press ring meaning in English

加压环

Compared with those of as - sprayed ring , hardness and tension strength of area near processing face are increased by 45 % and 40 % respectively . friction mechanical performance of the ring is improved at large extent , and especially the wearing amount is merely 13 % of as - sprayed rings . after dual - direction cyclic pressing , the pore - closed state and the distributing of density and hardness are nearly identical in every part of ring . the friction mechanical property is close to that of single - direction - cyclic - press ring
靠近压力加工面部位,硬度较沉积坯提高了45 % ,拉伸强度较沉积坯提高了40 % 。双向楔压后孔洞闭合、密度硬度分布都比较均匀。单向楔压后,用压力加工面作为摩擦面, al - 20 % si / sicp复合材料的摩擦磨损性能得到大幅度提高,尤其磨损量为楔压前的13 % 。