A device comprising a flow celldefining a treatment region thatcontains a treatment location thatextends along a plane for thechemical or electrolytic surfacetreatment of plate-shaped articlesat the treatment location, when amain plane of the articles extendsalong the plane along which thetreatment location extends, withfirst feed elements in the form oftubes with outlet openings for thedirected supply of a process liquidto the treatment region, charac•terized by additional, second feedmeans in the treatment region forthe directed introduction of airinto the active area of guide ele•ments, which consist of flow grat•ings maintained at a distance on

both sides of the treatment loca•tion, with small plates arrangedin the manner of a shutter, whichare inclined upward and down•ward in the direction parallelwith the plan along which thetreatment location extends.

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U.S. Patent 5,897,761. Apr. 27, 1999H. Tagusari et at., assignors toMitsui Mining & Smelting Co. Ltd.,TokyoA method for manufacturing anelectrodeposited copper foil hav•ing a matte side and a shiny sidefor use in making a printed wiringboard, which comprises buffingthe surface of the matte side ofthe electrodeposited copper foil to

completely remove the originalprofile of the matte side; furtherbuffing the surface of the matteside to form a fine roughness hav•ing buffed linear streaks and tocontrol the surface roughness ofthe matte side to 1.5 JLm or less;and subjecting the buffed matteside to a nodule forming treat•ment and controlling the surfaceroughness to 1.5 to 2.0 JLm afterthe nodule forming treatment.

MnIIOD ... COLOalI8 TOOL l1li'U.S. Patent 5,897,762. Apr. 27, 1999K. T. Liu, Taichung Hsien, TaiwanA method for coloring tool bits,said method comprising providinga plurality of tool bit bodies, saidtool bit bodies each including at

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tion of pickled hot strip and coldstrip comprising electrolyticallypickling the strip with a pluralityof electrodes, which are arrangeddirectly one after the other andconnected in an alternating man•ner as anodic banks with cathodicstrip polarization and as cathodicbanks with anodic strip polariza•tion thereby providing changingpolarization to the strip as itpasses the electrodes; and ultra•sonically cleaning the strip sur•face with ultrasonic generatorsarranged between at least one ofindividual adjacent anode banksand cathode banks.

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.....TIIIIIT OP ........... S1'&LSTIIIPSU.S. Patent 5,897,764. Apr. 27, 1999F.G. Pempera and M. Haentjes,assignors to Mannesmann AG,Dusseldorf, Germany

A process for removing scale froma surface of a high-grade steelstrip in installations for produc-

ener; adding an amount of at leastone antidazzle compound selectedfrom the group, which consists ofsubstituted and unsubstituted eth•ylene-oxide adducts, propyleneox•ide adducts, and ethyleneoxide•propyleneoxide adducts in anamount sufficient to render the de•posited nickel glare-free; maintain•ing a concentration of antidazzlecompounds to a range greater thanzero and less than 5 mgIL; main•taining a temperature between 40and 75'C; and controlling the con•centration and temperature so thatthe bath during electroplating ap•pears clear to the eye upon visualinspection and so that the bathshows practically no diffuse scatter•ing of light incident upon the bath.

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least one end, electroplating saidtool bit bodies for forming anouter layer, which is glossy on theouter peripheral surface of saidtool bit bodies including said atleast one end, machining said atleast one end of said electroplatedtool bit bodies for forming a toolbit end that is not glossy, and dy•ing said tool bit bodies for allow•ing color material to be attachedonto said tool bit end and for col•oring said tool bit end, but notattached on the remaining elec•troplated surface, which is glossy.

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..ClIIOPLA................NICOL DIPOSITS _U.S. Patent 5,897,763. Apr. 27, 1999C. Elligsen et al., assignors to LPW·Chemie GmbH, Neuss, Germany

A method of electrodepositing aglare-free nickel coating upon ametallic surface of a substrate con•sisting essentially of electroplatingnickel from a bath selected fromthe group, which consists of Watts,sulfamate, sulfonate, and fluorobo•rate electrolytes and mixturesthereof containing a basic bright-

February 2000 121