1.纸箱堆码时间纸箱的抗压强度是会随着装载时间的延长而降低的，是一种疲劳现象。根据实验数据表明，在两小时以后，纸箱的抗压强度就会明显减少。在长期的载荷作用下，只要经历一个月，纸箱的抗压强度就会下降30%，90天的保管堆放大约会下降45%。我们在选择纸箱时，尤其是我们的货物走海运，一运就需要一个多月甚更久的时间，那么一定要考虑堆码时间对抗压强度的影响！
1. Stacking time of cartons the compressive strength of cartons will decrease with the extension of loading time, which is a kind of fatigue phenomenon. According to the experimental data, the compressive strength of the carton will be significantly reduced after two hours. Under the long-term load, the compressive strength of the carton will decrease by 30% and the 90 day storage pile will decrease by 45% after one month. When we choose cartons, especially when our goods are transported by sea, it will take more than a month or even longer. Then we must consider the impact of stacking time on compressive strength!
2. 纸箱堆放的温湿度环境我们的货物通常会发往全国各地乃全世界，每个地方的温湿度都有区别，比如说印度夏天常伴随雨季，是高温高湿的环境。温度对纸箱的抗压强度影响较小，但是湿度影响很大。当湿度和温度的增加，纸箱的粘合剂会产生乳化现象，从而造成瓦楞纸板粘合位脱离，纸箱的抗压强度将会明显下降。当温度为45℃、湿度95%RH时，抗压强度的下降幅度可达到60%以上，很容易造成纸箱坍塌。因此在选择纸箱时，一定要考虑到我们的货物仓储以及运输环境！
2. The temperature and humidity environment of carton stacking our goods are usually sent to all parts of the country and even the world. The temperature and humidity are different in each place. For example, India is often accompanied by rainy season in summer, which is a high temperature and high humidity environment. Temperature has little effect on the compressive strength of cartons, but humidity has a great effect. When the humidity and temperature increase, the adhesive of the carton will produce emulsification, resulting in the separation of the bonding position of the corrugated board, and the compressive strength of the carton will decrease significantly. When the temperature is 45 ℃ and the humidity is 95% RH, the decrease of compressive strength can reach more than 60%, which is easy to cause carton collapse. Therefore, when choosing cartons, we must consider our goods storage and transportation environment!
3. 纸箱含水率这点很容易理解，纸箱的含水量越高，纸质就会软化而抗压强度也就越低。但是我们容易忽略的是，在仓储和运输过程中，使用环境、天气、气候等因素都会对纸箱的含水量造成影响！
3. It is easy to understand the moisture content of the carton. The higher the moisture content of the carton, the paper will soften and the lower the compressive strength. However, it is easy to ignore that in the process of storage and transportation, the use environment, weather, climate and other factors will affect the water content of cartons!
4. 跌落撞击和振动冲击在正常运输和仓储过程中，机械装卸、人工误操作、车载颠簸都会对纸箱造成冲击，从而降低纸箱的抗压强度。在跌落撞击中，纸箱的顶面和底面落下对抗压强度影响更小，然后是四角和楞边落下，接连落下对抗压强度影响。在振动冲击中，振东冲击强度与运输距离、道路条件、轮胎充气状态、行驶速度等都有关系。振动冲击越大，对纸箱的抗压强度也就影响越大。因此我们在选择纸箱抗压强度时，还需要考虑到我们产品的运输方式、道路条件等。
4. Drop impact and vibration impact during normal transportation and storage, mechanical loading and unloading, manual misoperation and vehicle bumping will impact the carton, so as to reduce the compressive strength of the carton. In the drop impact, the falling of the top and bottom of the carton has the least impact on the compressive strength, then the falling of the four corners and edges, and the continuous falling has the greatest impact on the compressive strength. In the vibration impact, the impact strength of Zhendong is related to the transportation distance, road conditions, tire inflation state, driving speed and so on. The greater the vibration impact, the greater the impact on the compressive strength of the carton. Therefore, when selecting the compressive strength of cartons, we also need to consider the transportation mode and road conditions of our products.
5. 先写到这里。希望大家在选择纸箱时，不要仅仅看纸箱的状态，我们要综合考虑。尤其是运输价值较高的物品，一定要考虑。对于这些仓储和运输环境等对纸箱造成的影响是没有直接公式计算的，但是可以通过包装运输测试模拟产品在仓储和运输环境中的预期风险，根据或者行业标准验证纸箱等包装的可靠性！
5. Write here first. I hope that when choosing cartons, we should not only look at the best state of cartons, but also consider them comprehensively. In particular, the transportation of goods with high value must be considered comprehensively. There is no direct formula to calculate the impact of these storage and transportation environment on cartons, but the expected risk of products in storage and transportation environment can be simulated through packaging and transportation test, and the reliability of cartons and other packaging can be verified according to international or industry standards!
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