阐述了穿孔毛管产生同管壁厚差的原因，研究了穿孔和轧管工艺对钢管同管壁厚差的影响。
The causes producing wall thickness difference in a same pierced shell are expounded and the influences of piercing, rolling and mandrel drawing on the difference are studied.
通过有限元模拟针对斜轧穿孔过程中毛管的变形特点，对其壁厚不均进行了计算。
Addressing deformation characteristics of the shell during rotary piercing operation, wall thickness unevenness is calculated by means of the FE simulation method.
分析了热穿孔过程中毛管裂纹的产生及扩展机理。推荐了生产该钢种的合理工艺。
The rational process for producing the steel is recommended on the basis of analyzing the emergence and developing mechanism of cracks in shells of the steel during hot piercing.
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.
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.
应用推荐