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Piano sound board and manufacturing method thereof

A soundboard and jigsaw technology, applied to stringed instruments, instruments, etc., can solve the problems of low utilization rate of wood, time-consuming processing, sound quality affected by soundboard, etc., to achieve the effect of reducing factory capital occupation, using more species of timber trees, and improving utilization rate

Inactive Publication Date: 2011-06-29
沈金祥
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new type of soundboard and its manufacturing method, so as to overcome the disadvantages of low utilization rate of spruce solid wood soundboard, time-consuming processing, long-term use, and sound quality affected by soundboard expansion and contraction

Method used

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  • Piano sound board and manufacturing method thereof
  • Piano sound board and manufacturing method thereof

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Embodiment 1

[0020] Embodiment 1: A kind of soundboard, comprises inner core solid wood panel and upper and lower surface sliced ​​veneer, and inner core solid wood panel is spruce or redwood, or radially sliced ​​veneer of fir wood, sliced The veneer and the solid wood panel and the solid wood strips of the solid wood panel are bonded with an adhesive. The inner core solid wood panel processing adopts the selected wood, sawing or quarter-cutting the board, spraying water steam in the drying kiln, spraying wet-drying and conditioning for many times to obtain the board with a moisture content of 6-10% , sawing after curing or inner core board for sound board.

Embodiment 2

[0021] Embodiment 2: a kind of manufacturing method of soundboard, comprises the following steps:

[0022] a: sliced ​​veneer processing. Choose spruce, red pine, or fir with few knots and no decay, and saw it into wooden squares for radial slicing. The wood with more oil is boiled and degreased, sliced, and dried and sliced ​​veneer until the moisture content is 6. -10% Trimming to obtain knotless radial sliced ​​veneer strips.

[0023] b: core board processing. Choose spruce, red pine, or fir with uniform material, no knots, and no decay. Logs are radially sawn into planks for soundboards. The planks with a lot of oil are boiled and degreased; the planks are sent to the drying room to dry, and spray water when dry Steam, wet spraying——drying repeatedly, tempering treatment, treatment time 15-20 days, moisture content 6-10%; health preservation, put the dried planks into the health care room, control the relative humidity of the health care room, Keep the quarter-cut plank...

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Abstract

The invention belongs to the technical field of manufacturing of pianos. A sound board comprises an inner core solid wood jointed board, an upper sliced veneer overlay and a lower sliced veneer overlay, wherein the used timber is spruce, pinus koraiensis or fir; and the inner core solid wood jointed board is repeatedly jetted wet and dried through a dry kiln for thermal refining to obtain a board with moisture content of between 6 and 10 percent. In the sound board, the utilization rate of the timber of the original solid wood sound board is improved to over 40 percent from below 20 percent. The cost is reduced, the machining time of the sound board is shortened, and great application value is achieved.

Description

technical field [0001] The invention belongs to the technical field of piano manufacturing, in particular to a soundboard and a manufacturing method thereof. Background technique [0002] With its beautiful and beautiful timbre, the piano has been the queen of musical instruments for a long time. With the improvement of people's living standards, the demand for musical instruments that only a few people could enjoy in the past is increasing day by day. However, the piano has extremely strict requirements on the soundboard, one of the sound quality components. The strings vibrate after being struck by the hammer, and the vibrating string waves are transmitted to the soundboard by the string code and the pegs, and resonate through the resonance of the soundboard, resulting in a loud sound. The soundboard is a very important part of a piano. [0003] At present, the piano soundboard is made of mahogany and spruce solid wood quarter-cut jigsaw panels. Mahogany is expensive a...

Claims

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Application Information

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IPC IPC(8): G10C3/00G10C3/06
Inventor 沈金祥
Owner 沈金祥
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