| 摘要 |
The invention relates to a pipe connection, particularly a gas-tight pipe screw connection, wherein the parts in the connecting region are connected by means of joining according to DIN 8593 by way of contact-pressing and insert-pressing, comprising an inner pipe part (I) and an outer pipe part (A), or two inner pipe parts (I) having an outer collar (A). In order to improve the usage properties in practice in the field, particularly in order to maintain the tightness of the respective pipe connection with combined loading, according to the invention the connection is established using three regions, wherein the connecting regions of the press fit (1) and stop (2) of the pipe parts, or the pipe parts and collar, comprise cooperating press fit surfaces (1I, 1A), which have a truncated cone shape and which are inclined in the end direction from the inner pipe part toward the pipe axis (x), and at the front comprise stop surfaces (2I, 2A), which have a truncated cone shape and are directed counter to said press fit surfaces (1I, 1A), and a transition (3) is formed by the press fit (1) and stop (2) of the connected parts for said parts without contact with a coaxial intermediate space or hollow space (R). |
