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Preparation method of guitar material

A guitar and sheet technology, applied in the field of guitar material preparation, can solve problems such as large differences in acoustic effects, long production cycle, complex production process, etc., and achieve the effects of excellent bending resistance, shortened growth cycle, and optimized working environment.

Active Publication Date: 2021-02-12
GUIZHOU ZHENAN NATASHA MUSICAL INSTR MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also some problems in the acoustic guitar itself: 1. Most of the components of the acoustic guitar are made of wood. Due to the slow growth cycle of trees, the growth of trees cannot meet the needs of the market, thus restricting the development of enterprises and excessive felling of trees also cause damage to the environment
2. The production process of guitars made of wood is relatively complicated. The production cycle of ordinary guitars is about 1 month. Among them, the guitar painting process needs to be repeated more than 10 times and it takes more than 20 days. The production cycle of high-end products It takes more than 3 months, and the painting process is more complicated
The harmful substances in the painting process are likely to cause harm to the human body.
Moreover, guitars made of wood also need to be edged, polished, polished, etc., and the production cycle is relatively long.
3. The wood itself is easy to expand with heat and contract with cold, so the acoustic guitar cannot be used in extreme environments, and it is easy to crack in a dry environment, and it is prone to bulges in a humid environment
Moreover, in a humid environment, the acoustic effect of the wooden guitar will change after the wood absorbs water, and the sound will be dull.
4. The surface of the acoustic guitar is easy to leave marks after being scratched, it is not easy to clean the surface after it is polluted, and it is easy to leave scars after burning the cigarette butt
Due to the many disadvantages of wooden guitars, people have been looking for a new material to replace wood. For example, some people try to use carbon fiber to make guitars, but the acoustic effect of guitars made of carbon fibers is much different from that of wooden guitars. big, people can't take it

Method used

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Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1 of the present invention: a kind of preparation method of guitar material comprises the following steps:

[0029] A. The wood fiber is made into a 280g / ㎡ sheet by roller extrusion;

[0030] B. Put the sheet into the phenolic resin mixed with flame retardant for impregnation;

[0031] C. Take out the impregnated sheet and dry it at a high temperature of 150°C for 5 minutes;

[0032] D. After stacking the dried flakes, put them on a press for high-temperature and high-pressure extrusion. The temperature is 150° C., the extrusion pressure is 1430 psi, and the extrusion time is 12 hours.

[0033] E. Cool the extruded sheet naturally, trimming, quality inspection and packaging.

[0034] The finally prepared guitar material contains 60% of wood fiber by weight, 30% of phenolic resin and 10% of flame retardant.

Embodiment 2

[0035] Embodiment 2 of the present invention: a kind of preparation method of guitar material comprises the following steps:

[0036] A. The wood fiber is made into a 280g / ㎡ sheet by roller extrusion;

[0037] B. Put the sheet into the phenolic resin mixed with flame retardant for impregnation;

[0038] C. Take out the impregnated sheet and dry it at a high temperature of 140°C for 6 minutes;

[0039] D. After stacking the dried flakes, put them on a press for high-temperature and high-pressure extrusion. The temperature is 140° C., the extrusion pressure is 1430 psi, and the extrusion time is 15 hours.

[0040] E. Cool the extruded sheet naturally, trimming, quality inspection and packaging.

[0041] The finally prepared guitar material contains 65% of wood fiber by weight, 27% of phenolic resin and 8% of flame retardant.

Embodiment 3

[0042] Embodiment 3 of the present invention: a kind of preparation method of guitar material comprises the following steps:

[0043] A. The wood fiber is made into a 280g / ㎡ sheet by roller extrusion;

[0044] B. Put the sheet into the phenolic resin mixed with flame retardant for impregnation;

[0045] C. Take out the impregnated sheet and dry it at a high temperature of 160°C for 4 minutes;

[0046] D. After stacking the dried flakes, put them on a press for high temperature and high pressure extrusion. The temperature is 160°C, the extrusion pressure is 1430psi, and the extrusion time is 10h.

[0047] E. Cool the extruded sheet naturally, trimming, quality inspection and packaging.

[0048] The finally prepared guitar material contains 55% of wood fiber by weight, 35% of phenolic resin and 10% of flame retardant.

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Abstract

The invention discloses a preparation method of a guitar material. The preparation method comprises the following steps: A, preparing wood fibers into thin sheets in a conventional manner; B, puttingthe sheets into phenolic resin mixed with a flame retardant for dipping; C, drying the impregnated sheets at the temperature of 140-160 DEG C for 4-6 minutes; D, stacking the dried sheets in an overlapping manner, and performing high-temperature and high-pressure extrusion on the stacked sheets on a press for 10-15 hours at the temperature of 140-160 DEG C and the extrusion pressure of 1430 psi; and E, naturally cooling the extruded sheets. The finally prepared guitar material comprises the following components, by weight: 60% of wood fiber, 30% of phenolic resin and 10% of flame retardant. The guitar prepared from the material has an excellent acoustic effect, the manufacturing period of the guitar is shortened, and the prepared material has excellent physical properties.

Description

technical field [0001] The invention relates to a material preparation method, in particular to a guitar material preparation method. Background technique [0002] The overall structure of the guitar mainly includes panels, back panels, side panels, fingerboards, piano heads, bridges, strings, etc. Most of these components are made of wood. Acoustic guitar is highly praised and loved by people because of its excellent acoustic effect. However, there are also some problems in the acoustic guitar itself: 1. Most of the components of the acoustic guitar are made of wood. Due to the slow growth cycle of trees, the growth of trees cannot meet the needs of the market, thus restricting the development of enterprises and excessive felling of trees It will also cause environmental damage. 2. The production process of guitars made of wood is relatively complicated. The production cycle of ordinary guitars is about 1 month. Among them, the guitar painting process needs to be repeated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/04B27K5/00B27K5/04B27M1/02
CPCB27K3/04B27K5/007B27K5/04B27K2240/30B27M1/02
Inventor 赵建峰卢旭东徐博徐文武
Owner GUIZHOU ZHENAN NATASHA MUSICAL INSTR MFG CO LTD
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