Abrasion resistance is very important to the performance of felt, and felt manufacturers said that the abrasion resistance of felt needs to be tested through certain operations.
The felt abrasion test is mainly carried out on the fabric friction strength machine. First, the needle of the fabric friction strength machine should be set to the zero position, and the felt sample should be clamped smoothly and in a tense state. Turn on the power machine motor to lower the lower jaw at a speed of 200 mm/min. When the felt is pulled off, record the pointer reading P, and then the result can be calculated. It should be noted that the breaking strength of each sample is arithmetic averaged, and the average value is the breaking strength of the felt.
Clamp No. 400 sandpaper on the upper splint, gently place it on the sample, turn on the motor for friction, and stop the machine when the felt is worn through. Write down the number on the front meter to indicate the strong friction