CN1018960B - Music bow and its producing method - Google Patents
Music bow and its producing methodInfo
- Publication number
- CN1018960B CN1018960B CN 87102415 CN87102415A CN1018960B CN 1018960 B CN1018960 B CN 1018960B CN 87102415 CN87102415 CN 87102415 CN 87102415 A CN87102415 A CN 87102415A CN 1018960 B CN1018960 B CN 1018960B
- Authority
- CN
- China
- Prior art keywords
- music
- bow
- cloth
- core bars
- fibre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The present invention relates to a method for manufacturing music bows, particularly to a method for manufacturing music bows of stringed instruments by hollow laminating materials, which has the steps: coiling fiber products immersed in thermosetting resin on prefabricated core bars; then, shaping the prefabricated core bars in a mould by hot pressing; finally, taking out the shaped prefabricated core bars and drawing away the core bars. The present invention is characterized in that the fiber products are fiber cloth and fiber threads, and the cloth layers are alternated with the thread layers after the steps of immersion and coiling. A music bow manufactured by the method has the advantages of uniform structure, continuous laminating, favorable combination properties and excellent use effect.
Description
The invention belongs to the manufacture method of the music bow and its of a kind of music bow and its of stringed musical instrument, particularly hollow laminated material.
Traditional stringed musical instrument music bow and its is wooden solid construction mostly, and the bent body of wooden structure makes trouble, and yield rate is low, influences the stable of production in enormous quantities and quality; Present existing non-wooden structure is opened as described in the clear 59-152493 as the spy, and is laminated into type in die with the laminated material that carbon fiber is strengthened, the general goal of bent body presses the many little places of the number of plies then few, this is difficult the grasp on making, and presses layer continuity and whole lack of homogeneity, can influence result of use.
The purpose of this invention is to provide a kind of hollow music bow and its manufacture method that constitutes with laminated material, prepared music bow and its is whole evenly, press layer continuously, good combination property, result of use be preferable.
The present invention is achieved in that a kind of manufacture method of music bow and its, thermoset resin on it comprises the steps: evenly to flood on fibre, dip process is to the fibre gluing, and make glue enter the fibr tissue inner width and gel content even, carry out dried then, desolvate to remove, moisture content and volatile matter, make the further polymerization of resin.The fibre that flooded thermoset resin is wound on gives on the coremaking rod, because plug can be made according to the respective shapes of bent body, so the whole bent body of the number of plies that impregnated fibre is reeled on plug is identical, and do not need the how little place of the general goal number of plies number of plies few, this just reaches, and whole bent body thickness is even, every layer of fibre object is all continuous, and result of use is preferable.Owing to be hollow-core construction, can keep under the constant situation of profile, reach the weight requirement by regulating thickness.The whole coiling body in back of reeling is put into the bent body pattern and is carried out thermocompression forming, behind resin solidification, can open mould and take out, and takes out just to become bent body after giving the coremaking rod.The invention is characterized in that fibre is fiber cloth and two kinds of forms of single, after they flooded thermoset resin respectively, be wound on together and give on the coremaking rod, and make the coiling back sees it is between this layer of cloth and this line layer homogeneous phase from xsect.Wherein fiber cloth is the necessary material of laminated product, but occasion in this thin-walled of music bow and its and large span, simple its bending resistance of layer of cloth is lower, and directionality is better behind the alternate wired layer, bending resistance is stronger, the single distribution mode of line layer should be vertically or tend to vertically that what is called vertically is meant the bent body length direction certainly certainly.The used fibre of the present invention preferably adopts fiberglass products, and thermoset resin preferably adopts epoxy phenolics.
Below in conjunction with a kind of scheme of the present invention the present invention is done more specifically to describe.
Glass fabric and glass fiber were flooded epoxy phenolics respectively, and dip process becomes two kinds of lamellar materials at last through gluing, extruding, drying.The composition of epoxy phenolics is: 40～80% phenolics, 60～20% epoxy resin, an amount of triethanolamine and alcohol, the summation of each component is that the above percentage of 100%(is percent by weight).The sheeting of silk is folded on the sheeting of cloth, be wound on together then and give on the coremaking rod, the coiling number of plies can be decided as required, sees the thin slice of the alternate one deck cloth of thin slice that is one deck silk like this from the xsect of coiling body.Whole coiling body is put into the bent body pattern carry out thermocompression forming, pressure is in 4～9 kilograms per centimeter
2, temperature is at 150～180 ℃.Behind resin solidification, can open mould and take out, extraction is given the coremaking rod and is just become bent body.
Claims (3)
1, a kind of manufacture method of music bow and its, it comprises the steps: the fibre that flooded thermoset resin by even, be wound on the plug of the system of giving, then whole coiling body is put into the bent body pattern and carry out thermocompression forming, after thermosetting resin cured, Qi Mo takes out and takes out the coring rod, just become music bow and its, the invention is characterized in that fibre is fiber cloth and two kinds of forms of single, they flooded thermoset resin respectively, dip process is through gluing, extruding, dry, become two kinds of lamellar materials, the line direction is got roughly vertically the single material of (length of bow's direction) and is wound on fiber cloth material and gives on the coremaking rod then, and make reel the back from xsect see be this layer of cloth and this line layer homogeneous phase with.
2, by the described method of claim 1, it is characterized in that wherein said thermoset resin is an epoxy phenolics.
3, by the described method of claim 2, it is characterized in that wherein the composition of said epoxy phenolics is:
Phenolics 40～80%
Epoxy resin 60～20%
Triethanolamine and alcohol are an amount of
The summation of each component is 100%, and above percentage is percent by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102415 CN1018960B (en) | 1987-03-26 | 1987-03-26 | Music bow and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102415 CN1018960B (en) | 1987-03-26 | 1987-03-26 | Music bow and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87102415A CN87102415A (en) | 1988-01-13 |
| CN1018960B true CN1018960B (en) | 1992-11-04 |
Family
ID=4813951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87102415 Expired CN1018960B (en) | 1987-03-26 | 1987-03-26 | Music bow and its producing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018960B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004058416A (en) * | 2002-07-26 | 2004-02-26 | Yamaha Corp | Manufacturing method for woody material for musical instrument, woody material for musical instrument obtained by the method, and musical instrument using the same |
| WO2012090145A1 (en) * | 2010-12-28 | 2012-07-05 | Hellinge Andreas | Elements to improve the sound quality of stringed musical instruments |
| CN109986647A (en) * | 2018-01-03 | 2019-07-09 | 宁波江丰电子材料股份有限公司 | The processing method and drilling tool of carbon fibre reinforced plastic |
-
1987
- 1987-03-26 CN CN 87102415 patent/CN1018960B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN87102415A (en) | 1988-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |