硅烷改性聚氨酯密封膠膠筒性能參數對其密封性能的影響

發布時間 : 2025-6-5 11:35:50
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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.

硅烷改性聚氨酯密封膠膠筒性能參數對其密封性能的影響

(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.

發布時間 : 2025-6-5 11:35:50
Views:

表示不同半徑下的軸向壓縮距離和徑向位移之間的關系，可知開孔半徑為3,5 mm時硅烷改性聚氨酯密封膠膠筒最先與內滑套接觸，此時的軸向壓縮距離分別為30.9,31.1mm，結合壓縮行程曲線可以自主規劃壓縮行程，在最安全的狀態下達到施工壓力，安全生產。從圖可以得出，3一5 mm為最佳開孔半徑范圍，但也應根據實際情況合理選擇硅烷改性聚氨酯密封膠膠筒開孔半徑的范圍。

提出一種無限級鍵槽式固井滑套和與之配套的梭鏢，基于橡膠熱疲勞老化力學性能實驗，建立梭鏢硅烷改性聚氨酯密封膠膠筒三維數值模型，研究了防突環結構參數和硅烷改性聚氨酯密封膠膠筒結構參數等敏感性參數對其密封性能的影響規律，得出以下結論:

(1)綜合考慮塑性變形和后續溶解對密封性能的影響，防突環的材料選用鎂鋁合金材料，防突環的開槽數為4、防突環數量為2時密封效果最好。

(2)硅烷改性聚氨酯密封膠膠筒長度將對密封壓力產生顯著的影響。隨著中間硅烷改性聚氨酯密封膠膠筒長度的增加，最小密封壓力整體呈先增大后減小的趨勢，綜合考慮固井滑套的實際應用需求，建議中間硅烷改性聚氨酯密封膠膠筒的長度為125 mm。

(3)硅烷改性聚氨酯密封膠膠筒的不同開孔形狀會對硅烷改性聚氨酯密封膠膠筒密封性能產生顯著的影響。綜合考慮密封壓力、加工性能以及經濟性等，半圓形開孔的密封效果最佳。開孔半徑也會對密封壓力產生影響，當半圓形開孔半徑為3一5 mm時密封壓力高，密封效果最好。http://www.www.sunsage.net/

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上一篇: MS密封膠膠筒內側開孔對密封性能的影響

下一篇: 對玻璃基材和聚氨酯密封膠都具有優異的粘接力