Hot Rolled Steel for Elevator Guide Rail
Steel is mainly used as a structural material in the manufacture of elevators, and hot rolled steel is one of the most commonly used materials. Hot rolled strip steel is required to conform to the quality and dimensions specified in national standards (YB/T 157-1999). In this article, the production process of hot rolled steel, the application of hot rolled steel and its quality requirements in the elevator industry will be described in detail.
Hot rolled steel is manufactured from cast steel billets. The steel billets are heated, and then put into roughing mills which roll them into slabs. The slabs are then sent to the finishing mills. The finishing mills process the slabs into strips with various specifications according to customer requirements. In the process, the steel strip is rolled into strip steel with predetermined dimensions and shapes. After the strip steel is rolled, the surface of the strip steel is eliminated by pickling, high pressure water descaling, hot-rolled grinding and oiling.
Hot rolled strip steel is widely used in the manufacturing of elevators. This type of steel is used for the manufacture of elevator guide rails, elevator mainframes, ramps and other structural components. The use of hot rolled steel can make the structure of the elevator more stable and reliable, which can ensure the normal operation of the elevator. In addition, the use of hot rolled steel can also effectively reduce the weight of the elevator and reduce the cost.
In order to ensure the quality of hot rolled steel used in the elevator industry, strict quality requirements must be met. The quality of the material must comply with the requirements of the national standard YB/T 157-1999. The material must be free of surface cracks, scratches and other defects; the material must be free of non-metallic inclusions, represent a homogeneous structure, and have sufficient strength and plasticity; the Tensile strength, elongation and other mechanical properties must meet the requirements of the national standard. In addition, the hot rolling process must be strictly controlled to ensure the dimensional accuracy of the steel strip.
In conclusion, hot rolled steel is an essential material for the manufacture of elevators. This type of steel has good mechanical properties and can effectively reduce the cost of elevators. In order to ensure the quality of hot rolled steel used in the elevator industry, strict requirements must be met in terms of material quality, mechanical properties and dimensional accuracy.
