1) high-vanadium steel
高钒钢
2) steel slag containing high vanadium
高钒钢渣
1.
This paper outlined in detail the domestic and foreign technological development on the metallurgy of vanadium extracting, and elaborated the feasibility and significance of withdrawing the vanadium from the steel slag containing high vanadium which is produced by the molten iron contained the vanadium in Panzhihua Iron & Steel Co.
本论文较详细地概述了国内外钒提取冶金的技术发展现状,阐述了攀钢用含钒铁水炼钢产生的高钒钢渣提取钒的可行性及重要意义,并对高钒钢渣熔融还原开展的一系列研究工作进行了全面的总结。
4) high vanadium high speed steel
高钒高速钢
1.
Effect of heat treatment on microstructure and properties of high vanadium high speed steel
热处理对高钒高速钢组织和性能的影响
2.
The effects of different potassium salt multi-modifications(potassium salt including B, Ti, Zr respectively) on carbide morphologies of high vanadium high speed steel were investigated in this article.
采用不同的钾盐复合变质剂(含B钾盐、含Ti钾盐、含Zr钾盐)对高钒高速钢进行变质处理。
3.
Different heat treatments were carried out on high vanadium high speed steel,X-ray diffraction instrument was used to measure retained austenite content, rolling wear tester was used to study the rolling wear properties of high vanadium high speed steel,and its microstructure was analysed by SEM,the effects of retained austenite on mechanical properties and rolling wear properties were studied.
对不同热处理下的高钒高速钢,采用X射线衍射仪测量其残余奥氏体量,利用滚动磨损试验机测量其耐磨性,分析了残余奥氏体量对其力学性能及滚动磨损性能的影响。
5) high-vanadium high-speed steel
高钒高速钢
1.
Rolling wear model of high-vanadium high-speed steel based on multiple regression analysis;
基于多次回归分析的高钒高速钢滚动磨损模型
2.
Compared with high-chromium cast iron,the rolling wear properties of high-vanadium high-speed steel(HVHSS) were studied on the self-developed wear testing machine,and the failure mechanism was analyzed via electron microscope.
以高铬铸铁为参照,在自制的模拟轧辊磨损试验机上研究了高钒高速钢的滚动磨损性能。
3.
Samples of high-vanadium high-speed steel with different hardness,impact toughnes were obtained by varying heat treatment conditions.
通过改变热处理工艺获得不同硬度及冲击韧性、含钒10%的高钒高速钢试样,提出了磨损稳定性的概念及采用磨损稳定性因子(K)量化磨损稳定性的方法,研究了硬度和冲击韧性对高钒高速钢的磨损稳定性影响。
6) high-Nitrogen and Vanadium steel
含钒高氮钢
补充资料:钒磷铁矿提钒
钒磷铁矿提钒
extraction of vanadium from the bear vanadium phosphosiderite
和94%。fantintiekuang tifan钒磷铁矿提钒(extraetion of vanadium frombear vanadium phosphosiderite)以含钒磷铁矿为原料制取五氧化二钒的帆提取方法。主要包括钠化焙烧和湿法漫出两道作业。直接用作提饥原料的是含饥磷铁。 含钒磷铁是饥磷铁矿电炉生产单质磷和磷肥的副产品。钒磷铁矿分布在美国爱达荷、蒙大拿、怀俄明、犹他等州,含Pz05 24%~32%、V:O。0.267%~0.625%和少量的铬、镍和钥等。美国克尔麦吉(Kerr-MeGee)化学公司所用的含钒磷铁含饥3.26%~5 .2%、磷24.7%~26.6%、铁59.9%一68.5%、铬3.4%一5.7%、镍。.84%~1%。先将含钒磷铁磨至粒度小于。.42mm,配入1.4倍纯碱和。.1倍的食盐在回转窑中于1043~lo63K温度下焙烧,钒便转变成水溶性的钠盐。熔烧块在加热到沸腾的水中浸出,钒、铬、磷均溶入浸出液。浸出浆液经过滤处理。滤液冷却结晶析出磷酸钠晶体,用离心机分离。晶体中如仍含有钒和铬,可用水重溶后再结晶分离,直到获得合格的磷酸钠(NaaPO;)晶体产品。若Na3PO‘结晶母液含磷高于0. 989/L时则要加入CaclZ,使其生成磷酸钙沉淀,然后水解回收钒。随后往母液中加入硝酸铅,沉淀出铬酸铅。此工艺的钒、铬和磷的回收率分别为85%、65%
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