钒铁,ferrovanadium
1)ferrovanadium[,fer?v?'neidi?m]钒铁
1.The mainly preparation of ferrovanadium is aluminothermic reduction currently.钒铁是生产工具钢、耐热钢的一种重要中间合金,目前主要采用铝热法生产。
2.An ICP AES method for the determination of Cu,Si,Al,P,Cr,Ni,Mn,W in ferrovanadium has been established, based on the selection of proper wavelength and background correction.叙述采用等离子发射光谱法同时测定钒铁中的铜、硅、铝、磷、铬、镍、钨、锰等微量元素 ,试样用稀王水分解 ,选择适当的波长与背景校正进行分析测定 ,方法回收率在 95%~ 1 0 5%之间 ,相对标准偏差均小于 4% ,本方法快速准确 ,精密度良好。
3.To promote development of low alloy steel bearing vanadium and mitrogen,the process,conditions and products of preparing nitrided ferrovanadium and vanadium nitride are introduced on the basis of main documents.为推动含钒氮低合金钢的发展 ,在查阅主要文献的基础上 ,重点介绍了氮化钒铁及氮化钒制备的工艺方法、条件及产品情况。
英文短句/例句

1.Study on Oxidation of Vanadium in Molten Iron and Formation of Vanadium-Iron Spinels铁水中钒氧化及钒铁尖晶石形成的研究
2.Methods for chemical analysis of ferrovanadium--The potentiometric method for the determination of vanadium contentGB/T8704.5-1994钒铁化学分析方法电位滴定法测定钒量
3.Experimental Study and Correction of the Absorption and Enhancement Effect between Ti,V and Fe钛钒铁间吸收增强效应研究及其校正
4.Semi-Industrial Experiment on the Pretreatment of Molten Pig Iron by Top-Blowing Oxygen and TopAdding Sodium Carbonate碳酸钠吹氧法预处理含钒铁水半工业实验
5.Analysis of vanadium distribution regularity in Panzhihua Vanadium-titanium Magnetite Mine浅析攀枝花钒钛磁铁矿钒的分布规律
6.Iron-cobalt-vanadium permanent-magnet alloysGB/T14989-1994铁钴钒永磁合金
7.Fast Determination of Vanadium in Vanadium-nitrogen-iron Alloy by Ammonium Ferrous Sulfate Titrimetric Method硫酸亚铁铵滴定法快速测定钒氮铁合金中的钒
8.Prioritize in development of vanadium products for iron and steel industries and proactively develop other high-tech vanadium products.钒产业以钢铁行业用钒制品为重点,积极开发其他高新钒制品。
9.Determination of Vanadium by FIA with V(Ⅴ)-Fe (CN)_6~(4-)-Luminol Chemiluminescence System钒(Ⅴ)-亚铁氰化钾-鲁米诺化学发光体系测定钒
10.Technology of Extraction and Kinetics of Leaching Vanadium from Vanadium Titanium Magnetite Tailings钒钛磁铁矿尾矿中钒的提取工艺和动力学研究
11.A Test Study on Cr24VTi High-chromium Cast Iron Grinding Ball含钒钛24%铬高铬铸铁磨球试验研究
12.Experimental Research on the for Iron Concentration Technology for a Low Grade Vanadiferous Titanomagnetite Ore with High Phosphorus某低品位高磷钒钛磁铁矿选铁试验研究
13.Experimental Research on Recovering Titanium from the Tailings of Separating Iron of a Low-grade Titanomagnetite Ore某低品位钒钛磁铁矿选铁尾矿选钛试验研究
14.Experimental Study on Comprehensive Recovery of Iron,Titanium and Phosphorus from the Super-poor Vanadium-titanium Magnetite超贫钒钛磁铁矿综合回收铁钛磷试验研究
15.Vanadium--Determination of vanadium content--Potassium permanganate-ammonium ferrous sulphate volumetric methodGB/T8639.1-1988钒化学分析方法高锰酸钾-硫酸亚铁铵滴定法测定钒量
16.Present Situation of Technological Research on Preferential Extracting Vanadium from Vanadium-bearing Titanomagnetite Concentrate and Its Industrialization Prospects钒钛磁铁精矿先提钒工艺研究现状及产业化前景分析
17.Research and Application of Jaw Plates of HighChromium White Cast Iron with VTi and稀土钒钛高铬白口铸铁颚板的研究与应用
18.The Influence of V and Ti on Solidification of Gray Iron with High C . E. %钒钛对高碳当量灰铸铁凝固过程的影响
相关短句/例句

FeV钒铁
1.TRIAL PRODUCTION OF HRB400 BAR BY MICROALLOYING PROCESS OF "FeV+NITROGEN ENRICHMENT AGENT";“钒铁+富氮剂”微合金化HRB400钢筋生产试验
3)ferro-vanadium钒铁
1.The experiment to determine united silicon and manganese in ferro-vanadium is conducted, the best condition studied, the test and analysis for standard sample and other one come from Cheng Steel are done.对钒铁中硅锰联合测定进行了实验,研究了实验方法的最佳条件,对标准样品和承钢生产的钒铁进行了实验分析,结果满意。
2.This paper introduced the market development trend of vanadium products(include ferro-vanadium and vanadium oxide).介绍了钒产品(包括钒铁和五氧化二钒)的市场发展趋势,重点从2005年的45万元/t的钒铁历史高价开始分析,到近两年的市场平淡、平稳的原因,并且对从中反射出来的规律进行了总结。
4)Vanadium iron钒铁
1.This paper studies the application of ICP-AES for determining the elements of silicon, manganese, aluminium and phosphorus in vanadium iron.研究了应用电感耦合等离子体光谱法(ICP-AES法)测定钒铁中硅、锰、铝、磷元素,进行了试样分解试验,考察了基体、共存元素对被测元素的影响,确定了分析谱线、最佳工作参数,建立了同时测定硅、锰、磷、铝元素的分析方法,同时还进行了加标回收试验、精密度试验及准确度试验。
5)ferrovanadium[,fer?v?'neidi?m]铁钒
6)FeV particles钒铁微粒
延伸阅读

钒铁  钒和铁组成的铁合金,主要在炼钢中用作合金添加剂,高钒钒铁还用作有色合金的添加剂。常用的钒铁有含钒40%、60%和80%三种。中国钒铁生产的主要原料是钒钛磁铁矿,经选矿富集后,通过高炉炼出含钒生铁,在雾化炉或转炉吹炼过程中提取钒渣。钒渣经粉碎后配加钠盐(纯碱、食盐或无水芒硝)进行氧化钠化焙烧,使钒成为可溶的偏钒酸钠 (NaVO3),浸取净化后加硫酸铵沉淀出多钒酸铵 [(NH4)2V6O16],再经脱氨熔化,铸成片状五氧化二钒。要求成分为V2O597~99%,P<0.05%,S<0.05%,Na2O+K2O<1.5%。此外也从含钒铁精矿或含钒炭质页岩直接通过化学处理提取五氧化二钒。冶炼钒铁的主要方法为:    电硅热法 片状五氧化二钒用75%硅铁和少量铝作还原剂,在碱性电弧炉中,经还原、精炼两个阶段炼得合格产品。还原期将一炉的全部还原剂与占总量60~70%的片状五氧化二钒装入电炉,在高氧化钙炉渣下,进行硅热还原。当渣中V2O5小于0.35%时,放出炉渣(称为贫渣,可弃去或作建筑材料用),转入精炼期。此时,再加入片状五氧化二钒和石灰,以脱除合金液中过剩的硅、铝等,俟合金成分达到要求,即可出渣出铁合金。精炼后期放出的炉渣称为富渣(含V2O5达8~12%),在下一炉开始加料时,返回利用。合金液一般铸成圆柱形锭,经冷却、脱模、破碎和清渣后即为成品。此法一般用于含钒40~60%的钒铁冶炼。钒的回收率可达98%。炼制每吨钒铁耗电1600千瓦·时左右。    铝热法 用铝作还原剂,在碱性炉衬的炉筒中,采用下部点火法冶炼。先把小部分混合炉料装入反应器中,即行点火。反应开始后再陆续投加其余炉料。通常用于冶炼高钒铁(含钒60~80%),回收率较电硅热法略低,约90~95%。