| 摘要 |
A method for producing a test element (1) for use in non-destructive testing comprises the steps of making a hole (6) in a frame (2), of producing from a piece of metal a body (7) which is somewhat oversized but which corresponds to the shape of the hole (6), and of heating the frame (2) and/or chilling the body (7), whereupon the body (7) is inserted into the hole (6) in order to be, after temperature equalisation, fixedly and tightly joined to the frame (2), the body (7) comprising at least one detectable defect (3, 4). A test element (1), which is produced according to the method, has a frame (2) with a body (7) inserted therein. The body (7) is tightly fixed with a shrink fit in a hole (6) in the frame (2) and comprises a detectable defect (3, 4). |
