Production Technology of Upscale FeV50 Alloy

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.