TWI395199B - Method for manufacturing sounding element - Google Patents

Description

Method of manufacturing a sound element

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to the manufacture of sound producing components, and more particularly to a method of manufacturing a component that resonates on a musical instrument and an element in the acoustic device that is capable of withstanding or generating resonance.

The sounding element, such as the resonant structure of the instrument or the diaphragm of the speaker used in the sound, is determined by the material properties of the parts. The sounding element emits a loud sound that requires two characteristics: (1) low density; and (2) high elastic modulus. According to the physical relationship between the velocity ( c ) transmitted by the sound in the material and its density (ρ) and elastic modulus ( E ): c = ( E /ρ) ^1/2 , the lower the density of the material, the modulus of elasticity The higher the speed, the faster the sound is transmitted through the material. Therefore, the sounding element made of this material has a clear and loud sound in the air and a long transmission distance.

The problem, however, is that the materials that make the sound coming out of the sounding element clear and loud are very rare and expensive. For stringed instruments, for example, rare wood such as German spruce meets high quality standards; for wind instruments, for example, high-cost alloy technology must be used to improve sound quality; for loudspeaker diaphragms, for example, beryllium, gold must be used. Ultra-high-priced materials such as titanium and diamonds.

In the past, to solve the problem of high price of materials, there is a literature: New Phytol ., 2008, 179 , 1095-1104, which uses fungi to erode low-priced wood to change its sound quality, so that its low-cost wood can achieve the sound effect of high-priced wood. . In terms of the diaphragm of the speaker, the amount of diamond is minimized by the way of blending diamonds with silk. A disadvantage of this prior art is that product yields are difficult to control, whether it is fungal erosion or silk blending techniques. And still need to use high-priced diamonds, the cost-saving effect is limited.

For this reason, the applicant invented the case "a method of manufacturing a sounding element" in view of the lack of the prior art to improve the lack of the above-mentioned conventional means.

It is an object of the present invention to vary the modulus of elasticity of a lower priced material to be similar or equal to the properties of a high priced material. Further, the material is infiltrated into the base material through a material having a specific modulus of elasticity to change its modulus of elasticity. In addition, the density of the base material is changed by heating the base material so that the material for penetration protects the base material from heat cracking. And further greatly improve the sound quality of the sounding element. Moreover, the method of the invention is simple in process, high in yield, good in quality and extremely low in cost, and is very practical.

In order to achieve the above object, the present invention provides a method of manufacturing a sound emitting element comprising the steps of: placing the sound generating element at a specific gas pressure; heating the sound producing element in an inert gas atmosphere; adding steam to the atmosphere ; and remove the vapor.

The method as described above, wherein the step of adding steam to the atmosphere and removing the vapor is carried out repeatedly.

The method as described above, wherein the vapor is selected from the group consisting of inorganic matter and organic matter.

The method as described above, wherein after the removing of the vapor in the step, the method further comprises the steps of: adding an oxidizing or reducing gas to the atmosphere, and removing the oxidizing or reducing gas.

The method as described above, wherein the oxidizing gas is one selected from the group consisting of water vapor, oxygen, hydrogen peroxide, ozone and oxygen plasma; and the reducing gas is hydrogen.

The method as described above, wherein the step of adding a vapor in the atmosphere, removing the vapor, adding an oxidizing gas to the atmosphere, and removing the oxidizing gas is carried out repeatedly.

The method as described above, wherein the pressure of the oxidizing or reducing gas, the specific gas pressure, or the inert gas is 0.0001 to 10 atm.

In order to achieve the above objects, the present invention further provides a method of manufacturing a sound emitting element comprising the steps of: placing the sound generating element in an enclosed space; and adding a vapor to the enclosed space.

The method as described above further includes a step of removing the vapor. Further, the vapor is one selected from the group consisting of TDMAHf and trimethylaluminum.

The method as described above, wherein the pressure of the vapor is 0.0001 to 10 atm.

The method as described above, wherein the sounding element is further heated prior to the addition of the vapor.

The method as described above, wherein the optimum temperature for heating the sounding element is one hundred and fifty degrees Celsius.

The method as described above, wherein the heating of the sound emitting element is carried out in an atmosphere of an inert gas.

The method as described above, wherein the pressure of the inert gas is 0.0001 to 10 atm.

The method as described above, wherein the sounding element is a resonance plate selected from the group consisting of a resonator, a wind instrument body, a diaphragm of a speaker, a diaphragm of a percussion instrument, or a resonance tube.

A method of manufacturing a sounding element, comprising the steps of: placing the sounding element in an enclosed space; adding a first vapor to the enclosed space, and then removing; adding a first oxidizing gas to the enclosed space, Thereafter, it is excluded; a second vapor is added to the closed space, and then excluded; and a second oxidizing gas is added to the closed space, and then excluded.

Preferably, the removal from the first vapor to the second oxidizing gas is repeated several times.

Preferably, the first vapor, the second vapor, the first oxidizing or reducing gas, or the second oxidizing or reducing gas are mixed in a mixture.

In order to achieve the above object, the present invention further provides a method of manufacturing a sound emitting element, comprising the steps of: placing the sound emitting element in a space; introducing a first gas into the space; discharging the first gas; Injecting a second gas into the space; and discharging the second gas.

Preferably, the first gas is a mixture containing TDMAHf vapor and trimethylaluminum vapor, or pure TDMAHf vapor or trimethylaluminum vapor.

Preferably, the second gas is a mixture containing a high active gas, or a pure high active gas, and the high reactive gas is an oxidizing gas or a reducing gas.

Preferably, the space is heated before the first gas is added, and the space may be filled with an inert gas.

The following describes the embodiments of the method for manufacturing a sound element in the present invention, but the actual configuration and the method adopted do not necessarily completely conform to the described content, and the skilled person can not deviate from the actual spirit of the case. And in the case of scope, make various changes and modifications.

The method of the method of the invention firstly places a sounding element in a space; thereafter, a vapor is added to the space. If the addition of steam is only required once, the sounding element can be taken out after the addition. However, usually steam is added not only once, but it is usually necessary to remove the vapor from the space after the addition of the vapor. Usually one steam addition and removal is a cycle, and usually the completion of the manufacture of a sounding element, ie the improvement of the sounding element, usually takes several cycles, usually up to hundreds of times. The time to maintain the vapor in the space after the addition of the vapor can vary from a few seconds to several minutes. Of course, in order to prevent vapor leakage, this space is usually maintained in a closed state before the vapor is discharged after being added. The foregoing steps may refer to FIG. 1 as a schematic diagram of the steps of the present invention. In addition, please refer to FIG. 2, which is a schematic diagram of the device of the present invention. It is disclosed that a closed space 1 contains a sounding element 2, which may be a raw material, a finished product, or a semi-finished product. Further, an inlet 11 and an outlet 10 are provided in the closed space 1, the inlet 11 is for introducing the gas into the closed space 1, and the outlet 10 is for discharging the gas from the closed space 1. Of course, the function of the entrance and exit can sometimes be achieved by combining it with a single port. In order to maintain the closed state of the enclosed space 1, each of the inlets and outlets of course has a valve (not shown), but variations such as closed space and the like are common knowledge in the art, and will not be described herein.

Further, in order to increase the resistance of the sound-emitting element to temperature, the sound-emitting element is further heated before the addition of the above-mentioned vapor, and the preferred temperature for heating is 150 degrees Celsius. Further, in order to avoid oxidation caused by high temperature or to accelerate oxidation, the aforementioned heating step is carried out in an atmosphere filled with an inert gas to avoid any unnecessary oxidation generation. In addition, the pressure of the inert gas-filled environment ranges from 0.0001 to 10 atmospheres, and preferably about five thousandths of atmospheric pressure. As for the heating method, a resistive heater, an infrared heater, or a gas heated to a proper temperature can be directly introduced into the closed space, and the sound generating element can be heated by the hot air. In addition, the heater may alternatively be disposed in or outside the enclosed space to heat the sound emitting element through thermal radiation.

Further, the above vapor is one selected from the group consisting of TDMAHf (tetrakis (dimethylamido) hafnium) or trimethylaluminum. The pressure of the vapor is in the range of 0.0001 to 10 atmospheres, and preferably about 5/10,000 of the atmospheric pressure.

Through the above method, the characteristics of a sound element can be adjusted to a desired value. Of course, the sound generating component may be in a state after being processed by cutting, drilling, molding, welding, or the like, or a base material that has not undergone the above-mentioned processing procedure, that is, the base material of the unprocessed sounding component may be first The method of the invention improves the sound effect, and then manufactures the desired size through other processing procedures, or the base material can be processed first by cutting, drilling, molding, welding, etc. To the extent, the sound effect is improved by the method of the present invention, and then other processing is performed to make the characteristics of the sound element, such as the size, shape, and surface state, in a final state. As for the sounding element, it is, for example, a resonator plate (resonance plate), a wind instrument body, a diaphragm of a speaker, a diaphragm of a percussion instrument, or a resonance tube. The cymbal has a violin, a guitar, a huqin, a cymbal, a ukulele, etc. The percussion instrument has a drum, and the method of the present invention can improve the sound effect of the membrane of the drum, while other percussion instruments such as a xylophone and a xylophone, The invention can be processed for the iron piece and the wood piece itself, and can also be processed for the resonance tube under the body. As for the body of the wind instrument, it refers to the part other than the mouthpiece of the brass or woodwind instrument, while the wind instrument contains the bass, French, telescopic, trumpet, cornet, cymbal, clarinet, oboe (oboe ), bassoon (bassoon), saxophone, flute, Xiao and other brass and woodwind instruments.

Still further, a method of manufacturing a sound producing component of the present invention comprises the steps of: (1) placing the sound emitting element at a specific gas pressure; and (2) heating the sound producing element in an inert gas atmosphere; 3) adding steam to the atmosphere; and (4) removing the vapor. Please refer to FIG. 3, which is a schematic diagram of steps of an embodiment of the present invention.

Generally, the aforementioned specific gas pressure means the gas pressure of the inert gas, and is usually at 0.0001 to 10 atm. Preferably, it is maintained at an atmospheric pressure of five thousandths. In addition, steps (3) and (4) may be repeated multiple times, as shown by the dashed arrows in FIG. 3, and the repeated implementation of steps (3) through (4) may typically be performed hundreds or even hundreds of times. The vapor may be inorganic or organic, and the pressure is usually at 0.0001 to 10 atm, and the preferred value may be about 10,000 atmospheres.

In order to allow the sounding element to have a better acoustic effect, step (5) is further added to step (5) to add an oxidizing gas or a reducing gas; and step (6) to remove the oxidizing gas or reducing gas. As steps (3) and (4) can be repeated multiple times, steps (5) and (6) can be repeated multiple times, or hundreds of times. However, although steps (3) and (4) may be repeated a plurality of times, steps (5) and (6) are repeated a plurality of times. However, in many cases, after step (3) to step (6) are performed once, step (3) to step (6) are repeated. That is, step (3) to step (6) will be repeatedly executed multiple times. Further, as the oxidizing gas, it is selected from the group consisting of water vapor, oxygen, hydrogen peroxide, ozone, oxygen plasma, etc.; and the reducing gas is hydrogen gas or the like. The function of the step (5) is to further process the sound-emitting element to change its characteristics by the high activity of the above two gases. Related Description Referring to FIG. 4, it is a schematic diagram of another embodiment of the present invention. Steps (1) to (4) are the same as those shown in Fig. 3, but the above steps (5) and (6) are more. Since steps (3) through (6) may be repeated multiple times, a dashed arrow leads step (6) to step (3).

The vibrating resonance plate will be described below.

The first step is (1), placing a piece of Canadian maple wood into a closed space (cavity) with a volume of 0.02 m3, and filling the enclosed space with nitrogen, followed by a step ( 2), heated and maintained at 150 degrees Celsius, 0.005 atmospheres (atm). Next, in step (3), 0.0005 atmosphere of trimethylaluminum vapor is introduced into the above closed space, followed by step (4), and the trimethylaluminum vapor in the chamber is removed. Next, in step (5), 0.0005 atmospheres of water vapor is introduced into the chamber, followed by step (6) to remove water vapor in the enclosed space. Finally, repeat step (3) to step (6) one hundred times.

Typically, the state of step (2) is maintained for thirty minutes, while the vapor of step (3) is stored in the enclosed space for thirty seconds. The vapor of step (5) is also maintained in the enclosed space for thirty seconds.

The sounding element manufactured by the above method, that is, the violin resonance plate in this example, before the treatment by the method, the sound velocity before and after the resonance plate is 3,500 meters per second, and the sound velocity of the left and right sides is 700 millimeters per second. ruler. The resonant plate processed by the method of the present invention has a sound velocity of 7300 meters per second before and after, and a sound velocity of 3600 meters per second. It can be seen that the present invention is indeed useful for the speed of sound transmission, so that the sound in the air is clear and bright, and the transmission distance can be far.

In addition, the diaphragm of the speaker is taken as an example.

First, in step (1), a piece of film having a thickness of 0.01 cm and a diameter of 5 cm is placed in a closed space (cavity) having a volume of 0.001 m3 as a silk film of a speaker diaphragm. Filled with nitrogen, followed by step (2), heated and maintained at 120 degrees Celsius and 0.005 atmospheres (atm). Next, in step (3), 0.0005 atmosphere of tetrakis (dimethylamido) hafnium (TDMAHf) vapor is introduced into the above closed space, followed by step (4), and the TDMAHf vapor in the chamber is removed. Next, in step (5), 0.0005 atmospheres of water vapor is introduced into the chamber, followed by step (6) to remove water vapor in the enclosed space. Next, in step (7), 0.0005 atmosphere of trimethylaluminum vapor is introduced into the enclosed space, followed by step (8) to remove the trimethylaluminum vapor in the chamber. Following step (9), 0.0005 atmospheres of water vapor is passed into the chamber, followed by step (10) to remove water vapor from the chamber. Finally, repeat steps (3) to (10) one thousand times. In this example, the silk film has a thickness of 0.01 cm and a diameter of 5 cm of a circular silk film before the above process treatment.

Normally, the state of step (2) is maintained for 10 minutes, and the states of step (3), step (5), step (7), and step (9) are each maintained for five seconds. For the process and steps of the method of the present invention, please refer to FIG. 5 as a schematic diagram of another embodiment of the present invention. Since it is limited to the size of the drawing, FIG. 5 only names each step by abbreviations, and actually needs to be judged in the full meaning of the specification. First, step (1), placing the sounding element into a closed and filled atmosphere; followed by step (2), heating; step (3), introducing the first vapor; step (4), removing the first a vapor; a step (5), introducing a first oxidizing gas; a step (6), removing the first oxidizing gas, a step (7), introducing a second vapor; and a step (8), removing the second vapor Step (9), introducing a second oxidizing gas; finally, step (10), removing the second oxidizing gas. The above-mentioned first or second means the first use and the second use, or the first and the second, regardless of whether it is the same substance, so the first vapor and the second vapor may be For the same or different substances, the first oxidizing gas and the second oxidizing gas may be the same or different substances. Further, one or both of the first and second oxidizing gases may be replaced with a reducing gas.

The sound producing element manufactured by the above method, that is, the silk film as the speaker diaphragm in this example, has a sound velocity of 2,975 meters per second before being processed by the method, and the sound speed is reached after the method of the present invention is processed. The second is 8,571 meters. In terms of the figure of merit, the sound quality was 0.24 m ⁴ kg ^-1 sec ^-1 before being treated by the method, and the sound quality was 0.93 m ⁴ kg ^-1 sec ^-1 after being treated by the method of the present invention. It can be seen that the present invention is indeed useful for the speed of sound transmission, so that the sound in the air is clear and bright, and the transmission distance can be far.

It is worth noting that the above processing for the speaker diaphragm has two steps of adding steam and two steps of adding oxidizing gas. In detail, after the first vapor is added and removed, the first oxidizing gas is added and removed, and then the second vapor is added and removed, and the second time thereafter. The addition and removal of oxidizing gases. Therefore, the TDMAHf vapor can be said to be the first vapor, that is, the vapor used for the first time; and the trimethylaluminum vapor is the second vapor, that is, the vapor used for the second time. As for the first added water vapor, it is the first oxidizing gas, and the second added water vapor is called the second oxidizing gas. In addition, the cycle of adding and removing each gas is not limited to the above-described order, and may be performed by first circulating the first vapor, then performing the circulation of the second vapor, and finally performing a cycle of the high active gas, and if the last The high-activity gas is divided into two components, and the two can be mixed and added together and removed, or recycled in two steps. That is, in the case of FIG. 5, steps (3) and (4) are combined into one group, steps (5) and (6) are combined into one group, and steps (7) and (8) are combined into one group. Steps (9) and (10) are combined into one group, and the order of each group can be scheduled before and after, as the order after step (2) can be, step (3), step (4), step (7), Step (8), step (5), step (6), step (9), and step (10), it can be seen that the numbering of each step is only to distinguish the meaning of each step, and does not represent an absolute order. Similarly, other order combinations can be analogized, as the order after step (2) can be step (3), step (4), step (5), step (6), step (9), step (10), Step (7), step (8). However, in general, the sequence of steps substantially maintains the basic steps of the present invention by first placing a sounding element in an enclosed space and adding a vapor to the enclosed space. Step (2) is also usually preceded by the step of adding all relevant gases to the enclosed space.

As described above, the present invention utilizes the non-porous characteristics of the vapor and the diffusion effect of the gas, so that the entire sound-emitting element can be uniformly infiltrated, and therefore the method of the present invention has extremely high self-reproducibility and yield. Furthermore, since the parameters of the gas pressure, the heating temperature, the state maintenance time, and the amount of gas are relatively well controlled variables, precise control can be achieved to achieve the desired material properties (material density, elastic modulus, transmission). Changes in sound speed, sound quality, etc.). In addition, the organic vapor and inorganic vapor used in the present invention are very inexpensive, and the sound generating component to be processed by the present invention is originally a relatively inexpensive material, so that the finished product of the sound producing component manufactured by the present invention is also relatively inexpensive. . In addition, since the technology of gas delivery is very mature and simple, the production speed of the present invention can be very fast. That is, by the method of the present invention, the elastic modulus of the less expensive material can be changed to be similar or equivalent to the characteristics of the expensive material. In other words, the material is infiltrated into the base material through a material having a specific modulus of elasticity to change its modulus of elasticity. In addition, the density of the base material is changed by heating the base material so that the material for penetration protects the base material from heat cracking. And further greatly improve the sound quality of the sounding element. The method of the invention has the advantages of simple process, high yield, good quality and low cost, and is very practical. The invention has great contributions to the manufacturing technology of the sound element, the musical instrument industry and the sound industry.

The method for manufacturing a sound emitting component of the present invention, and the application for the invention patent according to the law; the technical content and technical features of the present invention have been disclosed as above, but those skilled in the art may still make various deviations based on the disclosure of the present invention. Replacement and modification of the inventive spirit of the present invention. Therefore, the scope of the present invention should be construed as being limited by the scope of the appended claims

1‧‧‧ space

10‧‧‧Export

11‧‧‧ Entrance

2‧‧‧ Sounding components

1 is a schematic view of a step of the present invention; FIG. 2 is a schematic view of a device according to an embodiment of the present invention; FIG. 3 is a schematic view of another embodiment of the present invention; A schematic diagram of another embodiment of the invention.

Claims (10)

A method of making a sounding element comprising the steps of: placing the sounding element at a specific gas pressure; heating the sounding element in an inert gas atmosphere; adding a vapor to the atmosphere; and removing the vapor. The method of claim 1, further comprising the steps of: adding an oxidizing or reducing gas to the atmosphere, and removing the oxidizing or reducing gas, wherein the oxidizing gas is selected from the group consisting of water vapor. One of oxygen, hydrogen peroxide, ozone and oxygen plasma, and the reducing gas is selected from hydrogen. The method of claim 2, wherein the pressure of the oxidizing or reducing gas is 0.0001 to 10 atmospheres. The method of claim 1, wherein the specific gas pressure is 0.0001 to 10 atmospheres. The method of claim 1, wherein the inert gas has a pressure of 0.0001 to 10 atmospheres. A method of making a sounding element comprising the steps of: placing the sounding element in a space; and adding a vapor to the space. The method of claim 6, wherein the vapor is one selected from the group consisting of TDMAHf and trimethylaluminum. The method of claim 6, wherein the vapor pressure is 0.0001 to 10 atmospheres. The method of claim 6, wherein the sounding element is further heated prior to the addition of the vapor, and the heating optimum temperature is one hundred and fifty degrees Celsius. The method of claim 9, wherein the heating step of the sound generating element is performed in an atmosphere of an inert gas.