Preparation of acids and chemicals before and inside the cleanroom requires precise temperature control. To achieve this, calls for heat exchangers that can handle aggressive media.
Industrial etching is the subtractive manufacturing process of using baths of temperature-regulated etching chemicals to remove material to create an object with the desired shape. It is mostly used on metals, although other materials are increasingly important and was first developed from armour-decorating and printing etching processes developed during the Renaissance as alternatives to engraving on metal.
The process essentially involves bathing the cutting areas in a corrosive chemical known as an etchant, which reacts with the material in the area to be cut and causes the solid material to be dissolved; inert substances known as maskants are used to etch specific areas of the material. Today one of the most common applications for etching is in the semiconductor fabs when preparing acids and chemicals before and inside the cleanroom.
Alfa Laval’s product range includes Diabon® plate heat exchangers. Equipped with graphite plates they can handle the toughest media.
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