General Requirements for Hot Rolling Production of Long Products
Long products are a type of steel product that is rolled and created in lengths that exceed several meters. They are mostly used in railway tracks, pipelines, bridges, buildings, ships, and other static applications. In the context of hot rolling those products, there are certain requirements which are generally applicable in all the cases. All these requirements ensure process safety and the quality of final product. In this article, we will discuss some of the important general requirements for the hot rolling production of long products.
Firstly, there should be a sufficient length of product in the heat before rolling. This is necessary to ensure that the product is ready to be rolled after it has been heated up to the correct temperature. This requires experience and expertise to determine the desired length of product in the heat.
Secondly, after it has been heated up to the correct temperature, the product should be rolled with the correct speed and proper pressure. The product should be rolled in such a manner that it remains in contact with the rolls for the minimum amount of time required for the deformation.
Thirdly, adequate lubrication should be provided to ensure smooth rolling and minimize the friction between the product and the rolls. The lubricants should also be chosen to ensure optimal results.
Fourthly, the roll gap should be adjusted to the desired level for optimum results. The roll gap should be adjusted so that the product is not either over-rolled or under-rolled. This helps in ensuring consistent quality of the product.
Fifthly, the mill should be regularly maintained to ensure that it is operating in a safe and efficient manner. This includes regularly inspecting the rolls and bearings for any signs of wear or damage along with ensuring that the mill components remain clean and free of any debris.
Lastly, the product should be adequately cooled and stored in a proper manner post-rolling. The cooling process should be such that the final product remains free of defects.
In conclusion, the post discusses important general requirements for the hot rolling production of long products. All these requirements are generally applicable in all the cases and aim to ensure process safety and the quality of final product.
