竖井的玻璃钢复合材料井简装备

通过对竖井井筒装备的腐蚀情况和电弧喷涂长效防腐技术不足的了解，建议采用玻璃钢复合材料井筒装备来解决井筒装备的腐蚀问题。     

关塘铁矿斜井井筒施工中流沙及涌水的防治

关塘铁矿提升斜井原预计涌水量小于34m^3／h，斜井要穿越较厚的第四系冲积层和流沙层。在井筒掘进过程中，关塘铁矿遭遇了几次特大涌水和流沙等危害，通过采用注浆堵涌及挤压注浆固沙相结合的方案，解决了上部井筒渗水、淋水现象，井筒最终出水量小于10m^3／h，保证了井筒安全穿越软土含水层和流沙层的掘进施工．     

竖井的玻璃钢复合材料井筒装备

通过对竖井井筒装备的腐蚀情况和电弧喷涂长效防腐技术不足的了解 ,建议采用玻璃钢复合材料井筒装备来解决井筒装备的腐蚀问题。     

热浸镀锌在开滦煤矿井筒装备首次应用

国内第一个煤矿井筒装备使用热浸镀锌防腐技术,即已在开滦矿务局钱家营矿主,副井装备一井下的罐道梁、罐道、罐笼帮、提升钢丝绳及井上的提升井架罐道首次应用。这项出西德德马克(DEMAG)公司引进的,当今世界先进的钢铁防腐技术一热浸镀锌技术的应用,必将大大延长煤矿井筒装备的使用寿命和服务年限,解决了采矿业的一大难题一井筒装备严重腐蚀的问题。     

防腐抗渗韧性井壁结构设计及其在新城金矿新主井施工中的应用

在深竖井设计施工过程中，高聚能、高温、高水压、破碎地层围岩等因素严重影响井壁稳定性，合理的井壁结构成为井筒安全施工的关键。针对新城金矿深竖井存在围岩破碎、高地应力、高承压水、高硫酸根离子和氯离子地下水的围岩条件，结合C40高性能防腐抗渗韧性新型混凝土及锚网梁支护方式，对1 300 m以深井筒筒身的井壁结构进行优化调整，设计了2种韧性抗渗、抗腐蚀的新型井壁结构，并进行了现场应用。结果表明：防腐抗渗韧性井壁结构施工后，井筒深部施工现场未有新的岩爆情况发生，井壁抗冲击性较好，现场涌水量明显减少。研究成果为新城金矿新主井深部支护施工提供了技术支撑，也可为类似条件的深竖井开挖深部井筒围岩支护提供技术指导与借鉴。     

鞍钢酸洗车间的腐蚀及防护

通过多年来的防腐设计实践，深入分析防腐原因，并就鞍钢酸洗车间的防腐处理提出了切实可行的方案。     

在北风井游泥层中采用灌注桩法设计探讨

铁矿北风井表土施工中遇到井筒开挖下沉、龙门架编斜造成井筒无法下掘，提出采用灌注桩法，并对桩结构进行设计验算，为北风井方案提供参考。     

冶炼厂钢筋混凝土烟囱改造方案选定和实施

随着冶炼厂环境集烟系统的升级改造,烟囱的使用环境从干烟气变为湿烟气,原有钢筋混凝土烟囱的防腐设计无法满足改造后的烟气条件,必须对原钢筋混凝土烟囱内壁进行防腐改造。本文从工期、施工可靠性和经济性等方面比较了3个方案,并确定最终施工方案采用固斯特PSM聚合物硅酸盐防腐蚀体系。根据施工方案的具体实施情况,提出了相应的调整方案。     

垮塌井筒修复技术与实践

阿舍勒铜矿风井垮塌,为重新利用此井筒,将其改造为充填井,制定了井筒修复技术方案。经过6个月完成修复工作。从修复的效果来看,取得了良好的修复效果。此井筒修复技术为类似垮塌井筒的修复的积累了施工经验。     

井简十字中心线标定的设计与实施

井筒十字中心线是矿井工业广场总平面设计的基础.介绍了井筒十字中心线标定原理,结合东刘家矿区工程实际,简述了井筒十字中心线标定方案及施测过程,并对实测精度和误差进行了评定分析.东刘家矿区井筒十字中心线标定,确保了矿井工业广场总平面设计及施工的顺利进行.     

Galvanic Corrosion of Carbon and Steel in Aggressive Environments

The demand for the use of carbon-fiber-reinforced plastics (CFRP) in rehabilitation of deteriorating infrastructure is increasing worldwide. The design characteristics of reinforced concrete or steel members can be enhanced significantly by epoxy bonding CFRP laminates to the critically stressed tension areas. There is, however, a concern regarding possible galvanic corrosion when carbon and steel are bonded together. This paper presents the result of a study on the galvanic corrosion between CFRP laminates and steel. A total of 38 specimens made of steel and carbon fibers were prepared and tested. Two simulated aggressive environments and three different amounts of epoxy coating were used in addition to samples with no coating at all. Furthermore, the effect of the sizing agent on the galvanic corrosion rate was investigated, and three different solvents were used to remove the sizing agents from the surface of the carbon fibers. Potentiodynamic polarization and galvanic corrosion tests were conducted. The results of the experiments showed the existence of galvanic corrosion; however, the rate of such corrosion could be decreased significantly by epoxy coating.     

含Er镁合金的研究进展

综述了稀土元素Er在镁合金中的作用及对镁合金显微组织、力学性能和耐蚀性能影响的研究进展.Er可以净化镁合金熔体并对熔体具有良好的阻燃作用;稀土Er可以细化合金的晶粒组织,影响析出相的形态、数量、大小和分布,提高了镁合金的力学性能和耐腐蚀性能.     

宝钢热风炉拱顶钢板防腐蚀的探讨

由于热风炉在燃烧过程中产生大量的NO、等气体，在一定条件下这种含有NO、的高温气体通过炉内耐火材料缝隙对炉壳钢板产生严重的腐蚀，会带来严重的安全隐患，影响正常生产。为防止炉壳钢板的腐蚀，设计中选用耐酸涂料对钢板进行防护。通过对不同耐酸涂料进行对比试验．选择出适合热风炉使用条件的合理的耐酸涂料。     

Modelling Corrosion Behavior of Friction Stir Processed Aluminium Alloy 5083 Using Polynomial: Radial Basis Function

Aluminium alloy 5083, widely used in marine applications, undergoes accelerated corrosion in sea water due to the aggressive reaction of chloride ions with the secondary phase particles and other intermetallics present in the alloy matrix. The corrosion rate of the alloy is also influenced by the temperature difference between the alloy and its environment. Friction stir processing (FSP) is a recent solid state processing technique for improving the surface properties of metals and alloys. In this study, an attempt has been made to explore the possibility of improving the corrosion resistance of AA5083 by FSP. FSP trials were performed by varying the tool rotation speed, tool traverse speed and shoulder diameter of the tool, as per face centered central composite design. The corrosion potential and the corrosion rate of friction stir processed AA5083 was studied using potentiodynamic polarization studies, at three different temperatures. Mathematical models based on polynomial—radial basis function were developed and used to study the effect of process parameters on the corrosion potential and the corrosion rate of friction stir processed AA5083. FSP resulted in refinement of the grain structure, dispersion and partial dissolution of secondary phase particles in the matrix, which increased the corrosion resistance of the alloy.     

大型高炉煤气干式布袋除尘技术研究

对高炉煤气干式布袋除尘技术的发展现状进行了总结,阐明了干式布袋除尘技术的工艺流程及低压脉冲喷吹干式布袋除尘技术的原理,重点阐述了研究开发的高炉煤气温度控制、煤气含尘量在线监测、煤气管道系统防腐及除尘灰浓相气力输送等关键技术.     

硫酸塔槽用国产KP1胶泥瓷砖衬里防腐的经验

叙述了贵溪冶炼厂二期扩建 ,硫酸塔槽采用国产 KP1胶泥砌筑瓷砖衬里防腐和施工经验。实践表明 ,国产 KP1胶泥砌筑瓷砖衬里的性能能够满足生产要求     

Investigation of corrosion processes in aluminum production and development of new methods of protection of metals

In electrolytic aluminum production, anode rods, industrial tools, and gas purification equipment corrode intensely. A high corrosion rate of the tools and equipment in cryolite-alumina melts is found. To decrease the corrosion destruction of operating equipment and anode rods made from ferrous metals, it is suggested to deposit composite chromium coatings. Purification of electrolytic gases from sulfur dioxide is possible by the acidic scheme with obtainment of sulfurous acid. However, this is accompanied by intense corrosion of equipment made from ferrous metals. The possibility of applying corrosion inhibitors, specifically oxazolidines, for protection of gas purification equipment made from steel CT3 that exists in aluminum plants is considered.     

Unpainted atmospherically stable steel bridges

Foreign data are reviewed regarding the corrosion of rolled sheet made of 32 different low-carbon steels in the atmosphere. Sheet and structures with an experimental span structure are made from 14X??H???? steel. After 20 years, a protective film of corrosion products is formed, and corrosion practically stops. The thickness of the rolled steel is reduced by less than 0.1 mm.     

沸腾炉壳体腐蚀与外保温的探讨

介绍了沸腾炉炉壳腐蚀现象以及对工厂生产带来的危害，分析硫酸在炉壳上结露造成腐蚀的原因，通过计算证明沸腾炉炉壳工作温度低于硫酸露点温度．并提出了采用外保温防止结露的措施来解决炉壳腐蚀问题。     

Investigation into the corrosion rate and features of the samples made of nanostructured aluminum alloy in the H<Subscript>2</Subscript>S-containing medium

The corrosion rate was determined and corrosion damage features of the samples made of AK4-1 aluminum alloy were investigated in the NACE solution containing hydrogen sulfide (H₂S). The alloy was investigated in the ultra-fine-grain state compared with the coarse-grain state formed after standard treatment T6 (quenching + ageing). The alloy was nanostructured by equichannel angular pressing (ECAP). It is shown that the alloy corrosion rate after ECAP is higher than after T6 treatment by a factor of 1.9. Herewith, the total corrosion takes place in alloy after ECAP, while pitting corrosion is also observed after T6 treatment in addition to the total corrosion. The corrosion effect strongly affects surface-roughness parameters of the samples made of AK4-1 alloy after ECAP compared with the samples after T6 treatment.