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Calibration method of plastic film tensile testing machine

Article source: Jinan HuiFu testing machine factory popularity: Time of publication: September 18, 2019 08:18

Calibration method of plastic film tensile testing machine
Plastic film tensile testing machine It is a precision instrument that can measure multiple properties of materials. It is suitable for testing the properties of plastic film, composite material, flexible packaging material, plastic hose, adhesive, adhesive tape, self-adhesive, paper fiber and other products, such as tensile, peeling, deformation, tearing, heat sealing, adhesion, puncture force, opening force, low-speed unwinding force, pull-out force and other performance tests.
Plastic film tensile testing machine through the measurement of material properties, to ensure that the performance of the enterprise's production materials in line with the industry standards, to ensure product quality. But many enterprises in the measurement process, the results will appear deviation, at this time, it is necessary to calibrate the tensile testing machine.  
Calibration method of plastic film tensile testing machine
1、 Speed calibration
1. First, write down the starting position of the machine beam
2. Then select the speed value on the control panel
3. When the machine is started, the electronic stopwatch starts to count for 1 minute. When the stopwatch arrives, press the stop button
4. According to the time of the stopwatch, record the travel value of the cross arm as the speed per minute (mm / min), observe the difference between the travel value of the cross arm and the straight steel ruler, and calculate the travel error of the cross arm, which shall not exceed ± 1%.  
2、 Calibration of various force values
Open the operation interface of the tensile testing machine, click the calibration program, we first take a standard weight weight and hang it on the upper fixture connecting base, click to start the test, then record the computer display force value, and calculate the difference with the standard weight weight weight, the error should not exceed ± 1%. If there is a large error, it should be a sensor problem, try to reset the force value of the software Tests.  
3、 Displacement calibration
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