论文部分内容阅读
目前,国内外履带式拖拉机、推土机和多种工程机械车辆中,均先后采用使用寿命长密封可靠的浮式油封。我厂为了解决适应浮式油封高硬度、高耐磨性要求,研究试制了用75％Al_2O_3陶瓷材料制做浮式油封。 75％Al_2O_3陶瓷材料矿藏丰富,来源广,价格低廉。制作浮式油封成型烧成容易,研磨即成,比用合金铸铁节约材料,节省工时。 75％Al_2O_3陶瓷材料兼有耐高温、高强度、耐磨损、耐腐蚀、抗氧化、电绝缘性和真空气密性,对气氛不敏感。脆性比其它高铝瓷好些,能承受较高的压应力。
At present, both domestic and foreign crawler tractors, bulldozers and a variety of construction machinery vehicles, have adopted a long-life sealed floating oil seal. In order to solve the problem of adapting to the high hardness and high wear resistance of the floating oil seal, our factory made a trial production of floating oil seal with 75% Al 2 O 3 ceramic material. 75% Al 2 O 3 ceramic material rich in minerals, wide source, low prices. Production of floating seal easy to burn, grinding Serve, than the alloy cast iron to save material, save working hours. 75% Al_2O_3 ceramic material both high temperature, high strength, abrasion resistance, corrosion resistance, oxidation resistance, electrical insulation and vacuum tightness, insensitive to the atmosphere. Brittle better than other high-alumina, can withstand higher compressive stress.