metal surface and at least one electrode lying opposite it into contact with an electrolyte; apply- ing an electrical voltage between the metal surface and the elec- trode; positioning between the electrode and the metal surface at least one electrically unconnected insoluble in termedia te member comprising a roller with an elec- trically conductive material on at least a part of its outer surface, and rolling each in te rmed ia te member along the metal surface, each intermediate member acting as a bipolar electrode; wherein at least one electrically insulat ing member is interposed between each intermediate member and the metal surface to form a gap between each intermediate mem- ber and the metal surface.

ELECTROPLATED F O A M U.S. Pate~t 5,804,053. Sept. 8, 1998 A.J. Vaccaro et al., assignors to Eltech Systems Corp., Chardon, Ohio

In a process for continuously elec- troplating a strip of reticulated foam and providing electroplated foam of improved weight distribu- tion, in which process multiple electroplating zones are provided and each zone has an electroplat- ing bath, a cathode, and an anode and with the reticulated foam be- ing introduced into the electro- plating bath and guided in a path of travel past the anode and cath- ode of each electroplating zone, the improvement comprising pro- viding a cathode roll outside of the electroplating bath as a cathode; positioning an insoluble anode as a sole anode in a first electroplat- ing zone for the electroplating process; positioning at least one soluble anode within one, but less than all, of the e lectroplat ing zones of the electroplating pro- cess; separating the electroplat- ing bath of the first electroplating zone from the electroplating bath

of s u b s e q u e n t e l ec t rop l a t i ng zones; guiding the re t icu la ted foam in the electroplating bath in a path of travel past both the insoluble anode and the soluble anode, and past the cathode roll positioned outside of the electro- plating bath; and removing elec- troplated conductive reticulated foam of improved weight distribu- tion from the electroplating bath.

A P P A R A T U S FOR P ICKL ING STAINLESS STEEL STRIP U.S. Patent 5,804,056. Sept. 8, 1998 F.G. Pempera et al., assignors to MonnesmaJm AG, D~tsseldor[i Germany

A process for continuous treat- ment of a nonannealed hot strip of stainless steel in a descaling unit comprising breaking a scale by

stretching, bending, and straight- ening of the nonannea led hot strip; electrolytic pickling in an electrolyte with multiple alternat- ing anodically connected and ca- thodically connected strip polar- ization; pickling in an electrolyte wi th mul t ip le anodical ly con- nected electrodes a r ranged di- rectly behind one another and cor- r e spond ing ca thodic s t r ip polarization, followed by anodic strip polarization produced by means of a cathodically connected electrode; abrasively t reat ing a surface of the hot strip; renewed electrolytic pickling in an electro- lyte with multiple exclusively ca- thodically connected electrodes and anodic strip polarization; and post-treating the surface of the hot strip.

Instant Automatic Calibration and Substrate Selection... Ferrous or Non-Ferrous.

• Basic, Standard (Statistics) or Memory Models Available

• Simple Two-Button Operation on All Models

• Solvent, Acid, Oil, Water and Dust Resistant

• Ideal for Painters, Powder Coaters, Platers, Galvanizers, Anodizers... and More

N l l l l # ' Flip Display and Indicator Light

To l l F r e e 1 - 8 0 0 - 4 4 8 - 3 8 3 5 ( wtth Built-In I \ or Separate /

|

I II eFelsk°l B02 Prootor Ave .PO Box 70. Ogdensburg, N¥ t3669 USA C O R P O P,. A T ! O N Tel (315) 393-4450 • Fax (315) 3g3-8471 • Web http://www.defelsko.com

Circle 016 on reader informat ion card

February 1999 119