Four-high cold rolling mill operation matters and precautions
1. Preparation before operation.
Adequate preparation must be made before operating a four-high cold rolling mill. First of all, check that the individual parts of the device are intact and installed correctly. Roll system parts, in particular, need to be carefully inspected for damage or deformation. In addition, it is necessary to check whether the hydraulic station, rolling mill body, electrical control system, etc. are normal to avoid accidents during operation.
2. Steps.
1.Start the hydraulic station: Before operating the four-high cold rolling mill, the hydraulic station must be started to ensure that the hydraulic system is working properly.
2.Check the rolling parameters: Before starting the rolling mill, it is necessary to check whether the rolling parameters are correct, including rolling force, rolling speed, opening, etc. The setting of these parameters will directly affect the rolling effect and product quality.
3.Start the rolling mill: After the hydraulic station and rolling parameters are checked correctly, the rolling mill can be started. After the mill starts, it is necessary to observe for a period of time to ensure that the mill is running smoothly and that there are no abnormal sounds and vibrations.
4.Input material: After the mill is running smoothly, the material to be processed can be fed into the mill for rolling. When putting in the material, it is necessary to ensure that the position and orientation of the material are correct to avoid damage to the rolling mill.
5.Adjust the rolling thickness: During the rolling process, the rolling mill needs to be adjusted according to the required thickness of the finished product. The adjustment should be carried out gradually to avoid damage to the rolling mill caused by excessive one-time adjustment.
6.Monitor the rolling process: During the rolling process, it is necessary to pay close attention to the operating status of the equipment and the quality of the product. If an abnormal situation is found, it is necessary to stop the machine immediately for inspection to avoid the expansion of the accident.
3. Precautions.
1.During operation, it is necessary to keep the equipment clean and lubricated to avoid damage to the equipment due to impurities or dry friction.
2.After each shutdown, the equipment should be inspected and maintained, and potential problems should be identified and solved in a timely manner.
3.When adjusting the rolling thickness, it is necessary to adjust gradually according to the maximum load capacity of the equipment to avoid damage to the equipment caused by excessive adjustment.
4.In the process of operation, it is necessary to ensure the safety of the operator and avoid personal injury caused by improper operation. In particular, when dealing with faults or carrying out repairs, it is necessary to comply with the safety operating procedures and never operate at will.
5.For different models of four-high cold rolling mills, there may be differences in the operating steps and precautions. Therefore, the operator must be familiar with the specific operating procedures and precautions of the equipment, and operate in strict accordance with the regulations.
6.When dealing with a breakdown or making repairs, keep calm and composed. Do not operate in a state of emotional agitation or fatigue to avoid accidents caused by operating errors.
7.For the maintenance and maintenance of the equipment, it is necessary to carry out it regularly and make records. Timely replacement of worn parts, lubricating oil and other measures can effectively extend the service life of the equipment.
8.During downtime, the equipment is thoroughly inspected and maintained. For the found faults or problems, it is necessary to deal with and solve them immediately to avoid the accumulation of small problems leading to major failures.
9.Operators need to have the appropriate level of technical knowledge and skills. For unfamiliar or untrained operators, they must be professionally trained before they can be operated.
10.In the production process, it is necessary to ensure that the product quality meets the requirements and remains stable. For unqualified products, it is necessary to deal with them in a timely manner, find out the reasons for improvement, and improve production efficiency and product quality.