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. 紙箱堆放的溫濕度環(huán)境我們的貨物通常會(huì)發(fā)往全國(guó)各地乃全世界，每個(gè)地方的溫濕度都有區(qū)別，比如說(shuō)印度夏天常伴隨雨季，是高溫高濕的環(huán)境。溫度對(duì)紙箱的抗壓強(qiáng)度影響較小，但是濕度影響很大。當(dāng)濕度和溫度的增加，紙箱的粘合劑會(huì)產(chǎn)生乳化現(xiàn)象，從而造成瓦楞紙板粘合位脫離，紙箱的抗壓強(qiáng)度將會(huì)明顯下降。當(dāng)溫度為45℃、濕度95%RH時(shí)，抗壓強(qiáng)度的下降幅度可達(dá)到60%以上，很容易造成紙箱坍塌。因此在選擇紙箱時(shí)，一定要考慮到我們的貨物倉(cāng)儲(chǔ)以及運(yùn)輸環(huán)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. 紙箱含水率這點(diǎn)很容易理解，紙箱的含水量越高，紙質(zhì)就會(huì)軟化而抗壓強(qiáng)度也就越低。但是我們?nèi)菀缀雎缘氖?，在倉(cāng)儲(chǔ)和運(yùn)輸過(guò)程中，使用環(huán)境、天氣、氣候等因素都會(huì)對(duì)紙箱的含水量造成影響！

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. 跌落撞擊和振動(dòng)沖擊在正常運(yùn)輸和倉(cāng)儲(chǔ)過(guò)程中，機(jī)械裝卸、人工誤操作、車(chē)載顛簸都會(huì)對(duì)紙箱造成沖擊，從而降低紙箱的抗壓強(qiáng)度。在跌落撞擊中，紙箱的頂面和底面落下對(duì)抗壓強(qiáng)度影響更小，然后是四角和楞邊落下，接連落下對(duì)抗壓強(qiáng)度影響。在振動(dòng)沖擊中，振東沖擊強(qiáng)度與運(yùn)輸距離、道路條件、輪胎充氣狀態(tài)、行駛速度等都有關(guān)系。振動(dòng)沖擊越大，對(duì)紙箱的抗壓強(qiáng)度也就影響越大。因此我們?cè)谶x擇紙箱抗壓強(qiáng)度時(shí)，還需要考慮到我們產(chǎn)品的運(yùn)輸方式、道路條件等。

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. 先寫(xiě)到這里。希望大家在選擇紙箱時(shí)，不要僅僅看紙箱的狀態(tài)，我們要綜合考慮。尤其是運(yùn)輸價(jià)值較高的物品，一定要考慮。對(duì)于這些倉(cāng)儲(chǔ)和運(yùn)輸環(huán)境等對(duì)紙箱造成的影響是沒(méi)有直接公式計(jì)算的，但是可以通過(guò)包裝運(yùn)輸測(cè)試模擬產(chǎn)品在倉(cāng)儲(chǔ)和運(yùn)輸環(huán)境中的預(yù)期風(fēng)險(xiǎn)，根據(jù)或者行業(yè)標(biāo)準(zhǔn)驗(yàn)證紙箱等包裝的可靠性！

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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