Complete analysis of ionic staining of glasses by transition-metal compounds

The data on the ionic staining of glasses are analyzed from the standpoint of ligand field theory. New information is added to the existing information on the staining of glasses by transition-metal compounds. Data on the structure of glass-forming melts and the conditions for the formation of staining complexes are presented. A possible mechanism for amber staining in glasses is discussed. __________ Translated from Steklo i Keramika, No. 5, pp. 7–12, May, 2007.     

丙酮酸乙酯合成新工艺

以叔丁基过氧化氢(TBHP)为氧化剂,四丁基溴化铵(TBAB)为相转移催化剂,有效地将乳酸乙酯氧化合成丙酮酸乙酯,产品纯度达98% 以上.该反应操作简单,无污染, 为丙酮酸乙酯合成开辟了新方向.     

钢筋混凝土倒虹吸管纵向裂缝原因分析及处理措施

钢筋混凝土倒虹吸管出现纵向裂缝的现象是十分普遍的,据对10处工程的调查(最大管径2m、水头70m,最小管径0.6m、水头20m),均有程度不同的裂缝(开裂管节占管节总数的45%～95%)。值得注意的是,除大型倒虹吸管的纵裂事故及时引起人们的重视并作处理外,中小型倒虹吸管所开纵裂一般未引起人们的重视,甚至不认为是裂缝,因此造成极大的隐患。文章针对钢筋混凝土倒虹吸管普遍出现纵向裂缝的原因进行了分析,并指出在设计、施工方面应注意的要点及处理方式。     

PDC钻头在胜利油田深井钻井中的应用

胜利油田为提高深井钻井速度，试验应用了PDC钻头，结果表明，深井钻井应用PDC钻头可大幅度提高机械钻速，缩短建井周期，降低钻井成本，经济效益明显。通过大量的现场试验，扩大了PDC钻头在胜利油田的使用范围，并取得很好的效果，初步形成了PDC钻头推广应用区域模式。详细介绍了胜利油田不适用PDC钻头钻进的地层岩性，给出了钻头选型及钻井参数选择原则，并对应用效果进行了分析。     

油田企业优化备件管理的设想

针对油田企业装备设施系统备件管理的庞杂性，提出了4种优化备件管理的设想。在备件分类管理、库存管理模式及备件供应环节和管理流程上，结合计算机辅助技术，形成优化管理模式。提出的优化思路可以运用于石油石化企业的备件管理中，改进业务流程，促进物流管理一体化。     

Reconstruction of vertical continuous lab casters–An optimum solution for astering the production of flat-rolled products for critical applications

Existing vertical continuous casters have outlived their normal service life of 30–35 yrs, and they are physically worn out and technically obsolete. This limits the possibilities for using them to cast metal that goes into products intended for critical applications (thick plates, ship plate, skelp for gas and oil pipelines, etc.). However, there are several technical and technogical innovations that could be used to rebuild these units. One example is the reconstruction of the vertical caster used by Severstal’ to cast slabs in its electric steelmaking shop. Severstal’ itself, the Korad Corporation, and the company Ormeto-YuUMZ were the main organizations involved in the design, rebuilding, and startup of the modernized caster. __________ Translated from Metallurg, No. 5, p. 60–62, May, 2006.     

Structure and processes of formation of oxide electrocatalysts

Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 10, pp. 27–29, October, 1991.     

Automated design system for an axial fan

Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 3, pp. 8–9, March, 1992.