為什麼正確的扭矩至關重要:預防汽車和航空維修中的事故和損壞

2025年2月21日

在汽車和航空維修中,確保使用正確的擰緊扭力至關重要。嚴格遵守建議的扭力規格是工作的基礎,但這一點常常被忽視,從而導致潛在的事故。.

無論您是在檢修引擎還是擰緊車輪螺栓(如上圖所示),都必須嚴格按照製造商建議的扭力值進行操作。一般來說,螺栓不應擰得太鬆,但擰得太緊同樣會帶來問題,甚至可能損壞零件或產品。.

BMW車輪防盜螺栓(位於2點鐘位置)

部分進口車輛的其中一個輪轂螺栓上裝有獨特的「防盜輪轂螺栓」。這種防盜螺栓的強度低於普通螺栓,其擰緊力矩應為 110 牛·米,而普通螺栓則需要 140 牛·米。防盜螺栓的設計目的是為了防止車輪被盜,這種情況在歐洲十分普遍。它們只能使用每輛車專用的適配器才能拆卸。.

螺栓因過度擰緊而損壞的例子

過度擰緊的螺栓,例如圖中所示的螺栓,可能會變形。在某些情況下,螺栓甚至會完全卡住或堵塞。這會導致產品損壞,並可能造成危險。. 

很多情況下,輪胎店在安裝輪胎時會過度鎖緊螺栓。之後,當需要更換煞車片或拆卸車輪時,螺栓卻旋不動。這往往會導致車主感到沮喪,並與維修中心產生糾紛。.

透過遵循正確的程序、使用合適的工具並遵守維護手冊,維修車間可以避免不必要的糾紛、客戶投訴和時間浪費,同時保護客戶寶貴的車輛。.

雖然這個例子用的是汽車車輪,但同樣的原理也適用於引擎、變速箱、底盤,甚至飛機維修。因扭矩不當而導致的事故絕不應該發生。保持正確的扭力是所有機械師的基本責任。.

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