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金属学报  1977, Vol. 13 Issue (z1): 109-172    
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高碳铬轴承钢钢锭解剖
No Author
大冶钢厂钢铁研究所
AN INVESTIGATION OF CERTAIN HIGH CARBON CHROMIUM BEARING STEEL INGOTS
Research Institute of Tayeh Steel Works
引用本文:

No Author. 高碳铬轴承钢钢锭解剖[J]. 金属学报, 1977, 13(z1): 109-172.
. AN INVESTIGATION OF CERTAIN HIGH CARBON CHROMIUM BEARING STEEL INGOTS[J]. Acta Metall Sin, 1977, 13(z1): 109-172.

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摘要: 解剖了九个按不同冶炼铸锭工艺方法生产的高碳铬轴承钢锭,通过宏观观察、化学分析以及非金属夹杂物和碳化物的测定,得到了化学成分和气体含量在锭中的分布、非金属夹杂物和碳化物的类型、含量和分布以及枝晶间化学成分的偏析。从而得出经电渣炉重熔用水冷结晶器铸锭方法生产的钢锭,优于用一般铸锭法的钢锭;小型锭或扁型锭比大型锭或方型锭为好;采用高温扩散退火处理对改善钢锭的铸态组织有显著效果;而真空冶炼铸锭工艺则是提高轴承钢锭质量的又一有效途径。
Abstract:Nine high carbon chromium bearing steel ingots melted and teemed bydifferent processes have been sectioned longitudinally and their macrostructureincluding distribution of non-metallic inclusions and carbides as well as gascontent, etc. have been examined. Ingots made by electroslage refining and so-lidifying in water cooling crystallizer showed better quality than those made bythe conventional process, especially for slabs or ingots with smaller cross-sections. High temperature diffusion annealing treatments promote the refinementof the macrostructure of ingots. Vacuum melting and teeming are very effectivefor the improvement of the quality of ingots.
    
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