Corrugated board thickness refers to the vertical dista […]
Corrugated board thickness refers to the vertical distance between the upper and lower sides of the corrugated board under a certain pressure, in millimeters, which is one of the inspection items of the appearance defects of the carton, and directly affects the edge pressure strength, puncture strength and compressive strength of the board. . There are many reasons for affecting the thickness of the cardboard. If the thickness of the corrugated cardboard is thin, the edge strength, puncture strength and compressive strength will be reduced accordingly. Corrugated cardboard has different thicknesses and different thicknesses.
The thickness of the board is usually measured in a laboratory using a corrugated board thickness gauge. The thickness gauge has a circular anvil and a cylindrical measuring head, and the measurement results can be read by the display. The pressure applied by the measuring head is 20 kPa ± 0.5 kPa, and the diameter of the measuring surface is about 35.6 mm.
The greater the thickness of the cardboard, the higher the vertical compression and flat compressive properties of the carton. Therefore, the thickness index of corrugated board is a test item that cannot be ignored in the production process. The thickness of the paperboard of a batch of products should be consistent, and the thickness of different parts of the same piece of paperboard should be uniform.