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The foam 1 can be welded to or fastened to (with, for example, nuts and bolts) the structural material 2 prior to coating or molding.

泡沫1可以被焊接或固定到预先附着或模塑的结构材料2上。

Microstructures on curved surfaces of glass burettes and mini-protrusions of capillaries were fabricated with this method.

用微模塑方法在曲面及细小物体上进行了聚合物微结构的复制,并尝试了在Sol-Gel材料上进行微模塑。

In order to apply and popularize this technology in our country, on the basis of having received researches, this project has carried out some theory analysis and developed a double-faced stack mold, which can easily be turned into a single-face mold according to production task.

为了实现这项技术在国内的应用和推广,本课题在总结国内外研究成果的基础上,通过叠式热流道模塑的理论分析,研制了一副可由单层冷流道模具拓展成为双层叠式热流道的模具。

In 2006, Alpha was ranked as the 39th largest blow molder of plastic bottles and jars in North America according to Plastics News.

2006年,阿尔法被评为第39次大的打击模塑的塑料瓶和罐子在北美根据塑料新闻。

It is a high-tech enterprise established jointly by SCUT and the professor of the university in 1990s.

本公司成立于上世纪九十年代,是由华南理工大学和大学的教授共同组建的高新技术企业,专注于纸浆模塑成套生产线的研发、制造、销售,同时也有纸浆模塑模具、纸浆模塑产品的生产和销售。

The invention relates to polyimide molding powder with low melt viscosity and a preparation method, which uses 3,4'- diamino diphenyl ether, 3,3',4,4'-diphenyl ketone dicarboxylic anhydride, 3,3',4,4'-biphenyltetracarboxylic dianhydride, 3,3',4,4'- triphenyl diether dicarboxylic anhydride, 3,3',4,4'- diphenyl ether dicarboxylic anhydride and other monomers to polymerize at 100 to 140 DEG C, to get molding powder with a melt viscosity in the range of 1000Pa.s to 5000Pa.s.

本发明属于一种低熔体粘度聚酰亚胺模塑粉及制备方法,是采用3,4′-二氨基二苯醚同3,3′,4,4′-二苯酮四酸二酐、3,3′,4,4′-联苯四酸二酐、3,3′,4,4′-三苯二醚四酸二酐、3,3′,4,4′-二苯醚四酸二酐等单体在100~140℃聚合,获得熔体粘度在1000Pa.s~5000Pa.s范围内的模塑粉。

The invention provides a method for preparing an epoxy sheet-like mold plastic, which comprises the following steps: thickening the mixed epoxide resin system with diisocyanate compound; strengthening the chopped strand; making the tectorial into non-stick hand and shear epoxy sheet-like mold plastic, that is, preparing the epoxide resin paste and the epoxy sheet-like mold plastic; ripening.

本发明提供的制备环氧片状模塑料的方法是:采用二元异氰酸酯化合物对混合环氧树脂体系增稠,短切纤维增强,覆膜制备成不粘手可剪切的环氧片状模塑料;该方法包括环氧树脂糊的制备、环氧片状模塑料的制备和熟化步骤。

One of the important tasks in Resin Transfer Molding is the selection of appropriate processing parameters, so that the mold cavity will be filled completely and the composite quality can be guaranteed. Successful completion of these tasks requires knowledge of the resin flow, especially the resin flow front profiles, the pressure distribution, temperature distribution and the resin conversion distribution et al. In this paper, the governing equations of resin flow are presented on the base of the seepage mechanics, the thermodynamics and the chemical kinetics. The unlumped temperature system i.

中文题名树脂传递模塑工艺过程数值模拟与固化过程监测研究副题名外文题名 Investigation on numerical simulation and curing process monitoring of resin transfer molding 论文作者李海晨导师王彪教授学科专业工程力学研究领域\研究方向学位级别博士学位授予单位哈尔滨工业大学学位授予日期2002 论文页码总数10,121页关键词树脂固化光栅树脂传递模塑复合材料馆藏号BSLW /2003 /TQ320 /7 树脂传递模塑(Resin Transfer Molding,RTM)工艺过程研究的主要任务之一是选择合适的工艺参数,以使树脂充分润湿增强纤维,保证固化后产品质量。

For wire bonding,we got methods to avoid low-k material layer crack and IMC crack by gold wire selection,capillary design optimization,and wire bonding process window study;Wire sweep issue was declined,after use reverse wire bonding technology to get low wire loop,define high wire loop and low wire loop between neighbour wires to reduce wire cross and split transfer course into several segments by different transfer speed to control mold flow;For molding and to different packages,as a physical method,add suitable presser during different cure process,it can reduce warpage value;As chemical methods,optimized component of molding compound or added flexiblier,it can decline thermal stress and warpage.

在引线键合方面,通过对不同纯度金线的选择、劈刀设计的优化、以及对引线压焊工艺窗口的研究,找到了可降低焊盘碎裂,金铝间化合物分层等问题的方法;通过使用反向压焊来控制线线弧高度和在邻近线间使用高(来源:A7aB4848C论文网www.abclunwen.com)低线弧来控制线弧以及模塑注塑速度细分化的方法,有效降低了冲线值;在模塑方面,针对不同封装形式,通过封装模块在烘烤过程中优化外加压力的时机,利用物理方法有效减低了翘曲;此外从化学角度出发,通过对模塑材料配方的优化以及添加应力释放剂,有效降低了封装内的热应力,减小了封装模块的翘曲。

The results showed that the thickening effect of combined thickeners which were well suitable for viscosity conditions of low pressure molding and low cost conditions of industrialized production, was better than single thickener.

研究表明,联合增稠剂的增稠效果比单一增稠剂的增稠效果要好,更加符合低压模塑的粘度和工业化生产的低成本要求。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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