静的シールの設定接触圧力に及ぼす表面粗さの影響 : 第4報, ナイフエッジシールのシール特性

概要

論文の詳細を見る
In this paper, the seal mechanism of knife edge seals was explained and then a new type of a knife edge was developed. The following results were obtained. (1) The seal mechanism of knife edge seals was divided into the following three types according to the width of the flat land on the apex of the knife edge. (a) The penetration type, (b) the indentation type, and (c) the intermediate type. The PC/l-values of the compressive force for sealing were the lowest in the case of the (a) type. (2) The developed knife edge had the seal mechanism of the penetration type in the case of (a). The Pc-values of contact pressure for sealing were nearly equal to the Meyer hardness in the seal surface layer, regardless of both the surface roughness and the finishing of the seal face. In the case of the seal material of copper, carbon steel and stainless steel, the Pc/l-values were approximately 15-40, 45-110 and 80-190kN/m, respectively.
一般社団法人日本機械学会の論文
1991-05-25