(1) Corrugated model of corrugated board corrugated model is divided into four categories A, B, C and e according to the high score of corrugated board. The mechanical properties of different corrugated boards are also different. Type a corrugated board has the highest plane pressure and higher compressive strength, while type B has the opposite. Type C has better plane pressure, vertical pressure, parallel pressure and buffer force; Among the thickness of corrugated boards, type A is the largest, followed by type C, type B is the third, and type E is the smallest. Because the paperboard with small thickness is easy to process and bend, B-shaped corrugated paper is widely used for packaging and transportation with low requirements on the compressive strength of the box According to the different mechanical properties of corrugated board, it is better to use type A or C for single-sided corrugated box, type A, B or a combination of types B and C for double-sided corrugated box, and type B for those close to the outer surface, which can play an impact resistance role. A. Type B or the combination of type B and type C can improve the physical and mechanical properties of cartons; In terms of printability, type B and type C are conducive to printing.

(2) on the premise of ensuring the quality of corrugated boxes, the box shape of corrugated boxes should try to save carton processing materials and packaging costs. For example For cartons with the same volume, it is the most economical when the length: width: height is 2:1:2, and the most expensive when the ratio is 1:1:1. Therefore, square boxes should be avoided as far as possible We should also take into account the utilization rate of the product to the volume of the box, the utilization rate of the box to the volume of the truck and train carriage, and the stability of stacking during storage, transportation and pumping