| abstract |
CLAIMS What is claimed is: 1. A method of generating tracing information for solid objects made of metal, synthetic or natural materials, comprising the steps of providing a non-refining piece (3), forming a non-refining piece (3) to pass through a plurality of conversion steps (5, 6, 7, 8, 9, 11, 14, 17, 18, 22) (7, 8, 9, 11, 14, 17, 22) for changing the shape of one or more heat treatment steps (5, 6) and / At least one of the plurality of conversion steps (5, 6, 7, 8, 9, 11, 14, 17, 18, 22), the unfixed piece (3) or the solid object , The method comprising the steps of: before the step of transforming, the method comprising the steps of: , Providing a permanent individual marking (19) to said untrimmed piece (3), said permanent individual marking (19) comprising a single identification code (20) of said untrimmed piece (3) Characterized in that it comprises an encoding field (39) with an area of the bath-relief (42) in the refining piece (3), and which permanently identifies a single unmodified piece (3) and a single solid object The method comprising the steps of providing a separate marking 19, reading the individual markings 19 applied to the non-tablet piece 3, and storing the read identification code 20 in a database 21. |