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JPS5350726

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DESCRIPTION JPS5350726
Specification No. 1, Name of Invention
Method of manufacturing vibrator for acoustic converter
3. Detailed Description of the Invention The present invention relates to a speaker 41f for a
sound 41f such as a vibrator, a vibrating root for a microphone or a force / chiver for a record
player cartridge, and a main groove forming base of the vibrator. Method of manufacturing an i
moving body for nv attenuator by permeating and diffusing a material having a property
different from that of the substrate, and the ratio of Young's modulus E or 1 '1 Young's modulus
of 振動 to 比 of the vibrator material I'll do this. Conventionally, as materials used for the abovementioned vibrator vC1 history, aluminum, titanium, etc. are easily used in the HE9L processing
valley at high temperature. If the transmission body is a transmission gear, the material is used
from that material In particular, a specific vibration mode occurs in the whole of the 板 i plate,
and the frequency is 7% with a large loss in 4 areas [a large beak is a cause of a large beak, and it
is a positive one. The large # -t cantilever in front of the effect of the squeeze, the car
performance of the car IJ Noji It is confusing in the non- ′ ′ fermentation to reduce the
squeeze to the effect of the French egg thread necessary. That is, as the pipe thickness and
thickness are reduced in order to convert it into cantilever kmI, the l- + J property is reduced and
the characteristic is deteriorated. 0EndPage: 24.1 · r / F above characteristics all improve vr, i
juice, Young's modulus X and! The ratio 1c / ρ (hereinafter referred to as specific elastic
modulus) of the degree ρ can be performed by using a large material. Boron (boron) is a
material having a large relative continuity '4E / ρ. Although there are beryllium etc., it is difficult
to obtain boron (especially good quality) Beryllium (a large cost for pollution prevention
equipment in the d-type manufacturing process? I need. In addition, processing such as rolling
and pressing is difficult for boron and beryllium, and it takes a large amount of money to be
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formed into a predetermined shape, and the shape is also greatly limited. Therefore, the material
that is easy to process cedar into aluminum and titanium is molded into a predetermined shape,
and the molded product? As a substrate, it is conceivable to coat boron, beryllium or the like by
physical distillation or chemical means with a coating Japanese Patent Laid-Open No. 53-50726
(3), and it is possible to use a low dynamic or cantilever. By the way, it is desirable to heat the
substrate to 1000 or more in order to improve the properties of the cooking table by forming the
coating 1 on the substrate by physical vapor deposition-yif or chemical means. The thermal
expansion coefficient of the heat sink and the coating layer makes it difficult for the cooling iron
to be scooped out or to cause the coating layer to crack so that it can not be used for feces vciM.
Also, provide a coating such as IJ 17 um or 晦 A on the substrate by 看 and so on, and only this
coating layer?
6 from the base IJ Likumu rit + vibrator of elementary element '? Although it has been proposed
to make e-croppings, beryllium or vi 沁 1-based coatings made by means of spotty, etc. have high
mechanical strength and low mechanical strength, and n and kM. In order to form a coating layer
on a substrate by means of fc, etc., evaporation vessels such as electron beam heating are
required, and the cost of equipment is increased, and the time required for laying is also good. Q
Product cost Is much better. Therefore, a coating for acoustic conversion, #, is formed on a
substrate to be a vibrator for an acoustic transducer, and this is subjected to heat 1 to diffuse the
boron in the substrate and a search body for acoustic conversion 4 is proposed. However,
although the vibrator for an acoustic transducer according to this proposal makes it possible to
form 弘 on a substrate, this expansion forms 功 success 【ζ physical vapor or In order to form a
coating layer of a diffusion material that forms a diffusion layer on the body using ri chemical
means, the coating layer which becomes a diffusion layer is necessary because it requires
multiple facilities in the A process. In the case of materials which are very difficult to process as
in the first element, the coating layer formation time is long and the production cost is high, and
thus the production cost of the provided vibrator for an acoustic transducer becomes extremely
high. Nine. Therefore, the inventors have attempted to embed the titanium base in a soot powder
containing boron source and heat it to spread boron into the base to increase its Young's
modulus, but in this method the reaction time Because of its very long length, the efficiency is 穐
<, and even if treated in the order of 10 Torr, it becomes brittle due to oxidation and almost no
increase in Young's modulus is observed. The present invention has been made in view of the
point 1c, and its first object is to carry out permeation and diffusion in a carbon monoxide gas
atmosphere, and to prevent oxidation or degradation EndPage: 3 all occurring at the time of
heating It is an object of the present invention to provide a method of manufacturing a vibrator
for a sound 411 converter capable of obtaining a product having a high Young's modulus. The
second object of the present invention is to perform permeation and diffusion in an alkali saving
gas atmosphere 1III 4 atmosphere and to enhance the permeation and diffusion? It is an object
of the present invention to provide a method of manufacturing a second sound # 2-conversion +
iJ reflector. Next, an apparatus used for producing a vibrator for a sound 11 converter according
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to the present invention will be described with reference to FIG. 1 is a heat-resistant container 1
in FIG. 1 and a partition in which a large number of small holes 2IL formed on the inner surface
of the container 61 are formed. It comprises a plate 2 and a lid 3 which covers the opening of
each plate 61.
The heating vessel shown in Fig. 2 is a substrate B / special R1! , J53-5 (j726 (4), the container 1
for containing the mixed powder C described later, the gas introduction container 4 for
containing the mixed powder C, the opening of the refuse introduction pipe 5 connecting the two
containers 1 and 4 and the container 1.4 sVC is composed of 3 and 6 which can be blocked.
Next, to describe the substrate BK, the substrate B is formed by pressing a thin plate of titanium
or the like having a thickness of 15 .mu.m to 50 .mu.m, which is an inorganic integral material,
into a predetermined magnetic plate shape of a speaker or microphone, or A copying substrate 1
(a sliding plate in the drawing) formed by pressing a titanium pipe into the shape of a cantilever
of a cartridge for record reproduction, and a particle diameter of 0.8 to 1.2 μm on both surfaces
of the low movement substrate 70 A suspension of a footless boron such as acetone mixed with a
highly volatile living ffl solvent such as acetone to make a suspension, spray spray 1 brush 1
hand applied by JR 亨 7 贋 8 : I'm sorry. Mixed powder C is a mixture of alkali metal carbonate
with sodium carbonate and carbon black. The diffusion power method of the substrate B will be
described by using the heating container shown in FIG. First, mixed powder C is filled under
11111 VC under partition plate 2 in galvc, and then applied to vibrating base 71C coaty / go
station 8 ', and the next substrate is placed on top plate 1c of partition plate 2 in valley dJl, i & 3'
111- Put in the heating furnace. Then, the heat of 11 K is performed with about 10 Torr of heat
in the heating furnace. Is this heating temperature 9000-1300 m? : The degree is appropriate,
the diffusion is slower at a temperature lower than this temperature, and the substrate BI /)
deformation or saponification is severe at a temperature higher than this. The heating time is
suitably about 5 to 20 minutes, and the heating time can be shortened when the hot-seam
heating is high. Then, when the container 1 is heated, the gas generated by the reaction of the
mixed powder C, sodium aluminate and the car ン · n black is made into small holes 2ai; @ inside
the container 1 krA, and this gas promotes diffusion In the case of (1) VcJ), body oxidation is also
prevented. That is, sodium uric acid decomposes and is generated to promote diffusion IJ um gas
(alkaline gold-knitted kascon contributes, and for oxidation prevention, sodium uric acid and / 72
elementary react with sodium borate) It is Thus, the coating layer 8 is diffused in the atmosphere
where oxidation and diffusion are performed. Then, the heating is completed, and the inside of
the heating furnace is cooled, and after fc, the base B is taken out from the inside of the valley
box EndPage: 41.
The vibrator is completed by washing with water 1. The diaphragm is a titano material with a
Young's modulus of about 11,000 "y / rran", and the ivy has a Young's modulus of about 30, 000
"17 mm 2 It is possible to use the same method as described above, but in the case of this
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example, the waste generation valley 6i4 to which the mixed powder C is joined is divided into
the container 1 Since heating can be performed at a temperature different from that of the gas
generation a4 and No. 1 by heat treatment, the heat treatment is carried out separately for each
control tLJI! Although the above-described embodiment shows a sliding plate for a speaker as the
vibrating base T, this is a cantilever for a diaphragm for a microphone, a microphone or a
cartridge. Of course, it can be applied to the cantilever of a coat cutting machine '7' and so on,
'Yao coding box 8 may use only one side 11 and sodium carbonate and carbon black are used as
mixed powder C, but alkali Instead of sodium carbonate which is a metal base salt, for example,
mixed powder of carbon black, lithium carbonate, etc. and carbon black can obtain the same
action as that of No. 1 group, and a mixture of these alkali metal carbonates may be used. . In
addition to titanium nitride as a material of the eroding base 7, zirconium and yttrium are also
usable. Tantalum, tungsten or inclusions thereof are also suitable, but in particular yttrium and
zirconium have a low value (yttrium 4.47.91001 zirconium 6-4911 / CC) + #! ! The R point is
high and the processability is good, so it is suitable as the vibration base 1 0, vanadium, chrome.
Molybdenum, cobalt and nickel are also preferable, but vanadium is suitable because it is better
to use a nonmagnetic material as the bite base 1 in many cases. According to the manufacturing
method as described in the above 6th aspect, it is only necessary to distribute the boron of low
value to the vibrating substrate, so that the amount of boron used is small and it can be mounted
inexpensively and the gas released from the axon Since the amount is small, it is easy to keep the
air in the heating furnace at 10 Torr (nearly 10 ン, and there is almost no 仝 A). Even when
heated at high temperature, the substrate oxidation can be prevented well even if heated at high
temperature by 17O c mixed powder, and the diffusion of narrow cords is promoted by alkali
metal residue such as sodium residue, lithium residue and potassium gas. Thus, the heating time
can be shortened.
4. Brief description of the drawings. FIGS. 1 and 2 are respectively a striking diagram showing a
heating container used in the method for producing a sound V according to the present
invention. Mu: heating container, B: substrate. C ... (Kundai powder, 1 ... container. 2 ... partition
plate, 3, 6 ... lid. 4 ・ ・ ・ gas generation vessel, 5 ・ ・ ・ before gas introduction. 7 ···
Vibration base, 8 ··· Coating layer. EndPage: 5
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