大咖分享（六）| 朱雄波总经理：可激光焊接尼龙材料的开发应用

Core Viewpoint - Laser welding technology shows significant application potential in the fields of new energy vehicles, low-altitude economic equipment, and precision electronic device packaging due to its non-contact, high efficiency, high precision, and low thermal impact advantages [2] Group 1: Laser Welding Technology - Low transmittance can lead to excessive absorption of laser in upper materials, resulting in insufficient welding strength, while high transmittance requires reduced mold temperature to decrease crystallinity, affecting mechanical properties and potentially causing deformation during cooling [2] - The development of laser-weldable nylon materials was discussed by Zhu Xiongbo, General Manager of Chengdu Boma Polymer Materials Co., Ltd., at the "2025 Advanced Nylon Industry Innovation and Application Development Conference" [2] Group 2: Material Development Techniques - To address low warpage deformation issues, Boma adopted low-viscosity resin matrices combined with special crystallization control technologies, significantly reducing deformation and ensuring welding surface flatness controlled below 0.25 mm [4] - Boma collaborated with partners to develop special refractive index-matching glass fibers, enhancing the transmittance of 1 mm thick materials to 65%-82%, far exceeding conventional material levels, ensuring efficient laser energy penetration and precise capture by the underlying absorption layer [5] Group 3: Production Process Control - Strict production process control is fundamental for stable performance, including unique dehumidification drying systems and strict control of processing temperatures (<125°C) and moisture content to prevent nylon hydrolysis degradation [5] - The use of micro-external release agents (approximately 0.0003) addresses injection molding adhesion issues in high glass fiber materials, ensuring product appearance and dimensional accuracy [5] Group 4: Training and Workshops - Zhu Xiongbo will serve as a lecturer at the "Nylon Modification and High-Performance Processing Technology" advanced training course (8th session) on July 4-5, 2025, discussing key issues in nylon material development and processing [6][11] - The training program includes various topics such as the characteristics and modification of high-temperature nylon resins, the impact of additives on glass fiber-reinforced nylon performance, and the industry progress of halogen-free flame retardants [7][8][10]