1. Welding of heating plate of PP plastic water tank Heating plate welding (flat products) is a thermoplastic welding process that uses electric heaters to shape metal materials and soften the surface of connected plastic products. It is basically suitable for any undulating thermoplastic products. It is also suitable for welding soft semi-crystalline thermoplastics, such as PE board or PP plastic water tank. Because different mold surface temperatures can support two different thermoplastic materials, this process is suitable for welding different materials. Heating plate welding can achieve high welding strength. However, the duration of this process may be long, which takes 15 seconds for small products and several minutes for very high-end products. 2. Warm flow welding of PP plastic water tank. Warm flow welding is widely used to connect thermoplastic aluminum profiles and plastic plates. This is very effective. Welding method of products. It is suitable for the repair of small injection molding products, thermoplastic products and the production of prototype parts that need to be assembled. It is very important to use the same brand of polymer as the welded product to produce welding wire. Extrusion welding is a welding method through warm flow welding. It is necessary to make an overall plan for chip-based automatic welding. 3, PP plastic water tank adhesive can be used to connect plastic products made of the same material and polymer, generally used to connect products made of different materials. Connect thermosetting plastic products with each other, or connect plastic products with metal materials. 4. Organic solvent bonding of PP plastic water tank. Organic solvent bonding is a way to assemble some thermoplastic products. It is common in amorphous thermoplastic products. Solvent bonding is a simple and relatively inexpensive method to form a strong sealing assembly of amorphous thermoplastics. The low viscosity of the solvent requires that the adhesive product cannot be bent and has relatively strict dimensional tolerance during molding.