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Parting
line projection is a continuous ridge of
material found at the seal’s parting line
on the O.D. and/or I.D. (see Figure
70). Excessive flash is
a thin, film-like formation extending beyond
the parting line projection. Parting line projection
can result when mold wear results in enlarged
corner radii.
Excessive flash can result from separation of
the mold plates
or improper (inadequate) trimming of
the seal following removal from its mold
cavity. (For maximum acceptable parting line
projection, see Table 34.)
QUALITY
ASSURANCE MAIN PAGE
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“Parting
line projection is a continuous ridge of material found at the seal’s
parting line.”
Figure
70
Table 34
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