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JPS5533338

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DESCRIPTION JPS5533338
Description 1, title of the invention
Boroned diaphragm
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement
of a poronized diaphragm that is suitable for a speaker. Since a boronated diaphragm is
manufactured by impregnating a boron layer on the surface of a base metal, for example, a
titanium material, it is necessary to bring it to a high temperature (about 1000 ° C.) close to the
deterioration temperature of the base metal in the manufacturing process. There is. Therefore,
the surface of the completed diaphragm is completely dry and degreased. Therefore, if the
vibration tiK is touched with bare hands as it is, the fat component easily adheres to the
diaphragm to cause fingerprint-like stains. Since this stain can not be easily removed with a
general fat decomposition agent (solvent), etc., there is a measure to prevent workers from
wearing gloves or maintain the air conditioning equipment, fc. Both are difficult to remove
completely. On the other hand, it is obvious that if this stain is not removed, the aesthetic feeling
of the diaphragm itself is reduced and the quality is reduced. In view of the above points, the
present invention is directed to a method of easily removing dirt attached to the surface of a
boronated diaphragm by coating the surface of the boronated diaphragm. Hereinafter, an
embodiment of the present invention will be described with reference to the drawings with
reference to the EndPage: 1, the figure shows a longitudinal cross-sectional view of the surface of
the cone-shaped boronated diaphragm 10, that is, the coating layer 2 formed of a coating ink on
the inner and outer surfaces. It is a front view. The coating agent is preferably, for example, an
acrylic clear solution or a two Tsuka solution. The coating time varies depending on the
manufacturing process of the speaker system which uses the boronated diaphragm, but after the
high temperature processing of the boronated diaphragm, the voice coil is applied when the
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voice coil is adhered by hand. It is necessary to carry out a coating process before the process.
The bonding operation between the boronation diaphragm and the voice coil is performed by its
own m machine, but when the assembly to the speaker system is performed manually, it is
necessary to perform the coating process before the assembly process. In the past, if the process
up to the speaker system is completely automated, it is also possible to perform the coating
process after the completion of the speaker system. The coating process may be performed only
on the surface of the diaphragm that is prone to contamination, and does not necessarily have to
be across the entire inner and outer surfaces of the diaphragm. It is not necessary to apply a
coating process to a portion of the diaphragm that is less likely to cause contamination. This is to
reduce the amount of coating material waste and the number of coating processing steps. As
described above, according to the present invention, since a coating treatment is applied to a part
or the entire surface of the boronated diaphragm with a coating agent, it is possible for a worker
to inadvertently deposit dirt on the surface of the boronated diaphragm. Can also be removed
soon.
General metal! In the case of & i's moving plates (eg, aluminum, titanium, copper, beryllium), the
coating should be relatively easy to remove deposits, even if the aforementioned fat deposits are
apparent, and the solvent can remove deposits relatively easily. The effect of the present
invention is great, although it is not important, but since it is found by experiments that
contamination with fats is difficult to remove due to the high temperature treatment with the
Poronized diaphragm. Further, according to the present invention, since the coating process is
performed, even when the user of the finished speaker product or the speaker system
inadvertently touches the poronized diaphragm, the dirt can be easily removed immediately.
Further, if the coating process is performed, no dirt is left on the surface of the diaphragm, the
aesthetics of the diaphragm can be maintained, and the quality can be improved.
4 and a simple explanatory drawing of the drawings is a longitudinal sectional view showing an
example of the diaphragm of the present invention. 11 ...... cone type boron of the diaphragm 2
...... Coach ink layer applicant Pioneer Corporation EndPage: 2
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