高耐圧仕様防水軸封機構の開発

抄録

To provide rotating machineries with waterproof structures, sealing systems like shaft seals are essential. Although many products are available, few materials are designed to be operated under low speed and high water pressure conditions. In previous studies, new sealing systems with hydrophilic seal lips were developed and showed great sealing performance under the conditions that conventional shaft seals couldn’t sustain its performance. In this reports, fiber reinforcement was introduced to enhance the sealing function or expand its operating area. Two types of cellulose fibers were used as reinforcements. Sealing performance tests were conducted under multi-speed condition and constant pressure of 0.5 MPa. As a result, it was suggested that cellulose nano fiber was a good candidate for the reinforcement of PVF seal lips.