无缝钢管的生产流程由很多独特的流程组成,主要可归纳为四大主要步骤:钢坯穿刺、连轧、定径、成型。在整个的生产流程中,心轴作为一个工具扮演了重要的角色。首先,心轴可以支撑钢管通过轧机;第二,心轴控制着钢管的水平移动;第三,心轴可以固定钢管的内径以及准确的钢管厚度;最后,心轴能够控制钢管内表面的质量。所有这些过程要在苛刻的温度和压 Seamless steel pipe production process by a number of unique processes, can be grouped into four main steps: billet puncturing, rolling, sizing, forming. The spindle plays an important role as a tool throughout the production process. Firstly, the mandrel can support the steel pipe through the rolling mill. Secondly, the mandrel controls the horizontal movement of the steel pipe. Third, the mandrel can fix the inner diameter of the steel pipe and the accurate pipe thickness. Finally, the mandrel can control the quality of the inner surface of the steel pipe. All of these processes are to be performed at harsh temperatures and pressures