Steel continuous casting process for ultra supercritical high-pressure boiler tube
An ultra-supercritical boiler and high-pressure boiler technology, applied in the field of metallurgy, can solve the problems of restricting the development of the power industry, inability to weld, and large cracks in the center of the low-magnification center shrinkage hole, so as to reduce the uneven entry of liquid slag and prevent cooling. The effect of different speeds, reducing the degree of sag of the slab
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Embodiment 1
[0016] This embodiment is a continuous casting process for steel for ultra-supercritical high-pressure boiler tubes. The continuous casting adopts full protection pouring, and the ladle to the tundish adopts long nozzle argon seal protection pouring; ; Molten steel in the tundish is covered with a covering agent; the temperature of the tundish is continuously measured; the crystallizer liquid level is fully automatic liquid level detection technology is used in the continuous casting pouring process; the continuous casting casting speed is automatically controlled according to the superheat of the tundish; Cold automatic water distribution; stop electromagnetic stirring and dynamic soft reduction in the continuous casting process, that is, the production process does not use electromagnetic stirring and dynamic soft reduction of the crystallizer; use ultra-supercritical boiler tube steel special mold slag in the casting process, ultra-supercritical The physical and chemical pro...
Embodiment 2
[0022]This embodiment is a continuous casting process for steel for ultra-supercritical high-pressure boiler tubes. The continuous casting adopts full protection pouring, and the ladle to the tundish adopts long nozzle argon seal protection pouring; ; Molten steel in the tundish is covered with a covering agent; the temperature of the tundish is continuously measured; the crystallizer liquid level is fully automatic liquid level detection technology is used in the continuous casting pouring process; the continuous casting casting speed is automatically controlled according to the superheat of the tundish; Cold automatic water distribution; stop electromagnetic stirring and dynamic soft reduction in the continuous casting process, that is, the production process does not use electromagnetic stirring and dynamic soft reduction of the crystallizer; use ultra-supercritical boiler tube steel special mold slag in the casting process, ultra-supercritical The physical and chemical prop...
Embodiment 3
[0028] This embodiment is a continuous casting process for steel for ultra-supercritical high-pressure boiler tubes. The continuous casting adopts full protection pouring, and the ladle to the tundish adopts long nozzle argon seal protection pouring; ; Molten steel in the tundish is covered with a covering agent; the temperature of the tundish is continuously measured; the crystallizer liquid level is fully automatic liquid level detection technology is used in the continuous casting pouring process; the continuous casting casting speed is automatically controlled according to the superheat of the tundish; Cold automatic water distribution; stop electromagnetic stirring and dynamic soft reduction in the continuous casting process, that is, the production process does not use electromagnetic stirring and dynamic soft reduction of the crystallizer; use ultra-supercritical boiler tube steel special mold slag in the casting process, ultra-supercritical The physical and chemical pro...
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