ELECTROSTATIC SPRAY PROCESSES

摘要

Of the three methods discussed for spraying waterbornes electrostatically all have their advantages and disadvantages. The end user must decide as to which method is best suited for their application. Voltage blocks are the simplest and can be used with any type of fluid supply, but up front cash can sometimes be a factor in the mind of the decision maker. Isolated systems can be cheaper on most occasions, but can also take up a lot of valuable floor space. Isolated systems are also the least safe and may be impractical when your fluid supply is a remote paint kitchen. Although indirect charging may be the least efficient of the three methods discussed, it may be the most practical in some applications. For example, in automotive assembly plants where a large paint kitchen is involved or extremely fast color changes are necessary. Voltage blocks and isolated systems have been proven to provide higher transfer efficiencies.