Alternative Metal Finishes

0,29

MB

63

stron

4270

ID

National Risk Management Research Laboratory

1999

rok

CONTENTS

Section One Introduction . 1

Section Two Pollutants of Concern in the Metal Finishing Industry 9

Section Three Available Technologies , 15

Non-Cyanide Copper Plating . 15

Non-Cyanide Metal Stripping 19

Zinc-Alloy Electroplating 22

Blackhole Technology 28

Ion Vapor Deposition of Aluminum (IVD) 34

Physical Vapor Deposition (PVD) . 39

Chromium-Free Surface Treatments for Aluminum and Zinc 42

Metal Spray Coating44

Section Four Emerging Technologies . 47

Nickel-Tungsten-Silicon Carbide Plating . 47

Nickel-Tungsten-Boron Alloy Plating 49

In-Mold Plating . 51

Section Five Pollution Prevention Strategies 53

Section Six Information Sources 57