摘要
图象分析仪测定的用四甲基氯化铵溶液电解萃取的热轧弹簧钢夹杂物尺寸分布表明 ,采用传统工艺生产弹簧钢时 ,钢材中存在大量大颗粒夹杂物 ;而通过合金化和控制二次精炼钢中的Alsol<2 0× 10 - 6的新工艺后 ,大颗粒夹杂物的数量和尺寸大幅度下降 ,材料的σ- 1 σb 值从 0 .45 1升高到 0 .46 8,提高了弹簧材料的疲劳寿命。
The size distribution of non\|metallic inclusions extracted harmlessly with quartermethyl ammonium chloride solution from hot rolled spring steel rods showed that there were a great quantity of large inclusions in spring steel rod produced by conventional process; but by the new process \| with alloying and controlling Al sol less than 20×10 -6 in secondary refining, the quantity and the dimension of large inclusions in spring steel rod dramatically decreased, the σ -1 /σ b value of material increased from 0.451 to 0.468 and the fatigue life of spring steel was enhanced.
出处
《特殊钢》
北大核心
2002年第1期1-6,共6页
Special Steel
基金
国家自然科学基金资助项目 批准号 :5 98740 2 3
