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Automated electrodeposition line
An electrolw m&d plating bath composition. comprising water; a soluble source of metal ions: a soluble source of mediator ions. different from the metal ions, chosen from the group consisting of palladium. platinum. silver. ruthenium, iridium, osmium and rhodium; a first complexing agent for at least the metal ions; and a reducing agent for reducing the mediator ions.
Automated Line
Electrodeposition
U.S. fafenf 5562,810 Oct. 8, 1996 G.T. Urquhati, assignor to Volcor Finishing Bloomfield Hills, Mich.
Inc.,
A substantially automated electrodeposition line for coating parts, comprising a parts loading station; first and second barrels and carriages for supporting the barrels; a series of tanks for holding metal coating liquids and adapted to receive the barrels; a parts transfer mechanism for transferring parts from the first barrel to the second barrel; a parts unloading station for unloading parts from the second barrel; a conveyor for receiving coated parts thereon; a curing oven through which a portion
/-
of the conveyor extends; and at least one overhead programmed hoist for transferring the carriages between the parts loading station, the tanks, and the parts unloading station.
Sludge-Limiting Electroplating
Tin and/or Lead Bath
U.S. Patent 5,562,814. Oct. 8, 1996 J. Kirby, assignor to Da/e Electronics Columbus, Neb.
Inc.,
An electroplating solution comprising a sulfonic acid; a metal selected from the group consisting of tin, lead, tin-lead alloys, tin alloys, and lead alloys; and an alkali carbonate salt in an amount sufficient such that the pH of the electroplating solution is 5.0 or less.
Apparatus for Recovering Pickling Liquors
Acid
U.S. Patent 5562,828. Oct. 8, 1996 DR. Olsen, fawling, IV. Y and DE. Bailey, Palmer, Mass.
A process for recovering acid from a metal pickling operation including the steps of treating metal products in an acid
bath to remove metal oxides, withdrawing a first solution of metal salts in acid from the pickling operation, delivering the first solution to one side of an anion exchange membrane such that a portion of the acid permeates through the membrane to an opposite recovery side of the membrane, withdrawing a reduced strength acid solution of the metal salts from the one side of the membrane, and returning acid from the recovery side of the membrane to the pickling operation, wherein the improvement comprises chilling the reduced strength solution of metal salts, which have been withdrawn from one side of the membrane, to a temperature at which at least a portion of the metal salts crystallize, whereby the remaining liquid constitutes a mother liquor of reduced strength acid depleted of metal salts; extracting the mother liquor from the crystallized metal salts, the metal salt crystals having a low acidity corresponding to the reduced strength acid of the mother liquor; delivering the mother liquor to mix with the acid on the recovery side of the membrane for return to the pickling operation; and discharging the crystallized metal salts.
\
0
Henkel
If you’re usinga parts washer in your facility...
su-fmxs Tinologies
R
PLEiWEREADTYMS!!!
bmonstrating the T EsslogksffySafe AqueeusParts WashingSystem.
m
l l
l
l
l
l
Eliiinrtst noedfor hazardtm solvents 0 h8zardous l
New “Utra Zinc” Process Uttramate-2835for GM6035M
W8Ste Up t0 9036
ULTRAPHOS” 1202 Nickel Free Zinc Phosphate Zinc, Iron, Manganese Phosphates for It-on & Steel uLTRAMATE”olLs Emulsion & Solvent Type MAKERCLEAN” CLEANERS Immersion or Spray for Iron, Steel 8, Aluminum ALTF!A!3l3l”ORGANlCS Wter based dipspin & spray coatings
0 FoaturoN:
ultrasonicand air agitation belt oil skimming 0 6retitiyllldum l
32100 Stephenson Highway, Madison Heights, Ml 48071 (800) 953-5858 In Canada (416) 746-8085
cleaningcosts tIsed& industry
To receive your FREEVIDEO demenstrtiion Call: Weguarantn you’ll be amazed at how well the TASCSOWKS ENWRONSIAENTAL PARTSWASfflff 6 SYSTEM SERVICESGROUP tackles tough cleaning Problems! 452 liedaon Terrace wtaMwmb&rrrmnTcom. Enfllewood Cliffs, IYJ07632
Circle
008 on reader
information
METAL FINISHING . JUNE 1997
card
Circle
151 on reader
information
card
169
Automated Line
Electrodeposition
U.S. fafenf 5562,810 Oct. 8, 1996 G.T. Urquhati, assignor to Volcor Finishing Bloomfield Hills, Mich.
Inc.,
A substantially automated electrodeposition line for coating parts, comprising a parts loading station; first and second barrels and carriages for supporting the barrels; a series of tanks for holding metal coating liquids and adapted to receive the barrels; a parts transfer mechanism for transferring parts from the first barrel to the second barrel; a parts unloading station for unloading parts from the second barrel; a conveyor for receiving coated parts thereon; a curing oven through which a portion
/-
of the conveyor extends; and at least one overhead programmed hoist for transferring the carriages between the parts loading station, the tanks, and the parts unloading station.
Sludge-Limiting Electroplating
Tin and/or Lead Bath
U.S. Patent 5,562,814. Oct. 8, 1996 J. Kirby, assignor to Da/e Electronics Columbus, Neb.
Inc.,
An electroplating solution comprising a sulfonic acid; a metal selected from the group consisting of tin, lead, tin-lead alloys, tin alloys, and lead alloys; and an alkali carbonate salt in an amount sufficient such that the pH of the electroplating solution is 5.0 or less.
Apparatus for Recovering Pickling Liquors
Acid
U.S. Patent 5562,828. Oct. 8, 1996 DR. Olsen, fawling, IV. Y and DE. Bailey, Palmer, Mass.
A process for recovering acid from a metal pickling operation including the steps of treating metal products in an acid
bath to remove metal oxides, withdrawing a first solution of metal salts in acid from the pickling operation, delivering the first solution to one side of an anion exchange membrane such that a portion of the acid permeates through the membrane to an opposite recovery side of the membrane, withdrawing a reduced strength acid solution of the metal salts from the one side of the membrane, and returning acid from the recovery side of the membrane to the pickling operation, wherein the improvement comprises chilling the reduced strength solution of metal salts, which have been withdrawn from one side of the membrane, to a temperature at which at least a portion of the metal salts crystallize, whereby the remaining liquid constitutes a mother liquor of reduced strength acid depleted of metal salts; extracting the mother liquor from the crystallized metal salts, the metal salt crystals having a low acidity corresponding to the reduced strength acid of the mother liquor; delivering the mother liquor to mix with the acid on the recovery side of the membrane for return to the pickling operation; and discharging the crystallized metal salts.
\
0
Henkel
If you’re usinga parts washer in your facility...
su-fmxs Tinologies
R
PLEiWEREADTYMS!!!
bmonstrating the T EsslogksffySafe AqueeusParts WashingSystem.
m
l l
l
l
l
l
Eliiinrtst noedfor hazardtm solvents 0 h8zardous l
New “Utra Zinc” Process Uttramate-2835for GM6035M
W8Ste Up t0 9036
ULTRAPHOS” 1202 Nickel Free Zinc Phosphate Zinc, Iron, Manganese Phosphates for It-on & Steel uLTRAMATE”olLs Emulsion & Solvent Type MAKERCLEAN” CLEANERS Immersion or Spray for Iron, Steel 8, Aluminum ALTF!A!3l3l”ORGANlCS Wter based dipspin & spray coatings
0 FoaturoN:
ultrasonicand air agitation belt oil skimming 0 6retitiyllldum l
32100 Stephenson Highway, Madison Heights, Ml 48071 (800) 953-5858 In Canada (416) 746-8085
cleaningcosts tIsed& industry
To receive your FREEVIDEO demenstrtiion Call: Weguarantn you’ll be amazed at how well the TASCSOWKS ENWRONSIAENTAL PARTSWASfflff 6 SYSTEM SERVICESGROUP tackles tough cleaning Problems! 452 liedaon Terrace wtaMwmb&rrrmnTcom. Enfllewood Cliffs, IYJ07632
Circle
008 on reader
information
METAL FINISHING . JUNE 1997
card
Circle
151 on reader
information
card
169