熔炼

A nickel sulphide fire assay was applied to the pre-separation of the PGEs. The conditions of the NiS-FA procedure were carefully established.

详细研究了镍锍试金预富集流程的配方、熔炼、酸溶等条件，使得流程具有大于95％的化学回收率和10〓水平的空白值。

An optimizition method for copper flash smelting process based on the pattern decomposition is proposed, which describes operation parameters that need to be determined on line.

提出了基于模式分解的铜闪速熔炼操作模式智能优化方法，描述需要在线决策的操作参数。

The content value of hydrogen is high in aluminium melt of 25 t oil melting furnace .

t燃油熔铝炉熔炼的铝合金熔体中氢含量较高，配备ALPUR除气净化装置，通过合理使用，达到了满意的除氢效果，保证了铸锭的内部质量。

The scrap must be carefully selected to contain exactly the right ingredient before it is sent into the electric to be furnaced.

废钢在送进电弧炉熔炼前必须先经过仔细挑选，以保证其成分完全符合要求。

The furnace body's ф2200×1500 outer covering main body is made of 12mm steel plate,installed sensor in the lower part 45°of furnace body, the sensor is weight 2 ton induction iron cores made from top gear's W-151 the cold rolling 0.35m/m made by Wuhan Steel Silicon steel plate Factory, primary manufactured the water cooling coil from 10×10×2 copper pipe, and installed stainless steelwater cooling cover, the power Frequency Induction melting Furnace 's metal melting fluid namely the sensor sencondary loop, the entire electric furnace is a transformer actually, match a 6 grades self regulating transformer, shift gears by the electric tank control, the voltage may from low to high,divide 6 grade to rise to 380V, each grade of voltage is different, the output power is also different, the furnace temperature is also different along with different grade,so can suit smelting colored or black and so on different melting point metals, and may use as new furnace lining fireproof to smeltdiamantine drying furnace.

炉体由12mm钢板制成Ф2200×1500外壳主体，炉体下部45°安装有感应器，感应器由武钢硅钢片厂生产的最高档的W-151冷轧0.35m/m取向硅钢片制成重2吨感应铁心，初级由10×10×2铜管制成水冷线圈，并安装不锈钢水冷保护套，工频有芯熔炼炉的金属熔液即为感应器的次级线圈，整个电炉实际就是一个变压器，配套一台6档的自耦调压变压器，由电柜控制换档，电压可由低到高，分6级升到380V，每档电压不同，输出功率也不同，炉温也随档位不同而高低不同，以适应熔炼有色或黑色等熔点不同的金属，并可作新炉衬耐火冶金砂烘炉之用。

The high- copper slag was cleaned with reducing carbon reagent,sulphide iron oreand silica(SiO_2)in the electric furnace at 1250℃.

富氧熔炼高铜炉渣的贫化研究郭伟，杨怀东，江志清，曹正武摘要在1250℃，选用碳质还原剂、硫铁矿和SiO＿2对高铜炉渣进行电炉火法贫化。

Experts believe the project with the traditional lead-smelting technology, has the following characteristics: First, the smelting process to adopt internationally advanced level of oxygen blowing at the end of smelting - to restore the blast furnace method, the use of lead refining electrolysis ; Second, the use of sulfur dioxide gas double-absorption acid technology, the production of domestic water use of recycled water sewage treatment process; Third, the use of waste heat for power generation, waste to make full use of energy reduces energy consumption; Fourth, the high level of automation, low power consumption , Investment, raw materials adaptable, comprehensive recovery rate of high-quality products.

专家认为，该项目与传统炼铅工艺技术相比，具有以下特点：一是冶炼工艺采用具有国际先进水平的氧气底吹熔炼-鼓风炉还原法，铅精炼采用电解法；二是二氧化硫烟气采用两转两吸制酸工艺，生产生活用水采用循环水污水处理工艺；三是利用余热发电，充分利用废弃能源降低了能耗；四是自动化水平高、能耗低、投资省、对原材料适应性强、综合回收率高、产品质量好。

As an object of this study,LaNi_5 al- loys were prepared with the furnace on vairous technical parameters such as heating voltage,heating duration,material ingredient and so on.

并以LaNi＿5为主要研究对象，通过对加热电压、时间等熔炼工艺及原材料配比进行的研究，表明只有严格控制力。

In applications field, induction heating apply to melting, fully heating, heat treatment and jointing, and it is a important energy sources in many industries such as metallurgy, national defense, machine-driven industry.

在应用领域方面，感应加热可用于金属熔炼、透热、热处理和焊接等过程，已成为冶金、国防、机械加工等部门及船舶、飞机、汽车等制造业不可缺少的技术。

The last one, technological parameters should be adjusted strictly. In order to make the production line works, coordinately and stably, factors which affect the joint and match of the main equipment in the production line have been analyzed.

为使熔炼—连铸—斜轧生产线能够协调、稳定地生产，本文对影响生产线中主要设备间衔接与匹配的因素进行了讨论，得出了工艺参数间的匹配关系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失