1、 Operating procedures
Pre-test preparation
Equipment inspection: Confirm that the power supply is normal, the pressure system is well sealed, check if the top pin of the oil cup is locked, and there is no air leakage in the gas source.
Sample preparation: Cut flat, wrinkle free circular or square samples (such as corrugated cardboard with a diameter of 120-125mm) from cardboard boxes or materials to ensure that the dimensions meet the standards.
Calibration equipment: Use standard samples to calibrate pressure sensors, ensuring measurement accuracy of ± 0.5% or higher. If the instrument displays a deviation of more than ± 1% from the factory calibration value, it needs to be adjusted through the "GAIN" potentiometer.
test process
Place the sample: Place the sample between the upper and lower clamps, align the center and clamp it tightly to avoid sliding.
Set parameters: Set the test speed according to the testing standards (such as ISO2759 or GB/T6545) (usually the hydraulic oil flow rate is 170 ± 15ml/min).
Start test: Press the "reset" button to ensure the display is reset, and then start the testing machine. The clamp is pressurized until the sample ruptures, and the instrument automatically records the maximum pressure value (rupture strength).
Data recording: Save test values, print results if necessary, and take the average value after multiple tests of the same sample.
Post test processing
Turn off the device: After the test is completed, turn off the power switch and clean the sample residue.
Exception handling: If the equipment stalls or data is abnormal during testing, immediately stop the machine for inspection, contact technical personnel for repair, and do not disassemble it without authorization.
2、 Daily maintenance
Cleaning and maintenance
Daily cleaning: Use a dry cloth to wipe the machine body, workbench, and fixtures. Any remaining oil stains should be treated with neutral cleaning agents, and the use of corrosive solvents is strictly prohibited.
Weekly dust removal: Open the electrical control cabinet and blow the internal dust with compressed air (≤ 0.4MPa), focusing on cleaning the power module and fan filter.
Lubrication maintenance
Screw lubrication: Apply NLGI2 grade lithium based grease every 200 hours of cumulative operation, lubricate the guide rail slider monthly, and run for 1-2 strokes without load after application.
Key component inspection: Check the tightness of fixture bolts and the integrity of clamping surfaces every month. If there are any slipping marks, they should be dealt with in a timely manner.
regular maintenance
Quarterly maintenance: calibrate the force sensor (error ≤± 1%), check the tightness of the screw bearing and synchronous belt, and replace the aging sealing ring.
Annual maintenance: Disassemble core components (such as lead screws, guide rails, sensors), evaluate wear conditions, replace precision components that exceed tolerance, reassemble and conduct no-load operation tests.
Operation and Maintenance Record
Establish a "Equipment Daily Operation and Maintenance Record Form" to record maintenance dates, personnel, equipment numbers, maintenance content, and abnormal situations (such as noise and data fluctuations), providing a basis for troubleshooting.