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How to bond the metal carved board
Many buildings use metal engraved panels because they enhance the overall design of the building's exterior. However, many exterior wall panels have some damage, such as the outer wall panel bulging or falling off. This phenomenon has a certain relationship with the bonding degree of the board. If the degree of bonding is not enough, the board will fall off easily. phenomenon.
Some carved plates have been used for a long time, and the bonding layer has fallen off. The reason for this phenomenon is that the bonding area is less than 30%; the sag occurs in the bonding to cause the local cloth to be empty or viscous; the leveling mortar and the main wall are hollow, especially for a long time. Water seepage, prone to continuous empty drum and empty drum area, so that the insulation layer is accompanied by empty drum or partial damage; the surface load of the insulation board is too large, it is easy to directly peel off the insulation layer and cause it to fall off; the negative wind pressure resistance measures are unreasonable. It is easy to form some insulation plates that are destroyed by wind pressure and emptied. At the same time, we must pay attention to the length of the bonding time.
The correct solution is to train the on-site quality inspectors. On the basis of understanding the structure of the insulation layer, it is necessary to understand the characteristics of various materials and the methods of on-site inspection. During the construction, the bonding area should be controlled. Do not add too much water to the bonding materials used. When the interface treatment is performed on the surface of the site wall, the protective measures for the positive and negative wind pressure areas are strengthened by bonding and rivet reinforcement and maximized. The bonding area is compared with the time of the bonding material, and the laboratory of the manufacturer is inspected on the spot.
When the metal engraved plate is prepared, the bonding strength requirement of the external thermal insulation system should be fully considered. As long as it can comply with the requirements, it can be produced according to the standard, and the bonding strength of the general product is relatively good.