Hot plate welding automotive interior parts

Hot plate welding is widely used for larger or oddly shaped plastic parts, as well as for softer composite materials (TPE, TPO, TPR) welding. The principle of hot plate welding is to use electric heating to control temperature changes, transfer heat to plastic parts through hot melting heads, and achieve the desired effect of hot pressure deformation. The high strength of the hot plate weld makes it easy to achieve high-strength sealing.

There are many plastic parts on the car body, and plastics mainly have the advantages of lightweight, beautiful appearance, easy processing and molding, and sustainable use. Many plastic parts and interior parts on the body also use the process of hot plate welding, such as plastic fuel tank kettles, batteries, tail lights, glove boxes.

Hot Plate Welding Machine mainly has hydraulic drive, servo motor drive, cylinder drive several kinds, and among them, the servo motor driven hot plate welding machine is actually the most stable, can be deep mode welding, but its production cost is relatively high compared to the other two.

When the hot plate welds automotive interior parts, the parts come into contact with, or close to, the hot plate or infrared heat source to promote heat transfer in the joint. After the plastic melts, the hot plate shrinks rapidly. The pressurized elements are pressed in contact with each other under pressure until the material is completely cooled and the bond is firm.

Throughout production, the heating plate must be kept at a programmed temperature. In addition, at the beginning of the production shift, the heating plate needs to be preheated and a certain amount of power needs to be consumed. Hot plate welding machine can be used to cope with different requirements of the workpiece any welding production, so that the workpiece welding strength after the production is completed to meet the relevant standards. The heating rod built into the heating plate on the hot plate welding equipment also needs to be replaced because the heating rod is a consumable, but it is less costly and more durable. The life and durability of the non-stick coating on the heating plate is limited, so the surface must be sprayed regularly. If the welding material contains glass fibers, the heating plate is easy to wear, and the heating plate spare parts must be prepared for replacement.