TWI234761B - Quasi-ceramic musical instrument material and its manufacture - Google Patents

Abstract

The present invention relates to a manufacture of quasi-ceramic musical instrument material, which includes the steps of: using a extrusion molding method, an integral injection molding method, an engrave molding method or their combination to preform a musical instrument material selected from at least a light metal and a light metal alloy as a musical instrument substrate; then placing the preformed musical instrument substrate and an auxiliary electrode in a liquid environment; applying a voltage difference between the musical instrument substrate and the auxiliary electrode to generate an arc discharge on the surface of the musical instrument substrate, so as to gasify and ionize neighboring electrolyte by the discharged energy to produce plasma, thereby forming an oxidization film of the quasi-ceramic material on the surface of the musical instrument substrate.

Description

1234761 is also better; while the first 100-200HV) in the audio frequency welding nickel, the body lowers itself to stand on the front part of the flute, in addition to many other places, and the stainless steel products are all used in the body diagram. Degree, front place material, front steel, as far as possible to make the vibration system, the ninth fifth, description of the invention α) [Technical field to which the invention belongs]: The present invention relates to a musical instrument material and its preparation method, especially Regarding a ceramic-like musical instrument material and its manufacturing process. [Previous technology]: The traditional music silver, nickel, and stainless steel are upgraded to obtain faster response and higher transmission efficiency. In addition, from wooden musical instruments to gold and steel, platinum, etc. The better it is, and the resistance to heat expansion and contraction outside of sonic transmission can be described as the reason why the transmission efficiency of traditional musical instruments is not optimized. The traditional metal mentioned above may need to be heated and welded, and the stress is uneven, which makes the traditional gold and platinum or its alloy used in audio musical instruments to support the load in the small and light weight, but the product is small. Traditionally, traditional metal musical instruments are used as a background note. The 67th figure is a sectional view, and the figure is a side view of a button or a metal alloy, such as copper, and has been pursuing hardness. For example, the higher the hardness of the material, the less the loss, the better the efficiency, and the vibration force. The better, the hardness of audio stability is not high (about the resistance to thermal expansion and contraction, and alloy materials of musical instruments, which will cause welding and non-frequency transmission instability. Metal, such as copper, silver, volume Generally, it is very heavy, so the music exhibition is to reduce its weight, and it is relatively tedious to reduce the instrument. Here is the picture of the eighth part of the main part of the traditional flute, which is the key part. Section 6

Page 41234761 V. Description of the invention (2) Contains a key post plate (reb) 6 and a key post (post) 62, and a key hole 63. A pipe extractor must be used to draw the pipe body 6 on the garment, and the pipe extractor 6 To form the tone 6 4 ', and the key post plate 6 丨 is processed by a punch, and the key post 6 2 is formed by a lathe, and the key post hole 6 3 is formed. Finally, silver welding :, pillar 6 2 is welded and fixed to the key post plate 61, and then the welded key post 6 2 is welded to the key plate 61 and the pipe body 6 by soldering. The part of the button 7 includes a key arm 71, a sound cover f, a spoon 7Γ, a sleeve (/ 1Pe)? 3, a piece 74, a spring hook 75, and a molding m, and the sleeve 73 uses a pipe drawing machine To form :: Forging and trimming of the blade 74, after the addition of the bounce, the sleeve 7 3 and the key arm 7 丨, press, 7 \ hour μ are formed by silver welding, and the key 7 is completed. Of production. Welding with yellow hook 7 5 etc. From the above-mentioned production process of the tube body 6 and the key 7 ^, the manufacturing process is long, and the price of musical instruments is of course relatively increased. Its manufacturing process is very cumbersome. In addition, the materials of the conventional musical instruments are easy to shape. In addition, there are many welds, which will cause shrinkage and insufficient hardness. Therefore, it can be known that the musical instrument materials and processes are still unstable in frequency transmission. A kind of audio that is hard enough and good for audio delivery and room for improvement. The ceramic is cracked, and how to maintain the good characteristics of the ceramic are two materials, but it is easy to break. It can overcome the problems in the process. It is instinct and has good strength. [Contents of the invention]: > . The main purpose of this case is to solve the former musical instrument material and its preparation method. °] provide a kind of research

Page 5 1234761 V. Description of the invention (3) The feature of the present invention is mainly to provide a ceramic-like musical instrument, including a coating having a type of ceramic oxide film formed on the surface of a light metal or light metal alloy. Another feature of the present invention also includes a method for preparing a ceramic-like musical instrument material to obtain one of the above-mentioned types of ceramic musical instrument materials. The method includes: selecting at least one light metal or light metal alloy musical instrument substrate, and The auxiliary electrode is placed in a liquid environment of an electrolyte, and a potential difference is applied between the instrument substrate and the auxiliary electrode, so that an arc discharge is generated on the surface of the instrument substrate, and the energy released by it is vaporized and ionized nearby The electrolyte generates a plasma, and an oxide film is formed on the surface of the musical instrument substrate. [Embodiment] ... The following is a detailed description of the preferred embodiment of the present invention: The present invention mainly provides the preparation of a ceramic-like musical instrument material, which includes the following steps: selecting at least one light metal or light metal alloy musical instrument substrate, And at least one auxiliary electrode, place it in a liquid environment, and apply a potential difference between the instrument substrate and the auxiliary electrode, so that an arc discharge is generated on the surface of the instrument substrate, and the energy released by it is gasified and ionized nearby The electrolyte generates a plasma, and a ceramic-like oxide film is formed on the surface of the musical instrument substrate. In the method of this case, the plasma formed by the arc discharge generated on the surface of the musical instrument substrate causes the auxiliary electrode to be oxidized to generate a completely different oxide film coating-like ceramics than the traditional anodizing process, and the high temperature causes the coating film to melt, and Change the membrane porosity and its microstructure. The aforementioned musical instrument substrate of the present invention may be selected from Shao, Shao alloy, 鎭,

1234761

V. Description of the invention (4) Magnesium alloy, titanium, titanium alloy, tungsten, samarium alloy, cadmium, cadmium alloy, etc. The methods of forming and processing musical instrument substrates are generally as follows: 1. Extrusion molding method. Using a set of extrusion molds, the material is extruded by a pressing device, and / or reprocessed into a preformed shape. . ^ Particularly suitable for aluminum, magnesium or alloy materials. /. The following is a reference to the comparison between the method of this method and Xi You's process, using the flute as an example. The second image is a perspective view of the flute official body after extrusion molding and processed by the CM factory according to the method of the present invention, and the first image is a perspective view of the rough embryo of the flute tube body after extrusion molding but without secondary processing. . Among them, the pipe body 1 of the flute extruded shape includes two pillars, such as a key post, a key post plate, 12 and a key post hole. The entire shape of 1 (see the second picture), its production speed is very fast. In addition, the third figure is a three-dimensional view of the flute button prototype after extrusion molding using the method of the present invention, but without primary processing, and the fourth figure is extrusion molding using the method of the present invention and secondary processing, A perspective view of CNW after work. The shape of the key 2 as shown in the third figure formed according to this method already includes the shape of the sleeve 2 and the key arm 22 and the sound cover 23. As long as it is processed by the CNC twice, it can be completed. The molding of the button 2 shown in the fourth figure is very fast. 2 · Injection molding method: This method mainly melts materials such as aluminum, aluminum alloy, magnesium or magnesium alloy, etc., and injection molding with molds and injection molding equipment, which can complete a predetermined shape of the musical instrument substrate, such as the second picture or The shape of the sub-tube body and the flute button shown in the fourth figure can be integrally formed by the injection molding method, without any other processing procedures.

Page1234761 V. Description of the invention (5) 3. Engraved into magnesium, titanium ... or its key post 1 1, key post 22, sleeve 2 and the shape of the keys and the tools of the tool and the other three above. The aforementioned pure water is better. It is better to add some compounds to the liquid. When the musical instrument is based on acid salt, when the musical instrument base liquid is added with the compound of the film. This case is complementary to the reaction, so almost Refer to the fifth layer of the oxide oxide pottery layer method: the original alloy plate and other materials, such as the key post sound cover 23 and the like. Use, sculpting tools. Forming of the substrate Suitable method Liquid environment choice. In addition, some moderate additions, such as: material selection of aluminum to become a low-concentration material selection of magnesium phosphate or sulfur method, the main material of musical instruments, such as aluminum, after engraving, such as pipe body 1 and its hole 1 3, sound hole 1 4. The key 2 and its key arm body are carved as shown in Figure 2 and Figure 4. The flute is CNC, wire cutting, and metal processing. It can be used according to the shape of the pre-formed instrument or a mixture of two or more methods. The most important is the environment of aqueous solution. In particular, in order to change the conductivity of the liquid, you can add agents or passivants, or when you add or aluminum alloy material, you can add an appropriate amount of alkaline silicate solution. Or magnesium alloy material, it can be co-oxidized to form Mg-AL-0 in the liquid solvate and the town. The auxiliary electrode system is made of stainless steel, which is generally placed on the anode. When the current is supplied in and out, the Faraday solution of the solution is not lost. The generation. As shown in the figure, the film covering layer 31 on the surface of the musical instrument substrate 3 by the aforementioned method includes at least a first layer of highly porous oxide ceramic layer.

1234761 V. Description of the invention (6) 3 1 1, the second layer of low density porous oxide ceramic layer (s 1 i g h 11 y porous oxide ceramic layer) 312, and the third layer of barrier layer (Barrier layer) 313. The structure of the first layer has high porosity and low hardness, which is suitable for painting; the second layer has high density, even reaches zero porosity, has high hardness and corrosion resistance, and its hardness is about 500-2000HV; and the third layer It belongs to the diffusion layer. The musical instrument material made of ceramic materials such as this method has very high hardness, good resistance to thermal expansion and contraction, low loss of sound wave transmission, high vibration efficiency and audio stability; coupled with the use of light metal itself, the weight is very high Light, under the same weight condition, its volume can be increased to increase the resonance volume of the instrument itself to obtain better resonance effect. In addition, ceramic instruments made by this method can obtain a good and wide sound range. which performed. The musical instrument or its accessories prepared by this method includes, for example, various flutes, such as piccolo, flute, recorder, clarinet (clarine), oboe, bassoon and mouthpiece, saxophone and mouthpiece, Xiao La 0 eight and its mouthpiece, piano keys, hammer body, tone piano, violin, sound la σ eight diaphragm, speakers ... and so on. The above embodiment is only one description of the present invention. When the patent scope of the present invention cannot be limited in this way, that is, all equivalent changes and modifications made according to the scope of the patent application of the present invention shall still be covered by the patent of the present invention. Within range

1234761 Brief description of the diagram. The first picture: is a perspective view of the crude embryo of the flute pipe body after the extrusion process of the method of the present invention but without secondary processing. 3D perspective view of the pipe part of the flute after processing. ○ 2: It is a perspective view of a rough key of a flute button after the extrusion molding process of the method of the present invention but without secondary processing. A perspective view of a flute button after the extrusion molding process and after secondary processing. Fifth image: a sectional view of an oxide film formed on the surface of a musical instrument substrate according to the method of the present invention. Partial perspective view. The seventh figure is a cross-sectional view of the sixth figure. The eighth figure is a key of a traditional flute. Surface view 〇 Ninth view: Section 8 of the eighth view 〇 Explanation of drawing number

1 1) Key post (1 4) Sound hole (21) Casing (23) Sound cover (

1) Tube body (2) Keys (3) Musical instrument base (2 2) Key arm (12) Key post plate 13) Key post hole 31) Oxide film coating 3 1 3) Grid layer 3 1 1) High density porous Ceramic oxide layer 3 1 2) Low density porous oxide ceramic layer

Page 10

Claims (1)

1234761 VI. Scope of patent application 1. Preparation of a ceramic-like musical instrument material, including the following steps: Select at least one light metal or light metal alloy musical instrument substrate, and an auxiliary electrode, place it in a liquid environment, and A potential difference is applied between the material and the auxiliary electrode, which causes an arc discharge on the surface of the musical instrument substrate, and the energy released by it releases and ionizes the nearby electrolyte to generate a plasma, thereby forming a layer of ceramic-like oxidation on the surface of the musical instrument substrate. Film person. 2. For the preparation of ceramic musical instruments as described in item 1 of the scope of patent application, the liquid in the steps includes water or pure water. 3. For the preparation of a ceramic material as described in item 1 of the patent application scope, a further method is to add an additive or a passivating agent to the liquid to change the conductivity of the liquid. 4. The preparation of a ceramic musical instrument material as described in item 1 of the patent application scope, wherein the musical instrument substrate is selected from the group consisting of aluminum, magnesium, titanium, zirconium, cadmium, Mingzheng alloy, Shao alloy, samarium alloy, titanium alloy. 5. According to the preparation of one of the types of ceramic musical instrument materials described in item 4 of the patent application scope, the further method is to use the extrusion molding method to make a prototype of a musical instrument substrate, and then process it into a predetermined musical instrument substrate. Shapers. 6. The method for the preparation of a ceramic material made of ceramics as described in item 5 of the scope of the patent application is to use the CNC for secondary processing. 7. The preparation of one of the types of ceramic musical instruments as described in item 4 of the scope of patent application, which further includes a method of integrally molding the shape of the musical instrument base material. 8. The preparation of a ceramic musical instrument as described in item 4 of the scope of patent application, which further comprises forming the musical instrument base material by engraving. 1234761 6. Scope of patent application 9. The method of preparing ceramic musical instruments as described in item 8 of the scope of the patent application, the method is to use CNC or / and wire cutting for carving. 10. The method for preparing a kind of ceramic musical instrument material as described in item 1 of the scope of patent application, the method further includes making a prototype of a musical instrument base material by extrusion molding, and then further processing it into a predetermined musical instrument base material. Of the shape. 11. According to the patent application scope No. 10, the preparation of a kind of ceramic music equipment, a further method is the use of CNC for secondary processing and molding. 12. The method for preparing a kind of ceramic musical instrument material as described in item 1 of the scope of the patent application, the method further includes forming the shape of the musical instrument base material by integral injection. 1 3. The method for preparing a kind of ceramic musical instrument material as described in item 1 of the scope of the patent application, further comprising engraving the shape of the musical instrument base material. 14. The further method for the preparation of a ceramic material made of ceramics as described in item 13 of the scope of patent application is to use CNC or / and wire cutting to perform engraving. 1 5. The preparation of a kind of ceramic musical instrument material as described in item 1 of the scope of the patent application, wherein the method further comprises that the musical instrument substrate is selected from magnesium or magnesium alloy, and the steps of the method are added in a liquid solution. The phosphate or sulfate of aluminum is co-oxidized with magnesium to form a coating of Mg-AL-O compound, and due to the effect of high-activity plasma generated by arc discharge and high temperature, magnesium or magnesium Page 12 1234761 VI. Scope of patent application An oxide film with a ceramic structure is formed on the alloy surface. 16. The preparation of a kind of ceramic musical instrument material as described in item 1 of the scope of patent application, wherein the musical instrument substrate is selected from aluminum or aluminum alloy, and its liquid solution is a low-concentration alkaline silicate solution By. 1 7. The preparation of a kind of ceramic musical instrument material as described in item 1 of the scope of the patent application, wherein the oxide film of ceramic material formed on the surface of the musical instrument substrate after the method includes at least the upper layer of high-density porous A highly porous oxide ceramic layer, a second layer of a lowly porous oxide ceramic layer, and a third layer of a barrier layer ° 1 8. — — The preparation of various types of ceramic musical instrument materials includes the following steps: Pre-forming into a musical instrument a musical instrument material selected from at least one light metal or light metal alloy by using extrusion molding or integral injection molding or engraving molding or a hybrid method thereof. Substrate, and then placing the pre-formed musical instrument substrate and an auxiliary electrode in a liquid environment, and applying a potential difference between the musical instrument substrate and the auxiliary electrode, so that an arc discharge is generated on the surface of the musical instrument substrate and released by the same The energy is vaporized and ionized in the nearby electrolyte to generate plasma, and a layer of ceramic-like oxide film is formed on the surface of the instrument substrate. 19. In the preparation of a ceramic material made of ceramics as described in item 18 of the scope of the patent application, the liquid in the step includes water or pure water. 20. According to the method for preparing a ceramic material of one of the types described in item 18 of the patent application scope, a further method is to add an additive or a passivating agent to the liquid to change the conductivity of the liquid. Page 131234761 6. Application for Patent Scope 2 1. Preparation of a kind of ceramic musical instrument material as described in item 18 of the scope of application for patent, wherein the instrument substrate is selected from aluminum, magnesium, titanium, thallium, cadmium, Mingzheng alloy: is alloy, samarium alloy, titanium alloy. 2 2. The method for preparing a kind of ceramic material made of ceramics as described in item 18 of the scope of patent application, the method further comprises subjecting the musical instrument base material to secondary processing with CN or / and wire cutting. 2 3. The method for preparing a ceramic musical instrument material as described in item 18 of the scope of patent application, wherein the method further comprises that the musical instrument base material is selected from magnesium or magnesium alloy, and the steps of the method are further in a liquid The aluminum phosphate or sulfate is added to the solution to co-oxidize with magnesium to form a coating of Mg-AL-O compound. The high-activity plasma generated by arc discharge and the effect of high temperature make the surface of magnesium or magnesium alloy form a ceramic. Structure of an oxide film. 24. The preparation of a kind of ceramic musical instrument material as described in item 18 of the scope of patent application, wherein the musical instrument base material is selected from aluminum or aluminum alloy, and the liquid solution thereof is selected from low concentration alkaline silicic acid. Those in salt solution. 25. The preparation of a musical instrument material of ceramic material as described in item 18 of the scope of the patent application, wherein the oxide film of ceramic material formed on the surface of the musical instrument substrate through the method includes at least the highest density of the upper layer Porous oxide ceramic layer (highly porous oxide ceramic layer), the second layer of low density porous oxide ceramic layer (slightly porous oxide ceramic layer), and the third layer (Barrier layer) 〇 2 6. —A variety of ceramic materials for musical instruments, including those with a coating that forms a type of ceramic oxide film on the surface of a light metal or light metal alloy. Page 141234761 VI. Patent Application Range 27. The material of a ceramic musical instrument as described in item 26 of the patent application scope, wherein the metal or metal combination is selected from the group consisting of Ming, Zhen, Titanium, Recording, Editing , Ming Zhen alloy, Ming alloy, town alloy, titanium alloy. 2 8. According to one of the types of ceramic materials for musical instruments described in item 26 of the scope of patent application, the coating of the oxide film includes at least the uppermost layer of highly dense oxide ceramic 1 ayer. ), A low density porous oxide ceramic layer of the second layer, and a barrier layer of the third layer. 2 9. The preparation of one kind of ceramic material musical instrument material as described in item 1 of the scope of patent application, wherein the hardness of the oxide film of this type of ceramic material is between 500-2000Hv ° 3 0. As described in item 18 of the scope of patent application Preparation of a kind of ceramic musical instrument material, in which the hardness of the oxide film of the ceramic material is between 500-2000Hv ° 3 1. The material of a musical instrument of a ceramic material as described in item 26 of the patent application scope, in which The hardness of the ceramic oxide film coating is 500-2000HV. Page 15