How can the steel industry improve on quality without breaking the bank? When it comes to hot and cold rolling mills, many factors influence the quality of the product as well as the production life of your equipment.
One of the major consumables in this process is the oil in water emulsion used to spray on the mill rollers to cool, lubricate and improve the finish of the final product, as well as assist with corrosion prevention and control friction.
These emulsions can only perform reliably if their concentration is measured and controlled with high accuracy. In cold strip rolling, variations in the concentration of the emulsion (water/oil ratio) may cause problems during the rolling or downstream processes. A high concentration of oil leads to excessive lubrication, a thick layer of oil on the steel, cooling problems during rolling and problems during annealing. Too low a concentration however, results in insufficient lubrication causing excessive abrasion and impaired corrosion protection.
Online monitoring of the concentration is therefore crucial to ensure the best possible yield of the steel in the milling process. In the process, the liquid emulsion is circulated in a closed circuit and regenerated continuously. The emulsion composition is constantly changing due to the continuous evaporation of water, the oil discharge through the rolling, the penetration of foreign oils or iron particles and dirt. Therefore, monitoring this emulsion is critical to achieving the desired quality.
Morton Controls provides a unique solution to the problem of monitoring this concentration with the SensoTech LiquiSonic Analyser. The instrument measures the concentration of oil in the water emulsion, real-time and online, so that adjustments can be made during the rolling process.
The LiquiSonic sensor is installed after the pump and in the main line to the spray nozzles on the rolling stand. Depending on the system, the pipeline diameter ranges typically from DN 80 to DN 200. Up to four sensors can be connected, allowing the simultaneous monitoring of several measuring points of the tandem mill. In addition, one controller can also administrate several sensors in different mills as the distance between the sensor and controller can be up to 1000 m.
Read more...Food safety – a matter of weight
Sensors & Transducers
Weighing systems play a key role in ensuring product quality in food production, complying with legal requirements and avoiding product recalls. The Minebea Intec MiNexx portfolio has been specially developed to meet these requirements.
Read more...Telco sensors in the paper and pulp industry
Sensors & Transducers
The paper and pulp industry poses a major problem for most photoelectric sensors. Telco Sensors has overcome this with its powerful and high-performance photoelectric sensors, ensuring penetration of thick and harsh pollution while guaranteeing reliable detection.
Read more...Leaders in sensor technology Gail Norton Instrumentation
Sensors & Transducers
A new addition to the Telco Sensors range is the adjustable Proximity sensor, with a range up to 5 metres.
Read more...Cutting-edge sensor technology Endress+Hauser South Africa
Sensors & Transducers
The advantage of Endress+Hauser’s Memosens technology is that digitised measured values and sensor information are transmitted via a non-contact connection from the sensor to the cable, and as a digital signal to the transmitter.
Read more...Miniature inductive sensors ifm - South Africa
Sensors & Transducers
The inductive IY/IZ type sensors from ifm are used in various industrial areas where space is limited.
Read more...PDS implementation on mines
Sensors & Transducers
Level 9 vehicle intervention for collision avoidance has been mandatory on South African mines since 2022, yet the effective roll-out of proximity detection systems remains slower than expected. This is not due to the technical limitations of integration but to operational readiness on site.
Read more...Monitoring analogue process values ifm - South Africa
Sensors & Transducers
Everywhere in industry, electronic sensors are used to detect process values such as temperature, pressure or flow. Process value monitoring often takes place directly in the sensor.
Read more...Protecting buildings’ embodied carbon with retrofitted systems Schneider Electric South Africa
Sensors & Transducers
The World Economic Forum has said that around 80% of the buildings in existence will still be around in 2050; it is therefore essential that in order to combat climate change we retrofit them for energy efficiency.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version