提高H13钢VD过程脱氮率的工艺研究  

Study on Increasing the Denitrification Rate in the VD Process of H13 Steel

作　　者：王建 Wang Jian(Panggang Group,Jiangyou,Sichuan Province 621700)

机构地区：[1]攀钢集团四川江油长城特殊钢有限公司,四川江油621701

出　　处：《特钢技术》2018年第3期37-40,48,共5页Special Steel Technology

摘　　要：本文研究了H13钢VD真空过程脱氮率的影响因素,通过保证最低真空度≤20Pa、真空度≤33Pa的有效真空时间≥20min、提高钢液入VD前的温度及保证有效真空时氩气流量等措施能显著提高H13钢的脱氮率。In this paper,the influence factors on the denitrification rate in the VD process of H13 steel was studied.he denitrification rate of H13 steel is obviously increased by these approaches of ensuring the effective vacuum treating time at the vacuum level of less than 33Pa for more than 20 minutes with the ultimate level of less than 20Pa,of raising the temperature of liquid steel before VD and of ensuring the flow of argon in the effective vacuum treatment.

关 键 词：H13钢 VD真空处理 氮含量 脱氮率 

分 类 号：TG142.45[一般工业技术—材料科学与工程]