Radiation welding of thermoplastics and non melting materials using laser light

摘要

The parts to be connected are first interlocked or held together by internal stresses, locked into the correct end position, to bring the joint surfaces into contact. They are then irradiated to melt them together, and the bond is cooled. Blunt contacting surfaces may be joined, avoiding irradiation of surrounding edge regions. Laser light with a wavelength between 0.5 and 10.90 mu m, pref. between 0.70 and 10.64 mu m is used. To weld non-thermoplastics, their joining surfaces are coated with thermoplastic.