The length, width and height of folding corrugated carton are closely related to the damage of carton. The dimensions of cartons are generally determined according to the number of bottles to be packed and the bottle height. The box length is the number of bottles with the rectangle upward × The diameter of the bottle and the width of the box are the number of bottles in the width direction × The diameter of the bottle and the height of the box are basically the height of the bottle. The perimeter of the four sides of the box is equivalent to the whole side wall supporting the pressure load of the carton. Generally, the longer the perimeter is, the higher the compressive strength is, but this increase is not proportional.

如果四边周长太大，即内装物的瓶数比较多，整箱产品的毛重就大，对纸箱的要求也高，需求有较高的抗压强度和耐破度，来确保纸箱的使用性能，否则，纸箱比较容易在流通过程中产生破损等现象。市场上，596mL×24瓶纯水箱在所有的纸箱中破损大，就是由于其毛重较大，又是单瓦纸箱，在流通过程中容易产生破损现象。

If the perimeter length of the four sides is too large, that is, the number of bottles of the contents is relatively large, the gross weight of the whole carton is large, the requirements for the carton are also high, and there is a high demand for compressive strength and burst resistance to ensure the service performance of the carton. Otherwise, the carton is more likely to be damaged in the circulation process. 596ml on the market × The 24 bottles of pure water tank are greatly damaged in all cartons because of its large gross weight and single tile carton, which is easy to be damaged in the process of circulation.

折叠瓦楞纸箱

Folding corrugated box

在纸箱的长、宽相同的情况下，高度对空箱抗压强度的影响较大。在纸箱四边周长不变的情况下，随着纸箱高度的加大，抗压强度减少，降幅大约为20。由于瓦楞辊在使用过程中会受到磨损，使得瓦楞纸板的厚度达不到规定的要求，使得纸箱的抗压强度偏，纸箱强度也会下降。

When the length and width of the carton are the same, the height has a great influence on the compressive strength of the empty carton. When the perimeter of the four sides of the carton remains unchanged, the compressive strength decreases by about 20 with the increase of the carton height. Because the corrugated roller will be worn in the process of use, the thickness of corrugated board can not meet the specified requirements, so that the compressive strength of carton is low, and the strength of carton will also decrease.

产生折叠瓦楞纸箱变形的纸板本身较软，平面强度，刚性也，用这样纸板制成的瓦楞纸箱抗压强度、拆穿强度也小。由于瓦楞的形状与瓦楞纸板的抗压强度有直接联系。瓦楞的形状一般分为U型、V型、UV型。

The cardboard that produces the deformation of folded corrugated boxes is soft, with low plane strength and low rigidity. The corrugated boxes made of such cardboard have low compressive strength and tear through strength. Because the shape of corrugated board is directly related to the compressive strength of corrugated board. The shape of corrugated is generally divided into U-type, V-type and UV type.

U型蔓延性好，赋有弹性，吸收能量较高。在弹性内，当压力处理后仍能恢复原状，但因圆弧的着力点不稳定，故平压强度不高。V型与纸面触摸小，粘合性差，较易剥离。凭借两条斜线的合力作用，挺力好，平压强度较大。但如外力超越其承受的压力，楞形被破坏，后不能恢复原状。UV型取以上两种楞型的优点，耐压强度较高，有较好的弹性和弹性恢复能力，是比较理想的楞型。

U-shape has good spread, elasticity and high energy absorption. In the elastic, it can still be restored to the original state after pressure treatment, but the flat compression strength is not high because the force point of the arc is unstable. V-shape has small touch with paper, poor adhesion and easy peeling. With the combined force of the two oblique lines, the stiffness is good and the flat compression strength is large. However, if the external force exceeds the pressure it bears, the ridge shape is damaged and cannot be restored to its original state. UV type takes the advantages of the above two corrugated types. It has high compressive strength, good elasticity and elastic recovery ability. It is an ideal corrugated type.

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