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ADP Process
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The ADP process
begins with prepreg rolls, which
are sent to a heating and pressing
die, then a curing oven. From
there, the product enters a
pulling device. An edge-trimming
machine then cuts and trims
the item to the customer's specifications.
It then goes through a rigorous
testing phase with an automatic
ultrasonic flaw detector. The
result is highly reliable products
that meet the very precise specifications
of our customers.
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Comparison
of ADP to Traditional Pultrusion
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SHORTCOMINGS
OF TRADITIONAL PRODUCTION METHODS
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ADP
VS. TRADITIONAL PULTRUSION
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ADP
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Other
Pultrusion
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1.
Hand-lay-up Process:
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Labor intensive
- High cost
-Time-consuming, unstable
2.
Traditional Pultrusion:
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Insufficient performance for primary structure
use
- Low fiber/resin ratio
- Difficulty with control of fiber directions,
resin curing and secondary bonding
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Raw
material |
Prepreg
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Dry
fabric and resin
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Resin
system |
Epoxy,
Phenolic, etc.
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Epoxy,
Phenolic, etc.
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Max.
fiber content |
65%
in volume
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55%
in volume
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Min.
thickness |
0.4mm
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0.8mm
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Void
content |
Less
than 1%
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Less
than 3%
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Release
agent |
None
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Necessary
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Angular
tolerance |
+/-
1 degrees
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+/-
4 degrees
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Secondary
bonding |
Yes
(with peel ply)
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Difficult
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