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- 發(fā)布時間 : 2024-12-25 11:39:51
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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.
封隔器硅烷改性聚氨酯密封膠桶結(jié)構(gòu)和工況
(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(fā)布時間 : 2024-12-25 11:39:51
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為了研究結(jié)構(gòu)參數(shù)對高壓密封硅烷改性聚氨酯密封膠桶性能的影響,開展了對一種壓裂工藝使用的能夠密封較高壓差硅烷改性聚氨酯密封膠桶的研究.并根據(jù)現(xiàn)場作業(yè)實(shí)際工況要求模擬了硅烷改性聚氨酯密封膠桶幾何尺寸、載荷對硅烷改性聚氨酯密封膠桶變形以及硅烷改性聚氨酯密封膠桶和套管接觸應(yīng)力的影響結(jié)果表明:硅烷改性聚氨酯密封膠桶長度和扶正環(huán)寬度的尺寸變化對接觸應(yīng)力影響不明顯.硅烷改性聚氨酯密封膠桶厚度小范圍的變化對接觸應(yīng)力也不會有明顯影響,但都會顯著影響硅烷改性聚氨酯密封膠桶變形;隨著扶正環(huán)厚度的增加,硅烷改性聚氨酯密封膠桶的接觸應(yīng)力增加,而硅烷改性聚氨酯密封膠桶的變形開始不均勻。進(jìn)行了密封性試驗(yàn),硅烷改性聚氨酯密封膠桶的密封壓力達(dá)到MI,驗(yàn)證了設(shè)計(jì)的合理性。
日前,國內(nèi)常規(guī)低密封壓差硅烷改性聚氨酯密封膠桶的研究已經(jīng)有很多能滿足較高密封壓差的硅烷改性聚氨酯密封膠桶研究比較少,對硅烷改性聚氨酯密封膠桶的分析僅僅進(jìn)行了坐封后的變形和接觸。難以對硅烷改性聚氨酯密封膠桶實(shí)際工作時的性能進(jìn)行準(zhǔn)確評估。
本文研究了一種能夠密封較高八、差的硅烷改性聚氨酯密封膠桶結(jié)構(gòu).井對其實(shí)際工況進(jìn)行r模擬。分析r其不同的結(jié)構(gòu)參數(shù)對硅烷改性聚氨酯密封膠桶密封性的影響,為新高密封壓差硅烷改性聚氨酯密封膠桶的研制提供理論支持。
為一種壓裂封隔器硅烷改性聚氨酯密封膠桶結(jié)構(gòu)簡圖,其內(nèi)部有1個梯形141槽,放置不可變形金屬構(gòu)件。封隔器硅烷改性聚氨酯密封膠桶的主要結(jié)構(gòu)尺寸為長度、厚度、扶正環(huán)(內(nèi)部凹槽)長度和扶正環(huán)(內(nèi)部凹槽)厚度。因此,研究硅烷改性聚氨酯密封膠桶4個尺寸因素對硅烷改性聚氨酯密封膠桶密封性能的影響,以期優(yōu)化設(shè)并研制出符合廠況要求的硅烷改性聚氨酯密封膠桶。該硅烷改性聚氨酯密封膠桶使用工況要求:耐溫600、耐壓69 MIa<10000 psi)。
為滿足膠簡仁況要求,硅烷改性聚氨酯密封膠桶的材料選擇為丁睛橡膠。橡膠為典型的超彈性材料,確定其非線性特性非常困難,但慕于應(yīng)變能密度用于大彈性變形的1L種本構(gòu)理論已經(jīng)得到發(fā)展,并已用于超彈性材料。這些本構(gòu)方程主要有2類:第1類認(rèn)為應(yīng)變能密度是主)、認(rèn)變不變的多項(xiàng)式函數(shù),當(dāng)材料不可壓縮時,材料模型通常被稱作Rivlin材料,如果僅一次項(xiàng)被采用,模型被稱為材料;第2類認(rèn)為應(yīng)變能密度是3個主伸長率的獨(dú)立函數(shù),例如材料模。http://194tt.com/
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