Calculate the carton area (total length * total width)

Total length = (box length+box width) *2+ connector (one barge box)

Total length = (box length+box width+joint) *2 (double barge box)

Total width = (carton width+upper cover size+lower cover size, that is, cardboard ordering area = paper degree * paper length)

2. Calculate the weight per unit area: AB Leng = basis weight of face paper +B Leng * 1.36 (corrugated rate)+core paper +A Leng paper * 1.5 1 (corrugated rate)+backing paper.

B = basis weight of face paper+basis weight of B * 1.36 (corrugated rate)+backing paper.

Corrugation rate is a description of the extra board length consumed by corrugated base paper. Corrugation rate of different corrugated boards

Generally as follows: A= 1.5 1, B= 1.36, C= 1.44, E= 1.3 1, and f =/kloc-0. Due to the different initial specifications of corrugated rollers used by manufacturers, the consumption of cardboard on the machine is different, and the corrugated rate of different machines is also different.

The ratio of shortening of corrugated base paper in the paper length direction due to corrugated pressure is called compression ratio.

Corrugated board, also called corrugated board. It is made of at least one layer of corrugated paper and one layer of cardboard (also called cardboard), which has good elasticity and ductility. It is mainly used to make packaging materials for fragile goods such as cartons and carton sandwiches. There are clear provisions in GB 5034.

The number of class A, B and C stare blankly is 34 2, 40 2 and 50 2 respectively?