Pipe joint, which comprises at least one first pipe section (2), and a sleeve part 5, into which the butt end part of the pipe section (2) is disposed in such a way that the sleeve part (5) extends a distance on top of the pipe section (2) from the butt end of the pipe section that is inside the sle
Pipe joint, which comprises at least one first pipe section (2), and a sleeve part 5, into which the butt end part of the pipe section (2) is disposed in such a way that the sleeve part (5) extends a distance on top of the pipe section (2) from the butt end of the pipe section that is inside the sleeve, and heating means (7), such as resistance wires. For forming the joint, a joint component (3) is arranged between the outer surface (16) of at least one pipe section (2) and the inside surface (15) of the sleeve part (5), which joint component is configured to form a joint with the sleeve part (5) when the joint area is warmed with the heating means (7), and that a collar (6) is arranged on the pipe section (2), which collar comprises a detent surface (10) for the joint component (3). The invention also relates to a method for forming a pipe joint.
대표청구항▼
1. A method for forming a pipe joint, comprising the following steps: forming at least one first pipe section (2) of metal,forming a sleeve part (5), into which a butt end part of the at least one first pipe section (2) of metal is disposed, wherein the sleeve part (5) extends on top of the at least
1. A method for forming a pipe joint, comprising the following steps: forming at least one first pipe section (2) of metal,forming a sleeve part (5), into which a butt end part of the at least one first pipe section (2) of metal is disposed, wherein the sleeve part (5) extends on top of the at least one first pipe section (2) of metal a distance from the butt end of the at least one first pipe section of metal that is inside the sleeve part (5),providing heating means (7),arranging a joint component (3) between an outer surface (16) of the at least one pipe section (2) of metal and an inside surface (15) of the sleeve part (5),forming a joint between the sleeve part (5) and the joint component (3) when a joint area is warmed with the heating means (7), andforming a collar (6) on the butt end of the at least one first pipe section (2) of metal, said collar (6) comprises a detent surface (10) for the joint component (3) when the joint component (3) is arranged against the collar (6), before the formation of the joint. 2. The method according to claim 1, wherein a second pipe section (2′, 4) in addition to the first pipe section is arranged in the sleeve part in such a way that a butt end part of the second pipe section is aligned against the first pipe section (2) in the sleeve part, and in that a second pipe part forms a joint with the sleeve part (5) when the joint area is warmed with the heating means (7). 3. The method according to claim 1, wherein a second pipe section (4) in addition to the at least one first pipe section is arranged in the sleeve part (5) wherein a butt end part of the second pipe section is aligned against the at least one first pipe section (2) in the sleeve part, and in that for forming the joint, a joint component (3′) is arranged also between the outer surface (16′) of the second pipe section (2′) and the inside surface (15) of the sleeve part (5), said joint component (3′) forms a joint with the sleeve part (5) when the joint area is warmed with the heating means (7), and in that a collar (6′) is arranged on the second pipe section (2′), said collar comprises a detent surface (10′) for the joint component (3′), before the formation of the joint. 4. The method according to claim 1, wherein the sleeve part (5) comprises a chamber space, into which opposing butt ends (8, 9) of pipe parts (2, 2′; 4) to be joined together are disposed essentially against each other in such a way that the sleeve part (5) extends a distance from a point of connection of the pipe parts (2, 2′, 4) to be joined together on top of both pipe parts (2, 2′, 4). 5. The method according to claim 1, wherein the collar (6, 6′) is formed by working the butt end of the at least one pipe section (2, 2′). 6. The method according to claim 1, wherein the collar (6, 6′) is formed by connecting a ring part to the butt end of the pipe. 7. The method according to claim 1, in that in the method the first pipe section is of steel. 8. The method according to claim 1, wherein a second pipe section (2′) is of metal. 9. The method according to claim 1, wherein a second pipe section (4) is, at least at the point of the sleeve (5) formed on its outer surface (13) from a thermoplastic material, such as from plastic. 10. The method according to claim 1, wherein the first pipe section (2) is of a different material than a second pipe section (4). 11. The method according to claim 1, wherein the joint component (3) is formed from a number of pieces (3a, 3b).
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이 특허에 인용된 특허 (4)
Mer Zalman (Kfar Saba ILX) Lever Ernest (Kibbutz Maagan Michael ILX), Adaptor for use with electrofusion fittings.
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