Swivel packing seal assembly is the key of the swivel, whose function directly influences its service life, further more, and affects the drilling speed.
盤根密封是(水)龍頭的關(guān)鍵環(huán)節(jié),其性能直接影響(水)龍頭的壽命和鉆井速度。
The wash pipe packing of drilling swivel showed wear-and-tear continually in drilling process due to its structural design.
鉆井(水)龍頭由于結(jié)構(gòu)設(shè)計的原因,沖管盤根在鉆井過程中不斷磨損,特別是在高壓泥漿的作用下,盤根密封常常被破壞。
The mean value of work loads on a shaft bearing of swivel and rotary table is determined by basic principles of fuzzy theory, considering the loads' fuzziness and the requirement for reliability.
考慮鉆機(水)龍頭和轉(zhuǎn)盤主軸承工作載荷的模糊性及可靠性要求，應(yīng)用模糊數(shù)學(xué)基本原理求得平均計算載荷，從而計算出主軸承的模糊可靠性壽命。
Effects of Cast Iron and Chromeplate Tap on Over Night Tap Water Quality;
鑄鐵和鍍鉻(水)龍頭對過夜自來水水質(zhì)的影響
Human-computer interaction problem of tap was discussed from the two aspects: switch device design and flowing angle design.
從開關(guān)裝置設(shè)計和出水角度設(shè)計兩方面探討了(水)龍頭的人機交互問題。