The hottest factors affecting the compressive stre

2022-08-09
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Factors affecting the compressive strength of carton compression testing machine

i.ink "> cartons are made of paper at all levels. How good are carton instruments and meters in technology? The reasonable collocation of paper is the basic condition to ensure the compressive strength of cartons.

through the test of the physical properties of paper at all levels, we can preliminarily calculate the compressive strength of cartons, and then through the calculated compressive strength, carton compressive testing machine can control the compressive strength of cartons in all processes in the production process.

Second, the ring compressive strength of paper is the key to ensure the compressive strength of cartons, but other physical properties of paper can not be ignored

paper, especially 1. The plastic processing industry has entered the period of increasing speed and shifting gears, and achieved a stable and healthy development. When the tensile strength of corrugated paper is not enough, the force value and deformation of the carton will increase steadily in the compression test. The final value is very high and the effective value is very low, and the deformation of the carton after the test is like an accordion. The waterproof performance of paper is also very important, especially the refrigerator has higher requirements for the waterproof performance of paper. Sometimes, although the compressive strength of the carton is very high, because the paper is not waterproof, the carton is easy to absorb moisture when stored in the cold storage, resulting in the collapse of the warehouse

III. The production process of cartons will also affect the compressive strength

according to the test, under the same conditions, the compressive strength of the carton will decrease by 90N ~ 130n and the deformation will increase by about 2mm for each 1mm widening of the transverse pressure line of the carton. If the pressing line is too wide, the force value of the carton will increase slowly during the compression test, the effective value will be small, and the final deformation will be large. In order to ensure the compressive strength, we should try our best to improve the production process and reduce the impact of various processes on the compressive strength of cartons

IV. select the appropriate corrugated box according to the carton type. After low-speed impact, the damage phenomenon on the composite surface is often not observed by visual method, but the obvious delamination damage type inside the material is also critical

in people's consciousness, it is often believed that the larger the ridge, the higher the compressive strength of the carton, and it is easy to ignore the influence of the ridge on the deformation. The larger the ridge, the greater the compressive strength of the carton and the greater the deformation; The smaller the ridge, the smaller the compressive strength of the carton and the smaller the deformation. If the carton is too large, but the corrugated shape is very small, the carton is easy to be crushed during the compression test; The carton is too small, but the corrugated shape is very large. During the compression test, the deformation will be too large. The cushioning process of the carton compression tester is long, and the deviation between the effective value and the final force value is too large

v. the influence of moisture on the compressive strength of cartons cannot be ignored

the production environment, storage environment, environment such as oxide skin, metal debris, weather, climate and other factors of the carton will affect the moisture content of the carton. In order to ensure the compressive strength of the carton, we should try to avoid the influence of the external environment on the moisture content of the carton and keep the carton dry

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