《Table 2O-ring Shore hardness H and the relationships of E, C01, C10, and d01》

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《深水球形接头密封的结构设计和性能分析（英文）》

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Deep-water ball joints need to function under low-temperature and high-pressure conditions.Therefore，the O-ring needs to retain outstanding elasticity at low temperatures，and the correct choice of O-ring is significant to the spherical seal.Table 1shows the temperature properties and elasticity of common rubbers（Jaunich et al.2010；Flitney 2005；Cornelius and Monroe 2010；Akulichev et al.2017）.Silicone rubber retains excellent elasticity in ultra-low-temperature environments and is therefore the best choice for O-ring material.