Reliability analysis standard and criterion of electronic product package drop test

Date：2022-07-07 15:35:29Views：1109

In fact, the factors that affect the quality evaluation of packaging and transportation are far more than these. The purpose of package drop test is to simulate the situation when products fall to the ground at different edges, corners, surfaces and heights after packaging, so as to understand the damage of products and evaluate the degradation height and impact strength that product packaging components can bear when falling, so as to improve and perfect the packaging design according to the actual situation of products and the scope of national standards.

Drop Test

As a part of impact test, drop test generally refers to simulating the actual situation when different edges, corners and surfaces freely fall to the ground at different heights after the product is packaged, so as to understand the damage of the product and evaluate the degradation height and impact strength that the product packaging components can bear when falling. So as to improve and perfect the packaging design according to the actual situation of the product and the scope of the standard. It is applicable to the accidental fall of packages during loading, unloading and handling. Small transport packages generally adopt free fall mode; The large-scale packaging and transportation parts are generally tested for the drop of rotating edge, rotating angle or rotating surface.

Standard for drop test

Reference standards are as follows:

Gb/t2423.8 environmental testing of electric and electronic products Part 2: Test methods Test ED: free fall

Iec60068-2-32 environmental tests for electric and electronic products Part 2: Test methods test ed: free fall

Gb/t4857.5 packaging -- drop test method for transport packages

Conditions of package drop test

Drop test test conditions: test surface, release height, release method, and the drop test of the product can be carried out by using the test instrument after three parameters are determined

a. The probability of the package falling from a high height is very small.

b. Most packages will fall many times from low height, while relatively few packages will fall many times from high height.

c. Compared with the single package, the combined package has fewer falls and lower height.

d. Most packages are transported in a more stable direction, and surface falls account for more than half of the total falls.

e. The heavier the package, the lower the drop height.

f. The larger the package, the lower the drop height.

g. The strap handle may reduce the drop height.

h. With warning labels, such as fragile, handle with care, etc., may reduce the number of falls, but the effect is not very obvious.

Precautions for package drop test

1. Determination of packaging joints

Package drop test can not be less to find the packaging seams, in fact, each package is very easy to judge.

2. Acceptable degree of package damage

For the outer package, the hole diameter penetrating the package is less than 20mm, the crack less than 50mm or the indentation of corner crease is less than 25mm, which is acceptable, but the package damage beyond this range is not acceptable. The package needs to be designed and improved to ensure the package drop performance, and the package drop test of the new package must be carried out again to verify the effectiveness of the design change.

3. Packing and placing time

For paper packaging materials, it is not acceptable to store them for a long time and then carry out the drop test. It is recommended to carry out the test within 5 working days after the production of packaging materials, because the paper packaging materials will absorb moisture in the air after placing, which will affect the actual performance of the packaging.

4. Can simulated products be used to replace actual products when packaging falls

When a package can hold a large number of products, it may not be able to prepare enough products to fill a package. Can it be replaced by other similar items? The answer is yes. The corresponding principle is that the volume, weight and weight distribution need to be basically the same, and the corresponding substitutes can be customized according to this standard.

5. Test interruption

If the interruption time of test conditions is within the allowable error range, it will not be recorded as an interruption. If the interruption time of the test conditions exceeds the allowable error range, it is necessary to continue to restore the test conditions for the test to ensure that the sum of the time before the test interruption and the continuous test time after the test interruption meets the test requirements. However, in case of test interruption, it is recommended that this test be invalid. This test needs to be completely re executed, and the re executed test result shall prevail.

In conclusion, the protection and safety of packaging products are directly related to the economic profits of businesses. Due to the diversity of packaging and transportation methods, goods have various uncertain factors during transportation, and packaging and transportation testing can help relevant enterprises pre evaluate and ensure the quality of packages in the transportation environment, and improve the reliability of cargo packaging. Shenzhen Chuangxin Online Testing Technology Co., Ltd. is a well-known professional testing institution for electronic components in China, with 3 standardized laboratories covering an area of more than 1000 square meters. The scope of testing services covers: electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, function testing, factory incoming material inspection, component X-ray testing, taping and other test items.