有些旧钢琴的弦槌磨损得已不能再使用了,这时需要把它从槌柄上起拔下来,换上新的弦槌。下面介绍一种快速起拔弦槌的方法,以供同行者参考。在起拔弦槌之前,先将击弦机从钢琴上卸下来,平放在桌案上,让弦槌柄枕木着案,将准备好的内盛有适量的水和放有电热器(俗称“热得快”)的器皿放在弦槌下边,再用块木板将器皿口的大部分盖严,让开水的热蒸气从弦槌柄和槌头的胶接处通过(如图)。当槌头与槌柄胶接处的胶软化后,左手持克丝钳在靠近槌头的地方将槌柄夹紧,右手再 Some old piano hammers wear out and are no longer in use, at a time when it needs to be unplugged from the shank and replaced with a new hammer. Here’s a quick way to pull the hammer for your reference. Prior to pulling the hammer, remove the strike machine from the piano and put it flat on the desk, so that the hammer will be handled by the handle, and the proper amount of water and electric heater (commonly known as “Hot fast”) on the underside of the hammer, and then use a piece of wood to cover most of the mouth of the vessel so that hot steam of boiling water passes through the bonnet of the hammer shank and the hammerhead (pictured). When the hammer head and the shank rubber adhesive at the softening, the left hand holding wire clamp near the hammerhead shank hammer grip, right hand and then