一种基于轻钙处理下的电炉钢冶炼方法

By controlling the flotation of Al2O3 inclusions through light calcium treatment, the problems of castability and product quality caused by excessive calcium treatment are solved, and the stable castability and high cleanliness of molten steel are achieved, ensuring stable and smooth production.

CN118653032BActive Publication Date: 2026-07-17SHANDONG IRON & STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG IRON & STEEL CO LTD
Filing Date
2024-07-16
Publication Date
2026-07-17
Patent Text Reader

Abstract

本发明涉及钢铁冶金技术领域,具体说是一种基于轻钙处理下的电炉钢冶炼方法。包括以下步骤:1)在电炉出钢见钢流时进行预脱氧;2)在出钢过程中加入石灰、合成渣和铝块;3)将钢水转运至LF精炼炉进行送电造渣和扩散脱氧;4)LF精炼炉冶炼完毕后进行扒渣操作,完毕后将钢水转运至VD炉冶炼,进行真空处理;5)在VD炉破空后喂入钙线进行轻钙处理,进行软吹氩。本发明要解决的技术问题是:提供一种基于轻钙处理下的电炉钢冶炼方法,使Al2O3夹杂物在精炼过程中尽可能上浮,VD处理后铝酸钙夹杂物明显减少,实现了VD后钢水中夹杂物的稳定控制,在保证钢水良好的可浇性的同时,提高了钢水的洁净度,稳定了产品质量。
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