Corrugated box instead of wooden cases, but can not completely replace the main reason of wooden cases: 1. Water resistance, moisture resistance than the box; 2.Sharp, easy to cut their good; 3. As the wooden compressive strength. Especially the last point particularly large. Therefore, has the important meaning on how to improve the compressive strength of corrugated paperboard.
Corrugated box belongs to the container, test, according to the requirements of thepackaging container. The main test items are:
1, carton pressure test
Carton pressure test, namely compression test, is the most basic cartonperformance test. Through this test, we can determine the cartons compressivecapacity of different state.
Pressure test equipment used for carton, carton special pressure testing machine.Table the test pressure area is larger. The general is the area of plate, 1.5 x 1.5 meters or 1 m * 1 m. Additional connecting the two component is a supporting plate,its position is adjusted according to the size of the sample, with the proper height,and then tighten it, the other one is adding pressure plate, can slide along theguide rod, the pressure of the sample.
2, carton drop test
The general commodity packing drop test commonly used test, also used forcorrugated box. In different conditions by drop test can detect the fall, internalinstallation manual. By testing at the same time, can judge the carton cushionperformance and structure of the box.
Drop test is a simple test. This is applicable to the total weight of 150 kg or small package. The test equipment is relatively simple, can use the hook drop test machine, or hold type testing machine.
3, do not affect the performance
For a large weight or volume of packing, such as bag weighing more than 150 kg,can be used to detect cannot influence the test equipment, the resistance ofpackaging and influence events. Cannot impact test can imitate train, bus stop andstart, caused by strong impact load mountain. In addition, the test can also providethe transmission process (such as cargo transport belt, through it, handling and other links) caused by various impact load to provide similar experiments. The testequipment is a slide show, through the pulley and the baffle plate collision test.
4, six corner roller test
Six corner roller test, has been packaged goods cartons in the transport processsimulation, through a comprehensive test load. This test can imitate the cartons enter the warehouse, warehouse tank car, machine, or by ground transportation to another ground carton transport. In carton fall within the tester and is optional,there is no certain rule. Carton this autumn, the panel drum down, can also fall in the drum, each side, each carton, various load test every corner.
Through this test can achieve two goals: simulation box may be encountered in thetransport process of shock and vibration, determine the carton shock and vibrationcapacity; Determination of cartons, packaging material and defend ability and the internal affairs of earthquake. In addition, testing, to determine the carton joint andclosed is also useful for reliability. This was determined in the six corner drum testmachine.
5, vibration and shock resistance performance test
In the shipping carton will receive different frequencies and amplitudes, packing carton and carton, such as deformation and fracture, surface abrasion resistance,printing ink, dirty, through a process of transport for general vibration test of, can also be used to simulate, parameters of some known vibration can undertakestrain. Is very wide transportation in the vibration in the frequency range, so the test includes two aspects: one is to do not depend on the vibration of the carton,carton ability caused by repeated vibration fatigue and high frequency vibration;another is to box in the vibration table, low frequency vibration test, will lead todifferent carton. This test is low frequency vibration used in electronic instrument is very sensitive items.
The vibration frequency of vibration vibration test-bed carton can produce 1-80 Hzand 0.5-10 g (G = 9.81 M / s *) acceleration. Vibration test can be placed in the arena of cartons, carton binding according to need, or let the free flow. The testcan be stacked in the transportation process of imitation, simulation load applied.Should also conform to the shaking table and the stack and the content of totalcarton load requirements.
The basic test methods are representative, in the experimental conditions, such as fire, the inside of the train, automobile, airplane cabin vibration, the transport process. Vibration load depends on the traffic types.
The test box ant vibration intensity, style and adapt to the actual situation. Cartonstacking number is generally not less than three, the general stacking height should be determined by the transport type. Railway transport stacking height is 2.5 meters, 2 meters, 1.5 meters in the air car is. By the time the carton breakage rate to determine the end of test. Including carton joint and adhesive type boxdamaged wall breakage.
6, spray test
The specified conditions, decrease content protection ability within the timespecified and evaluation of carton and carton, water spray of water corrugated box.
