| 摘要 |
A method for welding two opaque elements of polymer material is provided to pass through laser radiation by adding pigment into an upper element, and thus blocking visible ray and passing only laser radiation. A method for welding two opaque elements of polymer material comprises a step of manufacturing a lower element(2) of polymer material stable at high temperature; a step of manufacturing an upper element(4) of polymer material stable at high temperature; a step of welding the lower and upper elements through a laser; and a step of adding pigment into the upper element. The upper element passes laser radiation while blocking visible ray. The pigment is mineral compounds or organic compounds. |
