铜汞药金的模拟实验研究

铜汞药金（曾青金）是中国古代炼丹术中的药金之一。本文以曾青金制备的古代记载为依据，在赵匡华研究的基础上进行模拟实验。定量地讨论了温度、时间和四种盐的影响，并对古代记载的明矾、ＮＨ４Ｃｌ，ＮａＣｌ，ＨＡｃ等加入的作用进行了探讨。     

杂散电流对阴极保护效果影响的模拟实验

本文通过模拟地下管道阴极保护的现场，测定了地下的杂散电流及其对阴极保护效果的影响，并对相关问题进行了分析。     

ZG20SiMn高温流变性能研究

在Gleeble-15000热力模拟实验机上测定了ZG20SiMn从300℃到固相线温度区间的流变性能，辨识出其符合流变学[H]-[N|S]模型以及流变参数。将流变学模型和拉伸实验得到的弹塑性模型进行了比较分析，结果表明流变学模型更适合描述铸件的高温力学行为。     

高温电极沥青质量问题及对策

本文对高温电极沥青出现的质量问题进行了分析，找出了影响改质沥青质量的原因并进行了实验室模拟实验，在此基础上进行了二次试生产并取得了成功。本技术提高了现有高温电极沥青生产设备对中温沥青原料的适应范围。     

CH4-CaSO4和H2S-Fe2O3反应体系的热力学和动力学研究

The destruction of hydrocarbon in deep carbonate diagenetic environment is one of problems on the formation of oil and gas. Organic-inorganic reactions in the process of TSR(Thermochemical Sulfate Reduction) are the main reason to make disappearance of the hydrocarbons. The work in this field has often been the subject of much research work in recent years. In this paper, the thermodynamics of CH4-CaSO4 and H2S-Fe2O3 systems is discussed to investigate the possibility of reactions. It is found that these two reactions can proceed spontaneously.Increasing temperature is favorite for CH4-CaSO4 system but disfavorite for H2S-Fe2O3 system. Thermal simulation experiments were carried out using autoclave at high temperature and high pressure. The properties of the products were characterized by microcoulometry, FT-IR and XRD methods. On the basis of the experimental data, a reaction kinetic model is developed and kinetic parameters are determined.     

"大肚子"环空液体流动规律的实验研究

针对现场固井在"大肚子"环空段封固质量较差的情况,本文研制了含有"大肚子"环空段的注水泥(液体)流动模拟实验装置。利用该装置,研究井径扩大率、流量、液体流变性能等对"大肚子"环空处的流速场的影响规律。得到了不同情况下(井径扩大率、流量、液体流变性能等变化)"大肚子"环空段不同位置径向截面的流速曲线变化情况,为研究"大肚子"环空段的顶替机理提供了一定的数据资料。     

高气速选择性分离氨碳混和气模拟实验

采用二级串联鼓泡吸收器对NH3／CO2摩尔比为2：1的混和气体进行高气速选择性吸收，获得氨的总吸收率为96．7％，二氧化碳的总吸收率为33．1％，二级吸收器出口气相CO2摩尔含量达90．9％，液相氨碳摩尔比为5．85。将此吸收液在加压下精馏分离氨，基本可以把吸收液中游离氨回收。分离游离氨后的溶液在常压下进行解吸，蒸馏塔出口液体含NH3和CO2量仅为0．014％和0．006％，解吸气回串联吸收器进行循环吸收分离。对预计工业分离过程进行物料和能量衡算，分离1kg液氨需1MPa的蒸汽约3.2kg。     

Modeling of metadynamic recrystallization kinetics after hot deformation of low-alloy steel Q345B

Based on the steady-state strain measured by single-pass hot compression tests, the method by a double-pass hot compression testing was developed to measure the metadynamic-recrystallization kinetics. The metadynamic recrystallization behavior of low-alloy steel Q345B during hot compression deformation was investigated in the temperature range of 1 000–1 100 °C, the strain rate range of 0.01–0.10 s⁻¹ and the interpass time range of 0.5–50 s on a Gleeble-3500 thermo-simulation machine. The results show that metadynamic recrystallization during the interpass time can be observed. As the deformation temperature and strain rate increase, softening caused by metadynamic recrystallization is obvious. According to the data of thermo-simulation, the metadynamic recrystallization activation energy is obtained to be Q _md=100.674 kJ/mol and metadynamic recrystallization kinetics model is set up. Finally, the error analysis of metadynamic recrystallization kinetics model proves that the model has high accuracy (correlation coefficient R=0.988 6).