Letter 2056

Acid cleaning of refractory metals-need bath equipment

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Small manufacturer looking for equipment (baths, controls) for the acid etching of refratory metals-Nb, Zr, Mo, Ta, Re, Ti. The entire line for each acid consists of one acid tank and two rinse tanks. The acids to be used are HCl, HF, and HNO3. The parts and metal stock to etched range in size from washers of said metals (example-washers like a standard 8-32 machine screw washer) to mounting enclosure rings 1 ft in diameter and 4 inches high. The size of the etching baths should be 6 1/2 gallons and made of lined stainless steel or plastic materials of equivelant strength. Rinse tanks can be or metal or plastic construction. The water in the rinse tanks is changed by continuous cascade or quick dump.

Information of any manufacturers or distributors or equipment for our line would be greatly appreciated.

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