锌电积的节电探讨

分析厂影响锌电积电能消耗的因素，提出了锌电积的节电对策与展望。     

电场作用下镁碳耐火材料在氧化性渣中的侵蚀行为

以高温氧化性炉渣为电解质,工业MgO-C砖为阴极,钼丝为阳极,研究外电场作用下耐火材料在CaO-SiO^2-FeO三元氧化性渣中的侵蚀行为。结果表明:在CaO-SiO2-FeO渣中,Si的还原电位约为-5.85V,Fe的还原电位约为-1.25V;当外加电压小于炉渣中离子还原电位时,电压趋使炉渣中离子(Fe^2+,Ca^2+)向阴极作定向移动,而SiO4^2-由于离子半径大,移动速度较慢,大部分滞留在阴极区域,使得阴极附近熔渣粘度不断增加,有效降低了炉渣渗透深度;当阴极电位低于炉渣中离子还原电位时,炉渣中Fe^2+和SiO4^2-将发生电化学还原,Fe和Si的析出促使熔渣组成发生变化,诱导高熔点相硅酸二钙沉积层的形成。高熔点沉积层有效阻断炉渣与耐火材料直接接触,使得熔渣在耐火材料中的渗透深度显著降低,提高了耐火材料抗渣侵能力。     

电沉积技术制备纳米SiO2/Ni复合镀层工艺的研究

利用电沉积方法制备了纳米SiO2／Ni复合镀层。研究了阴极电流密度、微粒浓度、pH值、搅拌方式和表面活性剂种类以及浓度等对镀层沉积速率的影响，为正确制定电镀工艺提供了依据。扫描电镜观察表明，纳米微粒的加入增加了镀层表面的不工整性。     

Annealing of electrolytic Cu-Bi,Ni-Bi,and Co-Bi alloys

The influence of annealing on the structure and some properties of electrodeposited supersaturated solid solutions of bismuth in copper, nickel, or cobalt was studied. The decomposition of supersaturated solid solutions begins with the formation of dissolved metal atom clusters in the lattice of base metals. During the process of annealing, the lattice of the clusters, originally coinciding with that of the base metals is transformed into the lattice of the second phase. The alloys formed in the process of annealing are solid solutions with precipitates of the second phase.     

电沉积Ni—W—P非晶态合金工艺的研究

研究了Ni—W—P非晶态合金的电沉积方法;讨论了电沉积液的温度、pH值和电流密度(DK)对镀层结构及成分的影响;同时对电沉积液的pH值和电流密度对镀层硬度及耐蚀性的影响进行了研究。     

Effect of Heat Treatment on Structure and Electrochemical Properties of Electro-deposited Ni-P Amorphous Alloy

ELECTROCHEMICAL deposition of Ni-P alloy iswidespread due to the unique physical,chemical andmechanical properties of these materials'11.And moreand more emphasize were laid on the study ofelectrochemical deposition of amorphous Ni-P alloybecause of its unique corrosion resistance.However,the detail reports about the relation of heat treatmenttime and the electrochemical behavior of amorphousNi-P alloy are rare.In this article,the influences of heattreatment time on the structure and t…     

浅谈RoDip-3系统的车身电泳涂装工艺

叙述了全旋反向浸渍输送技术即RoDip-3,从全新的理念上彻底解决了预处理、电泳车身输送过程中存在的问题。介绍RoDip-3系统的优点、其系统整车电泳线的工艺特点等。     

Well-defined meso- to macro-porous film of tin oxides formed by an anodization process

Anodically formed tin oxide typically displays a self-ordered porous structure with a large degree of cracking. In addition, its surface pores are frequently closed, especially in the case where the deposited tin film is anodized. Herein, we report a simple way of eliminating virtually all the inner cracks and ensuring that the surface pores are totally open, leading to well-defined one-dimensional anodic tin oxide. The current efficiency ratio of oxygen gas generation to tin oxide formation and the amount of charge allocated for pore initiation are suggested to be the key factors affecting the internal crack development and pore opening, respectively. Pulsed anodization proved to be quite an effective way to create a well-defined structure with few inner cracks and completely open pores.     

长周期电积锌工艺研究

针对高锗硫化锌精矿,重点开展了浸出过程杂质元素锗等入渣控制技术、硫酸锌溶液中杂质的深度净化工艺和长周期锌电积工艺的研究,电积锌析出的锌片厚度大于3 mm,为国内实现机械化剥锌技术奠定基础。     

Microstructure and characterization of Ni-Co/Al2O3 composite coatings by pulse reversal electrodeposit

Ni-Co/Al₂O₃ composite coatings were obtained by pulse reversal electrodeposit (PRC) and direct current electrodeposit (DC). The microstructure of the coatings was characterized by means of SEM, XRD and TEM. Hardness, wear resistance and macro residual stress of coatings were also investigated. The results showed that the microstructure and performance of the coatings were significantly affected by the electrodeposit methods and the Al₂O₃ particles content. The PRC composite coatings exhibited compact surface, high hardness and excellent wear resistance. The macro residual stress of PRC composite coatings was lower than that of DC ones. With the increasing of Al₂O₃ particles content, the hardness and wear resistance of the composite coatings increased.