公开(公告)号：US07879217B2

公开(公告)日：2011-02-01

申请号：US11565766

申请日：2006-12-01

Applicant: David Goad ,  Neal Nesselbeck ,  Jason Hahl

Inventor： David Goad ,  Neal Nesselbeck ,  Jason Hahl

IPC: C25D5/08

CPC classification number: C25D11/26 ,  C25D5/08 ,  C25D11/005 ,  C25D11/02 ,  H01G9/0032 ,  H01G9/052 ,  H01G9/07

Abstract: A method and apparatus for anodizing a porous valve metal pellet in a flowing liquid electrolyte is described. The apparatus comprises an insulative container comprised of a lower region, a central region including a cavity for holding the pellet, an upper region, and a continuous passageway extending through the lower, central, and upper regions. Lower and upper screens serving as lower and upper electrodes are disposed in the passageway in the lower and upper container regions, respectively. During anodizing, the electrolyte flows through the lower container region including the lower screen, the porous pellet and then the upper container region including the upper screen. The lower and upper screens are at an opposite electrical polarity as the pellet so that a dielectric oxide is formed on the exposed valve metal including interior portions of the pellet that are exposed to the flowing electrolyte.

Abstract translation: 描述了一种在流动的液体电解质中阳极氧化多孔阀金属颗粒的方法和装置。 该装置包括由下部区域构成的绝缘容器，包括用于保持颗粒的空腔的中心区域，上部区域和延伸穿过下部区域，中部区域和上部区域的连续通道。 用作下电极和上电极的下屏幕和​​上屏幕分别设置在下容器区域和上容器区域中的通道中。 在阳极氧化期间，电解液流过下容器区域，包括下筛网，多孔颗粒，然后包括上筛网的上容器区域。 下部和上部筛网与丸粒具有相反的电极性，使得在暴露的阀金属上形成电介质氧化物，包括暴露于流动的电解质的颗粒的内部。

公开(公告)号：US06965510B1

公开(公告)日：2005-11-15

申请号：US11010676

申请日：2004-12-13

Applicant: Yanming Liu ,  David Goad ,  Barry Muffoletto

Inventor： Yanming Liu ,  David Goad ,  Barry Muffoletto

IPC: H01G9/04 ,  H01G9/042 ,  H01G9/052

CPC classification number: H01G9/052 ,  Y10T29/417

Abstract: A sintering method for valve metal powders, such as tantalum, niobium, aluminum, titanium, and their alloys, is described. The valve metal powders are pressed into a pellet and sintered at a relatively high temperature, but for a relatively short time. The anodized valve metal structure is then useful as an anode in an electrolytic capacitor.

Abstract translation: 描述了诸如钽，铌，铝，钛及其合金的阀金属粉末的烧结方法。 将阀金属粉末压制成颗粒并在相对高的温度下烧结，但时间相对较短。 阳极氧化阀金属结构然后可用作电解电容器中的阳极。