济钢第一炼钢厂降低钢铁料消耗实践

济钢第一炼钢厂通过优化入炉原料结构,改进冶炼工艺,实施少渣炼钢,有效减少了转炉吹损,降低了钢铁料消耗成本,2002年增加炼钢综合经济效益3100多万元。     

Equilibrium Studies of the System'(Fe,Co)O'–(Fe,Co)3O4 by Solid-State emf Measurements in the Temperature Range 970 to 1370 K

The equilibrium reaction 3'(Fe, Co)O'( ss ) +1/2O₂ ( g ) ⇄ (Fe, Co)₃O₄( ss ) was studied in the temperature range 970 to 1370 K for seven different total compositions of molar ratios 0.5 < Fe/(Fe + Co) ≤ 1.0. The equilibrium pressures of oxygen were determined by using galvanic cells incorporating calcia stabilized zirconia as solid electrolyte and the Fe/Co ratios in the solid-solution phases by wavelength dispersive spectrometry microprobe analyses. The activities of 'FeO' in the cobaltowüstite phase were then derived from the experimental results obtained.     

应用光度分析法测定铁和渣中的微量镓

用光度分析法测定镓，为适应多种试样的测定，补做了个别条件试验。用该方法测定了铁、渣、浸钒渣等六种不同类型试样中镓的含量，分析其精度精度符合要求。     

连铸板坯的鼓肚变形与应力分析

以粘弹性薄板为模型，应用材料流变学理论及弹性薄板理论，分析计算了连铸板坯在钢水静压力与不均匀温度场作用下所发生的鼓肚变形与应力。计算结果与宝钢板坯连铸机的设计公式所得结果相吻合。此外，还得出了铸坯对夹辊的作用力。     

Lubricating behavior of iron rhenate and its relation to matching pairs

The iron rhenate was compounded by chemical method, which may be generated during wear process of Fe-Re alloys at elevated temperature. The friction coefficient of iron rhenate has been determined by a pin-on-disc device. The results show that iron rhenate plays role of lubricating at RT-600 °C. The lubricating behavior is related to the matching pairs. The hardness of the materials of matching pairs, compatibility of iron rhenate with materials of matching pairs and surface roughness of disc affect the lubricating behavior of iron rhenate mostly. The principle of matching pairs is proposed. Project supported by the National Natural Science Foundation of China Synopsis of the first author Xiong Dangsheng. associated professor, born in 1960. Current research fields include high-temperature self-lubricating alloys and tribological properties of material.     

铸轧5052合金冷隔缺陷产生的机理研究

阐述了5052合金铸轧坯料生产时冷隔缺陷产生的机理,结合超型FATA—HUNTERΦ1003×1850mm机多年的生产实践经验,提出了消除铸轧冷隔缺陷的措施。     

创新铁路运输方式实现750m^3高炉富余铁水分流

针对750m^3高炉铁水生产富余状况，制订了富余铁水向铸铁机铸铁的调送方案，通过创新思维、系统挖潜、优化资源配置等措施的实施，保证了750m^3高炉的正常生产，取得了良好效果。     

浅谈原油顺序输送过程中混油量的计算

针对原油顺序输送工艺的特点,分析了原油顺序输送产生混油量的原因,给出了混油量计算公式。指出混油的形成与输送距离、油品种类、输量、停输时间、地形等有关。举例对东黄复线顺序输送所产生的混油量进行分析计算,给出了顺序输送过程中减少混油量的措施。     

具有厚大断面的大型球墨铸铁铸件的生产

首先通过电炉—LF精炼炉—VD精炼炉—包内球化的工艺路线获得了足够的优质铁液,然后通过选取合适的分型面、设置合理的浇注系统、设计专用的冷铁、安放足够大的保温冒口和上表面加大加工余量来去除夹渣等措施,成功生产了具有厚大断面的大型球墨铸铁铸件。     

Increasing the number of psychologists of color: Public policy issues for affirmative diversity.

This article identifies the key issues involved in the debate about affirmative action. The June 2003 Supreme Court decisions allowing consideration of race to ensure that there is a "critical mass" of African American, Latino/Latina, and Native American applicants to higher education are addressed. Social psychologists have identified key myths and provided clarifications about the need for and consequences of strategies used to promote equal opportunity for persons of color and women. A brief history of affirmative action and of the problems it was designed to solve is provided. The accomplishments, benefits, and compelling interest of diversity and affirmative action are described, as well as the concerns and counterpoints. The lack of a substantial applicant pool in psychology hinders progress toward diversity. Alternative strategies for remedying this lack beyond affirmative admissions policies in psychology are briefly discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)