Nickel Institute
2014
79 sivua
20,00 €
KUVAUS
Erinomainen tietopaketti nikkelöinnin perusteista tarkempiin vinkkeihin englanniksi. Sisältää sähkökemian perusteet, kylpyjen koostumukset, käyttökohteet, testausmenetelmät, vianhaun, vinkkejä, jätteen minimointiin suositukset sekä työ- ja ympäristö näkökohtia.
SISÄLLYSLUETTELO
1 Introduction
2 Understanding the Electroplating Process
Basic Process of Electrodeposition
Rate of Deposition
Current Efficiency
Average Coating Thickness
Deposit Thickness Distribution
Current Distribution
Throwing Power
Internal Stress
Levelling and Microthrowing Power
3 Chemistry of Nickel Electroplating Solutions
The Watts Nickel Plating Solution
Function of Ingredients
The Role of Addition Agents
Bright Nickel Plating
Auxiliary Brighteners
Anti-Pitting Agents
Semi-Bright Nickel Solutions
Sulphamate Nickel Electroplating Solutions
Other Nickel Electroplating Processes
4 Anodes for Nickel Plating
Nickel Anode Requirements
Types of Nickel Anode Material
Titanium Anode Baskets
Power Consumption
Packing Density
Anode Fines
Anode Bags
Practical Tips for Maintenance of Nickel Anode Baskets
Anode Maintenance – Best Practice
Insoluble Anodes
5 Decorative Nickel Plating
Bright Nickel Plating
Satin Nickel Plating
Nickel-Chromium Coatings for Exterior Service
Multi-Layer Nickel
Microdiscontinuous Chromium
Alternative Topcoats
Specifications for Decorative Nickel-Chromium Plating
Service Condition Number
Classification Number
Type of Copper Coating
Plating on Plastics Materials
6 Engineering and Functional Nickel Coatings
Coating Requirements for Functional Applications
Types of Nickel Plating Solutions for Functional Applications
Electroforming
Mandrels
Electroforming Techniques
7 Barrel Nickel Plating
Design of Plating Barrels
Type of Work Suitable for Barrel Plating
Barrel Loading
Barrel Nickel Plating Solutions
Voltage Requirements
Plating Rates and Metal Distribution
8 Testing Procedures for Nickel Electrodeposits
Appearance and Surface Quality
Coating Thickness
Destructive Methods
Non-Destructive Methods
Adhesion
Ductility
Corrosion Resistance
Thermal Cycle Test
Accelerated Corrosion Testing of Plated Plastics Materials
9 Controlling the Electroplating Process
Monitoring the Operating Conditions
Maintaining the Optimum Solution Composition
Control of Impurities
Purification Procedures
10 Trouble-Shooting
Common Types of Defects in Nickel Plating and Their Causes
Trouble-Shooting Techniques
11 Practical Tips
Effective Racking for Electroplating
Care and Maintenance of Plating Racks
Reducing Solution Losses
Avoiding Adhesion Problems Between the Semi-Bright and
Bright Nickel Coatings When Processing Dual-Layer Nickel
How To Avoid Chromium Problems in Decorative
Nickel/Chromium Plating
Preventive Maintenance
12 Looking After the Environment
Waste Minimisation
Recovery Techniques
13 Health and Safety
