钢铁热处理保护涂料研究

运用涂料保护原理配制涂料，比较分析了它们的保护效果、各组分的作用及加入量的影响。结果表明：以SiO2、Al2O3为主要原料的涂层有较好的保护效果；水玻璃的加入量在30％～35％时，涂料的保护效果和脱落性较好；加入熔剂可增强保护效果。     

涂层产生气泡的原因及控制方法

随着涂料工业的快速发展，涂料的品种、档次不断升级，人们对涂料的保护性、装饰性提出了越来越高的要求，因此，涂料的表面状态十分引人关注。气泡的存在，严重影响了涂膜的外观效果，往往会造成涂膜缩孔、针孔、疵点、鱼眼等弊病。所以涂层气泡问题，已不仅影响到涂膜的保护效果，而且也大大影响了涂膜的装饰效果。     

高温型热处理保护涂料的研究与应用

试验研究了6种西文的热处理保护涂料，比较分析了它们的保护效果及其产生的原因，结果表明，由H3BO3和化合物A组成的保护涂料在1100℃的热处理条件下仍然能保持良好的保护效果，是一种较理想的高温型热处理保护涂料，同时指出，活性成膜物和对粘态膜起“钉扎”作用的高熔点物是高温热处理保护涂料的必备成分。     

金属加热保护涂料保护原理及应用

金属加热保护涂料在金属热加工各个环节——铸、锻、热处理中不同程度获得了应用。本文从金属热处理中使用保护涂料的优点、保护涂料的分类、保护涂料的保护原理、保护涂料的一般要求及保护涂料的制备、施工工艺和涂料清理等方面进行详细的叙述。     

炼铁高炉系统防护涂装的改进

冶金高炉系统处于高温、粉尘、含硫的工业大气环境中，采用普通涂料基本无保护效果，选择寿命与维修周期相当的涂料涂装体系，才能达到预期效果。     

煤基聚苯胺防腐蚀性能的研究

采用加速浸泡和电化学测试方法，研究了煤基聚苯胺(CPANi)用于防腐蚀涂料中对碳钢的保护性能和效果。结果表明，煤基聚苯胺对涂料的性能没有太大的影响，用于涂料中对基体金属(碳钢)具有明显的阳极保护作用。     

ZGT-1涂料在熔铝铁坩埚上的应用

经试验和生产验证,ZGT-1坩锅涂料与氧化锌涂料相比,具有更好的工艺性能和保护效果,从而提高熔铝铁坩锅的使用寿命.     

几种涂料的防渗碳试验及选择应用

在产品加工中,渗碳件有些部位不需要渗碳,而需要采用涂料法对其进行了防渗碳。本文通过几种防渗碳涂料的防渗碳试验,对比几种涂料的防渗碳保护效果,根据试验结果确定合适的涂料应用于轴承套圈生产中。     

结422焊条的性能和配方组元的调整

结422焊条涂料渣系、性能与用途结422焊条是采用熔渣、气体联合保护的钛钙型渣系,其涂料重量系数不应低于 35%,否则保护效果不佳,机械性能表现在强度有上升和塑性下降趋向、冷弯明显地有合格和不合格之区别。重量系数太大焊接时渣浓运条困难,试验结果于表1。这类涂料焊条的机械性能和化学成份一般结果应是:     

热型连续铸造法包铸光学纤维

用热型连铸工艺实现了铝合金包铸光学纤维。试验比较了几种涂料对光纤的保护作用。认为糖粘结的石墨涂料涂层薄，具有疏松结构及良好的高温溃散性，保护效果良好。文中还对光纤的断裂原因进行了分析。     

Recent progress in corrosion protection of friction stir welded high-strength aluminum alloy joints

Friction stir welding (FSW) has been widely used in many industries, with which high-strength aluminum alloys can be well joined. However, the corrosion resistance of FSW high-strength Al alloy joints is relatively poor, which limits their industrial applications. The joints shall be protected against corrosion. In this review, therefore, the current status and development of corrosion protection for FSW high-strength Al alloy joints are presented. Particular emphasis has been given to different protection methods: lowering heat input, post-weld heat treatment, surface modification and spray coatings. Finally, opportunities are identified for further research and development in corrosion protection of FSW high-strength Al alloy joints.     

页岩气压裂返排液处理过程中的腐蚀防护技术

目的为页岩气压裂返排液处理过程中的腐蚀防护问题提供技术支持。方法首先分析压裂返排液的特点,在此基础上详细分析页岩气压裂返排液处理过程中的腐蚀防护技术,即合理选用材料、缓蚀剂技术、涂层技术和阴极保护技术,并分析各种技术的优缺点。结果页岩气压裂返排液处理过程中应多选用非金属材料;应尽量选择具有良好可溶性和水中分散性、毒性小的缓蚀剂;涂层往往需要与其他技术联合使用;阴极保护技术目前应用较少,应加大推广力度。结论对于具体的页岩气压裂返排液处理工程,需要根据腐蚀环境、成本及现场工人操作水平等进行综合评估,选取合适的防护方法。实际运用时,需在结合以往经验的同时评价筛选最新的技术,尽量采用最新技术,同时需要多种技术联合使用,才能确保设备安全。     

Application of Taguchi method for the characterization of calcareous deposits formed by pulse cathodic protection

In this study, the Taguchi method, a powerful tool to design optimization for quality, is used to find the optimal process parameters of pulse cathodic protection system for the calcareous deposits' formation. An orthogonal array, main effect and the signal‐to‐noise (S/N) ratio are employed to investigate the process parameters in order to achieve optimum final current density. Through this study also the main process parameters that affect the calcareous deposits' formation can be found. Experiments were carried out to confirm the effectiveness of this approach. From the results, chronoamperometric measurements have been used to evaluate the influence of pulse cathodic protection on decreasing the required cathodic current for protection and also decreasing the surface coverage. The morphology of the formed deposits has been evaluated through scanning electron microscopy (SEM) and chemical analysis of the formed deposits has been performed using X‐ray diffraction (XRD). It is found that the different environmental conditions, i.e., Ca²⁺ concentration, Mg²⁺ concentration, rotation speed, and temperature significantly affect the final required current density of the pulse cathodic protection. The optimum levels of parameters at different frequencies are also presented.     

大厚壁管扁焊枪的改进优化

随着国内二代半、三代核电站的规模化建造,窄间隙自动焊工艺被广泛应用于主回路管道焊接过程中。主管道焊接采用自动焊标准大焊炬,焊接过程中需要消耗大量的保护气体,且易受外界环境的影响,不便于进行量化控制,成本较高,这些因素很大程度上制约了自动焊技术的推广和普及。基于自动焊焊机自身特点,借鉴国外的成熟扁焊枪经验,分析焊枪结构,设计能够匹配自动焊焊机的焊枪结构,使得该扁焊枪可深入至焊缝表面进行近距离保护,大大减少所需保护气体流量,且不易受外界环境影响,保护效果更佳,便于量化控制。     

Einfluß von Schutzfremdströmen auf die Wirkung von Kühlwasserinhibitoren

The influence of imposed protection currents on the efficiency of inhibitors for cooling waters In case where the cathodic protection of a cooling system is not feasible a combination of cathodic protection and inhibition may be of advantage. The authors have studied the potential influence of a direct current on the efficiency of an inhibitor; during the experimental work they have used a current intensity corresponding to the maximum intensity of the protection current used in practice. Using potentiokinetic methods they have found that the number of inhibitors which may be used in such conditions is rather small. In the case of inhibitors based on nitrites or amines the protecting efficiency is rather reduced after some hundred hours' operation under direct current, and in some case even a corrosion stimulation has been experienced. Inhibitors based on chromates and anticorrosion oil emulsions exhibit improved electrochemical stability, though, in the case of oils emulsion breaking must be taken into account after relatively short durations of operation.     

油井高温污水介质中辅助阳极优选及结构设计

通过3个月的高温电化学保护实验，对两种棒状阳极的电流输出性能进行了评价和优选，找出了适宜高温油井套管阴极保护技术的辅助阳极，针对井下工矿条件，对该阳极进行了适宜的结构设计。     

An electrochemical study of zinc-containing epoxy coatings on mild steel

A comparative electrochemical study has been carried out between conventional zinc-rich and novel zinc-containing paints. To study the cathodic protection performance of these coatings an assessment method based on a galvanic couple was employed. Current and potential were monitored with immersion time in 3.5% NaCl. The zinc-rich paint offered cathodic protection for about 7 days compared with 40 days for the new paint. However, the steel coupled with the zinc-rich remained corrosion free for a further period. This was probably due to the inhibitive effect of zinc salts deposited at the cathode. Thereafter a reversal in polarity was obtained once rust formed. Thus it is concluded that established cathodic protection criteria cannot be solely used to assess the protection properties of zinc-containing paints. Electrochemical impedance spectroscopy was also used to study the state of the coating with time. Diffusion parameters indicated that the new paints were covered with a lesser amount of corrosion products.     

铝合金型材深加工过程中的表面保护

介绍常用铝合金型材深加工的传统模具以及加工过程中对工件表面的保护方法,分析了传统深加工模式的缺点,阐述了现行铝合金型材深加工过程中对工件表面保护的先进方法.     

巴基斯坦成品油管线工程储罐罐底外壁阴极保护

网状阳极已在储罐罐底的阴极保护系统中大量使用，保护效果明显，并得到很多应用单位的认可。本文主要结合巴基斯坦国家重点工程——成品油管线工程（White Oil Pipeline Project）具体情况，对该项目储罐罐底外壁阴极保护的设计、计算、实施情况等进行了详细介绍，并对实际保护效果和存在问题进行了分析讨论。     

脉冲电流阴极保护技术在油井套管上的应用

油井套管外腐蚀是套管失效的最主要形式,严重制约了油田的作业和开发。阴极保护技术已广泛应用于油井套管系统的防腐蚀保护。实践证明,该技术是目前使用最广泛、最有效的油井套管防腐蚀技术。然而,基于脉冲电流的阴极保护技术在油井套管中还没有相关应用。理论研究和模拟实验证明,脉冲电流阴极保护技术具有电流分布更均匀,总电流需求更低,保护深度更深,耗能更低等诸多优点。通过介绍脉冲电流阴极保护技术的历史、研究进展、应用条件等,对油井套管阴极保护技术进行了综述;探讨了油井套管脉冲电流阴极保护基本参数的影响规律;总结了对该技术保护效果的评价,并对其保护效果进行了展望。