PROSES DEKARBURISASI NICKEL PIG IRON

IF 0.6 Q4 METALLURGY & METALLURGICAL ENGINEERING Metalurgija Pub Date : 2018-01-23 DOI:10.14203/METALURGI.V29I2.287

Adil Jamali, Ra Binudi, B. Adjiantoro

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引用次数: 2

Abstract

DECARBURISATION PROCESS OF NICKEL PIG IRON. Nickel Pig Iron or NPI is ferronickel containing less than 15% nickel with sulfur and phosphorus levels higher than ferronickel. NPI is made from low-grade laterite nickel ore, Ni <1.8% which are widely available in Indonesia. The NPI is mainly use as a raw material for making stainless steel and nickel alloy steel. Nickel provides more value in the form of corrosion resistance, ductility, strength and improve weldability properties better than ordinary steel wihout containing of nickel. The aims of this research are to study decarburisation process of NPI with carbon content 3-4% to produce very low carbon laterite steel, C <0.03%. The method used was a laboratory-scale experiment for 200 kg of molten metal. The raw material is melted in electric induction furnace 500 kg capacity, then the liquid metal is poured into the converter. Furthermore, oxygen is blown to the surface of molten metal using a lance pipe coated with refractory materials. Decarburisation process was successfully conducted by blowing oxygen 160 kg / ton of molten metal within 24 minutes, producing very low carbon laterite steel where C = 0.01%.

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镍生铁申报流程

镍生铁脱碳工艺。镍生铁或NPI是指镍含量低于15%，硫和磷含量高于镍铁的镍铁。NPI由低品位红土镍矿制成，镍<1.8%，在印度尼西亚广泛可用。NPI主要用作制造不锈钢和镍合金钢的原材料。与不含镍的普通钢相比，镍在耐腐蚀性、延展性和强度方面提供了更多的价值，并更好地提高了焊接性能。本研究的目的是研究碳含量为3-4%的NPI脱碳过程，以生产C＜0.03%的极低碳红土钢。所用方法是对200kg熔融金属进行实验室规模的实验。原料在容量为500kg的感应电炉中熔化，然后将液态金属倒入转炉中。此外，使用涂有耐火材料的喷管将氧气吹送到熔融金属的表面。通过在24分钟内吹氧160公斤/吨熔融金属，成功地进行了脱碳工艺，生产出C=0.01%的极低碳红土钢。

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来源期刊

Metalurgija 工程技术-冶金工程

CiteScore

1.20

自引率

33.30%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal Metalurgija is primary scientific periodical that publishes scientific papers (original papers, preliminary notes, reviewed papers) as well as professional papers from the area of basic, applicable and developing researching in metallurgy and boundary metallurgy areas (physics, chemistry, mechanical engineering). These papers relate to processing ferrous and non-ferrous metallurgy, treating investigating as well as testing of raw materials, semi products and products, especially in the area of improving new materials and possibilities of their implementation. The journal is the only national periodical of this kind in the Republic of Croatia and covers the scientific field of metallurgy, especially: physical metallurgy and materials; process metailurgy, (ferrous and non-ferrous); mechanical metallurgy (processing, power , etc.); related (adjoing) branches: mechanlcal engineering, chemistry, physics etc.