Steel has become the first choice for manufacturing corrugated rollers because of its high cost performance. Steel is an alloy forged by adding a proper amount of carbon to iron, and other elements such as manganese, chromium, molybdenum, silicon and lithium can also be added, so that alloy steel can obtain some special properties. The final specification of steel used for manufacturing corrugated rollers depends on the material selection standards of each supplier. Suppliers must take into account the relevant laws and regulations on the production of such pressure vessels and the cost, performance and market supply of the materials used. The production process of steel is to melt cast iron and then add alloying elements, and then pour molten steel into the steel mold to solidify it into a ingot weighing 5 tons. This ingot is heated and forged into a cylindrical billet, which is the blank of the corrugated roller.
the high-quality corrugated roller is made of solid forgings. This casting process (including hot-rolled billet) can change and densify the texture structure of steel, thereby enhancing the density and strength of steel and improving its stability. Stability plays a very important role in the subsequent processing (such as heat treatment). It can ensure that the roller body will not be distorted.
when steel ingots are processed into steel blocks, billets and steel plates, all steels have undergone different degrees of forging. Next, the ingot will be drawn for final forming. In this way, all insoluble impurities in the steel (impurities will be concentrated in the center of the ingot in the initial forging) will be retained and become a part of the finished corrugated roller. Microscopically, these impurities show fiber texture, which is very similar to the texture structure in wood. However, the structure of cork and hardwood is different: the texture of hardwood is smooth and tight, while that of cork is loose. Similarly, the steel with smooth and dense texture formed after tempering has higher hardness and is a high-quality material for making corrugated rollers.