How to Prevent Changes in the Roll Gap of Rolling Mills

Have you ever noticed that when using rolling mills to process different metal materials, the metals undergo deformation due to the application of force? Simultaneously, the mill frame and rolls of the rolling mill are subjected to certain forces, resulting in deformation under the influence of these forces. Consequently, this will cause variations in the roll gap, ultimately leading to changes in the dimensions of the rolled products.

This issue requires sufficient attention because if left unattended, it will progressively worsen and eventually cause significant problems.

Therefore, when designing rolling mills, we need to consider this issue to ensure optimal performance. It is essential to ensure that the rolling mill has a sufficiently high rigidity coefficient to minimize negative impacts.

What factors primarily influence this coefficient? In general, the structure and dimensions of the rolling mill, especially the size of the roll system, can affect its rigidity coefficient. Typically, we set the rigidity coefficient to common values and adjust it based on practical needs. Calculations can be used to obtain the required rigidity coefficient, but actual measurements are still necessary.

Two different methods are commonly used for measurements: the plate rolling method and the pressing method. The latter is relatively simpler. Once the rigidity coefficient is determined, we can proceed with the processing according to the expected requirements. This approach resolves the problem of an increased roll gap leading to changes in the processed workpieces.

The above content provides a simple analysis of the main causes of changes in the roll gap of rolling mills and preventive measures. Through this introduction and analysis, it is hoped that everyone has gained a better understanding of these aspects and can effectively address the issue.