紙箱抗壓強(qiáng)度試驗(yàn)標(biāo)準(zhǔn)和方法
紙箱抗壓強(qiáng)度試驗(yàn)主要用于各種包裝體和紙箱的抗壓強(qiáng)度，以防止產(chǎn)品在使用、搬運(yùn)、堆放、儲(chǔ)存和運(yùn)輸過(guò)程中因各種包裝體強(qiáng)度不足而變形和損壞。也可用于堆疊測(cè)試。試驗(yàn)結(jié)果可作為工廠堆放成品包裝箱高度的重要參考，紙箱抗壓強(qiáng)度要求如下：
1、 紙箱外觀質(zhì)量：
1、密封質(zhì)量：箱體四周無(wú)滲漏，箱蓋合上后無(wú)錯(cuò)縫、分縫；
2、尺寸公差：箱體內(nèi)徑與設(shè)計(jì)尺寸的公差，大箱體在±5mm以內(nèi)，小箱體在±3mm以內(nèi)，外形尺寸基本相同；
3、印刷質(zhì)量：圖案、字跡印刷清晰，色度一致，明亮明亮；大盒印刷位置誤差不超過(guò)7mm，小盒印刷位置誤差不超過(guò)4mm；
4、蓋的折疊次數(shù)：瓦楞紙箱擺動(dòng)蓋通過(guò)180度的開(kāi)閉前后折疊5次以上，一、二類箱的表層、內(nèi)層和內(nèi)層裂紋總長(zhǎng)度不大于70mm；
此外，接縫應(yīng)規(guī)范，邊緣應(yīng)整齊，無(wú)重疊角，箱體表面應(yīng)無(wú)明顯損壞或污漬
Test standard and method for compressive strength of cartons
The carton compressive strength test is mainly used for the compressive strength of various packaging bodies and cartons to prevent the products from deformation and damage during use, handling, stacking, storage and transportation due to insufficient strength of various packaging bodies. It can also be used for stacking test. The test results can be used as an important reference for the height of finished product packaging boxes stacked in the factory, and the compressive strength of cartons has the following requirements:
1、 Carton appearance quality:
1. Sealing quality: there is no leak around the box, and there is no stagger and seam separation after the box covers are closed;
2. Dimensional tolerance: the tolerance between the inner diameter of the box and the design dimension shall be kept within ± 5mm for the large box and ± 3mm for the small box, and the overall dimension is basically the same;
3. Printing quality: the pattern and handwriting are printed clearly, with consistent chromaticity, bright and bright; The printing position error shall not exceed 7mm for large boxes and 4mm for small boxes;
4. Fold times of cover: the corrugated box swing cover is folded back and forth for more than 5 times through 180 degrees of opening and closing, and the total length of cracks in the surface layer, inner layer and inner layer of class I and class II boxes shall not be greater than 70mm;
In addition, the joint shall be standard, the edges shall be neat without overlapping corners, and the box surface shall be free of obvious damage or stains
