研究了退火方式对N36错合金包壳管再结晶程度、力学性能、收缩系数(CSR)、椭圆度以及腐蚀性能的影响。结果表明,在同一退火制度下,采用套管与不采用套管退火相比,管材再结晶程度、强度、CSR性能及短期腐蚀性能没有明显差异,伸长率有所下降;采用套管退火的管材椭圆度没有明显变化,而未采用套管进行退火的管材椭圆度增加明显。 The effect of annealing method on the degree of recrystallization, mechanical properties, shrinkage coefficient (CSR), ovality and corrosion properties of N36 alloyed shell was investigated. The results show that under the same annealing system, the degree of recrystallization, the strength, the CSR performance and the short-term corrosion performance of the pipe are not significantly different, but the elongation is decreased compared with the case without the casing annealing. There is no obvious change in the ovality of the pipe, but the ovality of the pipe without annealing is obviously increased.