To accurately calculate the compressive strength of the carton, first of all, the carton circumference, cardboard thickness and cardboard edge compressive strength must be measured, and the estimated value should be corrected in conjunction with the carton structure process. The strength can be calculated according to the transverse compressive strength of the base paper making up each layer of corrugated cardboard and the shape of the cardboard pit. For factories without test instruments, as long as they know the compressive strength or the compressive index of the base paper, the compressive strength of the carton can also be calculated. It must be pointed out that the ring pressure value of the base paper must be objective and true, and the ring pressure strength of the base paper must be a test value under a temperature and humidity environment of 23 ° C ± 1 ° C and 52 ± 2% RH.

Through a large number of test data verification, the result calculated by the following formula is closer to the true value, and the calculation is simple and easy to grasp. Recommend to everyone here:

B = 5.874 × E × T × C

B represents the compression of the carton, unit N; 5.874 is the coefficient; E represents the edge compression strength of the cardboard, unit N / m; T represents the thickness of the cardboard, unit m; C represents the perimeter of the carton, unit m.

Example: A common slotted carton with a size of 360mm × 325mm × 195mm, with a pit shape of C pit, a cardboard thickness of 3.6mm, and a side compressive strength of 4270N / m. Try to calculate the compressive value of the whole box.

answer:

It can be seen that the perimeter of the carton is 1.37m, the thickness of the cardboard is 3.6mm, and the edge compression strength is 4270 N / m

According to the formula: carton compressive strength B = 5.874 × E × T × C

B = 5.874 × 4270 × 0.0036 × 1.37 = 1755N

PET Strapping

Pet Strapping is currently the most popular alternative strip and baling wire,as a new material, pet strap has low cost, high tensile stregth, improve handing efficiency advantages. Plastic Steel Strapping used in wood packing, steel packing, glass packing, metal packing etc. PET steel strap is moistureproof, waterproof, anti-rust. The thickness of pet Strapping band is 0.6 to 1.5mm, width is 12 to 25mm, tensile force is 200 to 1200kg. Could make customized pet steel strapping.

PET Strapping

Pet Strapping,Pet Packing Strap,Thickness Packing Material Pet Strap,Green Pet Strapping

Dongguan Yalan Packing Materials Co., Ltd. , https://www.yalanpack.com