| 摘要 |
In a plate which is couplable to the edge of an opening provided in a tubular element, the edge of the plate (1, 100) is shaped to correspond with the opening (22, 220) to make at least the edges of the opening (22, 220) and of the plate (1, 100) removably couplable. The plate comprises: a seating (11, 110), provided near the internal face (1D, 100D) thereof; closing means (13, 130), at least partially housed within the seating (11, 110) and capable of fusing, following a predetermined rise in the temperature of the assembly consisting of the tubular element (2, 220) and of the plate (1, 100), and to invest the edge of the plate (1, 10 100) and of the opening (22, 220), and, consequent to cooling of the assembly, to solidify, causing the plate (1, 100) to weld unremovably to the edge of the opening (22, 220). |
