冷轧连续式酸洗机组开卷机卷筒结构改进

通过对冷轧连续式酸洗机组开卷机卷筒结构及故障原因的分析，提出了卷筒扇形板与棱锥体之间采用双燕尾滑键联接，以及增加扇形板钩头厚度、增大过渡圆角半径和更换扇形板材质等改进措施，取得了预期的效果。     

紊流酸槽入酸口位置及流量分配优化研究

紊流酸洗是一种能够有效降低带钢酸洗成本和提高效率的先进工艺与技术,在中国带钢酸洗行业正受到越来广泛的关注,但由于对该项新兴技术的原理尚缺乏深入认识,中国目前还只能靠模仿国外的紊流酸槽进行设计。为克服这种现状,采用现代计算流体力学（CFD）理论与方法,建立了紊流酸洗数值模拟技术,以某工程实际紊流酸洗系统为对象,以带钢表面紊流强度为评价指标,提出了在酸槽侧壁增加进酸口的优化设计方案。研究表明：该种新的进酸口位置及流量分配优化设计方案,对改善带钢表面紊流强度分布效果显著,并已成功应用于紊流酸洗工程,取得了良好的社会与经济效益。     

中厚板特殊钢热处理线的新发展和新技术

从加热、冷却、矫直、酸洗、电控这几个方面分析和总结了进几年国内外中厚板特殊钢连续热处理线的新发展和新技术.加热方面,通过采用耐火石棉纤维炉辊替换耐热合金炉辊有效解决了钢板的表面压入缺陷问题,采用高速脉冲烧嘴和新型复合脉冲燃烧控制技术,使加热更均匀和更节能;采用国内研究开发的辊式淬火机及空冷室设备和技术,使冷却的钢板厚度范围大,极限规格薄,钢板平直度高;矫直方面,通过采用全液压动态凸度补偿系统及机架高强度和高刚度,并配置合理的辊系,使矫直具备冷、热矫直功能和矫直的厚度范围大;通过采用立式酸洗和新的酸洗工艺,使设备占地空间小、酸洗质量好;电控系统方面,通过先进齐全的仪表配置、完善的4级控制系统、加热、淬火、矫直、酸洗模型在线应用等,使生产过程高产、优质、稳定和自动化.对中厚板热处理线的建设和研究具有一定的参考意义.     

Electrolytic plasma technology: Science and engineering—An overview

This paper overviews our present understanding of the fundamentals behind Electrolytic Plasma Technology (EPT) in view of the experimental results and theoretical predictions. EPT is an effective surface engineering tool that combines cleaning and coating of metals. During EPT processing, DC voltage is applied to the electrodes in the aqueous electrolyte, which produces plasma at the surface of the work piece. Thermal, chemical, electrical and mechanical effects imparted by EPT to the work piece create unique surface characteristics. The mechanism and metallurgical aspects of the effects are discussed in detail. EPT is under development for industrial applications in specific processes and is being explored for other potential commercial applications. Both of the aspects are presented. The experimental and industrial tests to date demonstrate that EPT is an emerging surface engineering technique with economical commercial applications in the field of surface engineering.     

浦钢不锈钢宽厚板酸洗工艺研究和技术改造

研究不锈钢宽厚板连续喷淋酸洗工艺线中酸循环运行系统技术参数及关键技术参数与不锈钢酸洗产量和质量的关系 ,按钢板 1 .2m/min的运行处理速度 ,研究循环酸液纯净的处理方式。根据研究结果 ,提出喷淋酸洗线的技术改造方案 ,目标使不锈钢酸洗产能在现有基础上持续、稳定地增加 5 0 %～ 60 %。     

一种含醇的新型酸洗缓蚀剂

采用电化学方法、失重法研究和评价了一种新型含醇盐酸酸洗缓蚀剂TL-3，并与同类型缓蚀剂进行比较。结果表明，缓蚀剂TL-3在较短酸洗时间内，较少的添加量即可达到最佳酸洗效果，可显著减少盐酸酸洗后热轧钢板表面残留氯离子的量，显著提高热轧酸洗板耐大气腐蚀性能，是一种性能优良的盐酸酸洗缓蚀剂。还探讨了缓蚀剂TL-3降低钢板试样残氯量的作用机制。     

Mechanism of single and multiple step pickling of 304 stainless steel in acid electrolytes

Pickling of oxidised 304 stainless steel in single or multiple electrolytes was investigated based on weight loss and corrosion potential measurements. A smooth surface finish was obtained after an extended pickling in HCl, but some external oxide scales remained. On pickling in HF, the external oxide scales were fully removed, but internal oxide scales remained, and intergranular corrosion took place. Multi-step pickling in successive HCl and HF electrolytes allowed achieving a smooth surface finish free of any oxide scales. The sequence and duration of pickling steps in such multi-step pickling greatly influenced the final surface finish. Corrosion potential of oxidised stainless steel in both electrolytes could differ, and that difference leaded to a uniform pickling of stainless steel in HCl and a localised pickling in HF.     

304和316铸件酸洗和钝化问题的探讨

介绍３０４和３１６等型号不锈钢铸件在表面酸洗和钝化过程中，所碰到的一些问题及解决的方法。     

Synergism in copper corrosion inhibition by sodium dodecylbenzenesulphonate and 2-mercaptobenzoimidazole

The inhibition effects of sodium dodecylbenzenesulphonate (SDBS) and 2-mercaptobenzoimidazole (2-MBI) on the corrosion of copper in sulphuric acid solution have been studied using electrochemical impedance spectroscopy (EIS) and Tafel polarisation measurements. For 2-MBI, a monotonic increase in inhibition efficiency is observed as a function of concentration. Upon mixing 2-MBI and SDBS, concentration regions showing synergistic inhibition behaviour are identified and it is concluded that electrostatic interactions between adsorbate ions are likely responsible for both phenomena. Different adsorption isotherms were tested for relevance in describing the adsorption behaviour of both 2-MBI and SDBS. 2-MBI obeys the Langmuir isotherm and SDBS adsorption is described successfully by the Temkin isotherm.     

S31803 双相不锈钢酸洗工艺的试验

S31803奥氏体-铁素体双相不锈钢(%:0.03C、22.05Cr、5.23Ni、3.10Mo、0.16N)合金含量高,氧化层中所含的合金元素多,氧化物结构复杂,不易酸洗.通过正交试验得出H2SO4 220 g/L,NaCl 30g/L,添加剂10 g/L,在60℃平均酸洗时间57.2 min,使酸洗后的钢板表面色泽均匀,酸洗合格率达100%.