1.What's "ferrule"
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Any more, the communication means
which
optical fiber was used for is
not only for
the long-distance communication
such as some
of the telephone companies.
For example, it develops in the building
for making better use of LAN and the Internet.
In addition, it develops in the
short distance
in the family use, too.
It is expected to increase the demand for
the “patch code”, due to increasing the
communication in the short distance and the
number of circuits.
(“Patch code” is fixed a connector
on both
ends of the optical fiber) .
The main part of the optical fiber connector
is “ferrule”.
The connector of the optical fiber is required
the precision of the μm unit ,to restrain
the loss of the light to a minimum.
It is different from connector of electric
wiring.
The material of ferrule is used
zirconia
ceramic for the keeping of the
precision
quality.2. Importance of Blanks.
Of course, a progress in precision machine
processing is important to make the high
precision ferrule.
But, the precision of the blank before machine
processing, gives a big influence of yield
at final step, too.
As before, the blank was made by extrusion molding.
In the present, injection molding
which
PIM (powder injection molding)
was used
for is the main stream.3. Problem until now .
Recently, PIM technology is useful technology,
for example it is the production of the watch
parts by MIM.
But, it is difficult to make
the mold that
when the a high precision parts
like a ferrule
blanks made.
The problem was how to make a thin pin (about
φ0.150) and a thin hole.
But now, many manufacturers can already make
a thin pin.
The problem in production of mold is the
following point.
- The production of high precision mold parts.
- Keeping of the mold’s precision during
injection molding
- The design affected by the characteristic
of special compounds, used PIM
Without understanding the above ,only a pipe
with thin hole is made, a good ferrule blank
can't make it.
4. TAMMY’s molds and systems.
TAMMY’s molds are supplied to the leading
plastic makers which products ferrule blanks.
Because of that, TAMMY’s molds
is good
for the high precision mold,
which is maked
by the original way, and is affected
by the
characteristic of PIM.
This mold is accepted even if
a plastic
ferrule mold is taken.
The system base is mold, which is the biggest
factor (structure, production and blank design)
of the ferrule blank’s production.
Because of that,
- High precision = a few loss in the after
process
- The system adapt PIM = man-hour reduction,
high yield
Thus, it is possible high quality
and the
low cost on this system |
