fluids have recently been found by the authors.
介绍了若干可供选择的适合不同土壤条件的颗粒作用模型 ,包括无粘连 /粘连干颗粒模型和牛顿流体 /非牛顿流体湿颗粒模型 ,后者是作者与合作者们近年来所致力于的离散元建模方面的新成果。
3.
A modified particle model was proposed and used to calculate the structural parameters of the W/O microemulsion of H2O/span-80+isopentyl alcohol/cyclohexane by dilution method.
提出了一种修正颗粒模型,并以该模型为基础用稀释法求得了水/span-80+异戊醇/环己烷W/O型微乳液体系的结构参数,包括水内核半径Rw、颗粒有效半径Re、界面层厚度le、表面活性剂平均聚集数ns、颗粒总数Ne等;并求出了异戊醇从连续相(C)转移到界面层(i)的自由能变化ΔGc0→i。
4) pellet dies
颗粒模
1.
it is considered that this process helps to increase the survice life of pellet dies,replace imports thus it possesses great worth in application.
本文通过对4cCrNiMo钢表面微渗碳淬火加底温回火处理新工艺的研究,认为对提高颗粒模寿命,取代进口。
5) beam-particle model
梁-颗粒模型
1.
3-D beam-particle model for simulating fracture in rock material;
三维梁-颗粒模型在岩石材料破坏模拟中的应用
2.
The process of the projectile penetrating into plain concrete is numerically simulated with the BPM2D(beam-particle model in two dimensions).
采用二维梁-颗粒模型BPM2D(beam-particle model in two dimensions)模拟了刚性弹丸侵彻无钢筋混凝土的过程。
3.
The perforation into a plain concrete panel with ogival and flat nose perforators is numerically simulated with the BPM 2D (beam-particle model in two dimensions).
用梁-颗粒模型BPM2D对卵形头和平头动能弹贯穿混凝土平靶的过程进行数值模拟,给出贯穿过程中混凝土内部速度场的变化情况及混凝土的破坏区域。
6) pseudo-particle model
拟颗粒模型
补充资料:管材旋转模冷拔
管材旋转模冷拔
cold drawing of tube through revolving die
的主动旋转外模与顶头(或芯棒)之间拔制管材的工艺(见图)采用旋转模拉拔,拉拔的部分变形为滚轧所取代,滚珠或滚柱与管材接触表面之间为滚动摩擦。摩擦系数小,可以降低拔制力。这对薄壁管和低塑性材料的拉拔很有利。但是,旋转模冷拔管材存在以下的缺点:(1)旋转槽内滚珠或滚柱的咬入角较小(镇15。),睿二瑙 滚珠式旋转模的结构及拔管过程 l一端支持环;2一安装在旋转支持器内的模套; 3一管材;4一芯棒guaneai xuanzhuanmu lengba管材旋转模冷拔(eold arawing of:ub。thro-u只h revolving die)室温下在装有滚珠或渡杜使得每转的减壁量不能取大,一般小于滚珠或滚柱直径的2%;(2)为防止管体表面出现螺旋线,旋转模每转动一次管材的轴向送进量必须很小,对于滚珠组装的旋转模,约为管材周长的2%一4%;(3)模内相互接触的滚珠或滚柱体之间以及它们与模套之间摩擦能耗的比重也很大。由于上述原因,旋转模冷拔管材未能在大生产中广泛应用。 (周忠民)
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