Results 11 to 20 of about 35,731 (258)
Effect of Silicate Sealing Agent on High-Temperature Erosion Wear Properties of Thermal Spraying 304 Stainless Steel Coating [PDF]
Cailiao Baohu, 2022 The coating prepared by thermal spraying process often has many pores. In order to make up for the problems of corrosion resistance and erosion performance degradation caused by pores, 304 stainless steel coating was prepared on the surface of Q235 steel
ZHANG Chong, WANG Jian-guang, ZHENG Qiang
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Shape Optimization of Labyrinth Seals to Improve Sealing Performance [PDF]
Aerospace, 2021 To reduce gas leakage, shape optimization of a straight labyrinth seal was carried out. The six design parameters included seal clearance, fin width, fin height, fin pitch, fin backward, and forward expansion angle. The CFD (Computational Fluid Dynamics) model was solved to generate the training and testing samples for the surrogate model, which was ...
Zhao, Yizhen, Wang, Chunhua
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Applied Sciences, 2023 This study investigates the sealing performance of a combined sealing structure under extremely high and low temperature conditions, considering potential issues like high-temperature aging and low-temperature brittle fracture, which can lead to sealing ...
Shengpeng Zheng +7 more
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An investigation into the thermo-elasto-hydrodynamic effect of notched mechanical seals
Nuclear Engineering and Technology, 2022 A 3D thermo-elasto-hydrodynamic model is developed to analyze the sealing performance of a notched mechanical seal applied in the reactor coolant pump. In the model, the generalized Reynolds equation, the energy equation coupled with notch heat balance ...
Xiangkai Meng +3 more
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Design and Seal Performance Analysis of Bionic Sealing Ring for Dynamic Seal
Mechanics, 2020 In this paper, the non-smooth surface technology is applied to the surface structure of the rectangular sealing ring, and a bionic sealing ring is designed. Two-dimensional axisymmetric models of rectangular and bionic sealing rings were established. Effects of pre-compression amount, fluid pressure, friction coefficient and reciprocating velocity on ...
Yang HU, Jie ZHANG, Li Ming CHEN
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Sealing Performance of the End Fitting of a Marine Unbonded Flexible Pipe under Pressure Penetration [PDF]
Journal of Applied and Computational Mechanics, 2020 The sealing performance of end fittings is very important for offshore oil and gas pipelines. To investigate the sealing behavior of a ring-shaped wedge seal, global and local numerical models of the ring–pipe interaction have been developed based on the
Liping Tang +3 more
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Study on sensitivity of annular BOP parameters to sealing performance in gas well snubbing service
Mechanical Engineering Journal, 2021 Annular Blowout Preventer (BOP) is the core device for snubbing service in gas wells. The wellhead can be sealed by operating the BOP. Rubber core of annular BOP is the main part of the sealing process, and its failure will cause blowout accidents and ...
Hai YANG +6 more
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Study on door system sealing of serialized China standard metro train
机车电传动, 2022 The sealing performance of the vehicle is the key factor affecting the comfort experience of passengers, and the sealing performance of the door system directly determines the sealing performance of the vehicle.
FU Zhiliang +7 more
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Journal of Rock Mechanics and Geotechnical Engineering, 2023 Water sealing performance is important for underground water-sealed oil storage (UWSOS). The key issues concerning water sealing performance mainly include the permeability of fractured rock mass (FRM), water-sealed safety (WSS), water curtain ...
Yutao Li +7 more
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Energies, 2018 The inserted sealing tool is a critical downhole implement that is used to balance the downhole pressure in multistage fracturing operations and prevent fracturing fluid from overflow and/or backward flow.
Gang Hu +5 more
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