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Electrowinning of lead
coupled to the lift wheel to provide rotation about the central axis of rotation.
A nozzle assembly and system for applying powder to a workpiece.
Blasting Apparatus U.S.Pafenf ~$520,572.May28, 1996
Composite Plated Coating U.S. Patent 5,520,791. May 28, 1996 Y Murase, assignor to Yamaha Hafsudoki KK, Iwafa, Japan
A. E. Opel et al., assignors to Alpheus Cleaning Technologies Corp., Ranch0 Cucamonga, Calif. An
apparatus for producing and blasting sublimable carbon dioxide granules on demand.
Coated Abrasive U.S.Patent 5,520,711. May
28, 1996 H.J. Helmin, assignor to 3M Co., St. Pau/, Minn.
A method of making a coated abrasive article adapted to contact and abrade a workpiece, comprising providing a backing; providing an abrasive surface comprising abrasive particles and a binder, said binder adhering the abrasive particles to the backing; applying to at least a portion of the abrasive surface a grinding aid precursor composition; and subjecting the grinding aid precursor composition to conditions SUITcient to substantially cure the thermoset resin.
Powder Coating Apparatus U.S.Patent 5,520,735. May 26, 1996
A plating coating formed on a surface of
a work, having a nonhomogeneous distribution of a dispersed substance, said distribution being changed at intervals or continuously in the outward direction in which the plating coating is formed from a single electroplating liquid in such a way that the amount of the dispersed substance near the outer surface is at least 1.0% by weight greater than that near the surface of the work, wherein the amount of the dispersed substance near the surface of the work and near the outer surface of the plating coating are 0.2-45% by weight and 1.5-10% by weight, respectively.
Electrowinning of Lead U.S. Patent 5,520,794. May 28, 1996 M.D. Gernon, assignor to E/f Afochem North America Inc., Philadelphia A process for the recovery of lead metal comprising electrowinning by utilizing an
DC. Mu/&r, assignor to Nordson Corp., West Lake, Ohio
inert anode and a lead receptive cathode in an aqueous solution of a lead salt of a C,-C, alkane sulfonic acid, and in the absence of a redox couple in the aqueous solution.
Process for Recovering Etch Solutions U.S. Patent 5,520,814. May 28, 1996 A.M. Cc/i, assignor to In. Tee. lfalia international Environment Technology S.r./., Frosinone, /ta/y A process for recovering spent copper etching solutions, comprising extracting copper ions with a liquid ion exchanger comprising oximes free of aromatic compounds so as to obtain a copper-loaded ion exchanger and a regenerated etching solution; heating the liquid ion exchanger; washing the heated liquid ion exchanger with water and a small quantity of hydrochloric acid so as to obtain a wash water; vaporizing the wash water thereby producing a concentrate; crystallizing the concentrate after vaporization; filtering the regenerated etching solution; restoring the quality of the regenerated etching solution by the addition of gaseous ammonia; reextracting copper from the copper-loaded ion exchanger using sulfuric acid; washing the
&@J=@= 800-695-6762 F&R 461-333-6201 Circle 077 on reader informationcard METAL FINISHING
. FEBRUARY
1997
Circle026 on readerinformationcard 115
A nozzle assembly and system for applying powder to a workpiece.
Blasting Apparatus U.S.Pafenf ~$520,572.May28, 1996
Composite Plated Coating U.S. Patent 5,520,791. May 28, 1996 Y Murase, assignor to Yamaha Hafsudoki KK, Iwafa, Japan
A. E. Opel et al., assignors to Alpheus Cleaning Technologies Corp., Ranch0 Cucamonga, Calif. An
apparatus for producing and blasting sublimable carbon dioxide granules on demand.
Coated Abrasive U.S.Patent 5,520,711. May
28, 1996 H.J. Helmin, assignor to 3M Co., St. Pau/, Minn.
A method of making a coated abrasive article adapted to contact and abrade a workpiece, comprising providing a backing; providing an abrasive surface comprising abrasive particles and a binder, said binder adhering the abrasive particles to the backing; applying to at least a portion of the abrasive surface a grinding aid precursor composition; and subjecting the grinding aid precursor composition to conditions SUITcient to substantially cure the thermoset resin.
Powder Coating Apparatus U.S.Patent 5,520,735. May 26, 1996
A plating coating formed on a surface of
a work, having a nonhomogeneous distribution of a dispersed substance, said distribution being changed at intervals or continuously in the outward direction in which the plating coating is formed from a single electroplating liquid in such a way that the amount of the dispersed substance near the outer surface is at least 1.0% by weight greater than that near the surface of the work, wherein the amount of the dispersed substance near the surface of the work and near the outer surface of the plating coating are 0.2-45% by weight and 1.5-10% by weight, respectively.
Electrowinning of Lead U.S. Patent 5,520,794. May 28, 1996 M.D. Gernon, assignor to E/f Afochem North America Inc., Philadelphia A process for the recovery of lead metal comprising electrowinning by utilizing an
DC. Mu/&r, assignor to Nordson Corp., West Lake, Ohio
inert anode and a lead receptive cathode in an aqueous solution of a lead salt of a C,-C, alkane sulfonic acid, and in the absence of a redox couple in the aqueous solution.
Process for Recovering Etch Solutions U.S. Patent 5,520,814. May 28, 1996 A.M. Cc/i, assignor to In. Tee. lfalia international Environment Technology S.r./., Frosinone, /ta/y A process for recovering spent copper etching solutions, comprising extracting copper ions with a liquid ion exchanger comprising oximes free of aromatic compounds so as to obtain a copper-loaded ion exchanger and a regenerated etching solution; heating the liquid ion exchanger; washing the heated liquid ion exchanger with water and a small quantity of hydrochloric acid so as to obtain a wash water; vaporizing the wash water thereby producing a concentrate; crystallizing the concentrate after vaporization; filtering the regenerated etching solution; restoring the quality of the regenerated etching solution by the addition of gaseous ammonia; reextracting copper from the copper-loaded ion exchanger using sulfuric acid; washing the
&@J=@= 800-695-6762 F&R 461-333-6201 Circle 077 on reader informationcard METAL FINISHING
. FEBRUARY
1997
Circle026 on readerinformationcard 115