First, the rationale.
The cardboard edge pressure ring pressure tester simulates the external load on the cardboard in actual use by applying pressure. During the test, the cardboard is placed between the upper and lower pressure plates and subjected to gradually increasing pressure. When the pressure reaches a certain level, the cardboard will crack or deform, and the pressure at this time is the compressive strength of the cardboard. Through this test, it is possible to understand the compressive properties of the cardboard and thus evaluate its reliability in practical use.
Second, the structure. The cardboard edge pressure ring pressure testing machine is mainly composed of the following parts:
1.Main machine: The main machine is the core part of the cardboard edge pressure ring pressure testing machine, which includes two pressure plates with adjustable spacing between the upper and lower sides, and a device that can apply pressure.
2.Control system: The control system is used to control the operation of the testing machine, including the operation of pressure application, holding and unloading.
3.Measuring system: The measuring system is used to measure the compressive strength of cardboard, including pressure sensors and displacement sensors, etc.
4.Safety protection device: The safety protection device is used to protect the testing machine from damage or accidents.
3. How to use.
When using a cardboard edge pressure ring pressure tester, the following steps need to be followed:
1.Prepare the specimen: make the specimen according to the standard requirements, and ensure that the size, thickness and surface condition of the specimen meet the test requirements.
2.Mounting the specimen: Place the specimen between the upper and lower pressure plates and make sure that the specimen is flat and free of twisting.
3.Set test parameters: Set parameters such as the application rate of pressure, the maximum pressure and the duration of the test according to the test requirements.
4.Start the test: Start the testing machine, apply pressure to the preset value, and hold it for a certain amount of time. During this time, the changes in the specimen are observed and recorded.
5.End of the test: After the preset test parameters are completed, the operation of the testing machine is stopped and the pressure is unloaded.
6.Data processing: The test data is processed and analyzed as needed to evaluate the compressive performance of the cardboard.
4. Precautions.
When using the cardboard edge pressure ring pressure testing machine, you need to pay attention to the following points:
1.Specimens are made and prepared in strict accordance with the standard requirements to ensure the accuracy and reliability of the test results.
2.In the process of testing, it is necessary to pay attention to the changes of the sample, and if any abnormal phenomena are found, the test should be stopped in time, and inspection and elimination should be carried out.
3.Regular maintenance and maintenance of the testing machine to ensure its normal operation and service life.
4.During use, it is necessary to follow the operating procedures to ensure personal safety and equipment safety.
In conclusion, the cardboard edge pressure ring pressure testing machine is an important testing equipment, which can accurately evaluate the compressive performance of cardboard. By properly using and maintaining the cardboard edge pressure ring pressure testing machine, reliable test results can be obtained, which provides strong support for the quality control of the product.