| 摘要 |
A method for production of simultaneous lap and butt joints directs electromagnetic radiation (12) through a radiation transmitting material (40 ) to an absorbing material (44a, 44b, and 44c) that absorbs radiation (12) wit h the generation of heat. The heat provides sufficient molten material in interfaces (50a, 50b and 50c) to fuse and bond: 1) pipe ends (14, 24) to eac h other in a butt joint (22; 2) pipe end portion (16) to sleeve (40) in a lap joint (28a), and 3) pipe end portion (26) to sleeve (40) in a lap joint (28b ). Use of a sufficiently clear material for sleeve (40) allows visual inspectio n of joints (22, 28a, and 28b). Butt joint (22) can be formed by conductive heating without absorbing material (44a) to provide a smooth interior bore useful for transporting high purity fluids without risk of absorbent contamination or debris and organism collection in gaps found in previous joining techniques. |
