弦轴,是调整琴弦张力、保持钢琴音准稳定的重要部件.弦轴的带螺纹的一端,靠冲击钉入弦轴孔中,与弦轴板成“紧配合”.这种配合,以能支持琴弦设计音高所达到的张力而不出现逆转为最低限度,低于这个限度时就必须进行修理.据笔者了解,修理弦轴松旷的方法目前 The string axis is an important component for adjusting the tension of the strings and keeping the piano sound quasi-stable.The threaded end of the string axis is driven into the string axis hole by impact and forms a “tight fit” with the string axis board. In order to support the tension of the string design pitch reached without reversing to a minimum, below this limit must be repaired.According to my understanding, the method of repairing the loose shaft of the string at present