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什么是生料带的使用磨合阶段


发布时间:2019-09-24    编辑:杭州恩立氟塑料制品有限公司    浏览次数:117次    标签:

 生料带通常被用在密封领域,采用缠腰等方法,在密封处其实也是存在一定的磨合期的,生料带厂家提醒,磨合期内不要急于使用,以免影响使用寿命。

  当生料带密封摩擦面处在磨合阶段,在此期间内摩擦、磨损和摩擦热都变化较大,然后较快进入稳定的磨损阶段,这时磨损速度小并几乎保持不变,也即是密封的正常工作阶段,是剧烈磨损阶段,由于表面受到损坏、温度上升,加上材料力学性能的变化使磨损量急剧增大,导致泄漏量超过了允许值。对于不同的密封结构和运行条件,生料带密封摩擦副的磨损规律也不一样的,因此磨损影响密封的过程也不尽相同。
  生料带磨损形式有多种,包括粘费磨损、磨料磨损、腐蚀磨损、疲劳磨损和微动磨损等,较严重的磨损形式是磨料磨损,即由外来的硬体顆粒进人密封表面使材料产生切削或划伤,或者由于流体带走固体颗粒的冲刷作用,从而导致正常泄漏状态遭到破坏。别的、摩擦材料与周围介质发生化学或电化学反应的腐蚀磨损也是密封中常见的磨损形式。
  当生料带度过磨合期,将会使得密封性能达到极致,产品说明中也会特别注明磨合期的相关事宜,确保使用的效果。
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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