汽车后保险护杠热流道注塑工艺CAE与模具设计

以某型汽车后保险护杠为例,运用Moldflow对其进行热流道注塑CAE分析,确定了两种浇注方案。通过进一步对塑件注射时间、流动前沿温度、速度/压力变换时的注射压力、收缩痕迹、锁模力、料流融合线等的分析,确定该塑件注塑模具采用三点进胶方案。依据CAE分析结果,采用UG NX10对模具分型面、型腔和型芯、侧向分型抽芯机构、斜顶出抽芯机构、顶出系统及注塑模具整体结构进行了分析和设计。经试模验证,模具结构动作合理,塑件外形完美,符合设计要求,减少了修模次数,提升了产品研发效率。

汽车越野改装之护杠篇

加装汽车护杠，现在已经成为越野发烧友最基本的改装项目。一具坚实粗壮的防护杠虽然并不能提升越野能力，但在野外复杂的行驶环境中它能缓冲突如其来的外界冲击，像盔甲般保护你的战车。另一方面它还能起到装饰车身的作用，使你的座驾看上去个性鲜明。本期就给大家介绍有关护杠款式、安装方面的知识，为大家选用合适且质量过硬的护杠产品提供参考。

大侠，悠着点!——WINBO“逍客”运动型护杠

笔者曾与日产2008年的精心力作“逍客”有过短时间接触，当时我感觉无论从镜头中猎取它的倩影，还是直接与它四目交接，都能感受这部车的外观确实有形，并且成功糅合了都市越野的两面风情!不过，由于“逍客”的车身底裙为黑色设计，顾了耐脏耐刮的优点，却仿佛失了一点下盘的稳重感，若能在此加点吸引视觉的亮点，将能让“逍客”的外观更显均衡霸气。

Reflections on the Connotations of Ecotourism

As the most desirable option for sustainable development of tourism industry, ecotourism still suffers from lack of a clear-cut and widely accepted definition, posing many risks and threats in its practices. Based on collection and collation of various concepts and explanations of ecotourism both at home and abroad, this paper reflects on the current connotations of ecotourism in terms of four aspects, namely, objects of ecotourism, ecotourists, nature of ecotourism as well as the relationship between ecotourism and communities. In-depth analysis was performed in an effort to revise the misinterpretation of ecotourism and provide implications for ecotourism initiatives. The main conclusions and fruits of this article include： 1） The objects of eeotourism should go beyond natural, pristine, or even only primitive natural areas to including cultural resources together with their natural context which also deserve preservation. 2） Tourism operators, compared to tourists, have more leverage and hence should shoulder more responsibilities for conservation. 3） Ecotourism should serve as a principle to guide tourism initiatives towards sustainability, rather than merely a special tour package. 4） The theoretic foundation was laid for community participation in ecotourism.

画蛇添足

中国车主是很爱车的，从一些小细节就可见一斑。