Anonymous
Anonymous asked in 社會與文化語言 · 7 years ago

請幫忙翻譯 專業知識 中翻英

一、初步判斷如下 :

因”燒結”導致螺帽與螺絲咬死,簡單來說就是在加壓鎖緊螺帽及螺栓時會產生磨損效應,這些粗糙表面變會產生冷焊效應。使得螺帽在轉入螺紋並到達物件表面前便已焊接在螺紋上囉

更深一點的解釋 :

咬死類似于一種冷熔接過程,主因是工件組裝/鎖入時速度、摩擦產生瞬間高溫致金屬熔合而產生沾黏現象。這種咬死現象經常發生在不銹鋼、合金材料的螺絲、螺母上(其中又以不銹鋼對咬死最為敏感),是因為這 些金屬合金表面受損時,在其表面會產生氧化膜層以防止進一步銹蝕。當緊固件鎖緊時,接觸的螺紋表面受到的壓力會破壞氧化膜,失去氧化膜的金屬接觸點會發生剝落而產生相互咬緊。

針對此問題最簡單且有效的解決方案就是「潤滑」處理,建議客人可在工件表面上乾式透明薄膜潤滑劑,可大幅改善螺紋咬死(卡死)之現象。

二、檢測紀錄調查 :

扭力值符合-(6 ~30 IN/LBS)。敝司有使用潤滑油進行測試。

三、複測結果 :

扭力板手已送外校正,需等到11/14 or 15 號才會回廠,到時後會做比對測試,電鍍前、電鍍後各測一顆,來分析結果。

以上~~拜託了 !! 謝謝 !!

1 Answer

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  • 7 years ago
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    1. Preliminary judgment asfollows:

    Because of " sintered " causes the nut and screw were clenched . Itis simply in a pressurized locking nuts and bolts will produce wear and teareffect, these will cause the rough surface to have cold welding effect . Inturn it make the nut soldered on the thread before the nut reach the surface ofthe object.

    A little bit deeper explanation: Clench is similar to a cold fusion process , mainly due to the workpieceassembly / lock turning speed , the instantaneous heat generated by thefriction induce metal fusion phenomenon to cause the clench . This is oftenoccurs in galling stainless steel, alloys material of the screw , the nut (among which the most sensitive Stainless clench ) , since these metal alloysurface is damaged , the surface produce a layer of film to prevent furtheroxidation corrosion. When the fastener is tightened , the oxide film of thecontact surface of the screw will be damaged by pressure , the loses of metaloxide film contact points will cause peeling and clenched .

    To solve this problem the most simple and effective solution is to "lubricate " treatment , it is recommended customers can put the dry style transparentfilm lubricant on the surface of the workpiece can significantly improve thethreaded clench ( stuck ) phenomenon .

    2. Testing records Survey:

    Torque values ​​match - (6 ~ 30 IN / LBS). Ourcompany has the use of lubricants for testing.

    3. The retest results :

    Torque wrench has been sent to external calibration , we need to wait until11/14 or 15, when it is back to the factory , then, we will do the retest, onebefore plating , and one after plating , to analyze the results .

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