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什么是生料帶的使用磨合階段


發布時間:2019-09-24    編輯:杭州恩立氟塑料制品有限公司    瀏覽次數:308次    標簽:

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  當生料帶密封摩擦面處在磨合階段,在此期間內摩擦、磨損和摩擦熱都變化較大,然后較快進入穩定的磨損階段,這時磨損速度小并幾乎保持不變,也即是密封的正常工作階段,是劇烈磨損階段,由于表面受到損壞、溫度上升,加上材料力學性能的變化使磨損量急劇增大,導致泄漏量超過了允許值。對于不同的密封結構和運行條件,生料帶密封摩擦副的磨損規律也不一樣的,因此磨損影響密封的過程也不盡相同。
  生料帶磨損形式有多種,包括粘費磨損、磨料磨損、腐蝕磨損、疲勞磨損和微動磨損等,較嚴重的磨損形式是磨料磨損,即由外來的硬體顆粒進人密封表面使材料產生切削或劃傷,或者由于流體帶走固體顆粒的沖刷作用,從而導致正常泄漏狀態遭到破壞。別的、摩擦材料與周圍介質發生化學或電化學反應的腐蝕磨損也是密封中常見的磨損形式。
  當生料帶度過磨合期,將會使得密封性能達到極致,產品說明中也會特別注明磨合期的相關事宜,確保使用的效果。
The raw material belt is usually used in the sealing field. The method of binding waist is used. In fact, there is a certain grinding period at the sealing place. The raw material belt manufacturer reminds that during the grinding period, do not be in a hurry to use it so as not to affect the service life.
When the raw material belt seal friction surface is in the grinding phase, during this period, the friction, wear, and friction heat all change greatly, and then quickly enter the stable wear phase. At this time, the wear speed is small and almost unchanged, that is, the normal working phase of the seal., It is a period of intense wear. Due to damage to the surface, temperature rise, and changes in the mechanical properties of the material, the amount of wear increases dramatically, resulting in leakage exceeding the allowable value. For different sealing structures and operating conditions, the wear rules of the raw material belt seal friction pairs are also different, so the process of wear affecting the seal is also different.
There are many forms of raw material wear, including adhesion wear, abrasion wear, corrosion wear, fatigue wear, and micro-motion wear. The more serious form of wear is abrasion wear, that is, the material is cut or scratched by external hardware particles entering the sealed surface. Or the normal leakage state is destroyed due to the flushing effect of the fluid taking away the solid particles. Corrosion wear of other friction materials and chemical or electrochemical reactions with surrounding media is also a common form of wear in seals.
When the raw material belt passes through the grinding period, the sealing performance will be maximized. The product description will also specify the relevant issues during the grinding period to ensure the effect of use.

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