This article is provided by Jinan Saicheng Electronic Technology***.
In life, glassware not only has a practical function, such as holding items, but also adds beauty and artistic touch. Common glassware includes glasses, bowls, bottles, jugs, etc., which have a wide range of applications in kitchens, dining rooms, living rooms, and other places.
Glass bottles are used in some applications to store and transport liquid pharmaceuticals, chemicals, etc., which may exert internal pressure. Testing the internal pressure resistance of glass bottles can ensure that the product can withstand internal pressure under normal use conditions without cracking or leaking, so as to ensure the quality and safety of the product. Therefore, it is very important to check the internal pressure resistance of glass bottles.
GB T 4546-2008 Standard Glass Bottle Internal Pressure Tester Test Principle:
The pressure generated by the hydraulic pump driven by the servo motor of the equipment is transmitted to the pressure sensor and the tested glass vial in an equivalent way through the pipeline, and the equipment controller collects the pressure signal from the pressure sensor in real time and controls the servo motor to drive the hydraulic pump according to the pressure signal value, so that the pressure change in the system increases linearly according to the requirements of the standard and ISO standards until the preset value is reached, in the process of pressurization or pressure holding, if the tested vial is broken, it is unqualified, and after the system automatically depressurizes at the end of the test, the tested vial is still intact, which is qualified。
GB T 4546-2008 glass container internal pressure test method specifies in detail, the operation steps of glass container internal pressure resistance, the following is a detailed introduction for you.
OnePurpose of the trial
A test in which a constant internal pressure is applied for a predetermined period of time.
2. GB T 4546-2008 standard glass bottle internal pressure tester test operation steps:
Prepare the specimen. According to the GB T 4546-2008 standard, the specimen is formulated.
The glass bottle internal pressure tester should meet the following requirements:
a) The mouth of the tested glass container should be clamped and hung for testing.
b) During the test, in order to keep the pressurized medium, there should be an elastic sealing ring between the indenter and the sealing surface.
c) There should be a device to bring the liquid pressure to a predetermined value, with an initial pressurization rate of 10 MPa s02 MPa s (10 bar s2 bar s) and keep the pressure constant during the test.
Bring the sample to the chamber and then ** phase 5C water at room temperature to avoid introducing additional pressure before the test.
Depending on the purpose of the test, one of the following methods is used:
a) Pass test
The internal test pressure is brought to a predetermined value and a constant pressure of 60s 2s or different durations is maintained, but the equipment should have a method of correcting the pressure value to obtain a test result equivalent to a constant pressure of 60 s.
b) Incremental testing
Following the experiment of a) above, in increments of 01 mpa or 0The pressure value of 2 MPa (1 bar or 2 bar) is pressurized until the glass container is 50% or 100% broken.
Summary
By using this equipment, it is possible to effectively detect the parameters of the internal pressure resistance of the glass container, ensure the safety of the glass container, and prevent it from bursting when it is hit by external forces.