| 摘要 |
The invention relates to a method for producing a welded connection between a first and a second component (1, 2), which components (1, 2) have in each case an inner side (8, 9), an outer side (6, 7) and an end side (10, 12) which connects said inner and outer sides, wherein the first component (1) is formed from a ferritic base body (13) which supports a plating (14) at the inside and whose end side (15) is provided with a buffer layer (16) made from an Ni-based alloy, and wherein the second component (2) is formed from an austenitic material. Said method has the following steps: a) the two components (1, 2) are arranged relative to one another such that their end sides (10, 12) between them enclose a weld groove (18), b) a root (25) which is made from an austenitic material and connects the plating (14) to the end side (12) of the second component (2) is welded in the weld groove (18), c) an intermediate layer (28) made from a nickel alloy having at least 90 % nickel is welded onto the root (25), which intermediate layer (28) is connected to the end side (24) of the plating (14) and the end side (12) of the second component (2), d) a weld seam (19) is then produced in the remaining weld groove (18) using a nickel-based welding filler material. |
