A method of making a piano soundboard

Abstract

The invention relates to a method for making a piano soundboard. The steps are as follows: first, divide boards with different annual ring densities into five categories; The splicing process is also arranged according to the size of the annual ring density; finally, spliced ​​into a whole piece and then cut into the required soundboard shape. The present invention distinguishes boards with different densities, arranges them rationally during splicing, makes the density of each part of the whole sound board gradually increase or decrease, reduces the density difference between adjacent boards, and overcomes the sound board caused by climate change. The destructive effect of internal stress improves its vibration performance, thereby increasing the quality of the piano's timbre.

Description

technical field [0001] The invention belongs to the technical field of piano soundboards, in particular to a method for making a piano soundboard. Background technique [0002] The soundboard in the piano is the key component for the piano to produce a beautiful sound. In the prior art, the soundboard uses several plates to splice, but the arrangement and order of the plates are not arranged reasonably. Different materials have different effects on the sound. Materials with different annual ring widths are arranged in disorder, and the density of each part of the whole soundboard is chaotic and disorderly, and the effect on the sound is also irregular. In the prior art, in order to ensure the quality of the soundboard and overcome the above-mentioned defects of the wood, it is necessary to use a board with a similar density. In the manufacture of high-end pianos, there are extremely high requirements for the density of the board and the difference between the boards. , not ...

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Problems solved by technology

[0002] The soundboard in the piano is the key component for the piano to produce a beautiful sound. In the prior art, the soundboard uses several plates to splice, but the arrangement and order of the plates are not arranged reasonably. Different materials have different effects on the sound. Materials with different annual ring widths are arranged in disorder, and the density of each part of the whole soundboard is chaotic and disorderly, and the effect on the sound is also irregular.

In the prior art, in order to ensure the quality of the soundboard and overcome the above-mentioned defects of the wood, it is necessary to use a board with a similar density. In the manufacture of high-end pianos, there are extremely high requirements for the density of the board and the difference between the boards. , not only requires the board to be dense, but even requires each board to meet the strict requirements of "same" density, which results in high manufacturing costs and waste of raw materials

[0003] At present, in the manufacture of pianos, plates with an average annual ring width of no more than 4 mm are usually selected for direct splicing. Due to the large difference between the plates, the soundboard is easily deformed due to the different water absorption under different temperature and humidity conditions, such as Two pieces of material with a large difference in density are spliced ​​together. Due to different deformations in hot and humid weather, one of the materials will bulge compared to the other, which will also lead to poor sound quality.

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