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JPS5060034

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DESCRIPTION JPS5060034
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a cross-sectional view of a diaphragm for
a skier of the present invention. 1 · · · · · · · · · · · · · · · · · · · Paint layer.
The present invention relates to a diaphragm for a speaker, which comprises a diaphragm base
material using carbon fibers or metal fibers of stiffness as a part of a sliding plate material, and
mica powder is added to this base material. The present invention relates to a diaphragm in
which a resin-based paint mixed therein is electrostatically coated to give an appropriate internal
loss. The speaker diaphragm should be lightweight so that it has high rigidity and a suitable
internal loss. However, as the recent trend is that the output of the amplifier is large, there are
four ideas (1) to try to reduce the distortion factor even if the efficiency of the speaker is
reduced. For this purpose, 9 typical shakes ** are made by putting together natural pulp and
finely grinding it to make a base of corn paper with a coating material, on which a ** paint is
available. However, even with this method, it is about 4XIO “14γ-” as a young army of the
vibro-par. Also, in this case, if the distribution of the paint is not uniform, a partial difference in
strength occurs in the diaphragm, which causes distortion. The present invention is intended to
remedy the above-mentioned drawbacks, and to provide a speaker loudspeaker plate having a
sufficiently large rigidity and an appropriate internal loss. Next, an example of the proposal will
be described. In this proposal, carbon fiber or metal fiber of about 5.5 microns in thickness is cut
into pieces of about 2 to 3 cm, mixed with natural pulp or synthetic fiber in a ratio of about 4: 1,
and formed into paper. This is a diaphragm made of Ilk cloth coated with mica powder,
polyurethane resin or the like as a base material to increase internal loss. The diaphragm base
made in this way has a suitable internal loss because it is rounded enough that carbon or metal
fibers are mixed, its rigidity (2) is sufficiently large, and contains mica powder. heart. In addition,
the base material has conductivity and core, electrostatic coating method can be used, so that the
paint can be uniformly applied, the yield of the paint is good, and the production can be
economically produced. I can / Q. Next, referring to an embodiment of the present invention, a
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1
carbon fiber of a thickness of 5.517 microns and a length of 2-3 is mixed with 80% (by X amount
ratio) of craft valve 20 rumor and polyurethane as a binder A diaphragm base material is made
by using a resin to form a diaphragm, to which a polyurethane resin-based paint is mixed with an
appropriate amount of mica powder, and a 911 fat paint is applied to make it. FIG. 1 is a crosssectional view of the speaker of the present invention, so (lj indicates a diaphragm substrate, (2)
Fi paint layer. In this proposal, as described above, 11-layer paint mixed with mica powder is
applied to a corn substrate made of a conductive fiber and a natural fiber or synthetic W, and a
carpet formed by forming a paper, and rounded. The rigidity of the diaphragm base material is
sufficiently large by using a fiber or the like, and (3) an appropriate internal loss can be obtained
by mica powder or the like.
(I: I) Since the diaphragm substrate is conductive, electrostatic shaking can be used, the
unevenness of the Ik package is small, and the imperial O-yield is stormy. And so on.
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