Introduction to the packaging steel strip thickness control

Packaging steel strip thickness control profile in order to ensure that the finished product thickness to achieve the required accuracy, must be to ensure that the same specifications of a batch of coil target thickness ( Differences in conformity with the national standard or factory standard) , but also to ensure a uniform thickness (volumes of steel strip length With poor) 。 So you need to control & other; A number of coil head thickness & throughout; And & other; Each roll length strip thickness difference & throughout; 。 The two control objectives is actually made up of two completely different but interrelated functions. The precision mainly depends on the thickness of the head thickness set model. Before setting model's mission is to wear in each frame roll gap, speed and tension of presetting ( For the continuous cold rolling and pickling - Mill unit must be under the condition of the steel strip has been in each frame for the roll gap, speed and tension & other; Adjust & throughout; To transition to the other specifications a dynamic gauge change) 。 Hot and cold rolling mills in different wear rate is very low, wear and then accelerated to speed, so the acceleration period is longer, therefore there is an acceleration period of the roll gap, speed, tension adjustment. Eventually the head thickness set depends on the model of the precision and speed of adjustment, moreover because of the cold rolling rolling a coil for a long time, so in a coil dairy process multiple model adaptive, and after the adaptive & other; After setting & throughout; In order to improve the thickness accuracy. The thickness of the strip length precision mainly depends on the stability of the rolling section after the start ( After the or dynamic gauge change) The input of AGC ( Automatic thickness control system) Function.