| 摘要 |
<p>This invention relates to a method for making a tight fitting thermoplastic coaxial connection between an external metal element and internal metal element, that consists in: - heating the external element at a higher temperature than the temperature needed to avoid the jamming of the two parts, at such temperature the material has a plastic behaviour; - inserting the internal element inside the external element; - heating the internal element at the same temperature of the external element, so that, by elastically dilating, it will form a connection with the external element; cooling the lot at room temperature.</p> |
