锝的TBP萃取化学行为研究

报道了在硝酸体系中用３０％ＴＢＰ－正十二烷萃取Ｔｃ（Ⅶ）的实验结果。详细研究了硝酸、硝酸铀酰、硝酸铀（Ⅳ）、硝酸铵、亚硝酸钠、硝酸锆、硝酸钚、硝酸铈，亚硝酰钌、硝酸羟胺、硝酸肼浓度及温度、相比等因素对Ｔｃ（Ⅶ）萃取化学行为的影响。实验结果表明，在不含铀的硝酸体系中，硝酸、硝酸铵、硝酸钚、硝酸锆、硝酸铈、亚硝酸酰钌浓度及萃取温度对Ｔｃ（Ⅶ）的分配比影响很大，而亚硝酸钠、硝酸肼及硝酸羟胺浓度对Ｔｃ（Ⅶ）的分配比影响较小；在含铀的硝酸体系中，硝酸浓度对Ｔｃ（Ⅶ）的分配比有影响，而萃取温度、硝酸钚、锆的影响较小。Ｔｃ（Ⅶ）在含或不含铀的硝酸体系中，与ＴＢＰ分别形成ＵＯ２ＮＯ３·ＴｃＯ４·２ＴＢＰ和ＨＴｃＯ４·３ＴＢＰ萃合物。     

德布罗意波及其非相对论近似

通过分析德布罗意义和速度特性，说明了它是相对论意义下的波，讨论了在非相对论量子力学中，以经典能量代入德布罗意关系式进行了计算的原因。     

衍射图像的信号采集和数据处理

针对衍射图像边缘弥散状态不易切准的问题，运用光电积分的方法确定采集点，然后将二值化的数据通过计算机采用最小二乘法进行计算，从而保证了测量结果的正确性     

高炉喷煤系统控制模型研究

安钢高炉喷吹煤粉系统 ,由于自动控制数学模型精度低 ,一直未能很好地实现自动喷吹 ,喷煤量波动较大 ,严重地影响了高炉炉况顺行和喷煤水平的提高。通过对现场采集的大量实验数据进行整理、分析与研究 ,提出喷煤量分别与罐压、补气量之间的可能关系 ,建立其在三维情况下的数学模型 ,在MATLAB环境下 ,作出其三维拟合曲面。利用二元回归方程计算结果与实测值进行比较 ,判断三维数学模型的显著性     

Determination of surface heat-transfer coefficients of steel cylinder with phase transformation during gas quenching with high pressures

In numerical simulation of quenching process, the boundary conditions of temperature field and stress field are very important, in which the boundary conditions of temperature field are very complicated. In order to simulate the thermal strains, thermal stresses, residual stresses and microstructure of the steel during gas quenching by means of the numerical method, it is necessary to obtain an accurate boundary condition of temperature field. The surface heat-transfer coefficient is a key parameter. The explicit finite difference method, non-linear estimate method and the experimental relation between temperature and time during quenching have been used to solve the inverse problem of heat conduction. The relationships between surface temperature and surface heat-transfer coefficient of cylinder have been given. The non-linear surface heat-transfer coefficients include the coupled effects between phase transformation and temperature. In calculation, physical properties were treated as the function of temperature and volume fraction of constituent. The results obtained have been shown that this technique can determine effectual the surface heat-transfer coefficients during gas quenching.     

马钢球团配用巴西PF精矿的工业试验及生产

介绍了马钢一烧竖炉配用巴西PF精矿生产球团的效果。工业试验及生产实践表明，配用20％～30％PF精矿后，不但可以降低球团矿原料成本，解决球团原料紧张的难题，而且球团矿冶金性能完全满足高炉冶炼需要。     

新型滑块在天钢带钢厂加热炉上的应用

针对原来加热炉水梁滑块结构、排列不合理造成的钢坯温度不均现象，改用新型孔洞式全热滑块。实践证明新型滑块设计合理、结构简单、施工方便、使用可靠，有效地提高了加热炉的热效率，减少了水梁黑印，改善了钢加热质量，明显的提高了带钢产量。     

新一代顺序式X射线荧光光谱仪——飞利浦PW2400型X射线荧光光谱仪

介绍了飞利浦ＰＷ２４００型新的Ｘ射线荧光光谱仪，它采用了多种新技术，包括脱Ｘ射线管（ＳＳＴ），直读光学定位传感器（ＤＯＰＳ）多道分析器（ＭＣＡ）及新的窗式软件。