Rolling Process of Hot Rolling Mills and Precautions for Installation

Generally speaking, the method used in industrial production is hot rolling. The method is simple to operate and has an obvious rolling effect. Therefore, hot rolling was once popular in the production workshops of large factories. In contrast, cold rolling is suitable for the production of high-performance steel sheets and strips, and very thin strips can be produced by the cold rolling process. In addition, the surface quality of cold rolling is very good, and there will be no pitting, oxidation, or other problems. According to the special needs of different users, the strip steel with different roughness can be processed. The products of the cold rolling process have good mechanical and process properties and can be produced efficiently.

Rolling mill single sheet rolling is an early rolling method. The specific operation is to put the steel plates into the rolling mill equipment one by one. After the whole pile of steel plates is rolled, lift it to the front of the rolling mill with a crane, and start the next rolling until it is rolled into the specified finished product size. Although this operation method is often adjusted, it is widely used in actual production because the surface is not easy to be scratched, especially for larger steel plates. There is also a method of coil rolling. After the whole stack of steel plates is rolled once, return to the second rolling one by one. This method can make the size of the rolled product relatively uniform and greatly saves time for roll reversal and pressure adjustment. This effectively increases the output of the cold rolling mill, but sometimes causes scratches between the plates.

For the installation of rolling mill equipment, many people have some small mistakes. These small mistakes may affect the use of rolling mill equipment and cause hidden dangers to the safety of the production process.

Before the installation of the rolling mill, carefully check whether all parts are firm, and remove all obstacles in transportation and storage in time. At the same time, clean the various parts of the rolling mill, remove the stains on the rotating parts, and add lubricating oil.

Before the equipment is installed, the foundation surface should be cleaned. When the rolling mill is installed, it is necessary to carry out a horizontal correction on the foundation surface, which should be adjusted according to the center line of the equipment and leveled in sections.

The height of the centerline of the reducer and the height and vertical deviation of the centerline of the arch is not greater than 0.3mm/m.

After starting the motor normally, test the roller for more than two hours without load, and check the heating condition of the roller bearing and reducer, the temperature must not exceed 60°C.

The reducer mill should rotate smoothly without loud noise and impact.

After the no-load test is normal, it can be carried out according to the rolling process regulations.

During adjustment and trial operation, carefully check whether the bolts of each component are firm and rotate them manually.

In addition, check whether the transmission system is normal. If there is a blockage, the cause must be checked in time to check whether the electrical circuit is normal.

The installation and use of the rolling mill must strictly abide by the standard system, otherwise, safety production accidents are likely to occur.

Luoyang Judian is a professional manufacturer of hot rolling mills. We provide various hot rolling mills for our customers from all over the world. If you have any questions about the hot rolling mills, please don’t hesitate to get in touch with us and we will try our best to help you solve the problems.

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Created on Apr 3rd 2023 01:15. Viewed 121 times.

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