Controlling Inclusion Composition in Steelmaking Process for Tire Cord Steel
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摘要: 通過熱力學計算分析了生產簾線鋼生產工藝中生產條件對鋼中夾雜物成分的影響.從控制夾雜物成分的角度,提出了采用不含鋁的Si-Mn合金進行脫氧,控制酸溶鋁的含量在1×10~6-5×10-6(質量分數)范圍內,不采用鋁質包襯的鋼包,提高VD真空度在300Pa以上,取消喂Si-Ca絲等建議.Abstract: The effect of various process factors for producing tire cord steel on inclusion composition was discussed by thermodynamic calculations. Some advice was proposed for controlling inclusion composition, which includes deoxidization with the Si-Mn alloy without aluminum, dissolved aluminum controlled within 1×10-6~5×10-6 in mass fraction, using ladle lining without alumina, creasing vacuum degree over 300 Pa and canceling feed Si-Ca line.
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Key words:
- thermodynamic calculation /
- Inclusion /
- slag /
- deoxidization /
- tire cord steel
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