Paper Ring Pressure Tester: Test Method for Corrugated Board Performance

Paper Ring Pressure Tester: Test Method for Corrugated Board Performance  

Dongguan Haida Instrument 400-071-1808/0769-89280808

Corrugated cardboard and corrugated boxes have five performance testing methods including edge pressure strength, burst strength, puncture strength, adhesive strength, and pressure resistance test.

Performance tests must be performed on all specimens. The test was performed after treating the sample for 24 hours in a constant temperature and humidity environment with a temperature of 23 °C ± 2 °C and a humidity of 50 % ± 5 %.

First, the side pressure strength test

Instrument: HD-513-2 compression tester, also known as micro-computer side compression strength testing machine, compression strength testing machine, edge compression testing machine, microcomputer ring crush strength testing machine, ring crush strength testing machine, the ring compression testing machine

In the corrugated direction, a certain thickness ( 25mm ) of corrugated cardboard, the unit of length can withstand the vertical and uniform increase in force, called the corrugated cardboard side pressure strength.
The unit of side pressure strength is: N/m .
Three specimens from each of the three specimens were measured to have a size of 100 mm ± 0.5 mm × 25 mm ± 0.5 mm. A total of nine specimens with no printing, no mechanical indentation, and damage were obtained.
The side pressure strength test instrument is a compression strength tester
The main parameters of the HD-513-2 tester are:
Capacity: 10,20,50,100,200kg ( optional ) ;

Decomposition degree: 1/100,000 ;

Accuracy: ≤ 0.5%

Display mode: LCD display

Pressure plate: 100 × 100mm or visual pressure depending on the sample diameter;

Compression spacing: 80mm ;

Platen parallelism: ± 0.05mm

Ring pressure test specimen: 152.4 × 12.7mm

Pressure test specimen: 25 × 100mm

Test speed: 12.7mm/min

Horsepower: 1/8HP ;

Dimensions: (L × W × H) 570 × 415 × 730mm

weight   Quantity: 48kg ;

Electricity   Source: 1 inch, AC220V, 1.5A

The side pressure strength test method is to place the sample in the middle of the pressure plate under the tester so that the corrugation direction of the sample is perpendicular to the two pressure plates. The sample is supported by the guide block so that the surface of the sample is perpendicular to the platen and the tester is applied. pressure. When the pressure is close to 50N , remove the guide block until the sample is crushed and record the maximum pressure that the sample can withstand. Readings are accurate to 1N .
For the test results, find the arithmetic mean and calculate the side pressure strength according to the following formula.
R=F×1000÷L
Where : R- side pressure intensity unit N / m ;
F- sample withstand maximum pressure N ;
L- sample long dimension mm .
The unit of side pressure strength is N/m , and the length of the long side of the sample is 100mm , which requires data processing. First convert 100mm to 0.1m and calculate according to the above formula. Assume that the arithmetic mean value of the maximum pressure that the sample bears during the test is 680N . After data processing, it is: 680N/0.1m=6800N/m
Then, according to the above formula, the side pressure intensity value of the sample is: 6.80×103N/m
The side pressure of the corrugated board directly affects the supporting strength of the corrugated box. The corrugated board production process, the structure of the corrugated board, the shape of the crucible, the quality of the adhesive and other factors can all affect the side pressure strength of the corrugated board.

Here, Haida Instruments only introduced the side-pressure strength of corrugated board. It also has the properties of burst strength, puncture strength, adhesive strength, and compression test. It will be presented in the next section. Welcome to read! ! !