Introduction to the test process and method of the full tank compression tester
Haida Instrument 400-071-1808/0769-89280808
Due to the limitations and requirements of test conditions and work efficiency, most manufacturers usually test carton pressure resistance under normal temperature and humidity conditions and directly assess whether the product meets the requirements. In fact, the use of this method to assess the existence of a large risk of misjudgment often misleads the cartons supplier in assessing or causing the carton pack to collapse.
In the case of relatively large humidity conditions in the South, if the anti-pressure strength of the non-standard state test can meet the safety and anti-pressure standards, it means that the carton fully meets the requirements, and the design of the carton is in compliance with the requirements ; if the tested carton strength is not There are two possibilities for achieving safety and pressure resistance standards:
Carton design, production does not meet the requirements.
Carton design and production meet the requirements ;
It should be noted that in the case of low humidity conditions in the north, non-standard state test results are often higher than the safety and compression requirements, but it does not mean that they meet the standards, because in the long-distance logistics conditions, especially the sea conditions are relatively high humidity Non-standard state test results should consider this factor to be reflected in the design, otherwise the resulting risks will be difficult to avoid.
Therefore, it is very important to correctly evaluate the results of product testing.
Proper trial of carton compression tester for product testing process and basic methods
First, determine the carton safety anti-stress, weight quality standards.
Both of the above indicators can be obtained through formulas. The determination of indicators depends on the difference between domestic and foreign sales and storage periods. Under special circumstances, if the carton is supported by contents, the appropriate pressure resistance index value can be determined according to the actual situation. The weight quality index must be determined by the formula.
Second, detect the pretreatment state:
The carton is preconditioned for 24 hours under standard test conditions ( normal carton users can be tested by an authoritative fair testing agency unconditionally ) and then tested again to make the moisture in the carton reach dynamic equilibrium.
Third, sample extraction notes:
In the trial production phase of new products, the difference between non-printing and die-cut strength after sampling sample printing and die-cutting process is about 5-20% , so the state of the sample and batch product should be kept basically the same.
The sampling of batch products should meet the principle of statistical probability. After many years of practical experience, the sample sample should be taken from 6 different 3 packages, which can reduce the risk of misjudgment.
The result is judged:
If the carton pressure resistance detected under standard conditions is lower than the pressure resistance index, it can be determined that the batch tank is unqualified.
The above method has strong operability, which is of great benefit for improving the work efficiency and evaluating the stacking test results more effectively. You may wish to try.