Method for controlling nodulation of carbon blind hearth roller
A hearth roll and nodulation technology, which is applied in the field of steel rolling, can solve the problems of reducing the service life of the online carbon sleeve hearth roll, increasing energy and medium consumption, and affecting the lamination coefficient of the steel plate, so as to reduce unit downtime accidents and grinding The number of rolls, ensuring normal input and stable operation, and reducing the effect of bringing in and producing
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Embodiment 1
[0023] 1. The transition steel coil runs at a speed of 60 m / min in the high-temperature furnace to reduce the oxidation degree of the steel coil surface when it enters the furnace next time.
[0024] 2. The surface of the transition steel coil is seriously oxidized, that is, the surface of the strip steel has been seriously blue and black or the number of operations has reached 15 times, so as to reduce the amount of oxidized iron scale.
[0025] 3. Control the oil content and iron content of alkali washing lye, the oil content of alkali spraying lye is controlled at 7800 mg / l, the iron content is controlled at 550 mg / l; the oil content of alkali brushing lye is controlled at 3400 mg / l, iron The content of oil is controlled at 180 mg / l to ensure the normal operation of the alkali cleaning equipment, improve the surface quality of the strip steel when it is out of the alkali cleaning, and avoid bringing oil and iron into the furnace.
[0026] 4. According to the temperature...
Embodiment 2
[0036] 1. The transition steel coil runs at a speed of 70 m / min in the high-temperature furnace to reduce the oxidation degree of the steel coil surface when it enters the furnace next time.
[0037] 2. The surface of the transition steel coil is seriously oxidized, that is, the surface of the strip steel has been seriously blue and black or the number of operations has reached 15 times, so as to reduce the amount of oxidized iron scale.
[0038] 3. Control the oil content and iron content of alkali washing lye, the oil content of alkali spraying lye is controlled at 7400 mg / l, the iron content is controlled at 590 mg / l; the oil content of alkali brushing lye is controlled at 3950 mg / l, iron The oil content is controlled at 160 mg / l to ensure the normal operation of the alkali cleaning equipment, improve the surface quality of the strip steel when it is out of the alkali cleaning, and avoid bringing oil and iron into the furnace.
[0039] 4. According to the temperature of...
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