Molybdenum-based rare earth oxide powder metallurgical alloy wafer and preparing method thereof

A technology of rare earth alloy and rare earth powder, applied in the field of molybdenum-based rare earth powder metallurgy alloy disc and its preparation

Active Publication Date: 2012-10-17
四平市北威钼业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, looking at the current technical status of the molybdenum wafer industry in our country, there are obvious deficiencies or weaknesses in at least four aspects: material ratio, homogeneous mixing, billet forming, and special technical equipment.

Method used

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  • Molybdenum-based rare earth oxide powder metallurgical alloy wafer and preparing method thereof
  • Molybdenum-based rare earth oxide powder metallurgical alloy wafer and preparing method thereof
  • Molybdenum-based rare earth oxide powder metallurgical alloy wafer and preparing method thereof

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Embodiment Construction

[0088] as attached figure 1 As shown, the molybdenum-based rare earth powder metallurgy alloy wafer and the preparation method thereof of the present invention include multi-component material ratio (I), ultrasonic homogeneous mixing (II), low-temperature flexible isostatic pressing (III), successive sintering and shaping (IV), grading and multi-pass rolling (V), fine processing (VI), commodity finishing and packaging (VII) 7 preparation technology units, and the technical equipment and technical parameters of their configuration.

[0089] as attached figure 1 As shown, the described multi-component material proportioning preparation technology unit (I) determines the proportioning ratio of various components of molybdenum-based rare earth powder metallurgy alloy discs, and manufactures molybdenum-based rare earth powder metallurgy alloy circles in batches The total weight of the sheet product is the base number, and the proportions of various ingredients are by weight: pure ...

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Abstract

The invention discloses a molybdenum-based rare earth oxide powder metallurgical alloy wafer and a preparing method thereof. The method adopts material blending technology of directly mixing three types of rare earth oxide powder in a high proportion into pure molybdenum powder, and employs characteristics of rare earth elements such as long big linkage grains, anti-sag performance and good creep performance and the characteristic that the rare earth element can exert strong dispersion strengthening effects and wrapping effects after adding and compounding to effectively improve the recrystallization temperature of molybdenum and improve the mechanical physical properties of the molybdenum-based alloy material. The method adopts preparing process procedures such as ultrasonic solid phase homogenizing and blending, low-temperature flexible isostatic pressing forming, step-by-step continuous sintering shaping, stagewise multi-pass rolling, and fine processing and grinding, and mating special technical equipment and execution process technical parameters. The method has the characteristics of advanced technology, complete configuration, reliable operation and low cost, and can prepare a molybdenum-based rare earth oxide powder metallurgical alloy wafer with excellent technical performance and high and fine surface quality.

Description

technical field [0001] The invention relates to a non-ferrous metal alloy material, in particular to a molybdenum-based rare earth powder metallurgy alloy disc and a preparation method thereof. technical background [0002] Molybdenum discs, because of their high melting point, still have high strength and hardness under high temperature conditions, can still maintain excellent electrical conductivity and heat transfer, and have excellent stability, and are widely used in aerospace, national defense and military industries , metallurgy, electric power, chemical industry, electronics, machinery and other production technology fields, especially in high-power emission tubes, high-voltage and high-current thyristors and rectifiers, high-temperature thermocouples and their protection tubes, high-temperature electric furnace heat shields, special electric light sources, etc. In technical products, it is a necessary basic functional material. [0003] The development and research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/00B22F3/16B22F3/24C22C27/04
Inventor 陈雄平陈晨
Owner 四平市北威钼业有限公司
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