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Radiotracer Study of Co-Deposition in Gold Electroplating.

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Radiolabelled carbon was used to determine amount incorporated in gold deposit, with cobalt hardener as additional variable. Parametric study of effects governing Co content of gold and deposit appearance.

Radiotracer Study of Electrochemical Displacement on Metals

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The rate of displacement of Ag from silver nitrate by Cu or Fe or Ni was det'd using Ag isotope 110. The effect of surface conditions were also studied. Thus cold-rolled Cu showed less exchange than annealed Cu. Disc'n. pp 88-89.

Radiotracer Study of Sensitization & Activation of Glass & Quartz

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PROT Study of process using stannous chloride & palladium salts to catalyse electroless dep'n e.g onto glass or quartz. Kinetics of tin ion adsorption are plotted & isotherms shown for Sn & Pd ions. A mechanism is deduced. 22 refs

Radiotracer Study of Thiourea Incorporation into Electrodeposited Copper

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PROT Problems arising during heat treatment of electroplated Cu (pit or pore formation) from thiourea cont'g solutions are due to S inclusions. Radiolabelled S was used to study the extent of this and it was found that incorporations are thiourea, not elemental S derived from it or sulphate ions. 7 refs

Radium Target and Method for producing it.

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Radium target & method for producing it for the production of radionuclides by means of accelerated protons, wherein an electrodeposition of radium out of at least one aqueous organic solution containing <226>Ra ions is carried out on at least one aluminium surface, wherein the aluminium surface is connected as cathode. With the <226>Ra target, <225>Ac/<213>Bi, which can be used, for example, for radioimmunotherapy for cancer treatment, can be produced continuously and in sufficient quantities at a reasonable price.

RAF corrosion control team choose Clemco equipment

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Abrasive blasting machines of Hodge Clemco Ltd., Orgreave Dr., Sheffield S13 9NR, at RAF North Luffenham, Leics., are described.

Railroad car brake assembly component

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Improving railroad car brake cylinder assembly by coating working component(s) of assembly with powder; and heating to temp. sufficient for melting and fusing power into coating.

Railway bridge refurbished

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Repainting of Fulham railway bridge is described. Primer was 2-pack high-build, low temp.-curing, surface-tolerant aluminium/epoxy primer. Priming was followed by 2 coats of high-solids 2-pack epoxy intermediate coat. Finish was a 2-pack recoatable aliphatic polyurethane.

Railway locomotive blasting hall

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Description of German Railways new blasting hall and paint shop, the former claimed to be the most modern in Europe, where locos are overhauled & refurbished. Comments on health & safety & operating practices.

Railway wagon painting: high technology in powder coating & in mixing

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New technologies linked as "Conveying & transfer, mixing, dosing, application" applied to railway wagon finishing in a German plant, are shown. Automated process control is one feature, greatly reduced solvent emission a second and both are combined in the "Cyclomat" design.

Rain gutter

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76,447. Metal is treated to obtain artificial green patina with composition containing e.g., Cu sulphate 130, acetic acid 50, NaCl 25 g/l and 10 g/l composition containing HCl 60 ml, Cu acetate 80, Cu carbonate 20, arsenous acid 10, NH4Cl 80, Cunitrate 20 g/l, and coated with water soluble acrylic paint 60 g/m*2. 76,448. Cu foil is coloured by sulphide or oxide film,coated with clear coating and applied to plastic e.g., pvc pipe. Exterior coating may be u.v. curable or urethane coating.

Rain water - an under-used resource

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Comment on use of rain water in Metal Finishing plants, with German website where examples of industrial use are shown.

Rainwater leaching from copper or zinc roofs

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The extent of corrosion from metal roofs caused by rainwater was meas'd

Raising Quality Standards by Cost-Effective Filtration & Carbon Purification of Plating Solutions

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Comment on uses of filtration, the importance of flowrate & velocity & plot of flowrate on solids removal. Cont'd p 42.

Raising Quality Standards by Cost-Effective Filtration & Carbon Purification of Plating Solutions 2.

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Pt 2. discusses economics of chamber oversizing, returns to pump types & mentions carbon filtration. Cont'd p. 42.