Study on Self-reinforcement of High Density Polyethylene(HDPE)Pipe Extruded under Compound Stress Field;
复合应力场下挤出HDPE管材自增强的研究
The tensile-strength and Young's modulus in cycle-direction of the expanded pipes increased by 30 % and 50 %~100 %,respectively,resulting in a self-reinforcement.
采用间歇式布袋内压扩张法扩张φ25mm×2mm 聚氯乙烯(PVC-U)管,得到管径增大的自增强管,其环向拉伸强度提高了约30%,拉伸弹性模量提高了50%~100%,并且管径在工作温度下稳定。
In respect to the technology and actual practice of metal injection molding(MI M),thispaper analyses different methods of self-reinforcement polymers,and the effect of injection pa-rameters on molding-filling performance.
结合金属注射成形工艺的理论与实践,分析了注射成型聚合物自增强的几种方法,研究了成形参数对毛坯性能的影响;从注射成形参数对喂料充模性能影响的角度,论证了这几种方法在金属注射成形中的应用可行性;分析了几种方法对金属注射成形注射工艺、制品的尺寸控制、粘结剂的用量和脱脂时间的影响。
Bilinear model in autofrettage theory and its examination;
自增强双线性理论模型及其考证
Experimental Research on the Relaxation of Residual Stress of Autofrettaged Thick-walled Vessel under Circulation Pressure;
循环压力下厚壁容器自增强残余应力的松弛试验
Numerical analysis of autofrettaged vessel for optimum overstrain extent;
自增强容器最佳超应变数值分析
HDPE induced systems with HMWPE content of 2%, 6% and 10% respectively were used to prepare two-dimensional self-reinforced pipelines via a two-dimensional compound stress field die.
将质量分数分别为2%、6%和10%的相对高分子量高密度聚乙烯(HMWPE)加入相对低分子量高密度聚乙烯(HDPE)中组成诱导体系,并通过双向复合应力场挤管装置制得了双向自增强HDPE管材。
co-blend modification of nonel tube plastics self-reinforced modification of nonel tube plastics and the study of multiple layer nonel tube, were given.
通过对影响塑料导爆管强度的因素进行深入的理论分析,提出了解决塑料导爆管强度不足的三种可能方案:管壁材料共混改性、管壁材料自增强和研制复合管壁导爆管,本论文对后两种方法进行了研究。
The self-reinforcing extrusion high-density polyethylene via equal channel angular extrusion (ECAE) was studied.
采用等通道转角挤压方法对高密度聚乙烯进行自增强挤压,研究和分析了挤压工艺条件与材料结构、性能之间的关系。
The Research Status and the Developing Trends of Self-reinforced Biomedical Materials;
生物医用材料自增强工艺的研究现状及前景展望
Several methods of self-reinforce polymers by meaning of injection molding are introduced,and combined with technology of MIM,from the point that the effect of injection parameters on molding-filling performance of feed stock.
通过介绍注射成型聚合物自增强的几种方法,结合金属注射成形工艺,从注射成形参数对喂料充模性能影响的角度,论证了这几种方法在金属注射成形中的应用可行性。
Concept of self-reinforced biomedical materials, especially some self-reinforced techniques such as spinning, melt injection and extrusion, fibrillated cluster compressing molding, free extension, solid-state extrusion, fibrillated compressing molding, are introduced.
介绍了生物医用材料自增强的概念,重点介绍了纺丝、熔体注塑和挤出、纤维集束模压成型、定向自由拉伸、固态挤出、成纤模压等自增强工艺,对这些自增强工艺的原理作了简要的介绍,并对生物医用材料的发展前景进行了展望。
Writing a grating by femtosecond coherent pulses,there was an erasure of grating during the reading process,so it is important for research a self-enhancement method to restrain the erasure.
在超快二波耦合配置下的LiNbO3∶Fe晶体中写入了体相位栅,通过一定的脉冲写入方法进行飞秒脉冲写入光栅的衍射自增强实验,在双光写入饱和后进行单写入光照射,产生了持续1 h的衍射自增强,同时又发现在光栅写入未饱和的时候改为单光写入也产生了衍射自增强现象,持续2 h。
Unified Autofrettage Analysis of Thick Wall Spherical Shell of Linear Strength Material;
线性强化材料厚壁球壳的统一自增强分析
Studing on Biaxially Oriented Self Reinforcement Plastic Pipes Eqiupment;
双向自增强塑料管材成型装置的研究
That boosts up my confidence.
那增强了我的自信心。
To reinforce legal education and improve the sense of self-protection.
加强法制教育,增强自我防范意识。
Enhancing Proprietary Innovation Strengthening Yunan s Core Competitive Power in Mining Industry;
加强自主创新 增强云南矿产业竞争力
The Effects of Self-esteem on Self-enhancement and Ingroup Bias;
自尊对自我增强和内群体偏向的影响
Studies on the Reinforced and Self-humidifying Membranes for PEMFCs Applications;
燃料电池用增强及自增湿质子交换膜的研究
Non-linear adaptive gain algorithm to image enhancing based on multiwavelet transform
基于多小波变换非线性自适应增益的图像增强
Adaptive Speech Enhancement Based on Discrete Cosine Transform in High Noise Environment;
强背景噪声自适应离散余弦变换语音增强
About the Reinforcement of the University-Industry-Science Partnership and the Enhancement of Independent Innovation Ability;
加强高校产学研结合 增强自主创新能力
COMPUTING STRESS INTENSITY FACTOR USING PARTITION OF UNITY ENRICHED NATURAL ELEMENT METHOD
单位分解增强自然单元法计算应力强度因子
network of self-confidence seminars for women
增强妇女自信心讨论会网络
His encouragement was a great prop to her self-confidence.
有了他的鼓励, 她的自信心大大增强了.
You're too timid you must try to assert yourself more.
你太畏缩了--要尽量增强自信心.
The intensification of the immunological response represents the body's natural defense.
增强免疫反应代表身体的自然保卫。
Strengthening developing country's capacity for selfdevelopment.
增强发展中国家自我发展的能力。
fortify oneself by prayer and meditation
通过祈祷和冥想增强自己的信念.
There are two things which will surely strengthen our self-control.
有两件事肯定会增强我们的自制力。
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号