Equipment and technology for preparing superfine spherical metal powder by means of ultrasonic vibration and atomization

Abstract

The invention provides an equipment and technology for preparing superfine spherical metal powder by means of ultrasonic vibration and atomization. The metal powder is prepared by adopting a stepless speed-regulation ultrasonic vibration wire feeding system and a vacuum electron beam generator or multiple plasma generators to melt and atomize metal materials in a combined mode. The equipment comprises a vacuum atomizing chamber and a barrel thereof, the upper portion of the barrel is communicated with a vacuum pumping exhaust pipeline and the electron beam generator, the left end of the barrel is provided with a front door, the right end of the barrel is provided with a vacuum atomizing chamber rear door, the outer surface of a powder accumulation hopper, the outer surface of the barrel and the outer surface of the vacuum atomizing chamber front door are each coated with a cooling water jacket, and an auxiliary mechanical chamber is defined by an atomizing chamber interlayer arranged inside the barrel and the vacuum atomizing chamber rear door. According to the equipment and technology for preparing the superfine spherical metal powder by means of ultrasonic vibration and atomization, two metal powder preparation methods are combined into a whole and selectively used, continuous long-time large-capacity production can be achieved through only one-time starting, and the produced powder is high in purity, fine in particle size, centralized in distribution and significant in spherical appearance characteristic; the equipment occupied space is small, operation is easy, the investment is low, and the running cost is low.

Description

technical field [0001] The invention belongs to the technical field of special equipment manufacturing and relates to metal powder preparation equipment, in particular to equipment and a preparation process for preparing titanium and titanium alloy fine spherical metal powders by ultrasonic vibration atomization in a vacuum or in an environment filled with inert gas. Background technique [0002] In recent years, cutting-edge science such as 3D printing and laser forming technology has developed rapidly. Under this background, higher requirements are put forward for the raw materials of metal powder required. The requirements for technical performance indicators such as chemical purity, sphericity, particle size and particle size uniform distribution of metal powder products are getting higher and higher. High-performance and high-quality metal powder will be the cornerstone of high-tech industrialization and commercialization such as 3D printing. Metal powder, as an import...

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Problems solved by technology

[0005] In order to overcome the technical defects and deficiencies such as coarse particles of metal powder prepared in the prior art, large investment in equipment, large area occupation, high production cost, and inability to large-scale industrialization, the present invention provides a method for preparing fine spherical metal powder by ultrasonic vibration atomization method. equipment and preparation process

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