• The production status of rail steel and smelting technology of heavy-rail steel in China are summarized.

    本文对我国钢轨生产情况及重钢的冶炼技术做了综合论述。

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  • The hydrogen content in the molten heavy rail steel was measured in every stages from LD tapping to mould(without the VD refining process).

    研究了包钢转炉出钢结晶各个工序过程(未经VD真空处理)钢液含量变化。

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  • When the content of RE addition is 0.01%, the grain size of austenite can be obviously fined, and the impacting toughness of heavy rail steel can be obviously improved.

    稀土加入0.01%时,奥氏体晶粒尺寸明显细化冲击显著改善。

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  • According to smelting condition of Baotou iron and steel group, VD refining process should be adopted to reduce the hydrogen content in the heavy rail steel.

    根据包钢冶炼条件采用VD真空处理降低钢液含量是完全必要的。

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  • During the high rate heavy rail steel smelting, the upper basicity slag can be used during the LF refining, but it reduces suitable basicity of slag and refining time during the RH refining.

    高速冶炼可以LF精炼过程采用较高炉渣碱度RH精炼过程中,应适当降低炉渣碱度减少精炼时间

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  • Via vacuum induction furnace and metallographical analysis, the effects of RE on the grain size of the austenite and distance of the pearlite laminae of high-carbon steel for heavy rail were studied.

    通过真空感应模拟实验,结合金相分析,研究稀土对于氏体晶粒尺寸珠光体片间距影响作用。

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  • The key technologies, such as M-EMS, secondary cooling scheme, and dynamic soft reduction, and its application to bloom continuous casting for heavy rail steel were presented.

    简述攀钢大方连铸结晶器电磁搅拌技术冷控制技术凝固末端动态下技术连铸中的应用效果。

    youdao

  • The key technologies, such as M-EMS, secondary cooling scheme, dynamic soft reduction, and its application to bloom continuous casting for heavy rail steel were presented.

    简述攀钢大方连铸结晶器电磁搅拌技术冷控制技术凝固末端动态下技术连铸中的应用效果。

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  • The corrosion resistance of the heavy rail steel as well as the strength and toughness, is a matter of major issues concerning railway operation efficiency and security.

    腐蚀性能同强度韧性一样事关铁路运营效益和安全等重大问题

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  • A new submerged entry nozzle (SEN) with four outlets was used for casting heavy rail steel.

    针对攀钢大方连铸结晶器,采用孔水口浇注重钢。

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  • A bloom continuous Casting machine main cast quality steel and alloy steel, such as heavy rail steel, hard-line steel, spring steel, bearing steel, alloy structural steel, and other key species.

    大方连铸机主要浇铸优质合金钢钢、硬线钢、弹簧钢轴承钢、合金结构钢重点品种。

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  • A mathematic model to predict the mechanical properties of heavy rail steel has been developed by means of neural network according to the demand of production.

    采用神经网络方法建立了重生产性能预报模型,并通过模型结构优化提高了模型预报可靠性。

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  • A mathematic model to predict the mechanical properties of heavy rail steel has been developed by means of neural network according to the demand of production.

    采用神经网络方法建立了重生产性能预报模型,并通过模型结构优化提高了模型预报可靠性。

    youdao

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