锌酸盐

The factory specializes in alkaline zincate galvanized eight years, a wealth of experience.

本厂专业从事碱性锌酸盐镀锌8年，具有丰富的经验。

Polymerization reaction was thought to be the main reason of inhibition lowering in high concentration region of zincate.

认为Zn〓离子之间的聚合反应是导致锌酸盐在高含量时对锌的缓蚀作用减弱的主要原因。

Now, there are two types used in electroplating of zinc-nickel alloys. One is slight acidic choloride electrolyte system, another is alkaline zincate system.

现在常用的锌镍合金镀液主要有两种类型，一种是弱酸性氯化物镀液，另一种是碱性锌酸盐镀液。

The zinc-iron alloy electroplating technology in zincate solution by pulse current was investigated.

介绍了在锌酸盐溶液中脉冲电镀锌-铁合金工艺。

Thus the alkaline zincate continuous zinc plating technology for steel sheet was investigated, with the emphasis being placed on the effects of the bath composition and process conditions on the current efficiency. The throwing power of the plating solution was tested using Hull's cell 8 points thickness method, and the adhesion strength of the coating was examined by heating and shock cooling test.

为此，研究了用于薄钢板连续电镀的锌酸盐镀锌工艺，重点研究了镀液成分及工艺条件对电流效率的影响，用Hull槽8点法测试了镀液的均镀能力；用加热骤冷法测试了镀层的结合力，并对薄钢板连续电镀锌的前后处理工艺作了探讨。

Condensation product of amine and epoxychloropropane was used as additive in the traditional zincate based zinc electroplating process, and secondary brightener was added to improve deposit brightness as well.

传统锌酸盐镀锌工艺以有机胺和环氧氯丙烷的缩合物为添加剂，配合使用辅助光亮剂以提高镀层光亮度。

A salt of bromic acid .

锌酸盐一种含氢氧化锌的盐，例如氢氧化锌zn2

The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.

结果表明：锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹，具有较好的耐腐蚀性能；这种钝化膜表层与里层的组成不同，表层的组成为Cr2O3-Cr3-ZnO共混物；里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物；钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。

Zn-La alloys increase the overpotential ofhydrogen evolution, Tafel slope 〓 and polarization, decrease the corrosion current density, inhibitthe corrosion of zinc electrode in alkaline solution, decrease anode Tafel slope 〓, promotedischarge reaction of zinc electrode, have higher passivation current density, inhibit thepassivation of zinc electrode, avoid the oversaturation of zincate in electrolyte, greatly increase〓 diffusion coefficient, decrease Tafel slope 〓, polarization and the overpotential of deposition,inhibit the dendrites formation and improve the electrodepostion of Zn.

实验结果表明，Zn-La合金电极显著改善了锌电极的各项电化学性能：提高析氢过电位、析氢过程Tafel斜率〓和极化，减小腐蚀电流密度，抑制锌电极在碱液中的腐蚀；降低阳极Tafel斜率〓，促进了锌电极的放电反应；具有较高的维钝电流密度，抑制锌电极的钝化；有效避免了溶液中锌酸盐的过饱和现象：使〓的扩散系数明显增大：降低Zn沉积过程的Tafel斜率〓、极化和沉积过电位，明显抑制锌枝晶的生长，改善了锌的电沉积性能。

A process of alkaline hard chromium plating on aluminum alloy was presented,including oil removal,dipping in heavy metal solution,acid pickling,dipping in zinc solution,hard chromium plating.

1前言铝合金电镀硬铬，是利用强碱性的锌酸盐溶液在置换锌层上直接镀铬，其工艺成熟，操作简便、易行。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。