Taber Double-headed wear test instrument operates for leather, cloth, coating, paper, floor tile, tile, glass, natural rubber, etc. to wear-resistant test, the method uses standard cutters to cut the test piece, with a specified model of grinding wheel, and The load must be worn by weight, and the test piece is removed after the specified number of revolutions, observe the status of the test piece or the weight difference between the weight before the test piece test. Wear index calculation formula: Werand loss weight / test Rotation × 1000 gives a chronograph: H-18, H-22, CS-10, CS-17, CS-32, CS-33.
Before the test, the instrument is required to access the power supply, and the exhaust port is connected to the vacuum cleaner.
Accessories and other instruments: standard grinding wheel pair, double-sided adhesive (hard), fine sandpaper (check). According to different standards, it is necessary to prepare 0.1mg precision balance, fabric strong machine, appearance evaluation light box, etc. to evaluate the test results.
Sample: Cutting is about 110mm, and the holes are 8mm in the middle. If you need to compare the changes before and after the sample, you need to weigh the sample original weight (such as the sample is a fabric, etc., it is necessary to stick the standard double-sided adhesive to the outer stickers, weigh the total weight) If you need to compare the strong changes before and after the sample, you need to test its original strength before the test; other properties such as haze need to be tested before testing to determine the original parameters. The sample needs to be pre-adjusted for at least 8 h.
Acceleration: After power-on, start the instrument in the arms raised state, and adjust the speed control knob to the required speed according to the digital display.
experiment procedure
1. Make a clip sample, place the tailoring sample on the test bench. Keep the sample flat, tighten the pressing nut and gasket, and fasten the sample fixation ring with hex wrench.
2, the folder grinding wheel and weight will be mounted on the inside of the balance arm before the balance arm is mounted on the inside of the balance arm. The weight weight or balance weight according to the desired pressure pack. The wear wheel of the corresponding specifications is installed according to the wear wheel specification of different material tests in the corresponding standard.
3, start, turn on the power switch. Set the number of preset rings on the counter. Press the start button, the motor drives the turntable to start rotation. Note: 1. When the grinding wheel grinds the surface of the sticker or the surface of the grinding wheel, replacement is required. Each sample is measured, and the grinding wheel will be cleaned with a brush.
V. Sample results evaluation
After reaching the number of times, the instrument automatically stops or determines that the test end is to stop the test, turn off the vacuum cleaner. Take out the sample for evaluation.
Evaluation method (for reference only, see all standard regulations):
1. Quality loss method, using accurate to 0.1 mg of balances to weigh the test before and after the test (double-sided adhesive) of the test, calculate the percentage of weight loss.
2. The power loss method is used to use a strong instrument to perform a strong test on the test before and after the test, and calculate the percentage of strong losses.
3, the appearance of the number of predetermined turns is achieved, and the appearance is performed after the number of times (usually polished, light transmissive changes, etc.)
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