The device places the test plate in parallel in the wind tunnel, the wind speed control accuracy is 3 +/- 0.3m/s, the drying time is automatically controlled, and the surface crazing can be visually inspected, which is suitable for the evaluation of coating anti-crack performance.
The wind speed is controlled in the range of 3 +/- 0.3m/s, equipped with axial flow fan and automatic timing function, which can simulate the drying process under specified conditions and effectively detect the surface crazing of the material.
The device provides 3 +/- 0.3m/s wind speed through axial flow fan in wind tunnel, Timer delay range of 0.01 seconds to 99 hours 99 minutes, can automatically control drying time and eye test plate surface crazing, support parallel test.
Friction speed 0~ 135cpm, Test Travel 155mm, round-trip count 0~ 9999, suitable for accurate determination of sanding performance of undercoat and putty.
Using axial flow fan and test wind tunnel structure, the wind speed can be adjusted in the range of 3 +/- 0.3m/s, equipped with Timer delay range of 0.01 seconds to 99 hours and 99 minutes, automatic detection of material surface crazing.
Adopting axial flow fan to supply air, the wind speed can be adjusted steplessly, the wind speed in the wind tunnel is 3 +/- 0.3m/s, and it is equipped with Handheld AnemoMeter measurement, which is suitable for coating drying anti-crack performance testing.
Adopting stepless speed regulation technology, the friction speed range is 0~ 135cpm, the test Travel 155mm, the number of times can be set and automatically counted to evaluate the sanding performance of undercoated putty.
Easy to use magnetic suction Cup loading and unloading, sanding times 0~ 9999 two-way count, friction load 570 +/- 20g, additional weight adjustment load, suitable for undercoating and putty anti-sanding performance test.
High Accuracy stepper motor, speed range 0-135 times/min, test stroke 155mm, equipped with manual suction Cup and a variety of weights, can be freely set the number of times 0-9999.
The equipment can detect the crazing or peeling of the putty film after bending, equipped with R25 and R50 support film specifications, shaft Rod size is 50mm and 100mm in diaMeter, suitable for 0.2-0. 3mm thick tinplate plate.
The motor-driven edge rises at a rate of 3mm/min to generate and control crazing expansion, which can detect the crazing ability of putty against substrates, with a maximum lift of 20mm, suitable for standard frame 200 × 150mm test plates.
Measurement accuracy 0.02mm, can control the slow expansion of crazing, test putty layer anti-substrate crazing ability.
The bending diaMeter of putty film cracking peeling is tested by bending test plate, and the shaft Rod size is 50mm and 100mm. It is suitable for 0.2-0 mm thick tinplate substrate, and the operation is simple and reliable.
Equipped with two kinds of shaft Rods with diaMeters of 100mm and 50mm, it can simulate the actual stress conditions, and make the sample uniform bending and deformation through the rolling shaft, which is convenient for observing the phenomenon of film crazing and peeling.
The drying process of paint film and putty film can be accurately measured by using circular track needle design, equipped with four different radius needle (R0.25/0.5/1.0/1 mm), and the track period is 24h/r.
