Cleaning (4) Flashcards
1
Q
What are the two questions you should ask before performing a cleaning operation?
A
- Will the method remove contaminants?
- Will it harm the part or impact serviceability?
2
Q
What to use when cleaning an Organic Contaminant (dirt, dust, solids)?
A
- Water
- Water and Soap
- Pressure washers or sprayers
3
Q
What to use when cleaning Oil and Grease?
A
- Solvents
- Soap and Water
- Steam
- Acids (pickling + etching)
4
Q
What to use when cleaning Buildup?
A
- Sanding
- Wire Brushes
- Scrapers
- Grinding and Filing
- Blasting
5
Q
Chemicals that are bad for cleaning and why
A
- Hydrogen or chlorine can cause cracking in materials containing nickel or stainless steel
- Phosphates and alkaline can cause corrosion in aluminium alloys
- Acids can cause corrosion (hydrogen-cracking)
6
Q
Types of Cleaners
A
Abrasive and Chemical
