Rolling speed and calculation

Rolling speed is an important process parameter in the production of steel strips. When the rolling speed is too fast, the strip can be too thin and the surface can be damaged. On the contrary, if the rolling speed is too slow, the lubrication function will be weakened, the rolling force and the power consumption will increase, and the production rate will be too low. Therefore, the calculation of rolling speed is a key factor to ensure the quality and production rate of steel strips.

In order to accurately calculate the required rolling speed, the following parameters should be taken into account: strip material, mill diameter, strip thickness, rolling force, strip temperature and lubrication conditions.

The first step in calculating the roll speed is to determine the strip material. The strip material is critical to the calculation of rolling speed. Different strip materials have different initial conditions, such as hardness and yield point. Therefore, it is necessary to select the corresponding strip material according to design requirements.

The second step is to determine the mill diameter. In modern hot strip mills, the mill diameter can range from 350 mm to 2300 mm. The larger the mill diameter is, the higher the production speed is.

The third step is to determine the strip thickness. This is probably the most important parameter when it comes to calculating the rolling speed. By changing the strip thickness, it is possible to obtain different strip speeds.

The fourth step is to determine the amount of rolling force. The rolling force is also an important factor. Generally speaking, the higher the rolling force, the higher the speed. However, when the rolling force exceeds the yield point of the strip material, the strip will be deformed and the quality can be affected.

The fifth step is to determine the strip temperature. The strip temperature is also an important factor affecting rolling speed. High temperature can increase the softening of the workpiece, reduce the rolling speed, and increase the power consumption, while low temperature can make the workpiece hard, increase the mill stiffness, and increase the rolling speed.

Finally, the sixth step is to determine the lubrication condition. The lubrication structure of the workpiece can increase the workpieces lubricity and reduce its friction. In this way, the roll speed can be increased and the power consumption can be reduced.

In short, the key to successfully calculating the rolling speed is to accurately determine all the parameters mentioned above. Once these parameters have been determined, the required rolling speed can be calculated using the appropriate mathematical formula. As long as all parameters are accurately calculated, the rolling speed should be able to achieve the desired results.

The rolling speed of the rolling mill is an important parameter for the quality of cold-rolled steel plate production. In order to ensure the accuracy of the plate thickness, the rolling speed of the rolling mill must be strictly controlled. The rolling speed of the rolling mill is mainly determined by the upper speed limit of the deformation zone. Different materials have different strain hardening and different power consumption in the process of rolling. In the process of rolling steel, the force of difficult deformation of the strain hardening zone and the power consumption are higher. In order to ensure the accuracy of the thickness of the steel plate, the rolling speed of the rolling mill should be controlled as far as possible, and the deformation zone should not exceed the upper limit speed determined by the rolling force. At the same time, according to the comprehensive consideration of the power consumption and the requirement of the thickness accuracy, the rolling speed of the rolling mill should be moderate, so that the rolling effect of the steel plate is more favorable.