Common Problems and Solutions of Laying Head in High-speed Wire Rod Rolling Mill Producing Process
1. Laying Head Tail Flicking
Laying head tail flicking refers to the phenomenon that the tail of the wire rod can not spit out smoothly from the laying head tube and collide with the laying head disk with high-speed rotation.
The reason is that the tail of the wire rod coil does not have enough speed and force to make the tail of the coil throw out smoothly from the laying head tube. The solution is to prolong the clamping time at the tail of the pinch roll and appropriately improve the clamping speed.
Another is to change the throwing angle of the outlet section of the laying head tube to reduce the resistance during throwing, so that the tail of the coil can be thrown smoothly.
2. Laying Head Spit Large and Small Circles
spit large and small circles refers to the different diameters of the coils spit out by the wire rod mill laying head, which is mainly due to the unstable tension between the pinch roll and the wire rod mill laying head.
The solution should start from two aspects: First, maintain the stable clamping of pinch roll. When the clamping state is poor, the speed of the pinch roll is not constant. Second, the laying head pipe may wear out a deep track and should be replaced in time.
3. The Wire Rod Coil of Wire Rod Mill Laying Head is Oval
When producing small-size wire rod and the spinning temperature is too high, it is easy to appear circle oval phenomenon, because the wire rod is relatively soft.
In addition, when the height of the air-cooled roller table is too low and the falling distance of the coil discharged by the spinning machine is too large, it is also easy to appear elliptical.
At this time, the turning plate at the outlet of the laying head can be adjusted and its inclination angle can be appropriately reduced. The coil discharged by the wire rod laying head falls on the turning plate slowly first, and then on the roller table.
In this way, it can ensure that the wire rod coil shape falls evenly in the center of the roller table, and it is not easy to produce an elliptical ring shape.
Please contact stella@hanrm.com for a quotation.
And free send inquiry to us.
Email: stella@hanrm.com stellarollingmill@gmail.com
Whatsapp/Wechat:+8615877652925
