Puncture strength test method

Puncture strength test method

Instruments: Pierce strength tester, also known as puncture strength tester, punch tester

The power of the corrugated board is made by a certain shape of the pyramid. The energy shown is called the puncture strength of the corrugated board.
The unit of puncture strength is: J .
    Four specimens with a size of 175 x 175 mm were taken from the wall of each sample box of three sample boxes.
The apparatus for puncturing the strength test is a puncture strength tester
The main technical parameters of the puncture strength tester are:
Measuring range: 0-48J
Accuracy: A scale ±0.05J
B ruler ±0.1J
C ruler ± 0.2J
D ruler ± 0.5J
Swing arm swing times : > 100 times
Friction collar resistance : > 0.25J
Pyramid characteristic dimensions : 6mm long on three sides and 25±0.7mm in cone height
Edge radius ( R ): 1.5mm .
    The test method of puncture strength is to place the sample taken in the middle of the positive and negative longitudinal and lower and lateral surfaces in succession with a fixed force ( 250N-1000N ) in the middle of the splint with a through hole, and adjust the required weight to adjust the friction ring. After the pyramid, select and test the appropriate measurement range, adjust the zero position, set the pointer to the highest scale value, and then activate the release mechanism so that the swing arm pushes the pyramid to penetrate the specimen. Read the measured value.
For the test results, find the arithmetic mean and keep the three significant figures.

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