纸箱抗压强度及影响因素：
纸箱耐压强度是许多商品包装要求的重要的质量指标，测试时将瓦楞纸箱放在两压板之间，加压至纸箱压溃时的压力，即为纸箱耐压强度，用KN表示。
预定纸箱耐压强度
纸箱要求有一定的耐压强度，是因为包装商品后在贮运过程中堆码在低层的纸箱受到上部纸箱的压力，为了不至于压塌，必须具有合适的抗压强度，纸箱的耐压强度用下列公式计算：
P=KW（n-1）
式中P----纸箱耐压强度，N
W----纸箱装货后重量，N
n----堆码层数
K----堆码安全系数
堆码层数n根据堆码高度H与单个纸箱高度h求出，n=H/h
堆码安全系数根据货物堆码的层数来确定，国标规定：
贮存期小于30d取K=1.6
贮存期30d-100d取K=1.65
贮存期大于100d取K=2.0
Carton compressive strength and influencing factors:
The compressive strength of cartons is an important quality index required by many commodity packaging requirements. During the test, the corrugated cartons are placed between two pressing plates and pressurized to the pressure when the cartons collapse, that is, the compressive strength of cartons, expressed in kn.
Predetermined carton compressive strength
The cartons are required to have a certain compressive strength because the cartons stacked on the lower floor during the storage and transportation of packaged goods are under the pressure of the upper cartons. In order not to collapse, they must have appropriate compressive strength. The compressive strength of cartons is calculated by the following formula:
P=KW（n-1）
Where p---- compressive strength of carton, n
W---- weight of carton after loading, n
N---- number of stacking layers
K---- stacking safety factor
The number of stacking layers n is calculated according to the stacking height h and the height h of a single carton, n=h/h
The stacking safety factor is determined according to the number of layers of goods stacked. The national standard stipulates:
If the storage period is less than 30d, k=1.6
Storage period: 30d-100d, k=1.65
If the storage period is greater than 100D, take k=2.0
