roll mandrel

基本解释

The distance between two centers of bottom pinch roll and mandrel;
下夹送辊中心和卷筒中心的相互位置；
Outer cladding metal nearby the fusion interface of roll mandrel experienced the process of solidification-fusion-re-solidification.
辊芯熔合界面附近的外层金属先后经历了凝固、熔化、再凝固的过程。
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The position control of side guider, pinch roll, and mandrel is very important for the whole coil area. It influences directly the success of coiling.
侧导板、夹送辊、卷筒的位置控制对整个卷取区至关重要，直接影响卷取成功与否。