連続焼鈍におけるロール冷却時のストリップ形状不良の考察
1988 年 74 巻 5 号 p. 839-846
詳細
1988 年 74 巻 5 号 p. 839-846
In the operation of continuous annealing lines for thin strips, one of the main problems is to ensure a good flatness especially during roller quenching.
This paper deals with the heat buckling of strip during roller quenching and the pinch defect, namely, folding up of the buckled portion on the roller.
The theoretical analysis on those phenomena is carried out. It allows clarification of those mechanisms, factors and countermeasures.
The pinch index is presented, quantitatively showing the influence of various factors on pinch defects. This index gives the prediction for shape defects in actual operation, and is useful for its prevention and the design of the roller quenching system in the continuous annealing line.
