静的シールの設定接触圧力に及ぼす表面粗さの影響 : 第5報, 円すい内側シール面に作用する接線力の影響

概要

論文の詳細を見る
The sealing characteristics between a turned surface of soft material such as copper and a smooth seal face of a rigid steel ball in static contact were investigated. This seal face received not only normal force but also tangential force. The following results were obtained from calculations by using a model that considered a surface roughness on a turned seal face as a wedge-like projection, and gas leak tests. (1) The compressive force for sealing, P_c/l, decreased with a decrease in the conical half angle, θ of seal face. In the case of a surface roughness of 8 μm, the value of P_c/l at θ=15° was about 0.4 times that at θ=60°. (2) The recommended values of θ were in the range from 5° to 35°, and the P_c/l values corresponding to the range were able to be forecast.
一般社団法人日本機械学会の論文
1991-11-25