Common problems and maintenance of Section steel hot rolling mill production line

Section steel hot rolling mill production line is a machine equipment that completes the whole process of cold rolling of metal materials. Along with the development trend of technological progress, contemporary cold rolling mills are also developing towards sustainability, automation technology, and systematization. There are many types of rolling mills, and the application industries are common. The rolling mill sometimes has minor problems in the application, how to check and repair it regularly? The following professional and technical personnel of the guide beam rolling mill show to everyone!

Common problems and maintenance of Section steel hot rolling mill production line

Because the section steel hot rolling mill production line is working in a difficult environment, the cold rolling cooling circulating water hits the stewed slab and quickly atomizes during the whole process of work, sandwiching the powdery compound falling from the surface of the slab to the periphery Gushing, hot-rolled steel strip caused a very large impact on the torii of the sound card stand due to the seated bearing. The torii side of the rolling stand and the bottom of the torii of the sound card stand produced different levels of erosion and abrasion of the rolling mill. The gap in the torii gate increases, the standard of the main transmission of the rolling mill is changed, the main transmission system has a large vibration and impact, and the steel castings are very easy to drag when biting, which endangers the control of the plate shape and has a great hazard to the quality of the product.

Most of the section steel hot rolling mill production line materials are general steel casting parts. In long-term service projects, the surface of the dialog box is very susceptible to erosion and abrasion, and the standard malignant changes during work. Generally, online machining and manufacturing methods are used to repair the torii. In other words, according to the mechanical processing and manufacturing, the raw materials are removed, the damage layer of the torii surface is removed and the surface is leveled, and the expanded specifications are compensated according to the thickness of the lifting lining. The actual operation of this kind of repair method is simple and convenient, but the characteristics of the torii noodles have not been changed. After a period of application, the surface of the torii will be eroded and worn out and become invalid. The compressive strength and rigidity of the torii will be affected by several machining operations. Negative impact.

Taking into full consideration the sensitivity of the Section steel hot rolling mill production line to stiffness, there is very little room for production and processing, and this type of repair method is only a dominant plan. The manual argon arc welding can repair the specifications of the expansion of the raw materials after the mechanical processing, but the large-scale argon arc welding on this kind of rigid structure is likely to cause the deformation of the Torii structure. Structural distortion and smooth deformation are fatal, and the inability to correct them is something that is never allowed in the manufacturing process. Therefore, this type of repair method will generate very large risks and is generally not used.