The Importance of Infrared Sensors for Rolling Mill Processes
Infrared sensors for rolling mill applications play a critical role in the metalworking industry, where rolling mills are used to shape and form metal through the application of pressure. The process involves passing metal billets or slabs through a series of rollers, which reduces their thickness and enhances their mechanical properties. Accurate temperature measurement during this process is essential, as the temperature of the metal significantly affects its malleability and the quality of the final product. By employing non-contact temperature measurement technologies, such as infrared pyrometers, operators can monitor the temperature of the metal in real time as it moves through the mill.
Key Applications of Infrared Sensors for Rolling Mill
Billet Temperature Measurement Before Rolling
- Process Temperature: 1000°C
- Installation of the Pyrometer: Targeted on billet
- Recommended Pyrometer: A450/A250/A450+/A250+
Before Quenching
- Process temperature: 900-950°C
- Installation of the Pyrometer: Before quenching
- Recommended Pyrometer: A250/A450/A250+/A450+
After Quenching at the Cooling Bed
At the cooling bed, temperature equalizing takes place around 600ºC. This makes the surface of the re-bar a hardened structure. The core remains soft. Monitoring and controlling temperature at each stage are important to maintain the quality of Re-Bars. Cooling is an important factor here. To ensure the retention of all the metallurgical properties of the steel the cooling should be fast as well as controlled. Lack of control in the cooling will lead to the formation of scrape/wastage material. This will hamper the quality of the product. Installation of the pyrometer at this level helps in Retention of the metallurgical properties of the steel, helps in monitoring a variety of rod/bars with different diameters and in carrying out continuous temperature measurement.
- Process temperature: 450-500°C
- Installation of the Pyrometer: At the cooling bed
- Recommended Pyrometer: A250/A450/A250+/A450+