哈尔滨炼油厂MTBE装置试生产

介绍了哈尔滨炼油厂ＭＴＢＥ装置的工艺路线、新技术的应用及特点；催化剂的装填及应用情况；总结了生产过程中遇到的一系列问题及解决办法；探索了平稳生产的新徐径，以保证装置安全、平稳、长周期运行；同时对反应器操作温度、催化蒸馏塔操作压力、原料中醇烯比等因素对异丁烯转化率及ＭＴＢＥ产品的影响做了简单的总结。     

Measurements of Stress Intensity Factors of an Interface Crack Under Mixed Mode Loading

The optical method of caustics has been utilised to measure both the stress intensity factor for a crack lying along the interface of an aluminium/epoxy bimaterial specimen, and the mode mixity arising from the difference in the elastic properties across the interface. Measurements were carried out by using a novel modification to the method whereby caustics are produced and measured from both sides of the specimen, so compensating automatically for the distortion induced in the specimen due to misaligned loading fixtures. A flat reflective surface across the interface was obtained by adhering a reflective coating to the specimen. Verification that this coating does not affect measurement accuracy was obtained by comparing stress intensity factors measured from coated and uncoated monolithic aluminium specimens where good agreement was found to exist between both measurements.     

烃氧化产物皂化后活性组分在油、水相的分配

用强酸酸化后测定乙醚抽出物酸量和酯量、溴甲酚绿两相滴定测定羧酸盐等方法研究了烃氧化产物皂化后活性组分在油、水相的分配。结果表明,在现行的用NaOH皂化烃氧化产物以制备水溶性石油磺酸盐的过程中有相当多的活性组分分配到油相;在水相和油相中均有大量羧酸酯存在,羧酸酯量远远超过羧酸盐量。     

柔性纤维混凝土的疲劳特性研究

将柔性纤维掺入水泥混凝土可以大幅度提高混凝土的弯曲疲劳等路用性能,并通过试验建立了柔性纤维混凝土的疲劳方程.结果表明,柔性纤维不但能使混凝土的强度提高,更主要的是可以在重交通条件下,可成倍地提高混凝土的弯曲疲劳寿命.     

环保中/高密度纤维板生产成本与性能问题 系统解决方案的研究(Ⅲ)

使用永港·伟方UF-1改性剂制备的改性脲醛胶粘剂生产E1级中纤板,胶粘剂生产成本降低10%,板材的各项力学性能均能达到国家标准,甲醛释放量达到了E1级标准,具有推广价值。     

论解放战争时期中间路线的兴衰及成因

抗日战争胜利初期,国共内战迫在眉睫。为挽救危局,强国富民,中间人士提出所谓中间路线,企图走“第三条道路”实现和平建国。在反动政府的强力弹压和中共的教育帮助下,中间路线退出历史舞台。民主党派的转型历程充分昭示了中国人民在中共领导下走上新民主主义道路的必然性。     

画龙点睛一包

皮包对于每一位女士而言都具有双重价值，即使用价值与装饰价值。选择一款款式、颜色与衣服相得益彰的皮包，对自己的整体魅力而言，确实是点睛之笔。     

储罐负压排泥技术

油田每年都有大量的储罐需要进行清罐排泥作业,通过对几种常用排泥方法的比较,认为负压排泥装置具有安装简单,操作方便,排泥效率高,排泥费用低等特点,文章详细介绍了储罐负压排泥装置的结构、原理以及安装与操作方法,并提出负压排泥装置使用的注意事项。     

安徽省长江干堤的几种加固措施

安徽省境内765km的长江干堤，由于均是在原来旧堤的基础上经逐年加高培厚的，修筑时均未按设计要求施工，致使堤身密实度不够，新老堤土之间结合不牢，在汛期高水位时易产生渗漏。20世纪70年代以来，安徽省高度重视对长江干堤渗漏隐患的处理，经过长期的实践，逐渐摸索出一套行之有效的除险加固方法，如锥探灌浆、灭杀白蚁、冲抓套吉、垂直铺塑防渗、粘土铺盖及压渗盖重等处理措施。使长江干堤的渗漏隐患得以基本消除，其具体作法可供类似工程借鉴。     

Development of Low-Oxide MCrAlY Coatings for Gas Turbine Applications

Advanced high-energy plasma systems are being used to achieve the benefits of the high-velocity oxy-fuel (HVOF) system without losing the inherent advantages of plasma for coating of gas turbine parts. MCrAlY coatings play a very important role in the performance and reliability of gas turbine components. One of the important considerations for next generation of gas turbines, which have more demanding conditions and need to withstand ever increasing operating temperatures, is that they should possess very low oxygen content levels in the coating. Low oxygen content coatings are applied by the expensive low-pressure plasma spray (LPPS)/vacuum plasma spray (VPS) technique for critical components in aero- and land-based gas turbines. This work deals with the development of low-cost LPPS equivalent coatings (having low oxygen content) using the high-energy high-velocity plasma spray (HEHVPS) gun and inert gas shroud. A comparison has also been made with CoNiCrAlY coatings by HVOF.