Typical Features And Common Types Of Cold Rolling Machines

The cold rolling machine, as the core equipment for metal plastic processing, has the following typical characteristics and common model classifications:
1. Core characteristics
High precision control
The cold rolling process can achieve a thickness tolerance of 0.01-0.03 millimeters, and the surface finish can reach a mirror-like effect. It is suitable for metal processing with strict requirements for dimensional accuracy. The hydraulic servo system dynamically adjusts the roll gap through closed-loop control and cooperates with the thickness automatic control system to achieve millimeter-level precision adjustment.
Material performance optimization
During normal temperature rolling, the deformation of the metal lattice leads to an increase in strength and hardness, but a decrease in plasticity. It is necessary to restore the performance through subsequent annealing. Advanced rolling processes such as CVC technology can effectively improve the edge thinning effect of the material.
High efficiency and energy-saving advantages
Compared with hot rolling, cold rolling does not require a heating process, avoiding the defect of iron oxide scale, and has a faster forming speed and higher output. The emulsified liquid jet system can simultaneously achieve cooling and lubrication, reducing the wear of the rolls.
Wide process adaptability
It can process all series of 1-8 aluminum alloys, with the maximum finished width reaching 2650mm and the minimum export thickness down to 0.1mm. The six-roll rolling machine compensates for thermal deformation through bending roll technology, enhancing the forming ability of complex sections.
2. Common model classifications
Four-stage irreversible cold rolling machine
Representative models include 360/800×1450, 380/960×1600, etc. The working rolls and supporting rolls are combined to achieve stable rolling, with a maximum roll weight of up to 13000kg.
Six-roll cold rolling machine
Such as the SMS six-roll model, which uses the cross-movement technology of the middle roll to eliminate the edge effect, with a minimum export thickness of 0.1mm, suitable for high-precision aluminum sheet production.
Pilger cold rolling tube machine
It is specifically used for high-precision seamless tube production. It realizes the reciprocating rolling of the tube wall by the combination of rolls and mandrels, and the products have the characteristics of smooth surface and flexible specification customization.
Steel bar dedicated cold rolling machine
For the processing of 5-12mm ribbed steel bars, it enhances the mechanical properties of building materials by forming the rib pattern of the rolls.
3. Technical extension
The development of cold rolling machines shows an intelligent trend. For example, the Profibus DP network integrates a three-level automation architecture to achieve high-speed response in transmission control and process control. However, it should be noted that the cold rolling opening section has weak torsional resistance and limited local load-bearing capacity.