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医疗器械电动石膏锯机上的锯片,系由0.8mm厚的T8A钢片冲切而成,锯齿左右扳开。使用中每分钟往复摆动两万次以上,平整度要求比较严格。锯片外形有圆形与斧形,每种又有不同直径尺寸,最大93.5mm,外径越大,越易导致翘曲变形。锯片在淬火前就已存在冷加工残余内应力,一浸入盐浴中就产生翘曲变形,淬火时
Medical equipment Electric plaster Saw blade sawing machine, the Department of 0.8mm thick T8A steel punching made of sawtooth left open. The use of reciprocating swing every minute more than 20,000 times, flatness requirements more stringent. Saw blade shape with a round and ax-shaped, each with a different diameter size, the largest 93.5mm, the greater the outer diameter, the more easily lead to warping deformation. Saw blade quenching has existed in the cold residual stress, immersion in a salt bath to produce warping deformation, quenching