摘要
材料为18MND5钢的三代华龙一号核电反应堆蒸汽发生器用大锻件,要求比同种钢制造的二代加核电大锻件具有更好的力学性能。对三代华龙一号核电反应堆蒸汽发生器用18MND5钢上、下封头及筒体和管板大锻件进行了热处理实践。由于在材料化学成分控制、热处理工艺及装备等方面采取了有效措施,因此2015年以来,已生产三代华龙一号核电蒸气发生器主设备用18MND5钢大型锻件40余件,均为一次热处理合格,锻件力学性能良好且较均匀。现有的热处理技术及装备可确保稳定生产华龙一号蒸汽发生器用大型锻件。
Heavy forgings made of 18 MND5 steel for the third generation HPR1000 nuclear power reactor steam generator are required to has better mechanical properties than ones made from the same steel for the second generation nuclear power.Heat treatment practice for the upper and lower heads,cylinder and tube sheet forgings used for the third generation HPR1000 nuclear power reactor steam generator has been carried out.Because effective measures have been taken in controlling of material chemical composition,process and equipment of heat treatment,since 2015 more than 40 heavy forgings of 18 MND5 steel for the third generation HPR1000 nuclear power reactor steam generator were produced,and all of them were qualified at one time of heat treatment.The existing heat treatment technologies and equipment make it possible to ensures the stable production of large-sized forgings for the HPR1000 Steam Generator Nol.
作者
王晓芳
张智峰
雷雪
WANG Xiaofang;ZHANG Zhifeng;LEI Xue(Shanghai Electric SHMP Casting&Forging Co.,Ltd.,Shanghai 200245,China)
出处
《热处理》
CAS
2020年第5期36-41,45,共7页
Heat Treatment
关键词
18MND5钢
大锻件
化学成分
热处理工艺
热处理装备
18MND5 steel
heavy forging
chemical composition
heat treatment technology
heat treatment equipment
