The mysterious structure of ICI pilling snagging tester

The mysterious structure of ICI pilling snagging tester

ICI pilling snagging tester's 2 main structures：

 

1. the movement of the grinding head:

 

ICI pilling snagging tester in the speed of the abrasive head trajectory, directly affects the effect of friction between the specimen and the abrasive. This instrument adopts JX 07 capacitor motor, the speed is reduced by a worm gear installed in the gearbox, the speed ratio is 1: Han, so that the grinding head obtains a speed of 60 revolutions per minute. The size of the trajectory. The trajectory of this apparatus selected 40 mm diameter circle (countless composite circle) when toggling the forward and reverse switch, can be obtained clockwise or counterclockwise trajectory.

Test that: this circular motion trajectory, with symmetry, so the specimen does not have the provisions of the latitude and longitude, the direction of the specimen clamp sample, there are no special requirements and to ensure the uniformity of friction movement at all points of Lee, etc., in addition, we are in the structural design, the use of brushes in the bottom, the specimen on the top, so that the abrasive chips and debris will not stay on the friction specimen, and affect the test results.

 

2. Specimen pressure:

 

The size of the specimen under pressure, is the second factor related to the form of hair pilling, the apparatus adopts direct pressure method, the mechanism is simple and effective pressure, the grinding head is equipped with five hand grips (i.e., pressure hammer) according to the different varieties of raw materials, according to the provisions of the choice of the pressure range of 500 ~ 800 grams of test hair, so that the specimen and the position of the brush corresponding to the different pressure, so that the specimen obtained 13 ~ 21 g / cm2 pressure. square centimeter of pressure. When continuing the pilling test, simply loosen the positioning screw on the side of the abrasive holder, push the holder, move the brush away from the specimen, so that the specimen and the pilling abrasive maintain the corresponding position, and then fix the positioning screw. Therefore, we hope to have a large pressure and the formation of "balling", most of which occurs under light friction, so the pressure of pressure should be light to master.