Method for improving flanging of thin strip steel coil
A thin strip steel and flanging technology, applied in the configuration of indicating equipment/measuring equipment, manufacturing tools, special data processing applications, etc., can solve the problem of unstable edge thickness, edge flanging of steel coils, continuous casting of thin strips The thickness of the steel edge is thick, etc., to achieve the effect of solving the thicker thickness, improving the quality, and increasing the qualified rate
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Embodiment 1
[0039] During the steelmaking process, the hydrogen content H in molten steel is controlled to be 3.9ppm. The molten steel may include low-carbon molten steel, high-carbon molten steel, low-alloy molten steel, and high-alloy molten steel.
[0040] Before continuous casting of thin strip steel, the preheating time of various refractory materials is controlled to 203min. The refractory material can include tundish, transition bag, cloth spout, side sealing device.
[0041] The edge pressure of the crystallization roller takes the initial value F 0 Continuous casting of thin strip steel for 5KN.
[0042] Take the range where the edge L of the thin strip steel is 300mm as the thickness measurement area, and take a point at every width A of 15mm to measure the thickness. The thicknesses of 21 sampling points are measured as follows:
[0043] 1.721mm, 1.724mm, 1.776mm, 1.766mm, 1.746mm, 1.735mm, 1.728mm, 1.724mm, 1.721mm, 1.714mm, 1.717mm, 1.723mm, 1.727mm, 1.728mm, 1.728mm, 1.72...
Embodiment 2
[0052] During the steelmaking process, the hydrogen content H in the molten steel is controlled to be 4.3ppm. The molten steel may include low-carbon molten steel, high-carbon molten steel, low-alloy molten steel, and high-alloy molten steel.
[0053] Before continuous casting of thin strip steel, the preheating time for various refractory materials is 87 minutes. The refractory material can include tundish, transition bag, cloth spout, side sealing device.
[0054] The edge pressure of the crystallization roller takes the initial value F 0 Continuous casting of thin strip steel for 3.2KN.
[0055] Take the range where the edge L of the thin strip steel is 216mm as the thickness measurement area, and take a point at every width A of 18mm to measure the thickness. The thicknesses of 13 sampling points are measured as follows:
[0056] 1.718mm, 1.717mm, 1.714mm, 1.71mm, 1.706mm, 1.71mm, 1.715mm, 1.718mm, 1.723mm, 1.735mm, 1.758mm, 1.775mm, 1.729mm.
[0057] According to the ...
Embodiment 3
[0065] During the steelmaking process, the hydrogen content H in the molten steel is controlled to be 4.8ppm. The molten steel may include low-carbon molten steel, high-carbon molten steel, low-alloy molten steel, and high-alloy molten steel.
[0066] Before continuous casting of thin strip steel, the preheating time for various refractory materials is 327min. The refractory material can include tundish, transition bag, cloth spout, side sealing device.
[0067] The edge pressure of the crystallization roller takes the initial value F 0 Continuous casting of thin strip steel for 2KN.
[0068] Take the range where the edge L of the thin strip steel is 60 mm as the thickness measurement area, and take a point every 5 mm in width A to measure the thickness. The thicknesses of 13 sampling points are measured as follows:
[0069] 1.733mm, 1.747mm, 1.75mm, 1.749mm, 1.744mm, 1.741mm, 1.745mm, 1.749mm, 1.751mm, 1.752mm, 1.75mm, 1.748mm, 1.745mm.
[0070] According to the thickness...
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