In order to improve bearing capacity and compactness of the roll system, a method of double circular arc conical surface transition curve for roll neck is put forward.
为了提高轧辊的承载能力和辊系结构的紧凑性，提出了对辊颈双圆弧锥面过渡曲线的优化设计方法。
Roll fracture often takes place in hot rolling section steel. The fracture position is mainly located at the roll caliber, roll neck and boundary between the roll neck and roll body.
热轧型钢过程中经常发生轧辊断裂现象，断裂部位主要在轧辊的孔型处、辊颈处及辊颈与辊身交界处。
Aimed at the wear problem of roll axle neck, failure analysis and rebuilding were made for multi-roller mill.
针对多辊筒碾压机压辊轴颈磨损严重的问题，对其进行了故障分析和改造。
Inhale deeply as you press the spine towards the floor, roll the shoulders away from the ears and slightly lift the head (do not hyper-extend the neck).
深呼吸，脊柱下压，使肩膀远离耳朵并微微抬头（不要完全伸展颈部）。
Inhale deeply as you press the spine towards the floor, roll the shoulders away from the ears and slightly lift the head (do not hyper-extend the neck).
深呼吸，脊柱下压，使肩膀远离耳朵并微微抬头（不要完全伸展颈部）。
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