Assess whether the carton is up to standard--Pressure resistance and stacking test (4)

Improve the efficiency of stacking test

Stacking tests tend to take a long time, and the economic and effective assessment methods are still in the stage of exploration. The following is the experience of the company's company and customers to discuss and practice together:

â– Basic principles

The safety and anti-pressure values ​​of the same box are equal to the stacking quality value. The minimum value of the anti-pressure of the sample is not less than the safety anti-pressure value. By checking the average values ​​of the pressure peaks of the 6 carton boxes, it can be determined whether the stacking test is qualified. . We can intuitively understand their related relationships through the figure below

â–  Process and method

We first understand the carton anti-pressure peak deviation through empirical test data. Under the atmospheric conditions of the standard, the maximum double-corrugated cardboard box's anti-pressure peak Max and minimum Min deviation under the conditions of handling, transportation, storage, etc. 28%, a single corrugated box deviation of about 33% (should be excluded from the individual seriously damaged boxes).

1. Determine the average value of the standard safety pressure.

Double corrugated carton standard; the average value of the safety anti-pressure value should normally be 1.15 higher than the safety and anti-pressure value of the safety anti-pressure value of 15%), single corrugated cardboard box standard; éš¹ the average value of the safety anti-stress safety 1 18 .

2 In the standard state, the peak load pressure of the 6 sample carton was detected.

3. Calculate the arithmetic mean of the pressure peak of the sample carton.

The arithmetic mean value of the peak value of the 4 sample carton anti-pressure is greater than the standard; if the average cow safety anti-pressure value, the carton is qualified, otherwise it is unqualified.

The above method has strong operability, and it is of great benefit for improving the work efficiency and evaluating the stacking test results more effectively. You may wish to try it.

(author/ Luo Aibin)

Source: Corrugated Box 2005, 9