What are the precautions for the installation of aluminum plastic panels: Aluminum plastic boards can be connected with commonly used connection methods for processing of metal and plastic processing. Here are several commonly used connection methods. (1) The rivet connection aluminum -plastic plate can be connected between the rivets suitable for aluminum materials or between the board and other materials.
For the application of outdoor or high humidity areas, the core rivet of stainless steel core should be used to avoid rust and affect the aluminum plastic panel surface. If the rivet with iron core is used, the iron core must be pulled out after riveting. The hidden rivets can only be used for indoor applications. (2) Two types of use of thread fixed parts and two types of indoor use A. Outdoor fixing parts When using thread fixing parts outdoors, the thermal expansion coefficient of aluminum plastic panels is needed to avoid aluminum -plastic plates from squeezing deformation due to thermal deformation. The opening of the aluminum -plastic board needs to be greater than the screw diameter to meet the requirements of expansion and contraction.
The stainless steel screw pattern with a sealing cushion can avoid squeezing and deformation of aluminum -plastic plates. The functions of this product have been verified. To choose a screw suitable for structural materials, you should use a torque wrench or a screwdriver to fasten the screw to ensure that the pad is effectively sealed and opens the hole but it will not be too tight and leaves traces on the surface of the aluminum plate. Sometimes it is necessary to use a deform drill or sleeve to drill on the aluminum plate or the bottom structure to achieve the construction of the center position drilling and rivet.
It should be noted that the protective film is removed before fixed screws. b. The connection of the indoor indoor interior application can be used to fix screws with different head shapes or wooden boards. These screws usually do not allow aluminum -plastic plates to have armal expansion displacement.
The screws of the deep head can be used for fixed aluminum -plastic plates, and the usual horoscope can be used or directly pressing the aluminum panel into the plate. This kind of hole on the aluminum plate is greater than the diameter of the screw rod. (3) Plastic welding (only for PE core material) uses hot air for welding between plastic can be applied to the connection between aluminum plastic plates. Use electric heating welded welded guns to melt aluminum plate hungry polyethylene core material layer and Polyethylene plastic strips are connected after cooling. The following conditions are obtained by good welding quality: a. Prepare good plate edge interfaces; b. Clean hot air; c. Correct welding temperature; d. Correct contact pressure; e . Welding speed. (4) Plastic bonding uses metal adhesive/universal adhesive.
Used for indoor advertising boards and booth layout. Common metal or ordinary adhesives are suitable for bonding on the composite board. Double -sided tape is suitable for non -connection to intensity requirements.
For the occasion that requires high-intensity bonding, we recommend using a single-group bonding agent, Sika-Bond. It should be noted that when the adhesive is used for outdoor, the ability to withstand static intensity is average. When the aluminum plastic plate and other materials are bonded, the bonding failure may be caused by the different heat expansion coefficients of the material.
(5) The connection of the card connection can also be used to fix and connect the aluminum plastic plate. The fixture can seem to be made of aluminum or plastic material. Generally, it is composed of two parts and the screw is connected. Essence