One Driven Two Continuous Rolling Mill Unit

One Driven Two Rolling Mill Unit:

One driven two rolling mill unit is a crucial component in hot rolling production lines, typically composed of a roughing mill group (roughing mill) and two finishing mill groups (finishing mills). This configuration allows for further rolling after the initial roughing through two independent finishing mill groups, achieving higher rolling precision and surface quality. Here is a detailed overview of the one driven two rolling mill unit:

1. Roughing Mill Group:

Structural Features: The roughing mill group consists of three sets of rolls—upper, middle, and lower. Rolls are typically made of high-strength alloy tool steel to ensure sufficient hardness and wear resistance.

Operating Principle: Steel billets pass through the gap between the upper and middle rolls. Through the rotation and compression of the rolls, the initial plastic deformation of the steel billet is achieved, gradually reducing its thickness.

Roll Gap Adjustment: Equipped with an advanced roll gap adjustment mechanism, the width of the gap can be precisely controlled to accommodate different specifications and requirements of hot-rolled steel billets.

2. Finishing Mill Group (1):

Structural Features: The first finishing mill group typically includes upper and lower sets of rolls. These rolls are often made of high-quality tool steel or hard alloy rolls to ensure high-precision rolling.

Operating Principle: After the initial rolling in the roughing mill group, the steel billets enter the first finishing mill group. Here, through the rotation and compression of the upper and lower rolls, further plastic deformation is achieved, resulting in a more refined and uniform thickness.

3. Finishing Mill Group (2):

Structural Features: The second finishing mill group is similar to the first, also comprising upper and lower sets of rolls, using high-quality tool steel or hard alloy rolls.

Operating Principle: After the first finishing mill group's rolling, the steel billets enter the second finishing mill group. Continuous rolling through two independent finishing mill groups allows for even higher rolling precision and surface quality.

4. Advantages and Characteristics:

Efficient Production: Through continuous roughing and two finishing processes, the unit achieves efficient production.

Extremely High-Precision Rolling: Two independent finishing mills allow for more rolling adjustments, achieving extremely high rolling precision.

Versatility: Adaptable to various types and specifications of hot-rolled steel billets, demonstrating strong production flexibility.

5. Application Areas:

One driven two rolling mill units are widely used in the production of products with extremely high surface requirements and requiring higher rolling precision, such as automotive plates, high-end building materials, etc.

6. Considerations:

Maintenance: Regular maintenance of equipment, including inspections and lubrication of rolls, is essential to ensure stable and prolonged operation.

Safety Operations: Operators must adhere to strict operational procedures and safety standards to ensure a secure production process.

One driven two rolling mill unit plays a crucial role in hot rolling production lines, achieving higher levels of rolling precision and surface quality through additional rolling processes.