XK-3010 low temperature shock resistance testing machine, also known as low temperature cold resistance test machine, is suitable for various leather, synthetic leather, textile, fabric, rubber, finished shoes, shoe upper leather, sole and other materials to simulate the shock resistance test at low temperature, to Learn about material damage in low temperature climates and cold regions.
Experiment procedure:
1. Adjust the temperature of the low temperature box to the test temperature for at least 1 hour before the test.
2. Cut the test sample with a mold. The length direction of the test sample should be parallel to the transverse direction of the product. Connect the two ends of each sample with a length of 50mm and gradually form a closed circle at room temperature. Connect each sample The side of the cardboard with a size of 127mm×50mm should be completely attached to the side of the cardboard, and the closed circle should be located on the cardboard, and two nails should be nailed with a stapler at a place about 12.7mm from the edge on the matching side of the sample and the cardboard .
3. Put the entire low-temperature impact instrument into the low-temperature box, and put 5 test pieces into the cold-conditioning box for about 15 minutes.
4. Put the 5 covered samples on the bottom plate respectively, put the curled part of the staple behind the jammed paper into the groove of the bottom plate, and operate on the jammed paper, place the curved closed circle of the sample on the center of the bottom plate, The closed loop faces away from the pivot end of the impact handle.
5. Let the impact handle freely fall on the curved closed circle at an angle of 5°. Repeat this operation until all 5 samples have been tested.
6. Move the sample to detect the degree of damage. Under the specified temperature, the number of damaged samples should not exceed 20% of the number of test samples
(11-24)
ps: (WLJCDM809)
评论
发表评论