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Wednesday
• Course Detail
Pretreatment for steels and stainless steels:
- Overview of the processes needed to prepare plain steel for plating
- Differences required to prepare stainless and high alloy steels
- Includes defects (and effect of) as a pretreatment problem
- Coating defects as a pretreatment problem
Pretreatment for aluminum:
- Overview of the processes needed to prepare aluminum for plating
- Standard and non-standard procedures
- Ammoniacal electroless strikes as a pretreatment step
Pretreatment for copper alloys:
- Overview of the processes needed to prepare copper for plating
- Activation of non-catalytic surfaces
Operation and control of electroless nickel solutions:
- What is needed to run different baths
- Importance of bath records
- Importance of bath control
Automatic bath control for electroless nickel plating:
- Overview of instrumental methods of bath control
Chemical and corrosion properties of Ni-P:
- Causes of corrosion
- Importance of deposit composition and metallurgical structure
- Comparison of different types of electroless nickel
Where to use the different types:
- Effect of different environments
Rules for use of metallic coatings for corrosion prevention:
- Twelve rules of dos and don'ts
- Effect of heat treatment on corrosion
- Effect of galvanic corrosion on other metals
Properties of Ni-B deposits:
- Low versus high boron deposits
- Physical and mechanical properties
- Hardness and wear properties
Specifications for electroless nickel coatings:
- New and existing specifications
- Their strengths and limitations
