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發條

發條
裝在自動機械錶內的發條

發條螺旋帶狀金屬扭力彈簧英语Torsion spring,亦稱發條彈簧,為手動機械錶與某些時鐘玩具的動力來源。

用力旋转发条后带动后面的扭力弹簧旋紧,即可提供动力。发条的能量会随着机芯的运行逐渐减弱,发条利用的是杠杆原理

早期的發條用碳鋼合金製成,自1945年以來,已陸續被多種新的特殊合金(添加、或),以及冷軋合金(結構硬化)所取代。

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發條
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