A kind of preparation method and equipment of spherical molybdenum powder
A spherical molybdenum powder technology, applied in the field of spherical molybdenum powder preparation, can solve problems such as low efficiency, inability to complete the spheroidization process, and narrow particle size distribution, and achieve the effects of cost reduction, reasonable design, and strong adaptability
Active Publication Date: 2015-10-21
JINDUICHENG MOLYBDENUM CO LTD
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Problems solved by technology
How to send ordinary molybdenum powder into the plasma and collect it effectively is the difficulty of the plasma spheroidization method. It is generally required that the original molybdenum powder should have certain fluidity and the particle size distribution should be as narrow as possible, otherwise the spheroidization process or efficiency cannot be completed. very low
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Embodiment 1
[0039] Such as figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 The shown equipment for preparing spherical molybdenum powder includes a powder cooling tank 1 with an opening in the middle of the upper end, a reactor 2 installed at the opening in the middle of the upper end of the powder cooling tank 1, and a powder collection tank 3 arranged below the powder cooling tank 1 The reactor 2 comprises a reaction chamber 7 with an open lower end, an insulating water-cooled jacket 11 horizontally installed on the reaction chamber 7 and a molybdenum disc electrode 12 arranged inside the reaction chamber 7, the reaction chamber 7 The upper end of the upper end is provided with a purge gas pipeline 8 communicating with the inside of the reaction chamber 7, one end of the insulating water-cooled jacket 11 passes through the reaction chamber 7 and is located in the reaction chamber 7, and the other end of the insulating water-cooled jacket 11 Located outside the reaction ch...
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The invention discloses equipment for preparing spherical molybdenum powder. The equipment comprises a powder cooling tank, a reactor and a power collection tank, wherein an opening is formed in the middle of the upper end of the powder cooling tank, the reactor is mounted at the opening in the middle of the upper end of the powder cooling tank, and the powder collection tank is arranged below the powder cooling tank; the reactor comprises a reaction cavity, an insulating water-cooling clamp cover and a molybdenum disk electrode, an opening is formed in the lower end of the reaction cavity, the insulating water-cooling clamp cover is horizontally mounted on the reaction cavity, the molybdenum disk electrode is arranged in the reaction cavity, a blowing air pipeline communicated with the interior of the reaction cavity is arranged at the upper end of the reaction cavity, one end of the insulating water-cooling clamp cover penetrates through the reaction cavity and is located in the reaction cavity, and the other end of the insulating water-cooling clamp cover is located outside the reaction cavity. Beside, the invention further discloses a method for preparing the spherical molybdenum powder. The equipment has the advantages that the structure is simple, the design is reasonable, and the operation is simple and convenient; the spherical molybdenum powder is prepared by virtue of a discharging-melting technique, so that the nodulizing efficiency of the molybdenum powder is greatly increased, and the cost is lowered; the equipment has no specific requirement to a molybdenum powder raw material and is suitable for scale production.
Description
technical field [0001] The invention belongs to the technical field of powder metallurgy powder spheroidization, and in particular relates to a preparation method and equipment of spherical molybdenum powder. Background technique [0002] Molybdenum metal products and molybdenum-based alloy materials are mainly prepared by powder metallurgy. The quality of molybdenum powder is a key link, and its physical and chemical properties have become a key factor affecting the quality of molybdenum products. Ordinary molybdenum powder has small particle size and bulk density, no fluidity, and irregular powder microscopic morphology, so it is not suitable for the preparation of high-quality molybdenum metal products and molybdenum-based alloy materials. It is even more incompetent in precision electronic devices, net near forming, and high-efficiency spraying. [0003] Granulation is a common technical means to improve the physical properties of molybdenum powder and broaden the appli...
Claims
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IPC IPC(8): B22F9/14
Inventor 武洲左羽飞陈强胡林
Owner JINDUICHENG MOLYBDENUM CO LTD