高电流密度电解清洗带钢技术的分析研究

为了建设国内第1条高速高效的带钢电解清洗机组，对电解清洗机理、高电流密度电解清洗技术进行了研究探讨；分析了各种类型高密度电解清洗装置的优缺点及实例，为国内新建或同类机组改造选型提供了参考。     

冷轧带钢的现代电解清洗工艺

阐述冷轧带钢电解清洗工艺的基本原理及其发展过程,介绍各种电解清洗工艺设备的基本结构,分析其优缺点和适用范围,为新建带钢清洗机组或清洗装置的设备选型提供参考。     

带钢连退线清洗段的设计与研究

清洗是钢带连续退火线重要的工序,清洗段对提高产品的表面质量具有重要的意义。本文介绍了连退线清洗段的主要设备组成及其特点,分析了影响清洗效果的主要因素:清洗液的浓度和温度、刷辊的控制、电解清洗的电流密度,并阐述了如何控制这些因素来达到较好的清洗效果。     

含硅脱脂剂在电解清洗带钢中的应用研究

介绍了含硅脱脂剂的研制应用情况,及其在电解清洗带钢中的适用工艺、条件、清洗特点和影响清洗的因素,并就影响因素之间的相互关系进行了讨论。得出含硅脱脂剂适用于电解清洗带钢和罩式炉退火工艺,其电解清洗的适宜温度为60～90℃,电流密度为10～30A/dm2。     

冷轧连退机组电解清洗段漏液原因分析及对策

针对首钢京唐1 420 mm连退机组高速运行时清洗段电解清洗槽漏液的问题,分析其产生原因是由于挤干辊与槽体间不能完全密封,带钢在高速运行时会将碱液带起并产生泡沫,从挤干辊和槽体间溢出而造成漏液.为此,从电解清洗槽液位控制和挤干辊与电解清洗槽连接部位结构改进两个方面制定了相应措施,通过电解清洗槽内碱液液位控制优化、消泡剂...     

可控电解珩磨加工电流控制技术研究

概括了可控电解珩磨加工的一般原理和方法，设计了一套电解电流闭环控制系统，详细介绍了系统的硬件和软件结构，给出一种微变凸轮的可控电解珩磨加工实验结果。     

整体叶盘电解加工工艺研究

针对某发动机整体叶盘,开展了电解加工工艺研究,在整体叶盘电解加工设备上进行了大量的工艺试验,对其加工工艺进行了摸索.通过对试件加工,初步掌握了整体叶盘叶型电解加工的工艺规律,确定了加工工艺参数,为整体叶盘电解加工的工程化应用打下基础.     

可控电解珩磨加工电流控制技术研究

概括了可控电解珩磨加工的一般原理和方法，设计了一套电解电流闭环控制系统，详细介绍了系统的硬件和软件结构，给出一种微变凸轮的可控电解珩磨加工实验结果。     

冷轧带钢的电解碱洗工艺及设备

比较系统地论述了冷轧带钢电解碱洗的机理、设备结构型式、生产工艺以及各种因素对电解碱洗效果的影响。     

民机机匣电解加工设备的研制

国内外广泛采用电解加工工艺进行航空发动机机匣零件的加工。电解加工设备由于自身的特殊性,对密封和防护有着特殊的要求。民机机匣电解加工设备针对民用航空发动机机匣的电解加工而开发。在设备研制过程中,解决了机床工作时X轴加工反力较大,滑枕头及转台(C轴)的密封困难等难题,通过工艺试件的电解加工试验,验证了该设备研制的合理性。     

电解脱脂机组电解涂硅槽的设计研究

为了解决罩式退火时带钢的粘结问题,本文结合某罩式退火工程的建设,介绍了其脱脂机组工艺设备布置,以及采用电解涂硅槽的必要性。同时,阐述了电解涂硅的机理、电解涂硅的工艺参数及电解涂硅槽的结构设计。采用电解涂硅槽后,带钢粘结发生率大幅下降,降低了生产成本。     

PRETREATMENT FOR METALLIZATION OF PZT CERAMIC SURFACES

This paper describes the pretreatment process for metal[ization of PZT ceramics surfaces by electrolytic Ni plating which includes cleaning, roughening, sensitization and activation. The experimental procedure, results and influeneing factors for these processes are investigated and discussed.     

Surface pretreatment of austenitic stainless steel and copper by chemical, plasma electrolytic or CO2 cryoblasting techniques for sol-gel coating

The surface pretreatments of the austenitic stainless steel and copper surfaces for the sol-gel coating were carried out by chemical, plasma electrolytic or CO₂ cryoblasting techniques. With the austenitic stainless steel the smoothest surfaces were obtained with plasma electrolytic cleaning, after which the measured contact angles of water were clearly decreased revealing improved hydrophilicity. As well with the copper samples the smooth surface and improved hydrophilicity was obtained with the plasma electrolytic cleaning, but oxide layer formed to the copper surface immediately after the treatment. CO₂ cryoblasting provided rough surface with wetting properties close to the original surface both for austenitic stainless steel and copper surfaces. CO₂ cryoblasting provided best appearance for the copper surface because no oxidation happened with that treatment. XPS and SIMS studies showed that with the plasma electrolytic treatment the surface layer of the austenitic stainless steel enriched of chromium and the oxide layer formed on the surface was less than 10 nm thick. With the chemical cleaning and CO₂ cryoblasting, the chromium enrichment to the stainless steel surface was less. However XPS and SIMS studies showed that chemical treatment provided thinner oxide layer to copper surface than plasma electrolytic treatment.     

超声波清洗去除冷轧带钢表面油脂技术

冷轧带钢的表面质量是影响其性能的关键因素之一,目前常采用化学清洗+电解清洗+物理漂洗的清洗方式去除带钢表面的油脂。以某冷轧厂待脱脂的带钢样品为研究对象,借鉴现有脱脂工艺,定性并定量研究了超声波清洗脱脂的效果,并在此基础上开展了工业规模中试研究。试验结果表明,超声波清洗1 s,带钢表面清洁度可达85%;超声波清洗2~3 s,带钢表面清洁度可达93%以上;结合刷洗工艺,超声波清洗1~2 s,带钢表面即可达到良好的脱脂效果。工业应用表明,超声波脱脂效率高且清洗效果好,实施便捷且运行能耗低,具有良好的应用前景。     

Surface characteristics of structural steel processed using electro-plasma techniques

Electro-plasma cleaning and deposition (EPCAD) is a recently developed electrolytic process for cleaning mill scale and other impurities from newly manufactured steel. The process offers reduced costs, improved coating adhesion, and increased corrosion resistance as potential benefits. Test samples of A-36 mild steel were cleaned using the EPCAD process and an industrial wheelabrator unit. Surface profile measurements and scanning electron microscopy were performed on both sets of samples to investigate the respective surface morphologies. Cleaned samples were then coated with an inorganic ceramic-based zinc primer. Tensile adhesion tests were performed and showed comparable adhesion properties for the EPCAD-cleaned and shot-blasted samples. The favorable adhesion properties are attributed to the microroughness and unique surface morphology produced by the EPCAD process.     

气箱脉冲袋除尘器在铝电解含氟烟气干法净化中的应用

本文介绍了气箱脉冲袋除尘器在铝电解烟气净化工程上的成功应用。实践结果表明。在保证净化效果的前提下，采用改进型气箱脉冲袋除尘器作为净化设备．可使其一次投资、能耗、年维修费与其他型式布袋除尘器相比均有所降低。为铝电解烟气净化工程扩大了除尘器的选择范围。     

超声清洗在网带炉中的应用

金属零件在渗碳前需要表面干净,但现有网带炉的前清洗效果不佳。为改善网带炉前清洗的去油去污效果,在网带炉前清洗安装超声波清洗装置。根据前清洗的尺寸结构和超声清洗的特点,设计了超声清洗的功率、频率、安装方式。结果证明,增加超声清洗装置后,零件清洗效果得到改善,零件热处理后渗层厚度更加均匀。