| 摘要 |
The joining pipe (3) has an inner layer (4) and outer layer (5) of meltable plastics with an intermediate layer of metal (6) such as aluminium or stainless steel. One end of the joining pipe is inserted into the fitting which surrounds same along a contact face (9) and has an inner layer (10) of plastics which can be melted to connect pipe and fitting together. The metal layer (6) on the end side (11) of the joining pipe inserted in the fitting is completely covered by a ring bead (12) of weldable plastics such as polyethylene or polypropylene which is formed as the joining pipe is inserted into the fitting. An independent claim is included for a method for producing a pipe join in sanitary and heating pipe systems where the fitting and joining pipe are heated in a connecting area so that the plastics of the outer layer of the joining pipe and inner layer of the fitting soften, the joining pipe is inserted into the fitting and fusion takes place. |
