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目前,国内磨床砂轮主轴上高速轴承用的保持架几乎全部是酚醛布基塑料管材(胶布管),它是用棉布浸渍酚醛树脂,然后加热卷压成管,再将管经过浸油,切削加工,窜去毛刺等多道工序,制成保持架。这样的保持架由于毛坯管材成型复杂,加工工序多(至少5道),材料利用率低(约40%),因此成本高。加一个36205轴承的酚醛胶布保持架,洛阳轴承厂出厂价格为1.9元,而一个36208轴承的酚醛胶布保持架,则为2.7元(对本课题研究有成效的聚砜改性料,
At present, almost all of the cages for high-speed bearings on the grinding wheel spindle in the domestic grinding machine are phenolic cloth-based plastic pipe (cloth tape tube) impregnated with phenolic resin with cotton cloth, then heated and rolled into a tube, and the tube is immersed in oil and cut , Channeling to burrs and other processes, made of cage. Such a cage is costly due to the complexity of forming the rough tube, the number of processing steps (at least 5), and the low material utilization (about 40%). Plus a 36205 bearing phenolic tape retainer, Luoyang Bearing Factory ex-factory price of 1.9 yuan, while a 36208 bearing phenolic tape cages, compared to 2.7 yuan (on the subject of effective polysulfone modified materials,