Low temperature flexibility tester

NegotiableUpdate on 01/19

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Nature of the Manufacturer: Producers

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Overview

The low-temperature flexible tester complies with the national standard GB/T328.14-2007; This standard clearly stipulates that low-temperature flexibility testing must use mechanical automatic testing to avoid the influence of human factors. The low-temperature flexibility tester is a device used by testing institutions, waterproofing membrane production enterprises, and to test product quality.

Product Details

　　Low temperature flexible testerCompliant with the national standard GB/T328.14-2007<<Test Methods for Building Waterproofing Membrane Part 14: Low Temperature Flexibility of Asphalt Waterproofing Membrane>>, this standard clearly stipulates that low-temperature flexibility testing must be carried out using mechanical automatic testing to avoid human factors. The low-temperature flexibility tester is a device used by testing institutions, waterproofing membrane production enterprises, and to test product quality.

1Low temperature flexibility testermeet the standard

GB/T328.14-2007 Test Methods for Building Waterproofing Membrane

IILow temperature flexibility testerTechnical Specifications

Power supply 220V

Input power 90W

Test speed 360 ± 40m/min

Test temperature -40~100 (adjustable arbitrarily)

Number of test pieces: 5 pieces

Test piece size 150 × 25mm

Time setting 0-999 minutes (adjustable)

Bending axis size: 20, 30, 50

3、 Usage method

1. First, place the cooling test tank into a low-temperature chamber and add a cryogenic solution (propylene glycol/water solution, volume ratio 1:1; ethanol/water mixture below -25 ℃ or below -20 ℃, volume ratio 2:1) to freeze to the desired temperature. Then adjust the distance between the two circular axes of the flexibility meter according to the specimen, that is, the bending axis diameter+2mm+twice the thickness of the specimen. Place the specimen on the bending axis and bracket and place it in the cooled low-temperature water tank, with the upper end of the specimen 10mm below the freezing liquid level.

2. Connect the control device to the power supply and set the specified temperature and time according to the standard. At this time, the temperature display is the temperature in the frozen liquid. When the temperature reaches the set temperature, the time starts to count. When the set time is reached, the bending shaft starts to rise against the specimen at a speed of 360mm/min. When the bending shaft stops, the test is completed and the specimen is checked for cracks. Press the back button to bend and descend to the starting point.

3. Press the test machine work button once, and when the test machine light is on, press the start button or return button to bend the shaft to start rising or falling. When the test machine light goes out, only the temperature will be affected. When the time reaches the set value, the bending shaft will automatically rise against the test piece and stop at the upper limit. Press the return button to bend the shaft to the starting point. Note that it will not start automatically when the time is up.