高端FeV50合金生产工艺研究

Production Technology of Upscale FeV50 Alloy

结合电铝热法工艺,分析了Fe V50合金Al,P含量的影响因素,以及合金氧化面的成因,并研究确定了高端品Fe V50合金(合金w(Al)≤1.0%,w(P)<0.06%,外观无氧化面)的生产工艺技术参数。具体为:对于合金中P含量,应控制原料的铁屑w(P)≤0.7%,造渣剂w(P)<0.06%,五氧化二钒w(P)<0.015%;对于合金中Al含量,应使配铝系数控制在0.505~0.510;冶炼结束自然冷却36 h可避免合金表面产生氧化面。生产实践表明,执行上述工艺技术参数,可实现高端品Fe V50合金稳定生产,产品可满足用户使用需求。

Based on the electro-aluminothermic process for FeV50 alloy production,the influencing factors on Al and P content in FeV50 alloy and the causes of the oxidation surface of the alloy were analyzed.The technical parameters for production of upscale FeV50,with w( Al) ≤1.0%,w( P) <0.06% and without oxidation surface,were determined.For controlling the P content in the alloy,the P content in iron filings as the raw material,the slagging agent and vanadium pentoxide should be controlled ≤0. 7%,< 0.06% and <0. 015%,respectively. The aluminum addition coefficient of 0. 505 ~ 0. 510 is benificial to Al control in the alloy.A natural cooling of 36 h after smelting can avoid oxidation surface of the alloy.Production practice shows that the implementation of the above process parameters can achieve the stable production of upscale FeV50 alloy meeting the needs of users.