大口径无缝钢管的工艺研究

随着国民经济的发展，使用大口径无缝管材的领域越来越宽广。文章介绍了天津钢管公司通过对热扩大口径无缝钢管来料，加热制度，推制速度，减壁量等工艺过程的研究，进一步掌握了热扩钢管的生产规律，为大口径钢管的生产奠定了基础。

Study on Technology of Heavy Calibre Seamless Tube

With the development of national economy,the field of using heavy caliber seamless tube is more and more extensive.Through study on the techonological process of materials,heating system,pushing speed and the less of wall thiehness for hot expanding heavy caliber seamless tube,the production rule of hot expanding tube has been grasped by Tianjin Pipe Co., Ltd, which to lay the foundation of production for heavy caliber tube.