Etching monitor

Nonchromated for Aluminum

Oxide Coating

COPPER - NICKEL - ZINC - CADMIUM - LEAD - CHROMIUM COPPER - NICKEL - ZINC - CADMIUM - LEAD - CHROMIUM

U.S. Patent 5,487,949. Jan. 30, 1996 M.P Schriever, Kent, Wash.

COPPER

A coated article exhibiting corrosion resistance and paint adhesion properties, comprising a substrate of aluminum or aluminum alloy; and a cobalt conversion coating formed on the substrate, comprising aluminum oxide A&O, as the largest volume percent, and one or more cobalt oxides from the group consisting of COO, Co,O,, and Co,O,.

Abrasive

Article

U.S. Patent 5,489,235. Feb. 6, 1996 J.J. Gagliardi and RX. L&ken, assignors Co.. St. Paul, Minn.

to 3M

An abrasive article comprising a surface having a machine direction axis and opposite side edges, each side edge being parallel to the machine direction axis, and a plurality of parallel rows of precisely shaped abrasive composites in fixed posi-

OCTOLIGSTU OCTOLIG’”TREATMENT IS

- NICKEL

- ZINC - CADMIUM

- LEAD - CHROMIUM

COPPER - NICKEL - ZINC - CADMIUM - LEAD - CHROMIUM COPPER - NICKEL- ZINC - CADMRJM- LRAD- CHROMIUM COPPER

- NICKEL

- ZINC

- CADMIUM

- LEAD - CHROMIUM

co?Pes- NlCPEL - ZINC - CADMIIJM - mm-CHROMIUM

Removing heavy metals from rinse water. Achieving EPA, State and Municipal compliance limit always. Giving final concentrations of 0.3 PPM, 0.05 PPM, 0.001 PPM. Treating water that is recycled and producing “zero” liquid discharge. Recovering heavy metals as 20% - 45% heavy metal sludge or as scrap metal. Providing low, lower, lowest total treatment cost at no capital investment if desired. In combination with multiple-tank counter-current low-retur pre-rinsing, saving 99% of otherwise-lost plating metal.

METRE-GENERAL 9085 Marshall Court, Westminster, CO 80 Telephone: 303/430-0095 or 8001634-9979 Fax: 3031430-7337 Emaib [email protected]

Circle 088 on reader information card

tion on the surface.

Etching

Monitor

U.S. Patent 5,489,361. Feb. 6, 1996 S.G. Barbee et al., assignors to IBM Corp., Armonk, N. Y

A method for contactless, real-time, insitu monitoring of a chemical etching process.

Target for Reactive

Chemicals

Sputtering

U.S. Patent 5,489,367. Feb. 6, 1996 K. Kubota and A. Hiraki, assignors to Hitachi Metals Lfd., Tokyo A method for forming a substantially stoichiometric titanium nitride film, which comprises the step of sputtering a target comprising titanium and nitrogen in the presence of a sputtering gas containing nitrogen, wherein the target has a nitrogen/ titanium atomic ratio of 0.20 to 0.90.

Aqueous

Zinc Solution

U.S. Patent 5,489,373. Feb. 6, 1996 A. Parlhasarafhi, assignor to Olin Corp., New Haven, Conn. A method for preparing an electrolyte for the deposition of a zinc containing antitamish coating on a metallic substrate by inhibiting the precipitation of zinc from the electrolyte comprising supplying an aqueous medium having a pH in excess of 7; dissolving in the aqueous medium silicon, from a water-soluble silicon source, in an amount that provides a silicon ion content effective to inhibit precipitation of zinc frmo the electrolyte; and subsequently dissolving 0.8 to 30 g/L of zinc ions.

METAL

FINISHING

??

NOVEMBER

1996

For further details, call or Fax us today!

SYSTEMS INC.

Tel. (519) 837-l 899 Fax: (519) 837-I 62

Cirda 031 on reader informatiun card

115