Compound instrument piece for musical bar instrument and manufacturing method thereof

Abstract

The invention provides a compound instrument piece for a musical bar instrument. The compound instrument piece is prepared from, by weight, 68%-87% of glass fiber and 13%-32% of raw material mixing solution, wherein the raw material mixing solution is prepared from polyether polyol, isocyanate and a releasing agent, and raw materials include, by percentage, 5%-8% of polyether polyol, 3%-10% of isocyanate and 5%-14% of releasing agent, and the glass fiber is preferably 75%-80%, the raw material mixing solution is preferably 20%-25%. The prepared compound instrument piece for the musical bar instrument produces clear and melodious sound, the sound duration is prolonged, the sound quality is good, the piece can completely replace or be superior to an annatto material, a manufacturing process is simple and environmentally friendly, the cost is greatly reduced, and musical scales are stable.

Description

technical field [0001] The invention relates to the technical field of musical instruments, in particular to a violin composite piece and a manufacturing method thereof. Background technique [0002] The sound bar instrument is Orff's most outstanding contribution to the manufacture of musical instruments. The original sound bar piano pieces created by Orff are hard mahogany, which is a rare wood in China. It takes a long time for the tree species to become a material, so the purchase of logs is basically imported. When the factory is in production, the first process is to process the round wood into the required square material. The cutting loss is large, and the cracks and scars of the round wood cannot be used. The second process is tuning, and the sound of the wooden piano piece is not clear and crisp. The sustain is short, and with the change of humidity, it is easy to cause the scale to be inaccurate. The third process is polishing and varnishing. The cost of manual po...

AI Technical Summary

Problems solved by technology

[0002] The sound bar instrument is Orff's most outstanding contribution to the manufacture of musical instruments. The original sound bar piano pieces created by Orff are hard mahogany, which is a rare wood in China. It takes a long time for the tree species to become a material, so the purchase of logs is basically imported. When the factory is in production, the first process is to process the round wood into the required square material. The cutting loss is large, and the cracks and scars of the round wood cannot be used. The second process is tuning, and the sound of the wooden piano piece is not clear and crisp. The sustain is short, and with the change of humidity, it is easy to cause the scale to be inaccurate. The third process is polishing and varnishing. The cost of manual polishing is high, and it is easy to cause dust pollution. It is not environmentally friendly, and excessive use of wood itself is an unenvironmental behavior.

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