The safety glass bag impact testing machine is used to test the performance of safety glass under simulated collisions or impacts, and is usually used for quality inspection of safety glass products such as automotive glass or architectural glass. The bag impact testing machine simulates the impact force of shotgun shells on glass surfaces to evaluate their impact resistance. In order to ensure the accuracy and reliability of the testing machine, it is necessary to regularly calibrate the equipment.
Verification regulations for safety glass bag impact testing machine
The following are general verification procedures, including equipment inspection, functional testing, calibration, recording and reporting, and other aspects:
1、 Equipment inspection
Appearance inspection:
Check whether the appearance of the testing machine is intact, ensuring no damage, oil leakage, abnormal noise, etc.
Check the fastening of all components, including screws, brackets, fasteners, etc., to ensure that there is no looseness.
Electrical system inspection:
Check the electrical control system, including power supply, buttons, switches, and display screens, to ensure proper functioning.
Check the electrical connections of the testing machine to ensure that the power sockets, wires, and electrical connectors are secure and safe.
Transmission system inspection:
Check the working status of the drive device, pneumatic system, and bag launcher to ensure smooth operation and no abnormal jamming.
Inspection of the bag device:
Check the spray angle and speed control system of the bag launcher to ensure that the shot is evenly and without deviation.
Confirm whether the filling material of the bag meets the standards, is clean, and there is no leakage.
2、 Function check
Experimental parameter setting and calibration:
Impact energy calibration: By adjusting the launch speed and quality of the bag, testing is carried out using standard samples to ensure that the machine can output impact energy that meets the standard requirements (such as being set within a certain range of J).
Speed control calibration: Use high-precision speed measuring instruments to test the speed of the launched bag and confirm that its control system can accurately achieve the set speed.
Impact force simulation test:
Use standard glass samples for testing to check if the glass can break or deform under the set impact force, ensuring that the simulated impact effect meets the standards of safety glass.
Verification of launch angle for graupel bags:
Measure the emission angle of the bag launcher and ensure that the angle is controlled within the specified range to ensure the authenticity of the experiment.
3、 Calibration
Impact energy:
Use standard measuring equipment to calibrate the impact energy provided by the bag launcher. It is usually necessary to use standard glass or metal plates and use sensors to measure the energy loss after impact.
Speed control and measurement:
Use high-precision laser velocimeter or other speed measuring tools to detect the emission speed of the bag, ensuring that it meets the requirements (such as within ± 5% error range).
Weight calibration of the bag:
Check and calibrate the quality of the bag. According to the standard, confirm that the quality of each bag is within the allowable range.
Glass fracture performance test:
Standards and methods for verifying glass breakage. Confirm whether the glass sample can meet the criteria for fracture or incomplete fracture under specific impact forces.
4、 Experimental operation and recording
Experimental process:
According to the standard testing procedure, record each operational step, including equipment startup, test setup, impact testing, data collection, etc.
Data recording:
Record in detail the main data of each test, including impact energy, bag velocity, glass fracture condition, fracture area, etc. The data should be clearly identified as normal, qualified, or unqualified.
Test result record:
After each experiment, the results are automatically recorded and a report is generated, which should include detailed parameters and equipment status to ensure that all data can be traced.
5、 Equipment verification cycle
Regular verification:
Regularly calibrate according to the frequency of device usage. Usually, a comprehensive inspection is required every six months to one year.
After equipment failure or maintenance, recalibration and calibration are required.
Verification report:
After each verification, a verification report should be generated, which should include detailed information on the verification process, test results, equipment status, and whether it is qualified. The report should be signed and confirmed by the verification personnel and the equipment manager.
6、 Precautions
Operating environment:
When conducting calibration, ensure that the operating environment of the testing machine is stable and free from external interference (such as drastic changes in temperature and humidity).
Maintenance and upkeep:
Regularly maintain the equipment, clean the bag launcher, check the air pressure system to prevent dust accumulation or damage to the system.
Regularly replace the bag to ensure its normal use.
Safe operation:
Operators should wear necessary personal protective equipment, especially when conducting glass breakage experiments, to ensure that safety measures are in place.
VII. Conclusion
The verification regulations for the safety glass bag impact testing machine mainly include equipment inspection, functional calibration, operation records, etc., to ensure that the equipment provides accurate and reliable results during glass impact testing. Through standardized verification procedures, the fairness of test results can be ensured, thereby objectively evaluating the quality of safety glass.