The Concept And Process Of Rolling Mill
Steel is widely used in our daily lives and holds a critical position in the national economy and most of the steel products we need are produced by rolling mills. The rolling process plays an important role as the final link of the steel-making process in modern steel enterprises.
Steel rolling, as its name, is a process of shaping the steel billet with rollers. And the rolling mill is what you need to get the job done. The complete rolling production process contains a series of different rolling techniques and it can be complicated. However, despite all those various requirements, the basic production process always contains the following procedures: reheating the steel billet and further treatments, rolling process, and the final finishing rolling process.
When the billets arrive, they need to be treated with chemicals like acids to remove the oxidation film and the obvious defects on the surface must be removed too. Then the billets will be reheated to a certain temperature to be ready for the coming rolling process. The rolling process is the core of this whole production, the billets will be rolled into different shapes and the rolling technique is crucial for the quality of the final product. It must meet the requirements from three different aspects: the product’s geometry dimension accuracy, internal organization, and performance, and clean and smooth surface.
After all these processes, the product still has a complicated finishing rolling process. As a guarantee of the product, the finishing process can be different for the various requirements and standards. After the cooling, straightening, heat treatment, and other certain process procedures, the final product will meet all those customized requirements.
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