Martindale Abrasion Testing Machine Operating Method and Precautions

Prepare the sample
1. Operation Method
1. Preparation of the sample
Put it in a standard environment for a period of time according to different standards in a flat, non-stretching state. For example 24 hours (GB/T 4 80 2 .2-19 97), 16 hours (EN ISO 12947-4:1998)
2. Selection of samples
Cut from different parts of the whole door fabric Take a sample, the sample must be representative. If it is a beautiful fabric, the sample should include all the different textures and colors presented by the fabric surface;
3. Remove the load and load shaft from the testing machine;
4. Remove the top plate and test fixture;
5. Example device:
Loosen the retaining ring on the test fixture, remove the hold-down piece from the sample and place the sample in the test fixture base. When the tested fabric is not more than 500 g/m2, a piece of polyester foam is placed between the sampleand placed the metal block of the sample clamp; when it is more than 500 g/m2, or a composite fabric, no foam is required. The samples on each sample holder must be subjected to the same voltage.
6. Installation of wool felt and abrasive cloth:
Put the felt and abrasive on the grinding table, put the weight on the abrasive, then put the pressure ring on it and tighten the nut so that the pressure ring abrasives are fixed on the grinding table.
7. Place the grinding head on the abrasive and apply pressure;
8. Place the test fixture with the sample facing down on the base fixture and adjust the circular groove of the test fixture to align with the load axis so that the load axle is inserted into the circular groove of the test fixture;
9. Set the number of times according to the standard, start the switch, start the test, and automatically stop after reaching the set number of times:
10. Take the sampleon it and compare it with the standard sample in the evaluation box.

2. Matters requiring attention in the operation of the Martindale Abrasion Tester:
1. The friction cloth cannot be used repeatedly. A rubbing cloth must be replaced each time a test is completed;
2. Wool felt can be used repeatedly. If the surface is worn or stained, it can be replaced and can be used on both sides;
3. The insole should be dressed first and then cleaned. Martindale abrasion test;
4. After the test is completed, if the surface table of the sample has abnormal phenomena such as wear, broken yarn, pilling or severe pilling, severe wear, etc., it will be judged as non-qualified. 5. When preparing samples, special attention should be paid to avoid hair changes at the cutting edges, to avoid unnecessary loss of quality and appearance change.to prevent intrusions.
6. Pay attention to operating specifications and personnel safety while using the instrument.

3. Maintenance of the Martindale Abrasion Tester
1. The instrument should be cleaned and cleaned regularly to ensure the cleanliness of the test instrument
2. Check the test instrument regularly to see if there is any deviation;
3. During the use process, each user should use it according to the correct use method, and should not use it in violation of the regulations, so as not to damage the instrument and shorten the life of the instrument;
4. After using the test instrument, each user should arrange the instrument and clean the instrument accordingly to ensure that the instrument is clean;
5. When the instrument is not in use, the instrument power should be turned off and the instrument should be kept clean.

Prev: EN ISO 12947-4:1998 Martindale Abrasion Tester Test method