Study of Down-stream Processing of W-Ce Billet

LI Peng

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 29-31

W-Ce is a W-doped product difficult to process, and the processed products often have defects such as cleavage and core wrapping. Study is made on the down-stream processing of W-Ce billet on the basis of experimental results and the suitable down-stream processing technology for the said product is found out.

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Determination of Trace Elements in Cobalt Oxide by XRF

QIU Lin-you

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 32-34

Sample is solved with hydrochloric acid, and thin film is made with filter paper. using this thin film, Fe, Mn, Ni and Ca in cobalt oxide can be determined by x-ray fluorescence.

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Ancordense Warm Compaction Prcess

XIAO Xin-zhu

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 34-39

The thesis briefly presents Ancordense warm compaction process, equipment feature,unique property and its wide application.

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Investigation on Synthetic Diamond and its Synthetic Theory

QIU Dian-yun;MA Rong-jun

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 40-42

Synthetic diamond has become more and more important in industry application The paper describes its discovery,developing history, propertities and structure. It also describes synthetic theories,their limitation and rescach trends.

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Opportunity, Challenge and Countermeasure──Topic on What China's Cemented Carbide Industry Will Face and do after joining WTO

HE Zhong-chun

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 43-47

In this paper, analysis and calculation have-been carried out on the situation with which chinese cemented carbide industry will face after joining WTO .and some countermeasures were put forward about how to exist and develop for Chinese cemented carbide industry at this new situation.

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Development and Application of Mo Alloy Agitator

XIA Yao-qin;WANG Jing-sheng

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 48-52

The paper briely describes the development and application of Mo alloy agitator and its majol components.The frame of TZM(Ti-Zr-Mo)Mo alloy agitator，manufactured by P／M Compactlon，free forging and fine forging，is suited to the requirements of Pt－Rh coated Mo alloy aqltator of glass－shelled furnace for coloured picture tube The said product can be made in china in commercial scale with good economic and social benefits

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Discussion on the WO_3 Reduction Conditions and Equipment

LIU Rui-hua

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 52-55

WO3 reduction is one of the major processes for the production of medium-size or fine W powders in cemented carbide industry. Analysis is made of the influence of the WO3 reduction technological parameters and equipment on W powder quality.

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Discussion on the Recovery of Rare Metals from Ta/Nb Hydrometallurgy

CHEN Ji-ming

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 56-58

Analysis and discussion is made with respect to the recovery of rare metals from several types of Ta/Nb raw materials, highly containing rare metals. It is concluded that the recovery of the rare metals during Ta/Nb production offers good economic and social benefits.

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Present Development of Titanium Industry and its Outlook

LIU Shi-you

Rare Metals and Cemented Carbides | Vol., Issue 4, 1997 | pp. 58-63

Distribution of mineral resources of Ti in the world and its physical and chemical properties are briefly introduced in the paper. The Present status of Ti applications in the fields of aeronautics and aerospace .military affairs .petrol-chemical industry, marine, automobile. metallurgy, medicine.agriculture and animal husbandry and others are reviewed in details. And the supply and demand of Ti in the world from 1996 to 2005 are predicted.

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Research on Preparation of Fluorescent grade Low Cl- Eu_2O_3

HUANG Shi-yan;ZHOU Shao-hui;ZOU Dong

Rare Metals and Cemented Carbides | Vol., Issue 3, 1997 | pp. 1-3

For producing fluorescent-grade low-Cl-Eu2O3, research was made on the ef fects of oxalic acid precipitation conditions (temperature, feeding method etc.) and treat ment methods of the precipitated products on Cl-content in Eu2O3. Optimum technological conditions for production of low-Cl-Eu2O3 have been found.

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