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Application of Double-boat Process in Processing of Doped Tungsten Wire

Author: PanXiaoFeng
Tutor: LuGuiMin
School: Northeastern University
Course: Materials Engineering
Keywords: Double boat Reduction Granularity Metallographic High-temperature performance
CLC: TF841.1
Type: Master's thesis
Year: 2008
Downloads: 16
Quote: 0
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Abstract


In recent years , due to the continuous price increases of raw materials , tungsten producers brought enormous cost pressure . An invincible position in the market , in order to be able to sustainable development , the only way out is to ensure that the existing quality at the same time , reform and innovation through technology to reasonably reduce production costs and enhance their own competition in the market force. The content of the research on the basis of quality assurance , the use of double- boat process to reduce product costs , improve competitiveness . The topics selected dual boat technology used in the system to take on doped tungsten wire process , designed to draw on the theoretical and practical experience in the single boat craft , through design double Zhouzhou dish , and restore vertical melting cogging and annealing key process technology research to prove the double boat craft used in preparation of doped tungsten filament process feasibility . The topics for small batch production line test batch trial production line and production line mass production to verify the three stages of production verification , to ensure reliable research to ensure that the test and production can converge consistent to ensure the process of double boat promotion of the results of practical use . The research by means of scanning electron microscopy and laser particle size distribution analyzer , FSSS average particle size analyzer , optical microscopy , atomic absorption and other advanced equipment , the test process product quality analysis verification , to ensure the effective and scientific . The subject after the test Φ0.39mm wire for a large number of high - temperature performance analysis and the chemical composition analysis, and the aim to guarantee the performance of the production of tungsten bis boat to be able to meet the needs of customers . The subject of research results to reduce the cost of production , has brought huge economic benefits to the enterprise , as well as doped tungsten powder at home and abroad to restore the new technology is creating a new method .

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CLC: > Industrial Technology > Metallurgical Industry > Nonferrous metal smelting > Rare metal smelting > Refractory metals smelting ( high - temperature molten metal ) > Tungsten
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