Making process of Mongol stringed instrument box

Abstract

The invention discloses a making process of a Mongol stringed instrument box. First, a bottom board and a surface board are made; then, side boards are made; and finally, box preprocessing and box assembly are performed. The making process of a Mongol stringed instrument box overturns the traditional making process, and saves the time of making. The water content of wood at local gaps is raised or reduced to 40%, the water content at the moment is equal to the water content when wood fibers are saturate, and the water content is most suitable for bending a long wooden board; and then, heating is performed to reduce the water content. Sodium hydroxide can decompose hemicelluloses in wood and reduce hydroxyl in wood. Paraffin used can go into the capillary pores in the surface and middle layers of wood at high temperature, and fill the capillary pores after cooled and solidified. Thus, outside moisture is prevented from going into wood again, and deformation of wood is prevented effectively. Then, the surface of wood is uniformly and fully coated with trimethyl chlorosilane, which can modify wood. After modification, the water absorption rate is reduced, and the hydrophobic property of the surface of wood is enhanced.

Description

technical field [0001] The invention relates to the field of Matouqin, in particular to a manufacturing process of a Matouqin case. Background technique [0002] In the traditional production process of the matouqin box, the side panels of the isosceles trapezoidal box are spliced ​​into a whole by splicing wooden boards and fixed, and then two right-angled trapezoidal pieces are spliced ​​into the bottom board and fixed. The panel is made in the same way as the floor, and then Then open sound holes on the panel, and finally splice, fix and modify the side panels, bottom panels and panels to form a piano case; the traditional production of Matouqin is to first make all the rest of the Matouqin, and the final process is through the sound hole. The installation of the sound column is difficult and requires special tools; the size of the matouqin box is 180mm on the upper side of the isosceles trapezoid, 280mm on the lower side, and the distance between the upper side and the l...

AI Technical Summary

Problems solved by technology

[0004] The production process of Matouqin is complicated and time-consuming. For laymen, it is difficult to identify what is a well-made Matouqin and what is a rough-made Matouqin; For a matouqin made rough, after a period of use, it is easy to appear gaps between the panels of the piano case, and in severe cases, the piano case will become loose, and the sound produced cannot reach the expected effect;

[0005] In addition, the production of the Matouqin takes a long time. Since the bottom plate, panel and side panels of the Matouqin are all spliced ​​together, it takes a long time to glue and fix, wasting time and energy;

[0006] When playing the matouqin, the player needs to sit and play with the piano box between his legs, or stand and play with the piano box around his waist. Excessive pressure on the side panel will damage the side panel. On the other hand, clamping the piano box with both legs will affect the resonance of the piano box

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