CNC roll grinding machines play a crucial and irreplaceable role in the production of high-speed wire rods and are core equipment for ensuring the efficient and stable operation of the production line and the quality of the final products. Its role is deeply integrated into the entire production process, which is specifically reflected in the following aspects:
I. Core Function: Ensure the precision of the rolls, thereby guaranteeing the quality of the wire rods and the stability of production
The high-speed wire rod production line features continuous operation and high speed (with a rolling speed of over 120 meters per second), and has extremely high requirements for the precision and stability of the rolls. The core task of a CNC
Roll Grinding Machine is to provide and maintain the "perfect tool" that meets the process requirements for the production line.
1. Precisely form the rolling grooves and control the size and shape of the products
2. Restore the surface condition of the rolling grooves and extend the service life of the rolls
3. Support the development of new roller types and process optimization
II. Key Impacts on the Operational Efficiency of the Production Line
1. Reduce roll changing and downtime: CNC automated grinding is several times more efficient than manual grinding machines, and it can ensure that the dimensions and heights of each side roll in the same set of rolls are consistent. The planned preparation time for changing rolls has been shortened, and due to the reliable quality of the rolls, unplanned downtime caused by roll problems has been reduced.
2. Achieve predictive maintenance: The integrated online measurement system of the grinding machine can accurately record the size of the rolling grooves after each grinding, forming a wear database. The remaining service life of the rolls can be scientifically predicted, thereby arranging the optimal roll replacement plan, transforming from "repair after failure" to "planned prevention", and enhancing the predictability of production.
III. Specific Application Links
In the production of high-speed wire rods, from rough rolling, medium rolling to the most important pre-finishing and finishing mill groups, especially the finishing mills using tungsten carbide roll rings, the precision requirements for the rolls (roll rings) are the highest. The CNC roll grinding machine is mainly used for:
Grinding of tungsten carbide precision roll rings: This is its most advanced application. Tungsten carbide has extremely high hardness and must be precisely ground with diamond grinding wheels to restore its micron-level hole shape accuracy.
Machining and repair of rough and medium rolling grooves for alloy cast iron rolls.
