Most of the reasons for layering are due to adhesive problems. The ratio of raw and cooked rubber in glue is generally 6:4, and the deviation of the proportion should not be more than 10%. Excessive raw rubber, long gelatinization time, resulting in insufficient gelatinization; too much glue, poor glue penetration, bonding is not strong. The optimal ratio depends on factors such as the manufacturer gradually integrating his own paper in production. At the same time, the moisture content in the glue liquid should also be moderate, the glue liquid is too thick, the adhesive strength is reduced, and if it is too thin, it is not bonded. In addition, the glue film thickness control is also more important, the standard is to fill the glue on the corrugated peak. On the machine side, the temperature at the entrance of the double-sided machine should not be too high, so as to avoid premature aging of the glue before the paper is pasted, resulting in false adhesion. At the same time, the tension of the paper is also an important factor. If the tension is insufficient, the individual tiles will be shaken before they enter the double-sided machine, causing momentary relative slippage between the layers of bonded single-paper and false adhesive phenomena. For these reasons, it can also occur at a single-sided machine, causing delamination of single watts. At the same time, single tile or paperboard is also very important in the control of composite forming pressure. Many times, due to lack of pressure, false bonding can occur. There is a single tile on the bridge, the surface, the paper in the storage or use must be careful not to produce indentation, pits and other defects, these defects will cause blisters, empty sticky and so on.
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Intelligent Electric Cooling Mattress
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