Plastic Laser Welding Machine
Product Description
Device Introduction:
Plastic materials can be divided into two main categories: thermoplastics and thermosetting plastics. For thermoplastics, conventional plastic welding methods (vibration, ultrasonic, hot plate) can be used for connection, so theoretically, all thermoplastics can be laser welded.
Since the principle of laser transmission welding is used, the thermoplastic materials that need to be welded should meet certain transmittance requirements. Generally speaking, when the transmittance of the upper layer material to near-infrared laser is higher than 50%, and the transmittance of the lower layer heat-affected zone material is lower than 20%, laser plastic welding will achieve better results.
The use of absorbers is a very important process in plastic laser welding technology. When the transmittance of the lower layer heat-affected zone plastic material to infrared laser is too high and cannot absorb enough laser energy, it will affect the formation and strength of the weld seam. At this time, an absorber is needed to improve the absorption rate to achieve the desired welding effect. Absorbers can be added to the material synchronously during injection molding or flexibly sprayed or printed on the contact surface of the welded parts.
Device Advantages:
(1) The weld seam size is precise, firm, airtight, and leak-proof, with the welding surface intact;
(2) During the welding process, there is less resin degradation and less debris generated, meeting the requirements of the food and pharmaceutical industries;
(3) Compared with other welding methods, it greatly reduces the vibration stress and thermal stress of the products;
(4) It can weld various types of different plastic materials together (other welding methods have significant limitations);
(5) Easy to control, proficient in welding products with complex shapes (even three-dimensional);
(6) Able to weld areas that are difficult to reach with other methods.
Device Field:
Plastic laser welding technology is widely used in medical devices, electronic components, automotive parts, textiles, and the packaging industry. For example, in modern vehicles, whether it is exterior decorative parts (such as bumpers, fenders, wheel covers, spoilers, etc.), interior decorative parts (such as dashboards, door inner panels, sub-dashboards, glove box covers, seats, rear protective plates, etc.), or functional and structural parts (fuel tanks, radiator water chambers, air filter covers, fan blades, etc.), the shadow of plastic parts can be seen everywhere.
泛应用于医疗器械、电子元器件、汽车零部件、纺织品、包装工业。例如；在现代车辆上，无论是外装饰件(如保险杠、挡泥板、车轮罩、导流板等)、内装饰件(如仪表板、车门内板、副仪表板、杂物箱盖、座椅、后护板等)， 还是功能与结构件(油箱、散热器水室、空滤器罩、风扇叶片等)，到处都可以看到塑料制件的影子。
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