Rotary atomizer
1
ENTS GRANTED In the Metal Finishing Field Printed copies of patents are furnished by the Patent and Trademark Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 2023 1 Method for Removing Chromium Containing Coatings From Aluminum U.S. Patent 5,330,556. July 19, 1994 D.I?. McComM and C-F. Hsu, assignors to He&e/ Corp., Plymouth Meeting, Pa. A process for removing a chromium containing coating from an aluminum arti- cle, which comprises contacting with an aqueous alkaline treating solution at a pH above 10 for a sufficient time to form an aluminum article with an ultrasonically removable chromium containing coating; and treating the aluminum article with ultrasonic vibrations to remove the chro- mium containing coating. Blast Media Containing Magnesium Oxide U.S. Patent5,336,323. Aug. 16, 1994 B.S. Yam and A.E. Winston, assignors to Church & Dwfght co. Inc., Princeton, N.J. A blast media for stripping coatings or other contaminants from a solid surface comprising water-soluble abrasive particles and magnesium oxide in an amount effec- tive to reduce blast media residues on the solid surface. Chromium Alloy Electrodeposition U.S. Patent5,336,433. Aug. IS, 1994 G. II! Maybe et al., assignors to McDonnell Douglas Corp., Long Beach, Calif. A process for simultaneous electrode- position of at least a two-component alloy system of cobalt and chromium on a substrate, which comprises electrolyzing an aqueous solution consisting essentially of divalent cobalt and trivalent chromium ions and ethylenediaminetetraacetic acid, at a pH of 3-5, in an electrolytic cell containing an anode and a cathode, and cc&positing cobalt and chromium on the cathode as the substrate. Electroless Nickel Plating Baths U.S. Patent5,336$42. Aug. 16, 1994 G.O. Mabry, Ekctrotess Bchnobgies Corp., Ciover- dale, Los Angeles A process for stabilizing electroless nickel plating baths employing a hypo- phosphite reducing agent and conducted under electroless nickel plating conditions, which comprises adding lithium hydroxide to the bath to form dilithium phosphite therein from the reaction of the hydroxide and the phosphite anion produced in the electroless reaction, subjecting the bath to insolubility conditions to form insoluble dilithium phosphite, and thereafter remov- ing the phosphite anion from the bath in the insoluble dilithium phosphite. Parts Washer U.S. Patent 5357,648. Ott 25, 1594 A. Noestheden,assignor to ValiantMachine 8 Tool Inc., Windsor, Canada An apparatus for washing and then drying parts comprising a housing having an inlet for receiving parts to be washed and an outlet for discharging parts after drying; a first conveyor having one end adjacent the housing inlet for receiving parts to be washed; a second conveyor having one end adjacent the housing outlet; means for driving the conveyors; means for spraying a liquid washing solution on the parts on the first conveyor, means for transferring the parts from the first conveyor to the second conveyor; and means for directing a gas stream onto the parts to dry them; wherein the conveyors each comprise an endless chain. Rotary Atomizer U.S. Patent 5,358,1&Z Ott 25, 1994 M. Cqpeau and L. Turc, assignoix to Sames S.A., Meylan, France A device with a rotating atomizer head for electrostatically spraying liquid coating product. Printed Circuit Board U.S. Patent5,356,602. &t. 25, 1994 G.R. Sutcliffe and J.B. Conrod, assignors to Enthone- OM Inc., Mst Haven, Corm. A method for making printed circuit boards comprising contacting with a condi- tioner to clean the board surface; contacting the conditioned board with a metal contain- ing activator to activate the board surface for plating; treating the activated board with a postactivator, treating the resulting board with a stabilizer, treating the stabi- lized surface with an etchant to etch the board surface; forming the desired circuit pattern on the board; and plating the board to the desired thickness. Electrolytic Etching Process U.S. Patent5,356,610. Oct. 25, 1994 S. Kawasumi and A. Uesugi, assignors to Fdi Photo Film Co. Ltd., Minamkashigara, Japan A method for electrolytic treatment comprising forming a rough surface on a material to be treated by supplying altemat- ing current between the material to be treated and electrodes in an electrolytic solution containing metal ion. Corrosion-Resistant Anodized Aluminum U.S. Patent5,356,623. Oct. 25, 1994 J. H! B&r, ass&nor to Sanchem Inc., Chicago A method of protecting an aluminum or aluminum ahoy, which has not been treated with chromium and has been anodized by electrolysis to provide an anodized alumi- num or aluminum alloy, comprising prepar- ing a nonchromium alkali metal permanga- nate solution having a pH in the range of 4.0-8.0; heating the solution to a tempem- tune of from 170-212’F, rinsing with warm water, coating with the permanganate solu- tion; and forming a nonchromium mixed metal oxide coating of aluminum and manganese oxides on the anodized alumi- num or aluminum alloy. Electroless Plating Process U.S. Patent5,366,907. act 25, 1994 K.H. Mng, assignor to Xerox Corp., Stamford, Conn. A method of electrolessly depositing metals on a silicon substrate by immersing the substrate in hydrofluoric acid contain- ing a buffered metal salt solution. Electroless Solder Plating Bath U.S. Patent5,360,471. Nov. 1, 1994 Y Takann and A. Senda, assignors to Murata Mfg. Co. Ltd, Kyoto, Japan An electroless solder plating bath con- taining bivalent ions of tin and of lead, a complexing agent, and a reductant, said reductant containing trivalent titanium ions in an amount sufficient to convert tin and lead ions to the metallic state. METAL FINISHING . JUNE 1995 147
-
Upload
hoangkhanh -
Category
Documents
-
view
222 -
download
1
Transcript of Rotary atomizer
ENTS GRANTED In the Metal Finishing Field Printed copies of patents are furnished by the Patent and Trademark Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 2023 1
Method for Removing Chromium Containing Coatings From Aluminum U.S. Patent 5,330,556. July 19, 1994 D. I?. McComM and C-F. Hsu, assignors to He&e/ Corp., Plymouth Meeting, Pa.
A process for removing a chromium containing coating from an aluminum arti- cle, which comprises contacting with an aqueous alkaline treating solution at a pH above 10 for a sufficient time to form an aluminum article with an ultrasonically removable chromium containing coating; and treating the aluminum article with ultrasonic vibrations to remove the chro- mium containing coating.
Blast Media Containing Magnesium Oxide U.S. Patent5,336,323. Aug. 16, 1994 B.S. Yam and A.E. Winston, assignors to Church & Dwfght co. Inc., Princeton, N.J.
A blast media for stripping coatings or other contaminants from a solid surface comprising water-soluble abrasive particles and magnesium oxide in an amount effec- tive to reduce blast media residues on the solid surface.
Chromium Alloy Electrodeposition U.S. Patent5,336,433. Aug. IS, 1994 G. II! Maybe et al., assignors to McDonnell Douglas Corp., Long Beach, Calif.
A process for simultaneous electrode- position of at least a two-component alloy system of cobalt and chromium on a substrate, which comprises electrolyzing an aqueous solution consisting essentially of divalent cobalt and trivalent chromium ions and ethylenediaminetetraacetic acid, at a pH of 3-5, in an electrolytic cell containing an anode and a cathode, and cc&positing cobalt and chromium on the cathode as the substrate.
Electroless Nickel Plating Baths U.S. Patent5,336$42. Aug. 16, 1994 G.O. Mabry, Ekctrotess Bchnobgies Corp., Ciover- dale, Los Angeles
A process for stabilizing electroless nickel plating baths employing a hypo- phosphite reducing agent and conducted
under electroless nickel plating conditions, which comprises adding lithium hydroxide to the bath to form dilithium phosphite therein from the reaction of the hydroxide and the phosphite anion produced in the electroless reaction, subjecting the bath to insolubility conditions to form insoluble dilithium phosphite, and thereafter remov- ing the phosphite anion from the bath in the insoluble dilithium phosphite.
Parts Washer U.S. Patent 5357,648. Ott 25, 1594 A. Noestheden, assignor to Valiant Machine 8 Tool Inc., Windsor, Canada
An apparatus for washing and then drying parts comprising a housing having an inlet for receiving parts to be washed and an outlet for discharging parts after drying; a first conveyor having one end adjacent the housing inlet for receiving parts to be washed; a second conveyor having one end adjacent the housing outlet; means for driving the conveyors; means for spraying a liquid washing solution on the parts on the first conveyor, means for transferring the parts from the first conveyor to the second conveyor; and means for directing a gas stream onto the parts to dry them; wherein the conveyors each comprise an endless chain.
Rotary Atomizer U.S. Patent 5,358,1&Z Ott 25, 1994 M. Cqpeau and L. Turc, assignoix to Sames S.A., Meylan, France
A device with a rotating atomizer head for electrostatically spraying liquid coating product.
Printed Circuit Board U.S. Patent5,356,602. &t. 25, 1994 G.R. Sutcliffe and J.B. Conrod, assignors to Enthone- OM Inc., Mst Haven, Corm.
A method for making printed circuit boards comprising contacting with a condi- tioner to clean the board surface; contacting the conditioned board with a metal contain- ing activator to activate the board surface for plating; treating the activated board with a postactivator, treating the resulting board with a stabilizer, treating the stabi- lized surface with an etchant to etch the
board surface; forming the desired circuit pattern on the board; and plating the board to the desired thickness.
Electrolytic Etching Process U.S. Patent5,356,610. Oct. 25, 1994 S. Kawasumi and A. Uesugi, assignors to Fdi Photo Film Co. Ltd., Minamkashigara, Japan
A method for electrolytic treatment comprising forming a rough surface on a material to be treated by supplying altemat- ing current between the material to be treated and electrodes in an electrolytic solution containing metal ion.
Corrosion-Resistant Anodized Aluminum U.S. Patent5,356,623. Oct. 25, 1994 J. H! B&r, ass&nor to Sanchem Inc., Chicago
A method of protecting an aluminum or aluminum ahoy, which has not been treated with chromium and has been anodized by electrolysis to provide an anodized alumi- num or aluminum alloy, comprising prepar- ing a nonchromium alkali metal permanga- nate solution having a pH in the range of 4.0-8.0; heating the solution to a tempem- tune of from 170-212’F, rinsing with warm water, coating with the permanganate solu- tion; and forming a nonchromium mixed metal oxide coating of aluminum and manganese oxides on the anodized alumi- num or aluminum alloy.
Electroless Plating Process U.S. Patent5,366,907. act 25, 1994 K.H. Mng, assignor to Xerox Corp., Stamford, Conn.
A method of electrolessly depositing metals on a silicon substrate by immersing the substrate in hydrofluoric acid contain- ing a buffered metal salt solution.
Electroless Solder Plating Bath U.S. Patent5,360,471. Nov. 1, 1994 Y Takann and A. Senda, assignors to Murata Mfg. Co. Ltd, Kyoto, Japan
An electroless solder plating bath con- taining bivalent ions of tin and of lead, a complexing agent, and a reductant, said reductant containing trivalent titanium ions in an amount sufficient to convert tin and lead ions to the metallic state.
METAL FINISHING . JUNE 1995 147
