Results 11 to 20 of about 348 (180)
Lubricants, 2023 Water-lubricated bearings play a critical role in underwater propulsion systems but are often prone to failure due to mechanical wear and vibration, especially under high loads and prolonged friction.
Hao Yu +5 more
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"Effect of composite reinforcing agents on the properties of HNBR/FKM composites"
Hecheng xiangjiao gongye, 2023 HNBR/FKM composites were prepared by compounding carbon black (CB), hydroxide zinc monomethacrylate (HZMMA) and carbon nanotubes (CNTs) to modify hydrogenated nitrile rubber (HNBR)/ fluororubber (FKM) blend, and the effects of the composite reinforcing ...
"LI Shi-kuna, WANG Hong-zhena, ZHOU Hai-yueb, DU Zheng-penga, CAI Rong-qiangb, LI Dao-zhuangb, LI Zai-fengb"
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工程科学与技术, 2021 Progressive cavity pumps (PCP), which uses the ordinary nitrile rubber, are widely used in heavy oil production, and it is prone to failure of the core-burning perforation of the stator bushing.
Changshua SHI, Kailin CHEN, Xiaohua ZHU
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Permeability test and fuzzy orthogonal analysis of hydrogenated nitrile O-ring
Petroleum, 2015 In the high temperature, high pressure and high corrosive environment of the oil and gas drilling downhole, the weatherability of rubber sealing material has a great influence on the production safety.
Qin Hu, Changcheng Wan, Changxin Wang
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Corrosion damage behaviors of rubber O-rings under simulated acid fracturing conditions
Petroleum, 2023 To explore the damage behavior of O-ring in acid environment, a high-temperature and high-pressure (HTHP) autoclave was used to simulate the service environment of O-ring, and then 168h corrosion test of hydrogenated nitrile butadiene rubber (HNBR) and ...
Dezhi Zeng +5 more
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Evaluation of sealing performance of a compression packer at high temperature
Science Progress, 2022 Rubber is the key component of a compression packer, which directly affects the success or failure of seals. Presently, the contact stress between the rubber and borehole walls is used as the main evaluation criterion for the sealing ability of the ...
Xu Zheng, Bin Li, Gensheng Fei
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Petroleum, 2022 Shale gas production has become the main driver of global gas production growth. Deep shale gas is difficult to extract, which puts forward higher requirements for drilling speed increase. The downhole power drilling tools are mainly screw drilling tools.
Changshuai Shi +3 more
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Hecheng xiangjiao gongyeHydrogenated nitrile rubber with hydrogenation degree of 90%, 95% and 99% was prepared by solution hydrogenation of nitrile rubber with ruthenium catalyst, the effects of catalyst amount, solid rubber content and filling volume of reactor on ...
LI Wen-xina, LIU Ping-pingb, LI Lina, WANG Huia
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Advanced Industrial and Engineering Polymer Research, 2019 While the stress relaxation is a common phenomenon for polymers, its effect on the stress/strain accelerated aging of the hydrogenated nitrile butadiene rubber (HNBR) cannot be ignored.
Qidi Peng +3 more
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"Emulsifier-regulated synthesis of nitrile rubber and its catalytic hydrogenation in emulsion"
Hecheng xiangjiao gongyeThe primary challenge in emulsion hydrogenation resides in maintaining emulsion stability under specific temperature and pressure conditions. This study proposed a strategy involving the incorporation of emulsifiers during the hydrogenation process to ...
GUO Zong-lei1 a, YU Ming-ming2, LI Yan-yan1 b, WANG Hui1 a, WANG Cheng-dong1 a
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