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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged sectional view showing an
embodiment of an electrode element of the conversion device of the present invention. 1 ииииии
Layer charged with nonpolar synthetic polymer substance, 2 иииии Electrode layer of nickelchromium alloy. ???????
[Detailed description of the invention] This invention relates to several layers of the electrode
element of the conversion device used for micro kyon et al. And other non-polar synthetic
polymer materials by applying an electric field to the layer 12 and charging the surface with a
nickel-chromium alloy deposited on the surface by vacuum deposition etc. The electrode element
of the converter comprising the electrode layer 2 of However, after heating a dielectric composed
of a nonpolar synthetic quotient molecular substance such as Kyoto O. O. 129 Kyo Rif 00 carbon,
it has been known conventionally to have an electric permanent polarization when charged by
applying an electric field, This was called an electret. When a nonpolar polymer substance of
such electret material is used as a conversion element, conventionally, a metal such as aluminum,
black iron, nickel or the like has been deposited as an electric rod layer. However, these electrode
materials have the following disadvantages, and all have been the cause of the reduction in
reliability as the conversion element or the shortening of the life. That is, aluminum is easily
oxidized in spring due to moisture, salt and so on, and other deterioration occurs, and peeling off
from the substrate does not take appropriate protective measures, and sensitivity decreases
when it is used for long time in the coast or humid place And other inconveniences. In the case of
black iron, the specific resistance is high compared to other metals, and at a temperature of
about 200'C at the time of producing the thermal electret, the specific resistance value is
remarkably increased to lower the function as an electrode. This is related to the seal r failure of
the conversion element ham. It causes noise and the like. Furthermore, in the case of leeks, sulfur
W! It is unstable with respect to gases and can not be used for a long time in a sulfurous
industrial area or an exhaust gas-rich urban area. The present invention uses the nickel fork 06
alloy as the electrode forming material to improve the above-mentioned problem. That is, in the
nickel nickel alloy, the specific resistance value of the alloy itself is lowered by the low specific
resistance value of nickel, and the heat resistance of the nickel alloy is compensated by the heat
resistance of nickel, and the heat resistance of the alloy itself is improved. The sulfur dioxide gas
resistance of chromium chromite compensates the sulfur dioxide gas resistance of nickel and
improves the sulfur dioxide gas resistance of the alloy itself, and the original alloy is never
affected by moisture and salt. Examples of the present invention will be described below in
comparison with conventional electrode materials. Conventional electrode (]-) (2) (3) electrode
material aluminum 9 chromium nickel electrode according to the present invention (4) (5) (6) (? )
(8) Electrode material N 113% 35% 50% 65g 85% Cr 85% 50% 35% 15% electret base 12 river
FEP electrode 0.5 n clearly for the above-mentioned sample moisture resistance test, salt spray
test, sulfur dioxide gas When a test, a heat resistance test, etc. were conducted, the results as
shown in Table 1, It were obtained.
As is clear from this result, for non-polar synthetic polymer substances such as FEP, electrodes
made of vapor-deposited nickel-nickel alloy come and go against moisture, salt and sulfite heat in
the atmosphere. It is clear that it is very stable compared to the electrode material of The
moisture resistance test of Table I, the salt spray test, and the sulfur dioxide gas test show the
area ratio of the remaining metal after the test, and the heat resistance test of Table H shows the
ratio of the initial value of the surface resistance measurement value and the test value. As
described above, when a conversion prism that uses a nickel alloy as an electrode is used as a
comb: / II + mic D kyong, electrode exfoliation due to moisture, salt, sulfur dioxide gas, heat, etc.,
and electrode resistance increase are not lost. It is possible to obtain the microphone 0 Kyeong
free from the reduction of sensitivity, hum, noise and the like. Humidity test salt spray test
sulfurization! efi2 test metal 4oc-9m-3 * -5% NaC1-9C $ -4days3daysq5) cg / crld4ress, -2daysz>,
s / 11, aluminum 5 sheets 2 pieces 100 pieces 2 pieces 0 pieces 100 100 1003, Nigg & 100 100
354 Ni: 15Cr: 85100 100 1005, Ni 135 Cr + 65 100 100 1006, Ni: 50 Cr: 50 100 100 100? , Ni:
65Cr: 35100 100]-008, Ni: 85Cr: 151oo 100 100 Table Heat resistance test (resistance value
change) Metal 200 'C-1 hr RtJ Initial value (A) Test diameter value (B) Change rate ? x 1001,]' j ,:
L: 40.5 flO, l'L 100% 2, 0410100b10'3, nickel 881004, Ni: 15Cr: 8525251005, Ni: 35Cr:
6523231006, Ni: 50Cr: 5020020100? , Ni: 65Cr: 3518181008, Ni: 85Cr: 151515100 (Injected
oat surface resistance l 111 If the method is JIS C 2316-8, 3, 5 according to 6 o 4, simple
drawing ii! FIG. 811IJ is an enlarged sectional view showing an embodiment of an electrode
element of the conversion device of the present invention. 1 ░░░ non-polar synthetic polymer
material charged layer 2 ░░░ nickel-black synthetic gold electrode clothes agent Kimura Kimi
body ?== i. 8i 230. Four
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