| Popis: |
The metal powder-plate composite rolling, which combines the Monel 400 metal powder and 45# steel plate, is a novel method to prepare composite strips. By using a new high-rigidity two-high metallurgical powder 350mm test mill designed and developed independently, the composite sheet is achieved by the process of “cold rolling+sintering+hot rolling”. Then the cross-section of the rolled composite sheet is analyzed. The results show that 0.9mm Monel 400 powder and 4.3mm 45# steel plate can be successfully rolled into a 4.4mm composite sheet after 4 passes of cold rolling, sintering at 1200°C and hot rolling at 900°C with furnace cooling. The detection analysis shows that transition layer of the composite sheet has obvious element diffusion without interface. The bonding surface has changed from physical bonding to metallurgical bonding, and the combination is excellent. |
