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What are the tests of the zipper strength?

2016-10-24

What are the tests of the Zipper strength?

There are many ways to measure the strength of a zipper, but the general situation is tested in several ways:

1, flat pull strength test

Flat pull strength is the most basic strength index, with the test zipper teeth in the interlocked state, the ability to resist lateral forces, which is very similar to the actual use of the state.


2, Top tape extension strength test

Pull the chain of interlocking teeth and pull the first pull to the top of the mouth, pulling the first pull, this time to measure the strength of the zipper top, which is a simulation of the zipper in the grip state, the first pull across the top pull only Or the ability to resist external forces when the upper stop is moved from the band.


3, Bottom tape extension strength test

The puller is pulled to the lower end stop and the puller is divided into left and right halves, pulling the right and left sprockets to measure the force required to break down, and measuring the resistance of the inner member of the slider.


4, open-end flat pull strength test

Test open end of the insertion tube and socket resistance to external damage, the fixture up and down, respectively, fixed to the left and right side of the opening, pull even in the closed case, start the machine.



5, Slider block of the strength test

Pull the first in the middle of the tooth is auto-locking, pull the connected teeth are divided into about two parts, stretching around the two parts of the zipper, you can test the strength of locking and pull the internal resistance of the first component.

3# YG zipper & Slider

6, pull Tu La combined strength test

To pull the direction perpendicular to the pull applied to pull the first force, that pull the pull and separation of the body so far, the value recorded at this time is the pull the first combination of pull strength.

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