控制好无缝异型钢管钢水过热度，确定合适的拉速制度，防止温度过高、拉速过快造成的坯壳过薄。尽量控制钢中碳含量避开包晶反应区，向上限或下限控制。根据无缝异型钢管钢种特性选用合适的保护渣，适当提高结晶器保护渣黏度，提高保护渣传热均匀性，保护渣加入时坚持勤加少加原则。监测振动平稳性，保证振动横向偏摆不大于0.2mm，纵向偏摆不大于0.4mm。
The superheat of molten steel of seamless special-shaped steel pipe should be controlled well, and the suitable drawing speed system should be determined to prevent the shell from being too thin due to excessive temperature and speed. Carbon content in steel should be controlled as far as possible to avoid peritectic reaction zone and upper or lower limits. According to the characteristics of seamless special-shaped steel pipe, proper mould flux is selected, the viscosity of mould flux is properly increased, the heat transfer uniformity of mould flux is improved, and the principle of adding mould flux diligently and less is adhered to. Vibration stability is monitored to ensure that the lateral and longitudinal deviations of the vibration are not greater than 0.2 mm and 0.4 mm respectively. 为预防大面偏离角的严重凹陷，应做好扇形段液压系统的维护、点检，防止液压失压或扇形段抬起。提高扇形段夹辊质量并做好日常点检，防止夹辊断裂，偏离角部位出现严重凹陷后应立即停机，避免损失过大。停机后处理液压系统故障或更换扇形段。严格水口装配，保证水口对中良好，防止偏流，保证无缝异型钢管均匀凝固。
In order to prevent the serious depression of large deviation angle, the maintenance and spot inspection of hydraulic system in sector section should be done well to prevent hydraulic pressure loss or sector section lifting. Improving the quality of the clamp rollers in sector section and doing routine spot checks to prevent the breakage of the clamp rollers, and stopping the machine immediately after serious depression occurs in the deviation angle part, so as to avoid excessive losses. After shutdown, the hydraulic system fails or the sector section is replaced. Strict nozzle assembly ensures good nozzle alignment, prevents deviation, and ensures uniform solidification of seamless special-shaped steel tubes.
保证结晶器水缝均匀，提高结晶器材质，防止结晶器磨损严重及镀层脱落，结晶器实施弱冷冷却，合理控制冷却强度。提高扇形段顺弧精度，尤其是结晶器与零段，发现零段夹辊弯曲严重及时进行更换。适当增加窄面足辊与铸坯的接触程度，防止无缝异型钢管鼓肚，但足辊不应调整过硬，否则可能造成拉坯阻力大。
To ensure the uniformity of the water gap in the mould, to improve the quality of the crystallizer, to prevent the serious wear of the mould and the falling off of the coating, to implement weak cooling in the mould, and to control the cooling intensity reasonably. To improve the arc alignment accuracy of sector section, especially the mould and zero section, it is found that the zero section clamp roll is seriously bent and replaced in time. The contact degree between narrow foot roll and billet should be increased properly to prevent bulging of seamless special-shaped steel pipe, but the foot roll should not be adjusted too hard, otherwise the resistance of billet drawing may be large.
