Rolling points of packaging steel strip

①The packaged steel strip is rolled 5 times on the 650 rolling mill
　　②Medium and finish rolling:
　　 1 pass of neutral vertical rolling, 2 passes of medium flat rolling; 6 passes of finishing flat rolling and 2 passes of finishing vertical rolling to ensure the opening temperature of intermediate rolling.
　　 Micro-drawing and rolling between ZL and ZP1, guarantee the amount of sleeve between ZP1 and ZP2 to prevent drawing and rolling.
　　 Set the speed of each stand rolling mill, and adjust the speed between JP6 and 1# pinch roll.
　　 high pressure water descaling pressure: 6～8MPa
　　 to ensure the finishing temperature of finishing rolling.
　　③The steel belt will be left out after 48 hours of pile cooling.
　　④The width of the tropical zone is 165mm. In order to explore the influence of different specifications on the mechanical properties, two kinds of tropical zone thicknesses are selected, namely 2.75×165mm; 2.50×165mm, and passed different cold rolling reduction tests to verify the mechanical properties of the final blue ribbon. .