Abstract:
The present invention provides an isothermal processing method (101 ) for making an isothermal processed copper clad aluminum composite (55) comprising: providing an aluminum component (11 ) and a copper component (12); cleaning the aluminum component (11 ) and shape finishing the aluminum component (11 ); extruding the aluminum component (11 ) into a core aluminum billet (35); cleaning the copper component (12); transforming the copper component (12) into a copper cladding layer (44); cladding longitudinal and circumferential surface of the core aluminum billet (35) with the copper cladding layer (44) and molding the core aluminum billet (35) and the copper cladding layer (44) together to form a copper cladded aluminum billet (45); and transforming the copper cladded aluminum billet (45) into an isothermal processed copper cladded aluminum composite (55) through isothermal rolling and annealing. The present invention also provides an isothermal processed copper cladded aluminum composite (55) and a system (100) for manufacturing an isothermal processed copper cladded aluminum composite (55).
Abstract:
The invention relates to a process for producing cold-rollable steel strip consisting of the sequential steps: a) a thin slab 30 to 100 mm thick (solidification thickness) is produced from a steel melt by continuous casting; b) the thin slab produced by step a) is descaled; c) the descaled thin slab is hot-rolled at temperatures in the region of 1150 to 900 DEG C to reduce its thickness by at least 50 % to provide an intermediate strip with a maximum thickness of 20 mm; d) the semi-finished strip is cooled quickly after hot-rolling; e) the cooled semi-finished strip is isothermally rolled at 850 to 600 DEG C on a finishing train with at least three stands into strips with a maximum thickness of 2 mm; f) the isothermally rolled steel strip is then fast-cooled to a temperature of 100 DEG C at the most and preferably coiled up as the finished strip. The invention also relates to a device for implementing the process.