1、精選優質文檔-傾情為你奉上Static vsDynamicTorque靜態和動態扭矩Dynamic Torque 動態扭矩:Dynamic torque is the accepted Strategy for fastening in General Motors.Thismethod is used by the Bosch electric wrehches in Powertrain Assembly動態扭矩是通用汽車公司認可的擰緊方式。動力總成裝配線上的Bosch電動扳手就是使用這個方法.Static Torque靜態扭矩:Static Torque is the method us

2、ed when a bolt is rechecked with a manual torquewrench.Static Torque is not the accepted method for fastening in General Motors當用手動扳手重新檢測螺栓時，則采用靜態扭矩，靜態扭矩不是通用汽車公司認可的擰緊方式。Static vsDynamicTorque 靜態和動態扭矩的比較:Dynamic torque is much more accurate and repeatable then static torque.Thereis normally a differe

3、nce between dynamic torque readings and static torquerechecksThe difference depend on the characteristics of each joint and eachboltFactors contributing to this difference include：動態扭矩比靜態扭矩更加準確，重復性更強。動態扭矩的讀數與重檢靜態扭矩的讀數通常是不相同的而且不同的粘結點，不同的螺栓，差別程度又有所不同。造成讀數差異的主要因素包括： 1Soft joints(gaskets and sealers) 軟性

4、粘結點(襯墊和密封圈)2Time after fastening 擰緊的時間3. Condition of the part(haS ii been run?) 工件的狀態(是否已經用過了?)Do not be alarmed by a difference between the dynamic torque and a statiCrecheckThis is a normal condition若發現動態扭矩和靜態重檢扭矩讀數不同，請不要緊張這是正常現象Since a static recheck is less accurate than the original dynamic to

5、rque and therecheck disturbs the good joint，it is not a good practice to recheck good partSStatic rechecks should only be used during repairs，rejected parts analysis or aspart of a teardown auditDO not statically recheck good engines or transmissions.由于靜態重檢不如原先的動態扭矩準確，而且還會損壞好的粘結點，所以對合格工件進行重新檢測不是一個好方

6、法靜態重檢應只限于工件返修，工件故障分析或工件拆卸檢查不要對好的發動機或變速箱進行靜態檢查A database of static vsdynamic values will be developed as part of the teardown audits by the quality department.This is the only reliable way to gathersufficient data to understand this problem通過工件拆卸檢查，質量部將制定一張靜態和動態數值對比表這是唯一一個較為可靠的數據收集方法，能幫助我們更好地理解問題扭矩槍緊固螺釘通過傳感器顯示的動態扭矩，而你用扭力板手檢測其松動扭矩，這個時候你是檢測其靜態扭矩，