HYDROSTATIC END-FACE PACKING

摘要

FIELD: mechanical engineering. SUBSTANCE: axially movable packing ring is made with stepped axial joint and annular channel. Packing ring consists of sealing member and external bushing. Sealing member is made of aluminum alloy with layer of aluminum oxide on friction surface. Aluminum oxide is formed by method of microarc oxidation. EFFECT: increased packing reliability. 3 cl, 1 dwg