Parallel products are often used in hot plate welding process, is the use of electric heating metal mold to soften the plastic plate surface so as to achieve the purpose of softening welding, applied to a lot of hot plastic parts, especially thermoplastic PP or PE plastic plate. Different surface temperatures for different materials of plastic sheet, so the application of different materials. This welding method has a higher strength, but the process is relatively long,
On the plastic plate welding processing, there are different ways and methods, according to the material properties and the use range of plastic board to choose, such as hot air welding, hot plate welding or bonding, and so on, the following to introduce.
Hot plate welding
Solvent bonding is commonly used in the welding of amorphous thermoplastic parts. Solvent bonding is a simple, relatively easy way to seal the formation of a solid amorphous thermoplastic parts. As the solvent bonding degree is low, the surface of the workpiece must be flat and smooth, so that the welding effect can be good.
The same plastic sheet metal parts can be used to connect different materials, in addition to the thermal plastic parts, plastic parts and metal parts can also be connected. Adhesive selection factors including substrate surface characteristics, the use of the environment, substrate expansion coefficient, sealing requirements and use. This welding method has good electrical insulation and thermal insulation, and can be used to buffer the vibration, the use of flexible, permanent assembly and other advantages.
Hot air welding
Usually, hot air welding used for plastic pipe or plastic semi-finished products for welding work, widely used to connect the thermal plastic profiles and sheet production of large parts of the work, a lot of hot plastic car plate as well as plastic mold parts are welded in this way.
Extrusion welding is a welding method developed by hot gas welding, which is used for automatic welding of sheet structure.
Above is the different welding method of plastic sheet, it is a reasonable choice for staff according to the actual situation.