Explosive Actuated Tools Flashcards
Powered load strengths can be identified by a numbering and Coloring systems which are there
One through six one being the lowest six being highest. Color starting at the lowest to highest is gray brown green yellow red and purple
Power loads are available in three primary calibers which are
.2 ,.25 , .27
What is the piece of plastic on the end of a Fastner used for
Centering it in the bore of the gun
What are the three types of fasteners
Drive pins, shredded studs, drive pin assemblies
Why is a drive pin Knurled
The knurling helps hold it into the workpiece
Tension load
A tension load applies forces to the Fastner perpendicular to the base material surface
Sheer load
Sheer load applies forces to the Fastner perpendicular to the fastener
Bending load
A sheer load forces is applied as a distance from the surface of the base material creating a lever type action on the fastener
What is Spauling
Is when the surface material around the fastener breaks free note this is acceptable
True or false do not fasten into precast concrete or prestressed concrete without permission from an engineer
True
Gen. recommendations include driving fasteners no closer than blank from the edge of the concrete and spacing fasteners at least blank apart
3 inches for both or 75 mm
What kind of steel is most suitable for explosive actuated fasteners
Mild steel
How is a explosive actuated tool Fastner held in steel
By compression and fusion
For effective Load strength Shank diameter should not exceed
Steel thickness
A general recommendation is to drive fasteners blank from the edge of steel and space fasteners blank apart regardless of diameter of shank
The general recommendation is to drive fasteners 15 mm half an inch from the edge of steel and space fasteners 50 mm 2 inches apart regardless of diameter of shank
