超高纯铜的制备方法和应用

简要介绍了超高纯铜(UHPC)的几种精炼方法，以及它在工业方面的应用。并对超高纯铜的研究开发趋势及应用前景进行了展望。     

大型预焙铝电解槽使用碳化硅砖与普通碳砖复合块的探讨

碳化硅砖和碳化硅砖与普通碳砖复合侧块，在上世纪末期我国铝电解槽上开始推广应用。使用后各厂家普遍发现碳化硅砖及碳化硅砖与普通碳块复合侧块均出现不同程度的断裂、上抬和脱落现象，该文对断裂、上抬和脱落原因进行了分析，并提出了改进措施。     

罐装食品用电镀锡板的耐蚀性及其试验方法

综述了影响罐装食品用电镀锡板耐蚀性能的因素及其试验方法。     

Effect of Iron on the Color of Barley and Other Cereal Porridges

ABSTRACT: Iron added as ferrous sulfate at 500 mg*kg⁻¹ to rice, oats, whole grain wheat, or proanthocyanidin-free barley porridge caused significant changes in the Hunter "L", "a", and "b" values but the visual appearance of these porridges remained satisfactory. Porridge made with normal barley flour fortified with 500 mg*kg⁻¹ of iron developed an unappealing gray color with ferrous sulfate, ferrous fumarate, or electrolytic iron, 3 salts differing in solubility. At 100 and 250 mg*kg⁻¹ of iron, the discoloration of normal barley porridge was less pronounced, but still objectionable. When fortified with 50 mg*kg⁻¹ of iron, normal barley porridge had a slight color change but was not noticeably gray. Thus barley-containing foods can be fortified with a soluble iron compound at the level of iron used in enriched flour and similar cereal-grain foods for the general population without developing an unattractive color.     

电解铜箔产业发展趋势

随着技术的进步,电解铜箔在厚度上迅速向薄、超薄方向发展,THE、RCC、CAC等特殊性能铜箔需求比例快速 增加,以锂离子电池为代表的新应用领域正在形成。     

铝电解电容器用橡皮塞中铁的测定

主要研究了用硫氰酸钾作显色剂，用分光光度法测定橡皮塞中铁含量的方法。并对国产和进口橡皮塞做了比较，为铝电解电容器质量水平的提高提供一条新思路。     

铝电解槽修槽废渣的特性分析及处理

分析了铝电解槽修槽废渣的产生量、基本构成及污染特性，重点介绍了铝电解槽修槽废渣的处理处置方法和综合利用途径。     

Electrolytic regeneration of bleach solution in the motion picture industry

Cyclic voltammetric and galvanostatic experiments have been carried out with both synthetic and commercial bleach solutions with a view to regenerating the same. Maximum efficiency could be achieved if the oxidation is carried out below an anodic potential of 0·80 V vs SCE. The data obtained in galvanostatic experiments with RCE confirm the results of the earlier technique.     

Preparation of ceramic coatings on inner surface of steel tubes using a combined technique of hot-dipping and plasma electrolytic oxidation

A new method for inner surface modification of steel tubes, named a combined technique of hot-dipping and plasma electrolytic oxidation (PEO) was proposed and demonstrated in this paper. In this work, metallurgically bonded ceramic coatings on inner surface of steel tubes were obtained using this method. In the combined process, aluminum coatings on steel were firstly prepared by the hot-dip process and then metallurgically bonded ceramic coatings were obtained on the aluminum coatings by PEO. The element distribution, phase composition and morphology of the aluminide layer and the ceramic coatings were characterized by SEM/EDX and XRD. The corrosion resistance of the ceramic coatings were also studied. The results show that, after hot-dip treatment, the coating layers consist of two layers, where Al, Fe_xAl _(1−x) were detected from external topcoat to the aluminide/steel substrate. Then after PEO process, uniform Al₂O₃ ceramic coatings have been deposited on inner surface of steel tubes. The ceramic coatings are mainly composed of -Al₂O₃ and γ-Al₂O₃ phase. The compound coatings show favorable corrosion resistance property. The investigations indicate that the combination of hot-dipping and plasma electrolytic oxidation proves a promising technique for inner surface modification of steel tubes for protective purposes.     

中亚国家电解铝厂总图布置的特点

通过对中亚国家电解铝厂的设计,并与国内同类项目进行比较,指出因社会、自然环境、人文环境和管理体制的不同,而致使总图设计方案有较大的差异,针对这些差异,提出了改进的措施及应注意的问题,可供国内同行参考。