mill roll used in roughing

Roughing Rolls

Runhao Machinery can customize various models and materials of rollers with a maximum diameter of 2000 millimeters and a maximum weight of 60 tons for customized section steel/bar/wire/plate/strip rolling mills. Rollers for the production of hot-rolled strip with a width below 1450 millimeters can also be customized.

Roughing rolls are pivotal equipment in the production of hot-rolled steel, specifically designed for the initial phase of metal shaping known as "roughing." Here is a detailed overview of these rolls:

Role and Function:

Roughing rolls are primarily employed for the initial shaping of metal billets, reducing their cross-sectional area and forming an optimal starting shape for subsequent processing. This stage is a critical step in the entire hot rolling process.

Types and Structure:

These rolls typically include work rolls and backup rolls. Work rolls directly engage with the metal billet, applying substantial rolling force, while backup rolls provide support and balance, ensuring the stability of the entire roughing process.

Applicable Materials:

Roughing rolls are versatile and suitable for various metal materials, including steel and aluminum. Their design and manufacturing processes take into account the specific characteristics of different materials to ensure effective roughing operations.

Materials and Manufacturing Process:

Due to the high temperatures and intense working conditions, roughing rolls are usually crafted from wear-resistant materials like high-strength alloy steel. Rigorous heat treatment and surface treatments ensure the rolls possess excellent wear resistance and high-temperature stability.

Surface Treatment:

The surfaces of roughing rolls undergo specialized treatments, such as chrome plating, to enhance hardness, reduce friction, extend lifespan, and ensure effective shaping of the metal billet.

Key Design Features:

The design features of roughing rolls enable them to meet the requirements of initial shaping, including the application of substantial rolling force and adaptability to different sizes and shapes of billets.