One, control the carbon content in steel as much as possible to avoid the peritectic reaction zone, aiming for the upper or lower limit.
2. According toSelect appropriate protective slag based on the steel grade characteristics, moderately increase the viscosity of the crystallizer protective slag, enhance the uniformity of heat transfer in the slag, and adhere to the principle of frequent but small additions when adding the slag.
Three, monitor vibration stability to ensure that the lateral swing does not exceed 0.2mm and the longitudinal swing does not exceed 0.4mm.
Four, control the superheat of the steel billet in the deformed tube, determine an appropriate drawing speed system, and prevent the billet shell from being too thin due to excessive temperature and drawing speed.
Five, to prevent severe concave deformation due to large deviation angles, proper maintenance and inspection of the hydraulic system in the sector segment should be conducted to prevent hydraulic pressure loss or lifting of the sector segment. Improve the quality of the sector segment clamping roller and conduct daily inspections to prevent roller breakage. In case of severe concave deformation at the deviation angle, immediately shut down the machine to avoid excessive losses. After shutdown, address hydraulic system issues or replace the sector segment.
Six. Strictly assemble the water gap to ensure good alignment, prevent misflow, and ensure uniform solidification of the non-standard pipe.
Seven, Ensure uniform water gap in the crystallizer, enhance the crystallizer material, prevent severe wear and coating peeling, implement weak cooling for the crystallizer, and control the cooling intensity reasonably.
Section 8: Improve the accuracy of the arc segments in the sector, particularly for the crystallizer and zero segment. Discover severe bending of the zero segment roller and replace it promptly.
Nine, increase the contact between the narrow face roller and the casting billet to prevent the abnormal pipe from swelling, but the roller should not be adjusted too tightly; otherwise, it may cause excessive drawing resistance.
