Hand Tool Cleaning Flashcards
(19 cards)
Hand tool cleaning is a method to prepare steel surfaces using ___-___ hand tools.
Non powered hand tools.
Hand tool cleaning removes all ___ mill scale, rust, paint and other detrimental foreign matter.
Loose
___ mill scale, rust, and coatings cannot generally be removed by this process in a high production environment.
Adherent
Mill scale, rust, and paint are considered adherent if they cannot be removed by lifting with a ___ ___ ___.
Dull putty knife.
Standards dealing with hand tool cleaning are? These specify the use of a dully putty knife to determine whether or not contaminants are firmly adherent.
SSPC - SP 2
ISO St 2 and St 3
Tools used in hand cleaning are?
- Wire Brushes
- Scrapers
- Chisels
- Knives
- Chipping Hammers
The Standard for Hand tool Cleaning.
SSPC-SP 2 (Hand Tool Cleaning)
When hand tool cleaning operations commence, certain procedures are necessary:
- ___ the ___ to determine it’s condition.
- ___ or __ solvent/emulsion cleaning to remove contaminants. Remove heavy layers of rust by chipping.
- Clean the surface with any of the hand tools, then ___ prior to coating.
- Inspect
- Specify or Require
- Inspect
Hand tool cleaning is also called?
Manual Cleaning
Hand tool cleaning is the slowest and ___ ___ method of surface prep.
Least satisfactory
Hand tool cleaning is slow, ___ ___ and ___ with the end result still far from satisfactory.
Labor intensive and costly.
It is ___ ___ to remove all rust and mill scale with this method.
Practically impossible
A complicating factor to hand tool cleaning an be reluctance of labor to engage in ___ ___ ___.
Arduous manual tasks.
___ ___ and ___ ___ ___ can lead to significant increases in the cost of achieving a clean surface by these methods.
Slow progress and deteriorating labor relations.
Hand tools have the advantage of being ___ and not ___ ___ to operate.
Portable and not requiring power to operate.
Hand tools are most suited for use when 1___ ___ need to be prepared in the vicinity of other workers or when 2___ is difficult.
- Small areas.
2. Access
Use manual/hand tool cleaning only when ___ or some other factor precludes using a more efficient method.
Weather
Hand cleaning is one of the oldest methods of surface prep and is most often used when:
- ____ ___ equipment is unavailable.
- The work is ___ to power tools.
- The job is too small to warrant the use of ___ ___.
- Hand tool cleaning may be used extensively and with good effect when properly implemented in a ___ ___ ___. It may be fore effective when used in conjunction with power tool cleaning.
- Power Operated.
- Inaccessible
- Power tools.
- Maintenance painting Program.
Some of the things inspectors should consider are:
- The substrate condition ___ to ___.
- The solvent cleaning ___ to ___ ___ ___.
- The area where ___ ___ is required.
- The coating to be applied to the ___ ___.
- The ___ after hand tool cleaning is completed.
- The ___ ___ during cleaning and prior to coating.
- Prior to cleaning.
- Prior to Hand Tool Cleaning.
- The area where Hand Tooling is required.
- Existing surface.
- The edges after hand tool cleaning is completed.
- Ambient conditions.