Analysis of test steps of Martindale abrasion tester
The Martindale abrasion test is a abrasion resistance test of textile products based on the Martindale method standard system and its relationship, and through this test to test the abrasion resistance of fabrics. Abrasion resistance is an important indicator of the quality of textile products. It directly affects the durability and use effect of the product. Wear resistance refers to the resistance to wear between fabrics or other substances in the process of repeated friction. The machine used for fabric abrasion resistance test is Martindale Abrasion Tester, (Hong Kong) Co., Ltd. is the manufacturer, welcome to inquire. Test principle: 1. Under a certain pressure, the circular fabric sample and the standard abrasive rub against each other according to the movement trajectory of the Lissajous curve, resulting in damage to the sample. Wear resistance. 2. The circular sample and the fabric of the same material are rubbed with a Lissajous graphic motion trajectory under a given pressure, and after reaching the specified number of revolutions, the pilling level of the sample is evaluated. Main parameters: 1. Counting range: 0～999999 times; 2. Number of stations: 9 stations; 3. Mass of pressurized material: a. Gripper: 200±1g; b. Clothing sample weight: 395±2g; c. Weight of furniture decoration sample: 594±2g; d. Stainless steel disc: 260±1g; 4. Range of motion: horizontal: 60.5±0.5mm, vertical: 24±0.5mm; 5. Effective friction diameter of grinding block: Type A 200g (1.96N) friction head (9kPa) ￠28.8－0.084mm; Type B 155g (1.52N) friction head (12kPa) ￠90－0.10mm; 6. Pack Sample hammer quality: 2385±10g; 7. The relative movement speed of the gripper and the grinding table: 20-70r/min (adjustable). Test steps: 1. The sample is parked in the laboratory environment for more than 8 hours; 2. A piece of sample is cut from the flat part of the sample, if it is an insole, it should be cut to the transfer part; 3. Remove the load from the testing machine 4. Remove the top plate and the test fixture; 5. Sample device: Loosen the fixing ring on the test fixture, take off the sample press, put the sample into the test fixture base, and place the sample in the test fixture base. Place a piece of sample gasket between the base of the test fixture, and then place the sample pressing piece on the sample gasket and fix it with a fixing ring; 6. Wool felt and friction cloth device: Loosen the fixing screw to fix the fixing ring, put the sheep Put the felt on the base and then spread the friction cloth, press the 2.5KG pressure plate in the middle of the friction cloth, replace the fixing ring and fasten the fixing screws; Pass through the round hole of the top plate; 8. Place the test fixture with the sample face down, place it on the base fixture, and adjust the circular groove of the test fixture to align with the load shaft, so that the load shaft is inserted into the circle of the test fixture. 9. According to the standard set times, start the switch, start the test, and automatically stop after reaching the set times.
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