MS密封胶中胶筒长度对MS密封胶胶筒密封性能的影响

发布时间 : 2025-6-4 10:15:41
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(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.

MS密封胶中胶筒长度对MS密封胶胶筒密封性能的影响

(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.

发布时间 : 2025-6-4 10:15:41
Views:

由于防突环主要承受载荷，而MS密封胶胶筒部分主要负责密封，因此梭镖是否能承受高压除了MS密封胶胶筒橡胶部分外还取决于防突环。优化后防突环可以承受更高的载荷，因此文中进一步探究了在加压60 MPa的情况下中间MS密封胶胶筒长度对MS密封胶胶筒密封性能的影响。

MS密封胶胶筒是该滑套的重要部件，坐封过程中先对梭镖打压，压缩MS密封胶胶筒，通过MS密封胶胶筒压缩膨胀与套管之间形成密封。MS密封胶中胶筒的长度决定密封件的接触长度和接触面积，接触面积越大，密封效果越好。MS密封胶胶筒长度增加，密封区域增加，但MS密封胶胶筒长度也不宜过长。MS密封胶胶筒过长容易失稳，并且压缩过程中容易造成应力集中，从而影响密封。而MS密封胶中胶筒过短也可能造成密封失效，MS密封胶胶筒变形严重。因此，MS密封胶胶筒长度对于梭镖密封情况有极大的影响，文中在加载60 MPa时分别对MS密封胶中胶筒长度L为110,115,120,125,130,135 mm进行对比分析，结果如图所示。

图表示轴向的接触压力沿路径的变化情况，在轴向距离为30 mm时轴向接触压力达到最大。图表示不同中间MS密封胶胶筒长度下图中接触应力最大处MS密封胶胶筒的圆周接触应力变化，可以看出随着MS密封胶胶筒长度的增加，最小密封压力和最大接触应力都是呈先减小再增大又减小的趋势，最小密封压力在125mm时达到最大值为75 MPa。

图表示不同中间MS密封胶胶筒长度下MS密封胶胶筒的压缩距离，可知中间MS密封胶胶筒越长，MS密封胶胶筒的轴向压缩距离越大。因为在橡胶长度增加的情况下，中间环空体积未变，因此橡胶填满中间环空体积后位移相应地增加。点E为轴向压缩距离由急变缓的转折点，说明在点E时MS密封胶胶筒与套管开始接触;点F之后轴向压缩距离又呈线性变化，说明MS密封胶胶筒和套管已经完全接触，因此轴向压缩距离不会有太大的变化。http://www.sdyuantai.com/

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上一篇: 探究防突环数量b对丁基防水嵌缝胶胶筒密封的影响

下一篇: MS密封胶胶筒内侧开孔对密封性能的影响