Nickel Plating Handbook

Nickel Plating Handbook

Nickel Institute

2014

79 sivua

20,00 €

Tilaa kirjoja

 

 

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