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.
Proven indicators monitored in three dimensions ifm - South Africa
Temperature Measurement
The VVB30x continuously detects vibrations in three measurement axes and uses them to calculate proven indicators for evaluating machine condition.
Read more...Three ways to conduct thermal inspections Comtest
Temperature Measurement
There’s no universal solution for all infrared inspections with a Fluke thermal camera, also known as a thermal imager. You need to match your method to the type of equipment you’re inspecting and the level of detail you require.
Read more...Modern N1020 temperature controller
Temperature Measurement
Temperature control is a fundamental aspect of maintaining the integrity and quality of products in industries such as food processing, pharmaceuticals and healthcare. The N1020 temperature controller, designed for precision and reliability, addresses the stringent requirements of these sectors by offering advanced features and robust functionality.
Read more...Safer, simpler temperature measurement ABB South Africa
Temperature Measurement
ABB has launched an enhanced version of its NINVA TSP341-N non-invasive temperature sensor, delivering safer and simpler temperature measurements for applications in the chemical, oil and gas industries.
Read more...Smart high-precision pyrometers
Temperature Measurement
LAND, a business of AMETEK, has expanded its range of SPOT+ smart high-precision pyrometers with the launch of the M390, M3-5 and TMT for wider temperature measurement capabilities.
Read more...Detecting lubrication issues in gearbox testing by IR monitoring
Temperature Measurement
Lubrication is crucial for every transmission gearbox. Thermal imaging cameras such as Instrotech’s PI 640i can quickly and accurately detect temperature variations to ensure that gearboxes are appropriately lubricated.
Read more...Is the HVAC market in SA missing the big picture? Iritron
Temperature Measurement
The South African HVAC market is currently grappling with a pervasive mindset that prioritises lowest cost over value for money and technical excellence. However, this approach overlooks the significant benefits that come with investing in high-quality HVAC solutions.
Read more...Temperature monitoring in dairies ifm - South Africa
Temperature Measurement
Milk is a natural product whose processing requires precise temperature settings. The Berchtesgadener Land dairy uses innovative temperature sensors from ifm in key process areas.
printer friendly version