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    Cadmium electroplating process and bath therefor
    4.
    发明授权
    Cadmium electroplating process and bath therefor 失效
    镉电镀工艺及沐浴

    公开(公告)号：US3998707A

    公开(公告)日：1976-12-21

    申请号：US595347

    申请日：1975-07-14

    申请人： Jaan-Jiue Fong

    发明人： Jaan-Jiue Fong

    IPC分类号： C25D3/26

    CPC分类号： C25D3/26

    摘要： An aqueous cadmium electroplating bath containing cadmium ions, sulfuric and/or fluoboric free acid and a surfactant comprised of a combination of a cationic polyoxyalkylated amine compound and an anionic surfactant. Preferably, the bath also contains one or more brighteners.

    摘要翻译： 含有镉离子，硫酸和/或氟硼酸游离酸的水性镉电镀浴和由阳离子聚氧烷基化胺化合物和阴离子表面活性剂的组合组成的表面活性剂。 优选地，浴还含有一种或多种增白剂。

    Method for the electrolytic polishing of niobium structures
    5.
    发明授权
    Method for the electrolytic polishing of niobium structures 失效
    NIOBIUM结构的电解抛光方法

    公开(公告)号：US3850769A

    公开(公告)日：1974-11-26

    申请号：US28954372

    申请日：1972-09-15

    申请人： SIEMENS AG

    发明人： DIEPERS H ,  SCHMIDT O

    IPC分类号： C25D3/26 ,  C25F3/26 ,  C25F7/00 ,  C23B3/06 ,  B01K3/04

    CPC分类号： C25F7/00 ,  C25D3/26 ,  C25F3/26

    摘要： A hollow niobium body is partially immersed in an electrolyte, and is rotatably arranged about an axis of rotation extending through an opening therein in such a manner, that in any position of the body there exists above the electrolyte surface and all parts of the interior surface of the body situated above the electrolyte level a vapor space communicating with the external environment through the opening. As the body is rotated no part of the interior surface remains in the electrolyte continually. The cathode is disposed in the body in such a manner that the gases formed at the cathode escape into said vapor space without contacting the immersed surfaces. For polishing, constant electric voltage is applied between the body and the cathode and adjusted in such a manner that damped current oscillations occur which are superimposed on the electrolytic current. Not later than after the complete decay of the current oscillations, the voltage is turned off until the oxide layer built up during the current oscillations is dissolved. Subsequently, a constant voltage is again adjusted in such a manner that damped current oscillations occur, and the sequence of states with the voltage turned on and off is repeated several more times. During the application of the constant voltage and the subsequent dissolution of the oxide layer, the body is kept at rest and its rotation about the axis of rotation is continued after the oxide layer is dissolved and before the constant voltage is applied again.

    摘要翻译： 中空的铌体部分地浸没在电解质中，并且以这样一种方式围绕延伸穿过其中的开口的旋转轴线可旋转地布置：在电解质表面的上方存在的任何位置和内表面的所有部分 位于电解质上方的主体通过开口与外部环境连通的蒸汽空间。 当身体旋转时，内部表面的一部分不断地残留在电解质中。 阴极以这样的方式设置在主体中，使得在阴极处形成的气体不会接触浸入的表面而逃逸到所述蒸气空间中。 对于抛光，在体和阴极之间施加恒定的电压，并且以这样一种方式进行调节，使得产生叠加在电解电流上的阻尼电流振荡。 不迟于当前振荡完全衰减之后，电压被关闭，直到在当前振荡期间积聚的氧化物层被溶解。 随后，再次调整恒定电压，使得阻尼电流振荡发生，并且电压接通和断开的状态序列重复多次。 在施加恒定电压和随后的氧化物层溶解期间，保持静止，并且在氧化物层溶解之后并且再次施加恒定电压之前，其旋转轴在旋转轴线下继续。

    Electrolytic acidic solution for cadmiating of various parts
    6.
    发明授权
    Electrolytic acidic solution for cadmiating of various parts 失效
    电解酸溶液用于加工各种部件

    公开(公告)号：US3826722A

    公开(公告)日：1974-07-30

    申请号：US30878972

    申请日：1972-11-22

    申请人： CO DES COMPTEURS

    发明人： ACCARIES M ,  GIRARD M

    IPC分类号： C25D3/26 ,  C23B5/12 ,  C23B5/46

    CPC分类号： C25D3/26

    摘要： ELECTROLYTIC ACIDIC SOLUTION FOR CADMINATING OF VARIOUS PARTS CONTAINING, IN AN AQUEOUS DEMINERALISED CARRIER, A CADMIUM SALT, A FREE ACID, A BRIGHTENING AGENT SELECTED FROM THE CLASS CONSISTING OF A SEMITHIOCARBOZONE COMPOUND ATTACHED TO A THIOUREA GROUP AND A DITHIOCARBAMIC ACID CONDENSED WITH ALDEHYDE PHENOL, AND A WETTING AGENT INDIIFFERENTLY SELECTED AMOUNG NONIONIC, CATIONIC OR ANIONIC WETTING AGENTS.

    Ionic compositions containing hg(ii),zn(ii),cd(ii),ag(i),cu(ii),ni(ii) and/or co(ii),and a polymer of an ethylene imine
    8.
    发明授权
    Ionic compositions containing hg(ii),zn(ii),cd(ii),ag(i),cu(ii),ni(ii) and/or co(ii),and a polymer of an ethylene imine 失效
    含有HG（II），ZN（II），CD（II），AG（I），CU（II），NI（II）和/或CO（II）的离子组合物和乙烯基胺的聚合物

    公开(公告)号：US3565800A

    公开(公告)日：1971-02-23

    申请号：US3565800D

    申请日：1969-02-04

    申请人： VENTRON CORP

    发明人： WADE ROBERT C

    IPC分类号： C23C18/16 ,  C25D3/02 ,  D06Q1/04 ,  C07F15/06 ,  C23B5/30

    CPC分类号： C25D3/02 ,  C23C18/08 ,  C23C18/54 ,  C25D3/12 ,  C25D3/22 ,  C25D3/26 ,  C25D3/46 ,  D06Q1/04

    摘要： THE INVENTION PROVIDES AN IONIC COMPOSITION WHICH IS A SOLUTION OF AN OXIDE OR HYDROXIDE OF A METAL SELECTED FROM HG(II), ZN(II), AG(I), CU(II), NI(II), CO(II) AND MIXTURES THEREOF IN AN AQUEOUS SOLUTION OF A POLYMER OF ETHYLENE IMINE HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 600 AND 100,000 AND IN WHICH THE NITROGEN ATOMS ARE SEPARATED BY NOT MORE THAN TWO CARBON ATOMS AND THE PRIMARY, SECONDARY AND TERTIARY IMINE NITROGEN RATIO IS ABOUT 1 TO 2 TO 1 RESPECTIVELY. THE COMPOSITION IS SUFFICIENTLY IONIC SO THAT THE CONTAINED METAL, (1) CAN BE ELECTROPLATED THEREFROM ONTO OTHER METALS WITHOUT ADDING AN ALKALINE MATERIAL, OR (2) DISPLACED THEREFROM BY METALS HIGHER IN THE ELECTROMOTIVE SERIES. THE COMPOSITION ALSO MAY BE USED TO COAT VARIOUS ANIONIC SUBSTRATES, SUCH AS COTTON, GLASS, LEATHER, PAPER AND STARCH.