摘要
采用EAF+AOD+ESR法研制了有特殊要求的OCr18Ni10Ti大锻件33件。单件最重8.3t,最大管板Φ1850mm×260mm(5.5t),是目前最大的含Ti不锈钢锻件。所有产品一次验收合格。本文着重讨论了Ti含量控制及含Ti钢的均匀性、纯净度、晶粒度、α相和高温力学性能等问题。
33 heavy forgings with special requirements were manufactured of steel 0Cr18Ni10Ti by EAF + AOD+ESR process,of which,the heaviest one is 8. 3t,the largest tube plate is φ1850mm×260mm (5. 5t). They are the largest forgings of containing Ti stainless steel to the present. All products are up to the Standard once only. In this paper,it were discussed emphatically on the control of Ti and its homogene-ity ,cleanliness,grain refinement,α - phase,high - temperature mechanical properties,etc.
出处
《大型铸锻件》
2002年第3期1-4,12,共5页
Heavy Casting and Forging
