Method for rolling precise stainless-steel ultrathin steel belt
A technology of stainless steel and steel strip, applied in the direction of metal rolling, can solve the problems of large thickness tolerance fluctuation and poor shape, and achieve the effect of improving product quality, small fluctuation of product thickness tolerance, and solving the effect of poor shape
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Embodiment 1
[0017] 304 cold-rolled stainless steel coils with a thickness of 0.3mm and a width of 610mm are selected as raw materials, and the thickness of the finished ultra-thin steel strip after cold rolling is 0.05mm.
[0018] First, the stainless steel cold-rolled coil raw material with a thickness of 0.3mm is rolled by a SUNDWIG four-column twenty-high rolling mill. During the rolling, the British BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. Multi-pass, The method of lowering the reduction rate, after 7 passes of cold rolling to 0.1mm, the rolling speed of the first pass is 80m / min, the surface roughness of the work roll is Ra0.25um, and the rolling speed of the middle pass is 300m / min , The rolling speed of the finished product pass is 200m / min.
[0019] After cold rolling, the steel coil passes through a vertical continuous bright annealing furnace at a temperature of 1130°C±5°C at a speed of 50m / min for solution treatment, and us...
Embodiment 2
[0027] The 301B cold-rolled stainless steel coil with a thickness of 0.3mm and a width of 610mm is selected as the raw material, and the thickness of the finished ultra-thin steel strip after cold rolling is 0.05mm.
[0028] First, the stainless steel cold-rolled coil raw material with a thickness of 0.3mm is rolled by a SUNDWIG four-column twenty-high rolling mill. During the rolling, the British BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. Multi-pass, The method of lowering the reduction rate, after 8 passes of cold rolling to 0.1mm, the rolling speed of the first pass is 80m / min, the surface roughness of the work roll is Ra0.25um, and the rolling speed of the middle pass is 300m / min , The rolling speed of the finished product pass is 200m / min.
[0029] After cold rolling, the steel coils pass through a vertical continuous bright annealing furnace at a temperature of 1140°C±5°C at a speed of 55m / min for solution treatment, a...
Embodiment 3
[0037] The 301B cold-rolled stainless steel coil with a thickness of 0.4mm and a width of 610mm is selected as the raw material, and the thickness of the finished ultra-thin steel strip after cold rolling is 0.08mm.
[0038] First, the stainless steel cold-rolled coil raw material with a thickness of 0.4mm is rolled by a SUNDWIG four-column 20-high rolling mill. During the rolling, the British BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. The method of lowering the reduction rate, after 7 passes of cold rolling to 0.15mm, the rolling speed of the first pass is 80m / min, the surface roughness of the work roll is Ra0.20um, and the rolling speed of the middle pass is 300m / min , The rolling speed of the finished product pass is 200m / min.
[0039] After cold rolling, the steel coil passes through a vertical continuous bright annealing furnace at a temperature of 1130°C±5°C at a speed of 50m / min for solution treatment, and uses high-p...
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