Section steel hot rolling mill production line process flow

The billet from the steel mill is only a semi-finished product, and it must be rolled in a hot rolling mill to become a qualified product. The continuous casting billet sent from the steelmaking plant first enters the heating furnace, and then enters the finishing rolling mill after repeated rolling in the rough rolling mill. Rolled steel belongs to metal pressure processing. Simply put, rolled steel is like pressing noodles. After multiple squeezing and pushing with a rolling pin, the thinner the noodles. In the Section steel hot rolling mill production line, the rolled billet is heated and softened, sent to the rolling mill through the roller table, and finally rolled to the size required by the user.

The section steel hot rolling mill production line is a continuous and uninterrupted operation. The steel belt runs quickly on the roller table. The equipment is highly automated and efficient. Steel ingots from the open hearth can also be made into steel plates, but they must first be heated and rolled, and then sent to the Section steel hot rolling mill production line for rolling. In this process, switching to continuous casting billet requires It is much simpler. Normally, the thickness of the continuous cast steel billets is 150-250 mm. After dephosphorization and blooming, they enter the rolling mill through the roller table.

The finishing mill consists of seven four-high rolling mills, with speed measuring rolls and flying shears installed in front of the rolling mill to cut off the head of the steel plate surface. The finishing mill speed can reach 23m/s. Hot-rolled products are divided into steel coils and steel ingots. The thickness of hot-rolled rails is usually a few millimeters. If users require thinner steel plates, they will be further cold-rolled by cold rolling mills.

Section steel hot rolling mill production line uses ceramics to manufacture wear-resistant parts, not just cemented carbide (tungsten carbide) and high chromium cast iron. Ceramic materials not only can withstand higher temperatures, but also have particularly good corrosion resistance, so when materials with comparable temperatures are subjected to high-speed impact, they have good wear resistance. At present, the section steel hot rolling mill production line produced by general manufacturers is made of cemented carbide and high chromium cast iron materials, which are unstable in quality, easy to corrode and wear, and are easily broken by metal pieces. Because of the use of sand and gravel yards There is a clear gap between domestic and foreign products of crushing equipment, and domestic high-end markets, such as large sand and gravel yards, are still dominated by imported equipment.