Taber 5135 Operating Instructions Manual page 33

holder. Finish tightening the clamp plate and
nut, and finally tighten the clamp ring. Avoid
tightening to excess so as not to wrinkle the
specimen. Trim off any excess fabric around the
edges.
Figure 67
When it is desired to use abrasion test samples
for tests of other destructive agents such as
laundering, dry cleaning, and light, it is
recommended that the specimens be cut square
rather than round. The larger area of the square
provides for shrinkage in subsequent tests and
permits handling without touching the wear path.
Figure 68
•
Flexible materials are normally mounted on
the standard specimen holder with the
clamp ring. The E100-101 Specimen Clamp
will accommodate flexible materials up to
0.79 mm
(0.0312 inch)
Specimen Clamp will accommodate flexible
materials up to 1.59 mm
•
To generate useful data, specimens must
not be stretched or wrinkled. A Textile
Specimen Holder (E140-15) has a raised
wear track to give the fabric extra tension
when the ring is drawn down over the edge
of the holder and the clamp plate is drawn
thick. The E100-102
thick.
(0.625 inch)
32
down into the center recess.
•
To prevent stretching or wrinkling of the
specimen during testing, flexible materials
can be mounted to the S-36 or S-36-1
Mounting Card. To prevent the vacuum
from lifting the specimen, it is advised to use
the clamp ring.
•
To subject specimens to a wet abrasion test,
the Textile Holder, Tensioning Type for Wet
or Dry Testing (E140-18) can be used. This
holder is designed to give an initial stretch to
woven fabrics so that they may be tested
while moist with minimum tendency to
wrinkle. Alternatively, textile samples may
be adhered to a S-16 specimen plate. The
sample should be cut large and the corners
notched so that it will fold back over the
edges of the S-16 plate without build-up of
material. Take care to iron the folds at the
edges to form a flat, even testing surface.
•
A transparent table (E100-10) may be used
for viewing textile specimens against a
strong light to determine the worn condition
of the threads without removing the fabric
from the holder. The E100-10 can also be
used with a small, high intensity light bulb
located beneath the specimen holder which
activates a photocell and electronic relay to
turn off the Abraser when the established
wear point is reached.
Coatings
A coating that is representative of the coating
applied to actual product is required for
accurate, dependable results.
should be sprayed, drawn down or control-
dipped to achieve a uniform coating.
application is not recommended where precision
results are desired. Paints, lacquers, and similar
coatings can be applied directly to specimen
plates available from Taber Industries:
Steel (S-16) – S-16 plates (Figure 69) are
uniformly blanked from 20-gage auto body sheet
steel and dull finished for good adhesion of the
coating to the metal. The size is 100 mm
square with rounded corners and a 6.35 mm
center hole.
(0.25 inch)
Before applying the coating, S-16 plates must
NOTE:
be thoroughly cleansed of dirt, grease or other
contaminants. Use of a solvent degreaser or other
solvent cleaner capable of dissolving and removing oil,
grease and solid particles is suggested.
5135 / 5155 Operating Instructions ver 1.1
Test panels
Brush
(4 inch)