防腐保温业务任重道远、大有可为

阐述了国内石油工业的现状与未来，对中国石油工程建设协会防腐保温技术专业委员会的工作提出了要求和建议。     

冷却条件对超级钢钨极氩弧焊焊接接头组织性能的影响

采用钨极氩弧焊焊接方法对400MPa级超级钢进行焊接，并对焊后空冷和水冷两种冷却条件下的焊接接头进行了组织性能分析。研究结果表明，水冷条件下，其接头的综合力学性能要优于空冷条件，可以应用与实际生产。     

水洗钽粉中氮的测定

针对水洗钽粉中杂质元素的干扰,采用EMGA-620W氧氮分析仪,测定了水洗钽粉中的氮,并与脉冲气相色谱法测氧氮(联测)进行了比较,认为该法快速、准确、可靠。     

Cu-Al-Be形状记忆合金的应力腐蚀性能

用恒载荷法和慢应变速率法及SEM研究了Cu-Al-Be形 状记忆合金在甘油、海水和氨介质中的应力腐蚀性能.结果表明，Cu-Al-Be合金具有良 好的抗海水应力腐蚀性能和较低的氨介质应力腐蚀倾向.单相马氏体有较 好的耐海水腐蚀能力，可减少腐蚀引起的裂纹源；外应力下马氏体的孪晶变形和变体间的界 面迁移，则有利于松弛应力集中，阻碍和延缓腐蚀裂纹源的扩展，从而提高Cu-Al-Be合金的 应力腐蚀能力.     

Water vapor and oxygen permeability of wax films

The water vapor (WVP) and oxygen (O₂P) permeabilities of beeswax (BW), candelilla wax (CnW), carnauba wax (CrW) and microcrystalline wax (MW), formed as freestanding films, were determined. CnW and CrW both had small values for O₂P (0.29 and 0.26 g·m⁻¹·sec⁻¹·Pa⁻¹ × 10⁻¹⁴, respectively), which are less than half the value for high-density polyethylene and about a decade greater than the value for polyethylene terephthalate. O₂P values for BW and MW were about 6−9× greater than those of CnW and CrW. WVP of CnW was 0.18 g·m⁻¹·sec⁻¹·Pa⁻¹ × 10⁻¹², which is about one-half the value for CrW and MW and about one-third the value for BW. The WVP of CnW was somewhat less than that of polypropylene and somewhat greater than that of high-density polyethylene. Differences in permeabilities among the wax films are attributed mainly to differences in chemical composition and crystal type as determined by X-ray diffraction.     

黄金冶炼厂污染源治理技术

本文阐述了采用加温加压无氰解吸、金电解精炼，活性炭酸洗、火法再生产工艺，所产生污染物的治理技术。     

Simulation of nitrogen dynamics and biomass production in winter wheat using the Danish simulation model DAISY

A dynamic simulation model for the soil plant system is described. The model includes a number of main modules, viz., a hydrological model including a submodel for soil water dynamics, a soil temperature model, a soil nitrogen model including a submodel for soil organic matter dynamics, and a crop model including a submodel for nitrogen uptake. The soil part of the model has a one-dimensional vertical structure. The soil profile is divided into layers on the basis of physical and chemical soil characteristics. The simulation model was used to simulate soil nitrogen dynamics and biomass production in winter wheat grown at two locations at various levels of nitrogen fertilization. The simulated results were compared to experimental data including concentration of inorganic nitrogen in soil, crop yield, and nitrogen accumulated in the aboveground part of the crop. Based on this validation it is concluded that the overall performance of the model is satisfactory although some minor adjustments of the model may prove to be necessary.     

磁化水配料对TiO2压敏陶瓷电性能和微观结构的影响

研究了使用磁化水配料对TiO2压敏陶瓷电性能和微观结构的影响。电性能测量及SEM和XRD微观结构分析结果表明：磁化水配料制备的TiO2压敏电阻具有较低的压敏电压和较高的非线性指数α。材料的主晶相为金红石相，由Ce,Si,Ti组成的Perrierite第二相均匀分布在晶界区域。因此，采用磁化水配料可以改善材料的工艺性能和陶瓷烧结体的微观结构，从而提高元件的电性能。     

酪素/蒙脱土插层复合物制备及其耐水性能研究

在十六烷基季胺盐存在下进行蒙脱土插层得到[H4N(CH2)15CH3]+-蒙脱土插层物,酪素加热溶解后与[H4N(CH2)15CH]+-蒙脱土插层物混合,保温复合,然后沉淀分离,得到干酪素/蒙脱土纳米复合物。用XRD,TEM和TGA表征酪素纳米复合物的结构与性能。结果表明,插层复合物中蒙脱土晶片间距扩大,插层复合物耐热性能明显提高,与纯酪素相比,复合物拥有极好的耐水性能,特别适用于制备高速高性能啤酒生产线用贴标胶。     

气流床水煤浆气化技术的应用现状及开发进展

气流床水煤浆气化是煤高效、洁净利用的一项关键技术。简述了具有代表性的气流床水煤浆气化技术的应用现状及开发进展,并分析了影响水煤浆气化的主要因素,如烧嘴、耐火砖、进料系统、激冷环等,提出了一些改进措施。