Sensor Technology: Presence Detection
Slab detection inside a reheating furnace
Detection form the above is difficult due to the presence of water and heavy steam formation. Spurious triggering was caused, which induced alignment errors. Infrared light at longer wavelength. High functional reserve : 1500meters. Easy alignment using 2 LED Home Case Studies Exit slab detection inside reheating furnace Exit slab detection inside reheating furnace Home …
Width Measurement for Camber detection
Home Case Studies Width Measurement for Camber detection Width Measurement for Camber detection Contact based length measurement. Inaccurate and manual process was not practical for continuous casting mill. Non-contact laser distance meter to work on hot surface upto 1300°C. 200°C ambient temperature with water cooling. 3nos of digital output and 1nos of Analog (4-20mA). Works …
Profile temperature measurement for improved strip quality
Home Case Studies Profile temperature measurement Profile temperature measurement for improved strip quality Profile temperature measurement to ensure quality of rolling and prevent cobble Compare edges temperature and centre to adjust the spray headers/ furnace Measure drop out temperature at exit of furnace even in presence of high oxidation Measure the bottom profile temperature to …
Profile temperature measurement for improved strip qualityRead More
Air knife positioning system
Continuous high temperature poses serious challenges to the proximity. 70 °C proximity is unable to survive in this environment, and it fails. Proximity from Proxitron was used for the application of air knife positioning. Home Case Studies Air knife positioning Air knife positioning system Home Case Studies Pilger mill in tube rolling mills …
Reliable roll detection in aggressive environment
High demands are placed on the sensor since rolling emulsions are used for surface finishing. The environment is of very high ambient temperatures. PTFE does not allow water or chemical solvents to stick on its surface and has a high melting point of 423⁰ C. Both F/HF 2/3/4/W constructs with a wide sensing range and …
Automation Crane Coil Grab / Coil Tong
To automate a coil tong, light barriers should be mounted on the lower end of the gripper to safely detect the hole in the coil. The coils can be sometimes up to 600 °C hot. For each coil tong, three light barriers are needed to detect the lower edge and the right and left edges …
Detection of large hollow pipe using proximity sensors
Bouncing effect in the pipe mill mechanically damages the proximity. Circulating trolley systems, cold strip lines, lifting bar conveyors, and other equipment are also used, in addition to roller conveyor systems. Inductive proximity switches were used, which provided safe operation for large sensing distance, and even in the presence of water, dust, emulsions and oils. …
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HMD in pilger mill in tube rolling mills
Continually changing object geometries, different temperatures and very high radiation/ surrounding temperatures. The raw steel blocks, each weighing a few tons are heated up first in a round oven at a temperature of 1300°C. The signal of the infrared sensors controls the movement of centering device and abutment. The point of view is restricted by …
Measurement of mill stand proximity in aluminium mill
Demand for reliable detection of lock and unlock position of the back-up, work, and intermediate roll in high aggressive and high temperature environment. High demands are placed on the sensor leading to frequent proximity failure due to the rolling emulsions which are used for surface finishing. Maximum availability is required for improved productivity Home Case …
Measurement of mill stand proximity in aluminium millRead More
Pinch roll rod detection before laying head
Hot Metal Detector was used for the detection of long product rolling. The sensor’s small spot size is big enough to capture bar fluttering but without sensing crop ends. No water cooling was required as the sensor was provided with a fibre optic cable between the optics and the electronics. Electronics were kept 2m away …
