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Treatment technology for improving acoustic vibration characteristic of Paulownia tree wood

A technology of vibration characteristics and processing technology, which is applied in pretreatment equipment, wood processing equipment, impregnated wood, etc., can solve the problems of general acoustic vibration characteristics and limited use range, so as to improve the acoustic vibration characteristics, improve the quality constant of sound radiation, Effect of High Vibration Efficiency

Inactive Publication Date: 2018-11-06
阜南县明强柳编工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Paulownia is widely used due to its unique physical properties, but its acoustic and vibration characteristics are general, which greatly limits its scope of use.

Method used

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  • Treatment technology for improving acoustic vibration characteristic of Paulownia tree wood
  • Treatment technology for improving acoustic vibration characteristic of Paulownia tree wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention discloses a treatment process for improving the acoustic vibration characteristics of paulownia wood. After the paulownia wood surface is polished, an oxidant solution is used to oxidize the paulownia wood surface, and then carbonized oil is used to carbonize the paulownia wood surface under vacuum conditions.

[0019] Further, the polishing of the paulownia surface is firstly using 500-mesh sandpaper to uniformly polish the paulownia surface for 15 minutes, and then using 800-mesh sandpaper to uniformly polish the paulownia surface for 25 minutes.

[0020] Further, the oxidizing treatment of paulownia wood surface with oxidant solution is to soak paulownia wood and oxidant solution at a ratio of 1kg:500mL, the soaking temperature is 78°C, the soaking time is 40min, and then dried at 100°C to the moisture content Up to 15%, that's all.

[0021] Further, the oxidant solution is a hydrogen peroxide solution with a mass fraction of 9.5%.

[0022] Further, th...

Embodiment 2

[0029] The invention discloses a treatment process for improving the acoustic vibration characteristics of paulownia wood. After the paulownia wood surface is polished, an oxidant solution is used to oxidize the paulownia wood surface, and then carbonized oil is used to carbonize the paulownia wood surface under vacuum conditions.

[0030] Further, the polishing of the paulownia surface is firstly using 500-mesh sandpaper to uniformly polish the paulownia surface for 20 minutes, and then using 800-mesh sandpaper to uniformly polish the paulownia surface for 30 minutes.

[0031] Further, the oxidizing treatment of paulownia wood surface with oxidant solution is to soak paulownia wood and oxidant solution at a ratio of 1kg:600mL, the soaking temperature is 80°C, the soaking time is 50min, and then dried at 100°C until the moisture content is reached Up to 15%, that's all.

[0032] Further, the oxidant solution is a hydrogen peroxide solution with a mass fraction of 9.8%.

[003...

Embodiment 3

[0040] The invention discloses a treatment process for improving the acoustic vibration characteristics of paulownia wood. After the paulownia wood surface is polished, an oxidant solution is used to oxidize the paulownia wood surface, and then carbonized oil is used to carbonize the paulownia wood surface under vacuum conditions.

[0041] Further, the polishing of the paulownia surface is firstly using 500 mesh sandpaper to uniformly polish the paulownia surface for 18 minutes, and then using 800 mesh sandpaper to uniformly polish the paulownia surface for 27 minutes.

[0042] Further, the oxidizing treatment of paulownia wood surface with oxidant solution is to soak paulownia wood and oxidant solution at a ratio of 1kg:550mL, the soaking temperature is 79°C, the soaking time is 45min, and then dried at 100°C to the moisture content Up to 15%, that's all.

[0043] Further, the oxidant solution is a hydrogen peroxide solution with a mass fraction of 9.6%.

[0044] Further, th...

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Abstract

The invention discloses a treatment technology for improving the acoustic vibration characteristic of Paulownia tree wood, and relates to the technical field of bio-environmental protection. The technology comprises the following steps: polishing the surface of the Paulownia tree wood, oxidizing the surface of the Paulownia tree wood by using an oxidant solution, and carbonizing the surface of Paulownia tree wood by adopting carbonized oil under vacuum conditions. The Paulownia tree wood is carbonized oil by using the prepared silicon-modified castor oil as the carbonized oil, so the deformation of the Paulownia tree wood due to stress generated by excessive temperature is effectively prevented, thereby the dimensional stability of the treated Paulownia tree wood is effectively maintained;and most importantly, the silicon-modified castor oil is used to carbonize the Paulownia tree wood in order to make the carbonized Paulownia tree wood have a high vibration efficiency, and the acoustic radiation quality constant of the Paulownia tree wood is effectively improved to make the vibration energy of the treated Paulownia tree wood maximally used to radiate sound energy to air, so the obtained sounds have a large volume and last for a long time, thereby the acoustic vibration characteristic of the Paulownia tree wood is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of biological environmental protection, and in particular relates to a treatment process for improving the acoustic vibration characteristics of paulownia wood. Background technique [0002] Wood with good acoustic quality has excellent acoustic resonance and vibration spectrum characteristics, and can radiate sound energy through its own vibration with the help of impact, so that the musical sound it emits has a beautiful timbre. The timbre of the sound energy radiated by wood vibration is affected by the resonant frequency (the number of harmonics and the relative strength of each harmonic), the pitch is affected by the level of the fundamental frequency, and the loudness is affected by the amplitude. This characteristic is that wood can be widely used. An important basis for musical instrument soundboards. [0003] Paulownia is widely used due to its unique physical properties, but its acoustic and vibra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/52B27K3/16B27M1/06B27K3/08
CPCB27K3/0207B27K3/08B27K3/16B27K3/52B27M1/06
Inventor 孙传庆
Owner 阜南县明强柳编工艺品有限公司
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