or an alkali metal, present in an amount of 2-100 g/L; an alkali metal hydroxide, 20- 100 g/L; and an alkali metal carboxylate, 2GlOO g/L.

Apparatus for Coating Strip U.S. Patent 5349,752. Aug. 27, 1996 R. Hahn et al., assignors to Coors Brewing Co., Golden, Co/o.

An apparatus for applying a coating ma- terial on both sides of a continuous strip of material.

Apparatus for Dispensing Conductive Coatings U.S. Patent 5,549,755. Aug. 27, 1996 R. Milovicb et al., assignors to Nordson Corp., Westlake, Ohio

Apparatus for supplying electrically conductive coating material, comprising a manifold connectable to at least one coat- ing dispenser; a number of filling stations each connected to a different source of coating material, said filling stations being electrically isolated from the discharge sta- tions: a number of coating transfer units

each including a c ombincd shultlr antI pumping device and movable to one of‘thc filling stations to receive a quantity of Coat ing material from ;L different source and then selectively movable to one of the dis- charge stations to transfer the coating ma- terial into the manifold.

Method for Hardening Metallic Elements U.S. Patent 5,549,809. Aug. 27, 199 EL! Barreau et al, assignors to Societe Nationale d’Etude et de Construction de Moteurs dWation “Snecma,” Paris

A method for hardening a metallic part. comprising electrolytically depositing a metallic protection film followed by shot blasting, thereby hardening, wherein the metallic protection film is thick enough to adhere throughout the shot blasting, and thin enough to allow the shot blasting to work harden the part and impart a residual compressive stress and removing the me- tallic protection film after completion of shot blasting.

Electrodeposition of Palladium- Silver Alloys U.S. Patent 5.549.810 Aug. 27. 1996 G. Herklotz et al.. assgnors to NC. Heraeus GmbH, Hanau. Germany

An aqueous xnmomacal bath for the electrodeposition of palladium-silver al- loys, which comprises S-50 g/L of palla- dium in the form of a palladium ammine complex: 240 g/L of silver in the form of a silver compound selected from the group consisting of silver chloride. silver nitrate, silver sulfate, and a silver diammine com- plex; 30.-150 g/L, of a conductive agent; S-100 g/L of an amine component com- prising at least one aliphatic polyamine with 2 to 10 amine groups selected from the group consisting of alkylene diamine with 2 to 6 C atoms in the alkylene group and polyethylene amine of the formula NH,(CH&H,NH),,H with n=2 to 5; and 2-50 g/L of at least one water-soluble mer- captoalkane compound selected from the group consisting of mercaptoalkane car- boxylic acid, mercaptoalkane sulfonic acid. and a salt of said mercapto acids; and has a pH value of 7.0 to 10.0, set by means of ammonium hydroxide.

lsoflux Cylindrical Magnetron Sputtering wraps a single, con-

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Circle 046 on reader information card

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The Vortex (pat. pending) ultrasonically deans and completely dries n a 5 minute cycle -- as fast as CFC solvent cleaning.The low tem- Erature centrii drying system produces zero residue and handles Iarts up to 3” long. Centrifugal action eliminates fluid cross nntamination and parts damage common to competitive designs. 3oth initial and operating costs are low. For unequalled speed in an aqueous system, consider the Zenith Vortex. Contact us for details.

Zenith Ultrasonics, Inc. I 85 Oak Street, Notwood, NJ 07648 201-767-l 332 I 800-432-SONICS I FAX 201-768-6999

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METAL FINISHING ?? APRIL 1997 105