Date: 2025/7/29
Category: Metallurgical encyclopedia terms
Views: 461
I.Basic Concepts
For instance, a thick steel bar can be rolled and split multiple times to eventually form several thin wires or profiles. This technique reduces the deformation in subsequent processing and enhances material properties, such as grain refinement and strength improvement.
II.Application Scenarios
Steel Production: It is commonly used in the production of small-diameter reinforcing bars and steel wires, especially in the cold-rolling of wire rods.
Cost Optimization: By segmenting the rolling process, energy consumption and equipment load are reduced, making it suitable for large-scale production.
Material Property Control: Multi-stage rolling improves the uniformity and mechanical properties of the material.
III.Key Steps of Pre-rolling
The billet is initially rolled into a shape close to the target cross-section.
Splitting: The billet is divided into 2-4 parts using special rolls or cutting tools, either horizontally or vertically.
Final Rolling: Each of the smaller cross-sections is further rolled to the final size.
IV.Advantages
High Efficiency: Multiple materials can be produced in one rolling process, increasing production capacity.
Stable Quality: Segmental rolling makes it easier to control dimensional accuracy and surface quality.
Low Energy Consumption: Reducing the large deformation of a single material lowers energy consumption.
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