Infrared halogen lamps are used for plastic welding:
Application scenarios in plastic welding
Thermoplastic plastic welding
Pipe welding: In the water supply and drainage system, commonly used thermoplastic plastic pipes (such as PP-R pipes, PE pipes) can be welded using infrared halogen lamps. For example, in the connection of PP-R pipes, the connection parts of the pipes and fittings are heated with shortwave halogen infrared lamp to soften the surfaces of the pipes and fittings. Then the pipes are quickly inserted into the fittings and a certain pressure is maintained until cooling to complete the welding. This welding method can ensure the sealing and firmness of the pipe connection, and the welding process is relatively fast and efficient.
Plastic sheet welding: For the splicing of plastic sheets (such as PVC sheets, ABS sheets),IR infrared halogen lamps are also an effective welding tool. In the manufacture of automotive interior parts, plastic containers, etc., plastic sheets of different shapes need to be welded together. By adjusting the position and power of the IR Halogen Heat lamp, the splicing edge of the plate is heated, and the edge is softened before butt or overlap welding, which can obtain a welding product with better quality, and the welding parameters can be flexibly controlled according to the thickness and material of the plate.
Plastic component assembly welding
In the manufacture of plastic products such as electronic product shells and toys, it is often necessary to assemble and weld multiple plastic components together. Infrared halogen lamps can locally heat the connection parts of these components to achieve precise welding. For example, in the assembly process of a mobile phone shell, the connection buckles and other parts of the shell are heated by infrared halogen lamps, and then assembled and welded after softening, which can not only ensure the beautiful appearance, but also make the connection between components firm.
Advantages
Fast heating speed:Halogen Heating Heater Lamp can quickly heat plastics to a softened or melted state. Compared with traditional hot plate welding or hot air welding, the heating speed can be increased by about 30% – 50%. This is because infrared radiation can directly penetrate the plastic surface, allowing the internal molecules to quickly absorb energy, thereby shortening the preheating time for welding. For example, when welding some small plastic parts, it may only take a few seconds to make the plastic reach the required temperature for welding using an infrared halogen lamp, greatly improving production efficiency.
Good heating uniformity: By reasonably arranging the position and number of infrared halogen heating lamp, uniform heating can be achieved at the plastic welding site. This uniform heating is essential to ensure welding quality, because uneven heating may cause local overheating of the plastic and deformation, or insufficient local heating and failure to form a good welded joint. For example, when welding large plastic sheets, by using multiple infrared halogen lamps or lamps with reflective covers, each part of the edge of the sheet can get uniform heat to ensure the flatness and firmness of the weld.
Accurately control welding temperature:IR glass infrared halogen heater emitter can be used in conjunction with temperature control systems to accurately control welding temperature. Different plastics have different softening points and melting points. By adjusting parameters such as lamp power and irradiation time, the heating temperature can be accurately controlled according to the type and thickness of the plastic. This helps to avoid damage to the plastic due to excessively high temperatures, or the inability to complete welding due to too low temperatures. For example, when welding heat-sensitive plastics, the temperature can be controlled within a very narrow range, ensuring the welding quality while protecting the performance of the plastic.
Advantages of non-contact welding: As a non-contact welding method, IR infrared heater halogen heating element will not cause mechanical damage to the plastic surface like contact welding tools. When welding some plastic products with high surface quality requirements (such as optical plastic lenses and high-end plastic product shells), this non-contact welding method can maintain the smoothness and precision of the plastic surface and reduce subsequent processing steps.
