精炼炉

So, using magnesia and calcia crucible in VIF respectively, the experiments on deep deoxidation by carbon and the phenomenon of oxygen contamination from crucible materials in the molten steel under some temperature and vacuity and oxygen content of the molten steel were made and it were found that properly low melting temperature and vacuity helped to lighten and even avoid oxygen contamination from crucible material and the refining effect of final oxygen content of 5×10-4% in the molten steel was achieved using calcia crucible with better resistance to thermal shock under higher vacuity.

为此，分别采用MgO炉衬与CaO炉衬，在真空感应炉中对钢液用碳进行深脱氧和炉衬供氧现象实验研究，发现：(1)在适当低的熔炼温度和真空度下，可以减轻甚至避免炉衬热分解向钢液供氧；(2)采用热稳定性优越的CaO炉衬，在较高的真空度下可达到钢液最终全氧含量低于5×10-4%的精炼效果。

Was founded in 1989 and the introduction of Italian spectrometer, the United States NITON spectrometer, Switzerland ARL Direct Reading Spectrometer and other advanced equipment, the use of AOD refining furnace, equipped with a group of 500 mill, 320 mill a group, subordinates have smelting sub - plants, plant cold-drawn, hot-rolling plant, cold steel plant, such as precision, professional production and operation of stainless steel ingots, stainless steel round bar, stainless steel wire, stainless steel forgings, flanges and angle steel, flat steel, square steel, trough various stainless steel products, and custom special material cold-rolled plates and hot-rolled plate small.

江苏省江阴市兴业不锈钢有限公司成立于1989年，引进意大利光谱仪、美国NITON光谱仪、瑞士ARL直读光谱仪等先进设备，采用AOD精炼炉、配备500轧机一组、320轧机一组，下属有冶炼分厂、冷拉分厂、热轧分厂、冷精型钢分厂等，专业生产经营不锈钢锭、不锈圆钢、不锈丝、不锈锻件、法兰及角钢、扁钢、方钢、槽钢等各种不锈钢系列产品，并可定制特殊材质的冷轧板和热轧小中板。

The unfired magnesia-calcium brick has been developed and used in 90t LF refining furnace in centain steelplant.

以合成镁钙砂、电熔镁砂为原料，以无水树脂做结合剂，添加适量的添加剂，研制出了LF 精炼炉用不烧镁钙砖。

The experiment and application of magnesia calcia-carbon fireproof bricks in 25gLF refinement ladle is introduced.

介绍了镁钙碳砖在25tLF精炼炉钢包上的试验及使用情况。

Based on the coupling numerical solving method, the velocity distribution and flow behavior of Ar in a ladle furnace lid was calculated and analyzed by numerical simulation.

采用耦合数值求解的方法，计算并分析了LF精炼炉盖内气体流动的速度分布状态以及液面附近惰性气体氩的流动行为和分布。

Based on the coupling numerical solving method, the velocity distribution and flow behavior of Ar in a ladle furnace lid was calculated and analyzed by numerical simulation.

采用耦合数值求解的方法，计算并分析了LF精炼炉盖内气体流动的速度分布状态以及液面附近惰性气体氢的流动行为和分布。

The paper has studied systematically fluid flow behaviors in argon blowing process in ladle furnace and told more suitable position and quantity for blowing argon by means of water model and mathematical simulation, according to the Ladle Furnace of Shi Jiazhuang Iron and Steel Corporation. And it optimized the ladle construction and fluid flow behaviors, so it provided the molten steel with perfect temperature and composition.

本文针对石家庄钢铁有限公司LF-钢包精炼炉，利用水模型和数学模型模拟，系统研究了LF吹氩过程中钢液的流动行为，确定了最佳的钢包吹氩位置以及适宜的吹氩气量，改善了钢包结构，优化了钢液流动状态，为连铸工序提供具有理想温度和成分的钢水奠定了技术基础。

With 54# half-refined paraffin as raw material,the technology of the second injecting steam of ethane cracking is used for reference in the paraffin cracking process which avoides the coke produced in cracking furnace.

采用优质的54#半精炼石蜡，将乙烯裂解二次注汽技术融合在石蜡裂解技术中，避免了裂解炉结焦；考察了单程裂解、炉前甩残蜡循环裂解、炉后甩残蜡循环裂解在相同的工艺条件下的产品质量、产品收率及存在的问题；验证了新的炉后甩残蜡循环裂解是较好的工艺路线，在较高的水蜡比15%，高温600℃、低烃分压和短停留时间(2s左右)条件下，能生产出高质量的α-烯烃产品(总烯烃质量分数在97%以上，α-烯烃含量为88%)。

Top Glory Farm Machinery Parts Factory We are the powder metallurgy market analysts pointed out: as a result of improved slagging agents and ladle refining furnace mode, all steel can not refine the use of fluorite, the results achieved in the secondary refining slag fluoride fluorine content and dissolution of the refining technology zero.

我们鹏利农机配件厂的粉末冶金市场分析师指出：由于改进了造渣剂和钢包炉的精炼方式，因此所有钢种都能不使用萤石进行精炼，结果实现了二次精炼渣中的氟含量和氟溶出量为零的精炼技术。

This new refining process is termed "ladle-refining" or "secondary steelmaking". It is discussed in three parts: The development of various ladle-refining process including vacuum refining and normal pressure refining such as synthetic slag treatment, argon stirring, vacuum degassing VC, SLD,...

本文分三个方面进行讨论：(1)各种炉外精炼法的发展，包括真空精炼和常压精炼，例如合成渣洗、吹氩搅拌(Gazal、CAB、SAB法)、真空脱气(VC、SLD、TD、TD-VC、TD-SLD、RH、DH、FinKl和Gazid法)、带电弧加热的炉外精炼(ASEA-SKF、FinKl-VAD和LF法)、喷射冶金以及不锈钢的精炼法(AOD、CLU、VOD、SS-VOD、KVOD/VAD、RH-OB和VODC法)，(2)我国炉外精炼技术的现状，(3)发展炉外精炼必须注意的一些问题。

He knows that he's one of the mostdominant players in the NBA right now.

我知道他现在是联盟里最有统治力的球员之一了。

Using analysis method of BCG , the dissertation analyzed the management of voluntary service organizations .

利用BCG分析方法对我国的志愿服务组织管理进行了分析。