Teach you how to use the burst strength testing machine correctly
The bursting strength testing machine is an internationally-used instrument widely used in packaging materials. It is mainly used for the determination of various paperboard and single-layer and multi-layer corrugated paperboard. It can also be used for the test of the burst strength of non-paper materials such as silk and cotton. Also known as a burst tester , a burst strength tester, and the like. As long as the material is placed, it is automatically detected, automatic test, automatic oil pressure return and automatic calculation, storage test data, printing, digital display of the instrument and automatic printing of test results and data processing. Teach you how to use the burst strength tester correctly.
Carton? Burst strength testing machine
Medicinal aluminum foil bursting strength testing machine
Breaking strength testing machine notes:
1. It should work within the pressure range specified by the hydraulic sensor to avoid damage and affect the accuracy of the sensor.
2. In the use of the rupture strength testing machine, due to the reciprocating motion of the piston and the sealing of each joint, there may be a trace amount of air entering the inner cavity of the instrument. The presence of these residual air will directly affect the test accuracy (generally due to gas Compressibility, the value measured by the presence of air is lower than the actual value).
Bursting strength testing machine operation method
1. Sample processing:
The preparation of the sample and the treatment before the test shall be carried out in accordance with GB/T 450-89 and GB/T 10739-89.
2. Operation method:
(1) Turn on the power, press the green button switch on the instrument panel, pay attention to whether the direction of rotation of the motor is the same as the direction of the red arrow on the transparent panel of the dust cover. When the “beep†sound appears, the motor has been turned incorrectly and needs to be shut down. Change the direction of the motor.
(2) Place the sample taken according to the standard between the upper clamp ring and the lower clamp ring.
(3) Rotate the handwheel clockwise to clamp the sample between the two clamp rings. When the handwheel is tightened to the pressure value indicated by the pressure gauge, the pressure should be stopped: 1.25 MPa, at this time The clamping ring is clamped to 720 MPa.
(4) Push the handle to the left, the clutch is combined with the gear, and the screw shaft drives the piston forward to pressurize the liquid silicone oil until the sample is broken, and the digital position shows the fracture resistance of the sample. The sample rupture is pushed to the middle position by the stopper, and the piston stops moving. After completing the above actions, the instrument can perform a second job.
(5) Turn the handwheel counterclockwise, loosen the upper clamp ring and raise it to a certain height to take out the sample.
(6) Repeat steps 2 to 6 for ten tests of the same sample, half for each positive and negative.
3. Results processing:
(1) Press the Quantize button to enter the quantitative value, press the Quantize button again to confirm, and then press the Print button to print the result. The print format is shown below.
(2) Breaking index: X=P/W where X: Breaking index (Kpa.m2/g) takes three significant figures. P: average burst strength (Kpa) W: sample quantification: (m2/g)
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