紙箱抗壓強(qiáng)度及影響因素：
紙箱耐壓強(qiáng)度是許多商品包裝要求的重要的質(zhì)量指標(biāo)，測(cè)試時(shí)將瓦楞紙箱放在兩壓板之間，加壓至紙箱壓潰時(shí)的壓力，即為紙箱耐壓強(qiáng)度，用KN表示。
預(yù)定紙箱耐壓強(qiáng)度
紙箱要求有一定的耐壓強(qiáng)度，是因?yàn)榘b商品后在貯運(yùn)過程中堆碼在低層的紙箱受到上部紙箱的壓力，為了不至于壓塌，必須具有合適的抗壓強(qiáng)度，紙箱的耐壓強(qiáng)度用下列公式計(jì)算：
P=KW（n-1）
式中P----紙箱耐壓強(qiáng)度，N
W----紙箱裝貨后重量，N
n----堆碼層數(shù)
K----堆碼安全系數(shù)
堆碼層數(shù)n根據(jù)堆碼高度H與單個(gè)紙箱高度h求出，n=H/h
堆碼安全系數(shù)根據(jù)貨物堆碼的層數(shù)來(lái)確定，國(guó)標(biāo)規(guī)定：
貯存期小于30d取K=1.6
貯存期30d-100d取K=1.65
貯存期大于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
