摘要
通过合理控制碳当量(≤0.42%),添加适量微合金元素Nb,采用低硫铁水、LF+RH双精炼工艺冶炼,连铸保护浇注,TMCP工艺轧制,正火处理,邯钢成功开发出E36-Z35高强船板。各项检测表明,船板具有较高的强度、良好的韧性、优良的抗层状撕裂能力和焊接性能,钢板NDT温度达-65℃,-40℃冲击功不低于34J,完全满足船级社规范要求。
Through controlling carbon equivalent （≤0.42%） reasonably, adding appropriate microalloy element Nb, adopting liquid iron with low sulfur content, LF＋RH refining processes, protection casting technology, TMCP process and normalizing treatment, Handan Steel developed E36-Z35 high strength ship plates successfully. The test results showed that the E36-Z35 hull plates have high strength, good toughness and excellent lamellar tearing resistant ability and welding performance, the NDT temperature achieved minus 65 ℃ by DWTT and the absorbed-in-fracture energy at minus 40 ℃was not less than 34 J, meeting the requirements of the rules of Classification Society fully.
出处
《山东冶金》
CAS
2011年第6期16-17,20,共3页
Shandong Metallurgy
关键词
高强船板
E36-Z35
微合金化
控制轧制
正火
high strength ship plate
E36-Z35
micro-alloying
controlled rolling
normalizing
