Hot-rolled steel is a steel that is heated and rolled at a high temperature. Its strength is not very high, but it is sufficient for our use. Its plasticity and weldability are good, so we are more commonly used; cold-rolled steel is ordinary hot-rolled steel. Steel that has undergone strong drawing beyond the strain hardening stage has high strength, but poor toughness and weldability, and is relatively hard and brittle. Hot rolled is processed at high temperature. Above 1000 degrees, etc., let the steel recrystallize inside. Make it better. But hot rolling does not change the structural properties of the metal.
Continuous hot-dip galvanizing of hot-rolled steel strip is a new process for the production of hot-dip galvanized sheet. The application of this process greatly improves the efficiency of steel strip production and is of great significance for ensuring the quality of steel strip. The production of continuous hot-dip galvanizing of hot-rolled steel strip originated in Japan in the 1970s. This technology is an important innovation to improve the production technology of steel strip. Under the background of people's higher and higher requirements for the quality of hot-dip galvanized sheet, strengthening hot-rolled steel The study of continuous hot-dip galvanizing technology has become an inevitable choice for iron and steel enterprises.
In the decades of development, the production technology of continuous hot-dip galvanizing of hot-rolled steel strip has been developed to varying degrees, but many problems have also accumulated. Solving these problems is to improve the technical level of continuous hot-dip galvanizing of hot-rolled steel strip. inevitable choice. In the increasingly fierce competition in the steel strip market, if iron and steel enterprises want to achieve their own long-term development, they must strengthen the research on the production technology of continuous hot-dip galvanizing of hot-rolled steel strips and realize the innovation of continuous hot-dip galvanizing of hot-rolled steel strips.
Features of hot-rolled products: Hot-rolled products have excellent properties such as high strength, good toughness, easy processing and good weldability, etc., so they are widely used in ships, automobiles, bridges, construction, machinery, pressure vessels and other manufacturing industries.
