1. The "bevelment" problem which occurs frequently during sawing by the fly-saw in 219 mills is examined carefully.It is due to excessive radial pulsation and inferior rigidity of the saw.
   对219机组中飞锯锯切时常出现的管端“斜口”问题进行了仔细的排查，认为锯片的径向跳动值过大和刚度较差是产生切斜的关键。

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