钛及钛合金铸锭生产现状及其标准化

分析了钛及钛合金铸锭熔炼技术现状及铸锭的产能、产量情况。阐述了宝钛集团有限公司、宝鸡钛业股份有限公司编制的《钛及钛合金铸锭》国家标准中检验项目和指标的确定依据、目的和作用。制定该标准不仅有利于促进钛及钛合金铸锭的质量控制,而且可有效指导需方的采购、供方的生产,促进生产、交易的规范化。     

钒钛磁铁矿中二氧化钛的测定

通过用加入氟化钠来消除过氧化氢比色法测定钒钛磁铁矿中的钛对钒对钛的干扰，较好地解决了钒钛磁铁矿中钛的测定，该法具有简单、快速、线性范围宽的优点，在实际生产中取得较好的效果.     

云南禄劝甲甸钛铁砂矿地质特征及成因分析

叙述了云南禄劝甲甸钛铁矿矿床的研究区地质概况,阐述了研究区辉绿辉长岩体风化后形成的风化壳型钛铁砂矿矿床地质特征、矿床成因、找矿标志等。通过分析研究认为,广泛分布于禄劝境内的辉绿辉长岩风化壳,是寻找钛砂矿的有利地段,并具有很好的找矿前景。     

济钢用稀土处理含钛钢的工业实践

从工艺的角度介绍了济钢用稀土处理钛微合金化钢，不仅可以稳定钛的收得率，而且还可显著改善钢水流动性，对钢质及钢板的性能都有较好的作用，提出了稀土的新用途。     

Effect of various sintering methods on microstructures and mechanical properties of titanium and its alloy (Ti–Al–V–X): A review

Titanium having high demand in aircraft industries because of its mechanical properties like high strength to weight ratio, high temperature performance and it’s resistant to corrosion. Therefore, Titanium and its alloys are used in airplane and engine applications. One of the major usages of alloy in the aircraft industries are Titanium alloy. By using Powder Metallurgy, the powder materials are compacted and sintered in the furnace to achieve high densities for the further process of the samples. In this paper reviews the various research investigations of Titanium and its alloy (Ti–% Al–% V–% X alloy), to optimize the microstructure and mechanical properties by various sintering methods like Conventional, Spark plasma and Microwave sintering techniques. From this the major advantages in the Spark plasma sintering tend to reduce the sintering time with high temperatures, achieving higher densities and improved microstructures tends to improve the mechanical properties of the material.     

镁法海绵钛还原剂精镁中K＋含量探析

文章论述了镁法海绵钛生产中还原剂精镁中K＋的来源、存在的机理,总结精镁中K＋含量对海绵钛产品质量影响及有效降低精镁中K＋含量的措施。     

Extreme Expansion and Reversible Hydrogen Solubility in h.c.p. Titanium Stabilized by Colossal Interstitial Alloying

Metallurgical and Materials Transactions A - Titanium and its alloys are very reactive and have a high affinity to interstitial elements. Titanium is one of the metals that forms very stable...     

我国钛资源分布和生产现状

钛及其合金具有比强度高、耐蚀性能优、生物相容性好等优点，是一种战略金属，主要用于航空、航天、航海等先进装备。钛白粉是一种重要的化工原料。人造金红石高钛渣、天然金红石等富钛料是生产钛白粉电焊条和海绵钛的原料。本文概述了我国钛矿物的地理分布和由钛原矿到海绵钛的生产工艺，并与国外技术进行了对比说明。介绍了我国钛精矿、富钛料的产能、生产现状和国内需求情况。     

抚顺钛厂发展规划

分析了世界钛市场的发展现状及近2年中国钛市场快速增长的成因,并就中国钛市场的发展前景进行了预测;介绍了抚顺钛厂的发展现状,并着重分析了抚顺钛厂发展面临的大好机遇及发展海绵钛的独到优势,在此基础上提出了抚顺钛厂今后3年的发展规划。     

利用煤矸石制取优质高岭土的试验研究

某煤系高岭岩系列煤矸石经干馏脱油气、脱碳、强磁选、浸出、氯化焙烧除铁、钛及增白工艺 ,制取优质高岭土取得了较理想的结果 ,且试验的重现性好、指标稳定 ,其铁、钛含量可相应降低到 1%以下 ,产品白度大于 90度。     

硫酸铜回收工艺研究

文章对洗钛废酸(含硝酸、硫酸、氢氟酸)与钛铜复合棒封顶残余铜料、废旧金属铜反应制取国标二级五水硫酸铜的生产工艺进行了研究,对生产过程中产生的废液、废气阐明治理方案,确保污染物排放环保达标.     

2011年中国钛精矿及海绵钛市场评述

2011年中国钛市场经历了由平淡到火爆,再由火爆转入低迷的大起大落。介绍了2011年中国钛矿的供应和需求状况,分析了钛精矿、高钛渣、四氯化钛以及海绵钛的价格走势及市场剧烈波动的原因。2011年上半年中国钛白粉企业大量生产,下半年又减产停产,使得钛矿价格剧烈波动,继而引起下游产品高钛渣、四氯化钛及海绵钛价格的大起大落。     

汽车排气系统用不锈钢409L系的质量控制

简述了太钢第二炼钢厂生产汽车排气系统用不锈钢409L系的工艺特点,分析了超低碳不锈钢生产中碳、氮和钛的控制,并针对生产过程中影响钛回收率的相关因素进行了分析,提出了该钢种生产中存在的主要问题及其采取的措施。     

高效节能油气两用燃烧器在高钛渣生产技术中的应用

在高钛渣生产工艺中,采用油气两用燃烧器对钛铁矿与煤粉在电炉熔炼过程中产生的尾气进行回收利用,为无烟煤、钛铁矿和高钛渣的干燥提供热源。实践表明,油气两用燃烧器具有工艺先进、节能高效、安全环保的特点。     

含钛炮泥护炉探讨

为保证高炉安全生产 ,保护铁口及炉缸的铁口周围部分 ,减轻铁口砖衬的侵蚀 ,探讨利用含钛炮泥维护铁口。生产试验证明 ,含钛炮泥可降低铁口区炉缸侧壁温度 ,提高铁口孔道抗铁水、炉渣的冲刷能力。     

EAF-CSP流程钛微合金化高强钢板的组织和性能研究

珠钢采用Ti微合金化技术在EAF—CSP流程上成功地开发出屈服强度为450～700MPa的高强度热轧钢板。系统地研究了试验钢的组织和性能．并分析了组织与性能的关系。结果表明，随钛含量增加或成品厚度减薄钢板的屈服强度显著提高，最高达到695MPa；钛的质量分数低于0．024％时对屈服强度影响不大；当钛的质量分数低于0．045％时．钢板屈服强度的提高主要来自于晶粒细化，而当钛的质量分数大于0．045％后，钢板强度的进一步提高来自于沉淀强化。     

Matrix/reinforcement interactions in shock-wave consolidated titanium aluminide reinforced with SiC

Explosive shock-wave consolidation has been used to fabricate a composite consisting of gamma phase titanium aluminide matrix reinforced with paniculate silicon carbide. Although the consolidation process takes less than a microsecond to complete, melting of the surfaces of the titanium aluminide powder particles results in a reaction with the silicon carbide. Titanium suicide and titanium carbide form in the molten zone, depleting it of titanium to the extent that its final composition is TiAl₃. In addition, a second titanium suicide phase forms on the surfaces of the silicon carbide particles. This paper is based on a presentation made in the symposium “Interfaces and Surfaces of Titanium Materials” presented at the 1988 TMS/AIME fall meeting in Chicago, Illinois, September 25–29, 1988, under the auspices of the TMS Titanium Committee.     

Synthesis of Fine Titanium Powders Via Solution Route

Abstract

Titanium, because of its light weight, high specific strength, corrosion resistance and biocompatibility is a demanding material for aerospace, chemical processing industries and biomedical applications. Titanium powders produced from titanium sponge, hydride-dehydride processes and by a variety of centrifugal atomisation techniques from liquid metals are relatively coarse. If fine size titanium powders can be produced, then the grain size in the sintered titanium will be small thereby contributing to the high strength of the product. In the present investigation, an attempt has been made to synthesize fine titanium powders from titanium dioxide. The later is allowed to form a complex, titanium catecholate, in the presence of ammonium sulphate and concentrated sulphuric acid. The complex is filtered, washed with cold isopropyl alcohol and dried. Titanium hydride is prepared by heating the titanium catecholate in the temperature range 500-600°C in hydrogen atmosphere. The powder obtained is crushed ground and reheated at temperatures upto 950°C in vacuum. The product is rapidly cooled from this temperature to obtain titanium powders. The powder characteristics such as particle size and crystallization have been evaluated and these results are reported and discussed.     

Replacement of ear ossicles with titanium prostheses

BACKGROUND: Titanium has been a well established implant material for many years. New material processing techniques now permit the manufacture of small implants for ossicular chain reconstruction. METHODS: Between November 1994 and September 1995, 100 titanium middle ear implants (55 PORP, 45 TORP) were used for reconstruction of the ossicular chain. A range of five different sizes for partial and total protheses suits all implantation needs. The shape of the implants can be altered by bending. Time consuming intraoperative shaping and trimming is avoided. RESULTS: At a follow-up time of three months (33 patients) and six months (17 patients), no adverse reactions or extrusions occurred. Biologic fixation between the foot of the partial prothesis and the head of the stapes was found eight months after implantation. A hearing result of 0-20 dB residual air-bone gap was achieved in 79%. CONCLUSION: Titanium middle ear implants show good bio-compatibility and are readily integrated into the ossicular chain. Although delicate in shape, they offer excellent mechanical properties in respect to sound conduction and implantation. Initial results show Titanium to be a perfect implant material for middle ear prostheses, although long-term results are not yet available.     

ZTC4精铸用TC4钛合金大棒工业化试验研究

以西部钛业有限责任公司（以下简称“西部钛业”）的生产情况为例,主要介绍了我国航空ZTC4精铸件用TC4钛合金棒材的原料试制情况,重点是棒料和铸件的化学成分变化情况。