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本文主要是以弦轴受力分析作为依据,运用价值工程原理,探讨全国四大钢琴厂对弦轴材料选择上的差异。本文主要结论认为采用60Si2Mn钢和采用45钢都不合适。前者浪费,后者冒险。作者认为钢琴弦轴的合适选材应是碳素弹簧钢65钢。这无论从经济上,还是从材料性能上,都是合理的。而且这一结论符合轻工业部钢琴部颁标准(SG96—75)的要求。
This paper mainly based on the analysis of the force of the chord, based on the principle of value engineering, discusses the differences of the material selection of the four major piano factories in China. The main conclusion of this paper is that the use of 60Si2Mn steel and 45 steel are not suitable. The former waste, the latter adventure. The author believes that the suitable material for the piano string shaft should be carbon steel 65 spring steel. This is reasonable in terms of economy and material performance. And this conclusion is in line with the requirements of the ministry of light industry ministry (SG96-75).