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Steel cleanliness is very important prior to any steel coating process. A novel online cleanliness sensor for steel flat products has been designed. Sensor is based in the optical reflectivity of the dirty steel, which has been analyzed to determine how the incident light beam is dispersed. Lamination/processing steel marks effect on the light dispersion was quantified to be able to design the optical...
Speed and differential speed measurements are necessary for almost all of manufacturing steel processes. Use of incremental rotary encoder is the cheapest method for this purpose. Classical theoretical algorithms are analyzed in terms of error and sampling time. These methods are used for a Temper mill real case, showing the practical limitations in both speed and differential speed. A new differential...
Chocks Temperature Control is a very important issue in roll life. High temperatures in the chocks can damage the bearings and even start a fire in the mill. Traditional wired systems don't offer satisfactory results, in practical use. Using Zigbee (802.15.4) wireless technology, due to its very low power consumption, temperature sensors (up to 125oC) suitable for a tandem cold mill environment have...
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