裂解色谱法分析烷基胺类两性表面活性剂的疏水基

先用离子交换法使氯化烷基二甲基乙酸铵转化成季铵碱。再将微量的碱淀积在裂解送样器的探头上。当送样器插入裂解器即发生霍夫曼降解。样品的各长链烷基因降解反应而变成与烷基有相同碳数的正烯-1并由色谱仪分析,烯烃的碳数用logt(?)～n曲线推定。各烯烃的重量比用它们的峰面积计算。本法还可分析烷基胺聚氧乙烯醚,但必须用碘甲烷彻底甲基化。本法灵敏、简便,结果重复。     

增强环境意识,通过技术改造加速老企业污染治理

“八、五”以来，抚顺铝厂增强环境意识，通过多渠道措施金进行总体技术改造，摸索出一条加速老企业污染治阳的有效途径，取得了较大成效。     

彝族火把节

火把节是所有彝族地区的传统节日,流行于云南、贵州、四川等彝族地区.白、纳西、基诺、拉祜等族也过这一节日.火把节多在农历六月二十四或二十五日举行,节期三天. 佳节之前,各家都要准备食品,在节日里纵情欢聚,放歌畅饮.火把节期间,各村寨以干松木和松明子扎成大火把竖立寨中,各家门前竖起小火把,入夜点燃,村寨一片通明.同时人们手持小型火把成群结队行进在村边地头、山岭田埂间,将火把、松明子插于田间地角.远处望去,火龙映天,蜿蜒起伏,十分动人.     

Improvement of prediction model for work roll thermal contour in hot strip mill

Though high accuracy of the thermal contour was obtained while adopting finite element method, it could not meet the real-time requirement. One-dimensional finite difference method could realize real-time control in the case of neglecting both the circumferential and radical heat exchange, but the over-simplified modes resulted in poor accuracy. And two-dimensional full explicit difference was also limited in practical application since its time step was restricted to keep the model stable. Consequently, a new method of alternating direction finite difference was introduced and discussed in the model’s stability, calculating speed and precision. Specific work roll after one real rolling unit was researched, The result shows that error of temperature on work roll surface between measured and calculated values is within 5 °C. The influence of rolling rhythm and strip width on thermal crown was also studied. The conclusion is verified theoretically and practically that it can maintain absolutely stable and meet the online requirement.     

86CrMoV7冷轧辊坯缺陷的定性及解决办法

对86CrMoV7冷轧辊坯进行超声探伤、低倍取片及断口分析，查出了产生不合格品的主要原因，改进工艺，使辊坯探伤合格率显著提高。     

核动力装置用阀门的虚拟维修训练

介绍了虚似现实系统的技术特点，并结合核动力装置用阀门的特殊性，开发了桌面环境下使用的阀门维修CAI系统。     

三维热锻中动态再结晶过程的数值模拟及试验研究

开发的三维热耦合刚粘塑性有限元软件既可进行塑性变形和传热过程的耦合分析，又具有模拟热加工过程中和变形后内部组织变化并预测工件力学性能的功能，后者即所谓的”微观模拟技术”。应用该软件分析了三维热镦粗工艺的动态再结晶过程和再结晶的晶粒度分布。     

基于声品质评价的缸盖罩NVH优化

以某发动机塑料缸盖罩为研究对象,通过声品质评价来分析其影响声品质的结构并进行优化。首先对发动机顶部声压级进行测量并对其进行声品质评价,分析得到影响声品质的频段。建立发动机有限元模型并进行模态试验验证,建立多体动力学模型计算缸盖罩振动并与试验对照,确认模型有效性。根据声品质评价分析结果找出影响声品质的缸盖罩模态,并对其进行结构优化与振动计算验证。将改进后的缸盖罩再进行顶部声压级测量和声品质评价。与原机型对比发现顶部声压级有所降低,声品质也得到明显改善。