1, after the completion of the construction tempering, to ensure that the heat shrink belt gel layer fully melted, when the appearance of bubbles, the use of rollers to compress the heat shrink belt surface bubble rear position, gradually push the bubbles out of both sides. When rolling, pay attention to the use of force paths and techniques. Can not be too strong, resulting in the local layer of glue too thin, bubble dispersion and so on. If the corrosion has been cooled and hardened, it needs to be reheated, and so the adhesive layer is fully softened, this time we continue to drive away the bubbles.
2, in the construction can try to avoid the production of bubbles, in both ends of the mat 3 pairs of wood lining, so that the upper and lower reservation sizing about the same, the use of medium fire from the middle along the ring to the two sides of the uniform movement of heating. Shrink the shrink band evenly from top to bottom to avoid bubbles and folds.
3, inevitably in the anti-corrosion layer is often doped into more or less bubbles. The presence of bubbles in the corrosion protection layer will affect the bondability of the product, which directly affects the detection of peeling strength. After the construction is completed, there will be a bubble-out process.
Therefore, when we wind the shrink belt, we find that there are bubbles in the material memory, which can be eliminated according to the methodtded by the above small compilation. However, it should be noted that when the anti-corrosion material for the elimination of bubbles, must regulate their own operating methods, otherwise it is likely to cause damage to the anti-corrosion material.
