空心管坯连铸技术被认为是管材生产更深层次的近终形制造技术。
Continuous casting of hollow tube is considered as a profound near net shape technology for pipe production.
结果表明：与传统连铸方法相比，施加电磁场后空心管坯的质量得到了明显的改善。
The results show that comparing with the conventional continuous cast one, the electromagnetic cast has obviously improved billet quality.
本文以制备优质空心管坯为目的，结合电磁加工技术的应用，研究了空心金属管坯的电磁连铸技术。
Aiming to produce high quality hollow tubes, electromagnetic continuous casting technology of hollow tube was studied by applying electromagnetic process technology.
探讨了浇注系统、浇注温度、牵引速度等工艺参数以及内结晶器的冷却腔结构和锥度等对空心管坯成形的影响规律。
The effects of technique parameters, cooling cavity structure and conicity of inner-mold on shaping of hollow tubes were discussed.
如何获得优质空心管坯使其能够满足在铸态下直接轧制的要求，是实现空心管坯连铸连轧，即管材近终形制造技术的关键。
To produce hollow tubes, which can satisfy the requirements of direct rolling in casting conditions, is the key to realize continuous casting-direct rolling of hollow tubes.
顶头是斜轧穿孔主要的变形工具之一，其作用是将实心管坯穿轧成一定壁厚的空心毛管。
Plug is one of the key deformation tools in cross piercing. Its function is turning a solid bar into a hollow bloom.
介绍了一种新的奥氏体不锈钢无缝管材制备工艺，即对空心铸坯直接热挤压制备荒管。
A new processing technique for seamless tubes manufacture of austenitic stainless steel is introduced, in which hollow cast blank is directly used for hot extrusion.
介绍了一种新的奥氏体不锈钢无缝管材制备工艺，即对空心铸坯直接热挤压制备荒管。
A new processing technique for seamless tubes manufacture of austenitic stainless steel is introduced in the present work, in which die casted hollow blank is directly used for a hot extrusion.
介绍了一种新的奥氏体不锈钢无缝管材制备工艺，即对空心铸坯直接热挤压制备荒管。
A new processing technique for seamless tubes manufacture of austenitic stainless steel is introduced in the present work, in which die casted hollow blank is directly used for a hot extrusion.
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