Precautions for repairing bonding and joint of conveyor belt in summer

Release time:

2020-09-23

In summer, when the conveyor belt joint is bonded, there will be non-stick and falling off after bonding. This is due to the humid weather in summer, especially after rain, the air humidity is high, and a layer of white fog will appear after the glue is applied. This is because the solvent in the adhesive takes away a large amount of heat from the surface of the glue during the volatilization process, causing water vapor in the air to condense on the surface and form white fog. The aqueous interface formed on the surface is incompatible with the oily interface formed by the adhesive, and the chemical effect formed between the two surfaces is very small, resulting in a significant reduction in the bonding strength of the adhesive. The solution to this problem is to use baking to remove the water mist on the surface and dry the adhesive layer.
Another phenomenon is that the outside is dry and the inside is wet. The high temperature in summer makes the glue layer on the surface volatilize quickly. We mistakenly think that the glue layer is completely dry and can be operated. However, in actual operation, we will find that the glue layer is not completely dry. If the construction operation is carried out, it is easy to cause the joint to peel off or stick firmly. So we in the summer construction to ensure that the first brush glue when there is enough drying time, to ensure that the adhesive is fully volatile, the formation of a stable transition layer.

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