To satisfy the requirements of fast producing,low cost manufacture and large thickness preforming in the field of non-resin winding cylinder composite,the equation of retracing cosine curve was deduced based on the section principle.
最后基于对余弦折回曲线的分析,利用数值模拟证实余弦折回曲线在干纱缠绕圆柱壳体预成型中有利于高速加工;在缠绕厚度相对不大且需要高速缠绕加工情况下,可采用余弦曲线作为端部区段的折回曲线。
On the base of the research of the non-resin winding cylinder preforming technique,particular arithmetic used to develop the computer software was indicated.
本文述叙了三维图形标准OpenGL模拟系统的基本原理,结合干纱缠绕圆柱壳体预成型技术的研究,论述了开发此计算机软件的具体算法。
In this dissertation, the technology of cylinder non-resin winding preforming was put forward and studied comprehensively and systematically.
本文提出了适于快捷生产、低成本加工、厚壁圆柱壳体制件成型的“干纱缠绕圆柱壳体预成型技术”，并对这一工艺进行了较为全面和系统的分析研究。
The technological requirements for preparing tackified preforms by using LCM were painted out.
总结了20世纪90年代以来关于复合材料液体模塑成型(LCM)技术中纤维预成型体制备技术的相关文献报道,指出LCM用纤维预成型体应满足的工艺性要求,且对当前国内外纤维预成型体的成型方法及其制备技术中应用的几种增粘剂进行了分析和概述,并对纤维预成型体制备技术的发展方向进行了展望。
The design of preform and forging die is analyzed with the precautions and problems often observed during hog-forging.
本文以冲击块为例介绍了粉末冶金热锻的工艺,对热锻中的预成形坯设计、锻模设计作了进一步探讨,分析了热锻中的注意事项和经常出现的问题。
SiCp and binder were mixed together and SiCp preforms were prepared by warm pressing, thermaldebinding and pre-sintering.
在本实验中将SiC颗粒与粘结剂混合,温压制备成坯块,进行了热脱脂与预烧结,研究了热脱脂一预烧结后坯块的线性膨胀率、孔隙度、强度与工艺条件的关系,对预成形坯的显微组织形貌进行分析。
Microstructure of 3D six-directional braided preforms;
三维六向编织预成型件中纱线的交织结构
Three weaving methods of cone-shaped tubular woven preforms were discussed.
分析了三种锥形管状预成型机织物的织造方法。