die bell

Injection mould with ball screw stripping and ball bearing and ta-pered wedge fixed-distance pull off mechanism;

带滚珠丝杠脱模及滚珠斜楔拉模定距装置的注射模

κ-ε turbulence model,Eulerian model and discrete phase model(DPM) were used in the simulation of three-dimensional two-phase flow in the new type wet dedusting and desulphurization tower with umbrella type plates by using FLUENT package,and SIMPLE algorithm was used in the calculation.

利用FLUENT软件对新型的伞罩型湿法除尘脱硫塔内的三维二相流场进行数值模拟,气相采用κ-ε湍流模型,颗粒相采用离散相模型(DPM)和欧拉模型,选择SIMPLEC算法进行计算。

Two kinds of models (Lagrangian model and Eulerian model) were established to investigate the origin of acid rain in Nanning.

建立2类模式(拉格朗日烟团轨迹模式和欧拉模式)研究南宁市的酸雨成因,计算出硫沉降场的分布特征和南宁市与广西各地区之间硫输送的关联矩阵。

The influences of high temperature heat treatment condi-tion on orientation degree and its relation to tension modulus have been discussed.

本文采用单色Ｘ射线透射平板照相法，测定了ＰＡＮ基炭纤维高温热处理后其内部石墨微晶的取向度，讨论了高温热处理条件对取向度的影响，以及取向度与抗拉模量的关系。