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The automatic fabric air permeability tester is an experimental equipment independently developed and produced by our company QINSUN It is suitable for a variety of textiles, including industrial fabrics, non-woven fabrics and other breathable products such as sponges and paper. Contour detection of breathable materials.
Test Principle:
Place the pre-treated sample between the upper and lower test chamber, clamp it, first vacuum the low-pressure chamber (lower chamber), and then vacuum the whole system. When the specified vacuum degree is reached, the lower test chamber is closed, and a certain pressure of the test gas is filled into the high-pressure chamber (upper chamber), and a constant pressure difference (adjustable) is formed on both sides of the sample. In this way, the gas will permeate from the high-pressure side to the low-pressure side under the influence of the pressure gradientgene. By monitoring and processing the pressure in the low pressure side, different barrier parameters of the tested sample can be obtained.
Experimental debugging:
1. Before the instrument works,
2. Check that the sample's fixed value ring is screwed on tightly and that the airtight ring is close to the two bonding surfaces.
3. Check whether the indenter can move the indenter up and down flexibly.
4. Check that the connection between the suction hose, the flow cylinder and the suction fan is tight.
5. Check whether the door cover and door lock on the flow cylinder can be closed properly.
6. Check that the printer is properly connected.
7. Correction.
8. Check whether the instrument is leaking: use a non-porous plate instead of the calibration plate to test, and the air permeability screen will show a value of 0 (less than 10 Pa is allowed), which means that there is there is no air leakage, otherwise some part of the instrument is leaking, should be checked and adjusted.
Advantages and features:
1. The company has been engaged in instrument testing for more than ten years and has a after-sales service team;
> 2. Can be different
3. Spare parts are available to solve the problem of long delivery time for spare parts ordering;
4. Provide outsourced maintenance services;
5. Long-term supply of various commonly used test instruments;
6. Keep up with the update of industry standards and care for test instruments that meet the new standards in time.
