Roller Width and Rolling Speed ​​of Sticky Fastener Fatigue Testing Machine

The Velcro fatigue testing machine simulates its actual use process through a number of clutches and hooks, measures its shear and peel strength, and considers its durability. R & D and production of test equipment, comprehensive and cost-effective after-sales service.

Main parameters:

1. Roller diameter: upper wheel (driving wheel) ￠162.5mm, lower wheel (driving wheel) ￠160mm;

2. Roller width: 70mm;

3. Rolling speed: 60 rpm;

4. Reverse time: 30s in reverse;

5. Load: 5 kg.

Principle of the test:

Velcro (Velcro tape) is repeatedly peeled off and attached on the machine test After repeating this a number of times, the test piece is rolled up with the weight of the roll itself to make it evenly fit, and with a tensile testing machine, the adhesive force (AS) and the strength ofadhesion (PA) are measured.

Applicable standards:

DIN 3415, GB/T 3903.20, GB/T 3903.21, GB/T23315, ISO 22777, ISO 22776, SATRA PM123

Steps of the operation:

1. Cut 2 sets of samples with a length of (540±10) mm and a width not exceeding the length of the groove cut from a pair of hook-and-loop closures. Each sample set includes one Dough Strips hook and 1 section of Dough Strips.

2. Mark 4 areas with a length of (100±5) mm on each section of the hook surface and the loop surface, and mark \"1\" at one end of each area , and mark the other end \"2\".

3. Take 1 group of samples at random, roll up the marked loop surface tape on the small roll, with the rough surface facing away from the roll, and roll up the hook surface tape on the big roll. With its back to the roller, make the sample parallel and consistent with the roller. make surethat the sample is glued over the full effective width after the rotation of the roller.

4. Adjust the meter, operate the test device, mate the sample 1000 times or 3000 times, then remove the sample.

5. Cut the sample into 4 sections along the marked line, measure the shear strength of 4 groups of samples, take the arithmetic mean value of the 4 groups of measurement results as the secondary Velcro clutch 1000 times or shear strength after 3000 cycles.

6. Take the second group of samples and perform another test.

7. Cut the sample into 4 sections along the marked line, measure the peel strength of 4 groups of samples, take the arithmetic mean of the four groups of measurement results as the secondary Velcro clutch 1000 times or 3000 times After peel strength.

As a collection of a company that integrates R&D, manufacturing, sales, training and service, is committed to providing more test instruments to the market, and provides long-term supplies of textiles, leather, combustion, automotive interior materials, environmental weather aging and clothing protective masks And other test instruments, non-standard customization is also acceptable, and targeted testing can be carried out according to customer requirements before purchase to ensure that the purchased instruments are suitable.

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