In the building industry, there is a product used that is commonly referred to as pressboard, also known as chipboard. Sheets of pressboard are typically 1,2 m x 2,4 m in size and are used in the construction of walls, sub-floors and rooftops, as well as underneath real wood veneers for low cost furniture manufacturing. To make this board, the mill chips up logs and all the scraps that are left from making lumber and other wood products. The chips are literally glued together and formed into sheets, which can have different thicknesses, depending on use. To bond the material together, the board is pressed between two heated rollers. The boards are then heated to between 100°C and 200°C.
One problem that can develop with this process is that some of the chips can protrude up through the surface of the board and get so hot that they begin to burn. The hotspot can be as small as 7,5 mm in diameter on boards that are moving about 120 m/min. Spots can be on both the top and bottom of the board. If this is not detected, the board with the burning spot can be placed on a stack with others and moved into storage. This can lead to a fire and even total destruction of the warehouse – all from one single board with a burning spot that was undetected prior to storage.
To detect these burning chips, two ThermoView TV40 thermal cameras can be installed, one to monitor the top surface and a second camera for monitoring the bottom of the board. An area of interest (AOI) is set up to monitor the entire width of the board. When a camera sees a hotspot of 120ºC or greater, an alarm is triggered so the board can be moved off to the side for cooling. After cooling, the board is returned to the stack for storage.
One sensor, three switchable output modes with IO-Link
Temperature Measurement
: Siemens’ new Sitrans TS200 IO-Link temperature sensor is available in three sizes, and offers three switchable output modes in one device with remote firmware update capability and an integrated LED for quick status checks.
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Temperature Measurement
SCE has been appointed the authorised Vaisala distributor for South Africa, giving local engineers direct access to world-class humidity, temperature and CO2 measurement technology backed by full in-country calibration and technical support.
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Temperature Measurement
Precise temperature characteristics are essential for performing power cycling tests on power semiconductors. Infineon Technologies determines these characteristic curves on a test bench using PC-based control. As a result, calibration has become more precise and the efficiency of the entire test laboratory has increased significantly.
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Temperature Measurement
Effective fire prevention strategies focus on identifying, reducing and managing fire risks before they become incidents. Through proactive measures, planning and reliable detection technologies, organisations can create safer environments and minimise the likelihood of fire outbreaks.
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Temperature Measurement
Vital Products was looking for a precise and efficient solution to check the weight and ensure the completeness of its products. Minebea Intec, a specialist in industrial weighing and inspection technologies, was able to provide a solution.
Read more...Infrared solutions for glass manufacturing challenges Instrotech
Temperature Measurement
In the glass industry, infrared temperature monitoring is crucial for maintaining product quality and process efficiency. Instrotech has infrared sensors and cameras which provide non-contact temperature measurements, making them ideal for these high-temperature environments.
Read more...Decarbonising a heat and power plant Valmet South Africa
Temperature Measurement
Valmet is delivering a boiler fuel conversion for a combined heat and power plant in Poland. After modernisation, coal will be replaced entirely with certified forest biomass supplied by local providers.
Read more...New temperature transmitters with Profibus connectivity
Temperature Measurement
Siemens is enhancing its temperature measuring device portfolio with the transmitter duo, Sitrans TH420 PA and Sitrans TF420 PA. Both devices feature Profibus connectivity, advanced safety functions and expedited commissioning all in one unit.
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