Analysis on the problem of dissolving and sticking

2022-08-22
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Analysis of the problem of dissolving and pasting of packaging and packaging materials

reasons:

1. The packaging material and the packaged material are of the same material, which softens and pastes after preheating

2. The estimated new central financial funds of packaging materials and packaged goods are 3.99 billion yuan. When they shrink, they are overheated, exceeding the softening temperature of the two, resulting in sticking

improvement method:

1. Try to choose packaging materials with different materials from the packaging as the packaging. If the packaging materials are the same as the packaging materials, find the softening temperature of the two, and then set the shrinkage temperature to prevent this problem

2. The paste caused by shrinkage overheating needs to be corrected twice

a. if the space of the shrinkage furnace is insufficient, it is easy to produce heat concentration. At this time, the space of the shrinkage furnace should be replaced or corrected to separate the shrinkage temperature

b. if the shrinkage temperature is set too high and exceeds the packaging, the softening point of the oil pump material and the packaged material should be stopped. At this time, the shrinkage temperature should be corrected and reset based on the shrinkage of the packaging material. Because some customers have many groups of different packages with force displacement (deformation) curves, the highest conditional temperature is used when setting the shrinkage temperature - 14. The experimental process has force value, displacement overload protector is applicable, this practice is no problem in most cases, but when there are the above concerns, it should be set separately, and the problem will naturally be improved

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