包头稀土精矿冶炼稀土硅铁合金新工艺技术分析

本文就包头30％稀土精矿直接入电弧炉冶炼稀土硅铁合金新工艺的实践,试图从技术上加以分析探讨,以解释这一业已完成的新工艺路线的合理性。     

稀土功能材料现状与分析

对我国稀土材料产品进行了概述，并与世界水平进行了对比，叙述了稀土永磁材料，汽车尾气稀土净化催化剂、稀土荧光粉，稀土钨电极的现状及国内外发展状况和存在问题，对发展稀土新材料进行了分析。     

从稀土浸出液萃钍萃稀土后的废水中回收钍的试验研究

采用P507为载体的煤油-Span80-P507 -HCl组成的液膜体系,研究了自稀土浸出液萃钍萃稀土后的工业废水中回收钍的基本原理,考察了制乳条件、油内比、水乳比、pH值和提取时间等因素的影响.     

稀土电解槽温度场的数值分析

研究了氟化体系稀土电解槽温度场问题的数值模拟分析方法，采用有限元法计算了新的电解槽温度场，其分析结果，为新槽体的开发设计提供了参考依据。     

江西稀土产业发展思路探析

分析了江西稀土产业原矿、氧化物分离和稀土金属的生产现状，指出：稀土资源优势不等于经济优势。江西稀土产业背上资源优势的包袱，阻碍其产业链往下延伸。要做大做强江西稀土产业，关键在于发展稀土深加工产品和稀土应用材料，想方设法延伸稀土产品的价值链，增加稀土产业的经济总量。     

稀土合金的金相样品制备及组织分析

以Ｌａ－Ｃｏ－Ｎｉ三元系和Ｎｄ－Ｃｕ、Ｇｄ－ＣＵ二元系为例,介绍了稀土合金相试样的制备步骤和原则,给出了用该方法制作的５Ｌａ－７３Ｃｏ－２２Ｎｉ、５Ｌａ－８９Ｃｏ－６Ｎｉ、２５．６Ｌａ－３４Ｃｏ－４０．４Ｎｉ、Ｎｄ－６９Ｃｕ、Ｇｄ－１２Ｃｕ等成分合金的金相照片,并进行了适当的分析。     

提高海绵钛破碎合格品率的分析与优化

通过改进破碎方式提高海绵钛合格品率及破碎机产能,结合生产实践对改进的破碎机给料量及控制方法等进行了详细阐述,分析了提高海绵钛破碎合格品率及破碎机产能的可行性。     

偶氮胂类稀土显色剂及其在光度分析中的应用

介绍了偶氮胂类稀土显色剂,着重论述了该类显色剂及其显色反应体系、相应光度分析方法的最大吸收波长、表观摩尔吸光系数、检测限、干扰情况以及相关应用。     

稀土钢水口堵塞的成因分析

本文全面分析了包钢稀土钢浇注时水口堵塞的成因根据国内外许多厂家的研究和生产实践，结合包钢的实际，提出了防止水口结瘤的措施。     

Modeling of Functional Construction Requirements for Constructability Analysis

Evaluating construction requirements should be an indispensable part of improving the constructability of a facility project. However, a number of existing function analysis approaches focus mainly on the final functions with respect to the finished facility. The construction industry still lacks methodologies to represent and evaluate the functional construction requirements for constructability analysis. This paper develops the concept of intermediate functions for representing the construction requirements from three perspectives, namely, function user, function provider, and the temporal and spatial relationships between the user and the provider. This is followed by the development of an in-progress product model to abstract the construction lifecycle of a facility product utilizing the concept of component state. Furthermore, the reference relationships among such perspectives as in-progress product, intermediate function, resource, and process are addressed. Based on these reference relationships, the bottleneck states for providing the intermediate functions can be detected. A case study of constructing the deck of a bridge using the balanced cantilever approach is presented to illustrate the utilization of this concept and representation.