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介绍了ASMESA -213T2钢内螺纹管冷拔生产工艺对内螺纹管形状尺寸的影响和不同热处理规范对钢的持久强度的影响。试验结果表明 ,冷拔减壁量与内螺纹高度成正比 ;不同热处理规范对T2钢的持久强度影响不明显
The effect of cold drawing process of ASMESA -213T2 steel internally threaded pipe on the shape and size of the female pipe and the influence of different heat treatment rules on the long-term strength of the steel are introduced. The test results show that the amount of cold drawn reduction is directly proportional to the height of the internal thread. The effect of different heat treatment rules on the lasting strength of T2 steel is not obvious