套铣管的研制与开发
DEVELOPMENT OF FISHING-BOWL PIPE
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摘要: 以MnV钢及CrMo系钢种分别作为N80、X95级套铣管用钢,采用轧后余热直接淬火+回火的生产工艺,试制出综合力学性能良好的套铣管。介绍了N80级和X95级套铣管的主要技术要求、化学成分、生产工艺流程及力学性能。Abstract: As a result of a successful trial production, N80 and X95 fishing-bowl pipes with satisfactory comprehensive mechanical properties have been produced with MnV steel and CrMo steels and by means of the process of direct quenching & tempering. Also described here are such main aspects concerning the said pipes as technical specifications, chemical composition, process flow as well as mechanical properties.