Detailed Explanation of the Forming Process for Hot-Rolled Pulleys
Post Time：2016-01-26
Hot rolling refers to a process where the alloy is softened at a temperature higher than the recrystallization temperature of the metal alloy and then formed into a sheet or billet-shaped cross-section under the action of pressure rollers. Although its physical shape changes, the physical properties of the alloy remain unchanged. The processing of hot-rolled pulleys does not only involve hot rolling; there are also a series of subsequent processing procedures to enhance the pulley's strength and improve dimensional accuracy.
After hot rolling, the alloy material needs to undergo cold rolling to alter its physical properties, making its performance more in line with the actual requirements of pulley applications. The cold rolling process involves recrystallizing materials that have undergone hot rolling and other processes. At a temperature lower than the recrystallization temperature, pressure rollers are used to further roll the material while allowing it to recrystallize as intended. After repeated cycles of cold pressing – recrystallization – annealing – cold pressing (repeated 2 to 3 times), the metal molecules in the material are altered, forming an alloy material with higher strength and changed physical properties. Therefore, hot-rolled pulleys have excellent surface quality, and their product precision is higher than the specified dimensional standards. Additionally, after being processed by hot rolling and other technologies, the product's performance and characteristics can meet certain special functional requirements.
In industrial production, the processing of hot-rolled pulleys is mainly carried out through the aforementioned processes, which play a significant role in improving product quality. Currently, pulley products have been widely used in fields such as small machinery and automobiles, and have broad development prospects in applications for heavy lifting equipment.
