Adjustment of The Inter-Roll Gap of the High-Wire Rolling Mill
1. Introduction
The high-wire rolling mill is a key equipment for continuous production of strip in order to meet the needs of modern industry for high-precision, high-efficiency and large-scale production of thin strip. The adjustment of inter-roll gap of the high-wire rolling mill is a very important part in the production process. It involves dismantling the high-wire rolling mill, inspecting and replacing parts, calibrating the inter-roll gap, and then dismantling and re-installing the equipment.
2. Components
The high-wire rolling mill is composed of various components, including an upper and lower bearing, an upper and lower roller, an upper middle roller, a drive motor, a transmission system, and a roller safety guard. The roller safety guard is used to prevent the injured or crushed metal strips and protect the personnel. The other components help the upper and lower roller and middle roller synchronize and adjust the inter-roll gap and metal strip thickness.
3. Adjustment Steps
1. Power off: At the very beginning, the high-wire rolling mill should be powered off first. All motors and other electrical components should be shut down before performing any operation.
2. Adjusting roller safety guard: After powered off, the safety guard shall be adjusted to the desired height to ensure that it functions properly and the safety of the personnel is ensured at all times during the adjustment.
3. Disassembling the rolling mill: Dismantling the high-wire rolling mill is a very important step in the adjustment process and should be done carefully. The upper and lower roller and the middle roller must be taken out to facilitate the adjustment of inter-roll gap.
4. Inspecting and replacing parts: During the disassembly process, check the parts of the high-wire rolling mill carefully. Replace any worn or damaged parts.
5. Calibrating the inter-roll gap: After all the components have been replaced and inspected, the inter-roll gap can be calibrated by using a roller gap adjusting tool. Care should be taken to ensure the gap is adjusted to the desired width.
6. Reinstalling the rolling mill: After calibration, the upper and lower roller and the middle roller should be reinstalled. Pay special attention to make sure that all components are properly connected and placed before start up.
7. Testing: After reinstalling the high-wire rolling mill, testing should be carried out to make sure that the gap adjustment is done correctly. Metal strips should be run through the mill to ensure proper thickness and the inter-roll gap should be checked to ensure it meets the specifications.
8. Finishing up: Once all the tests are passed and the inter-roll gap adjustments are completed, the high-wire rolling mill should be powered up and adjusted as needed.
4. Conclusion
Adjustment of the inter-roll gap of the high-wire rolling mill is a necessary process during production to ensure that the strip is produced with the necessary precision and efficiency. Adjustment of the gap should be done carefully and with great attention to detail. All components should be inspected and replaced as needed and the gap should be calibrated to the desired width. After the adjustment is completed, testing should be done to make sure that the adjustment is done correctly.
