Powder coating apparatus

Powder coating apparatus

POWUER COATING APPARATUS U.S. Patent 6,068,702. May 30, 2000 C. Bertellotti et al., assignors to Nordson Corp., Westlake, Ohio A powder coating appa...

183KB Sizes 0 Downloads 10 Views

POWUER COATING APPARATUS U.S. Patent 6,068,702.

May 30, 2000 C. Bertellotti et al., assignors to Nordson Corp., Westlake, Ohio

A powder coating apparatus capable of converting between at least two different powder coating systems, the apparatus comprising an operating hood having sides generally surrounding a powder coating area, with at least one side having an opening to allow the introduction of a part to be coated within the powder coating area; an air circulation system connected to the operating hood for drawing air from the powder coating area as the part is coated with powder; and an adjustable air flow regulator operatively connected with the air circulation system for controlling the draw of

air and powder out of the powder coating area between a first draw amount and a second, higher draw amount, wherein the first draw amount allows use of the hood as one powder coating systems and the second, higher draw amount allows use of the hood as another powder coating system. ELECTROSTATIC

COATING SYSTEM

U.S. Patent 6,068,877.

May 30, 2000 K. Seitz et al., assignors to Wagner International AG, Alstatten, Switzerland

A method of detecting and coating workpieces in an electrostatic coating system comprising applying a high voltage to an electrode of at least one electrostatic coating device, in which a spray current containing electrical charges

for charging particles of a coating material to be sprayed is generated by the electrode; passing an electrically conductive workpiece to be coated by the at least one coating device; determining the spray current of the high voltage electrode; detecting whether the workpiece is in front of the at least one coating device depending on the magnitude of the determined spray current; starting a discharge of the coating material by the at least one coating device when the spray current exceeds a first threshold value of spray current; and stopping the discharge of coating material by the at least one coating device when the spray current falls below a second threshold value of spray current.

Coating and Surface Treatment Systems for Metals by/. Edwards 470 pages $135.00 Selection of the most appropriate coating or other surface treatment is addressed in this comprehensive guide. Part I covers 76 industrially important coating types from acrylic polymers through zinc alloys. Part II provides an overview of the 19 most important coating and treatment methods with emphasis on the implications for a particular product in terms of its substrate or shape. Part Ill offers a guide to coating characteristics. Send Orders to:

METAL FINISHING,650 Avenue of the Americas., New York, NY 100113 For faster service, call (212) 633-3199 or FAX your order to (212) 633-3140 All book ordersmust be prepaid. Pleaseinclude $5.00 shippingand handlingfor delivery of each book via UP5 in the U.S., $10.00 for each book shipped express to Canada; and 520.00 for each book shippedexpressto all other countries.

Zinc Plating D.R Sperry & Co. has manufactured world class filter presses for liquidlsolid separation in sizes from ZOMM to 15WMM for over 100 years All press frames carry an unconditional 5 yr, warranty Sperry offers a full range of press automabon and recessed chamber, plate 8 frame and membrane/diaphragm plates. Plates are available from polypropylene, aluminum, cast iron and stainless steel. The all new SperryLok polypropylene flush plate and frame represents one of the ongoing innovations at Sperry It allows higher pressure/temperature combinations, is virtually media can still be utilized, cally improved.

APPUCATIONS 1Electrocoating for Anion and Cation paint systems. bEDI Systems l

blow-out proof, paper and safety is dramati-

& Co.

112 N. Grant Street, N. Aurora, IL 60542 Toll free: (888) 997-9297 Tel: (630) 892-4361 8Fax: (630) 892-1664

l

Electrodeposition of metals: nickel, chrome, etc. Electrodialysis.

128

360 pages

$125.00

This book contains 15 chapters equipment zincate

cleaning

and plant

includ-

procedures, layout,

cyanide,

and acid baths, post-plate

treat-

ments, troubleshooting, special operations such as mechanical and strip and wire continuous processing, control of solutions, and waste treatment. It is a practical volume written for the practitioner

and chemist. Send Orders to: METAL

PPG APPROVED

650 Avenue

FINISHING of the Americas

New York, NY 10011 mMemNE5lmERNAlmNAt.puc 52 Goadvfet Place. Glen Rock. NJ 07452 Fax: 201-447-2132

201447-3044

For faster service, call (212) 633-3199 or FAX your order to (212) 633-3140 All

book

orders

mwt

be prepaid.

Please mcludl

$5.00 shipping and handling for delivery of eacl book via UPS in the US., $10.00 for each boo1 shipped express to Canada; and $20.00 for eacl book shipped express to all other countries.

www.drsoenv.com Circle 057 on reader card or go to www.thru.toIwebconnect

by H. Geduld

lng a history,

1Water Treatment

Wnen you need e world class filter press, sludge dryer, replacement part, filter cloth, paper or screen, filter plates, precoat or body feed systems, and any other accessory, call the filtration engineers at:

D.R. Sperry

Manufacturers and worldwide suppliers of ANION and CATION ION EXCHANGE MEMBRANES.

Circle 073 on reader card or go to www.thru.to/webconnect Metal Finishing