HULLTEST赫尔槽测试中文版.doc

The Hull Cell (U.S. Patent # 2,149,344) is a miniature test cell designed to produce a plated deposit over a range of current densities. The deposit is dependent upon the condition of the plating bath (i.e. concentration of primary components, addition agents and impurities). The Hull Cell is a useful tool for varying chemical composition, determining covering power (the lowest current density at which a deposit is produced), measuring average cathode efficiency, average metal distribution or throwing power, and observing the effects of pH, temperature and decomposition products. A clear Lucite Hull Cell enables the operator to observe the plating on the back of the test panel to determine relative covering power at very low current densities. 赫尔（美国专利＃2149344）是一种小型测试电镀（添加剂和杂质）。赫尔Cell是一种有用的工具，为不同的化学组成，确定（最低电流密度产生的），测量平均电流效率，金属平均分配或分散能力，并观察pH值温度和分解产物的影响，。一个赫尔操作者观察背面，以确定在非常低的电流密度相对力。The Hull Cell was originally developed by the R. O. Hull Company, which later became the ROHCO Division of McGean-Rohco, and is now part of Atotech. The Hull Cell has become an integral part of plating operations everywhere. 赫尔槽最早由赫尔公司发明，该公司现在是安美特公司的一个部分，赫尔槽已经成为世界各地电镀操作的一个必须部分。 ADVANTAGES The Hull Cell enables an experienced operator to determine the following facts about a plating solution: 1. Approximate Bright Current Density Range. This is accomplished by comparing the bright plated areas on the panel with current densities given in a chart. If the bright or operable range is between 1-1/4” (3.2 cm) and 2-1/2 “(6.4 cm) from the left side of the panel, and the total current applied is 3 Amps,the corresponding respective current densities from a Hull Cell ruler or chart lie between 75 Amps/ft2 (7.6 Amps/dm2) and 25 Amps/ft2 (2.7 amps/dm2). Since these values represent extreme limits, it does not follow that either of these current densities can be used in a plating bath without obtaining a poor deposit. However, some intermediate current density such as 50 Amps/ft2 (5.4 Amps/dm2) should