A kind of preparation method and preparation device of spherical metal powder
A technology of metal powder and preparation device is applied in the field of preparation of spherical metal powder, and can solve the problems of high production cost, expensive equipment, complicated process and the like
Active Publication Date: 2021-05-07
SHANDONG WOMENS UNIV
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Problems solved by technology
[0004] The spherical metal powder produced by the plasma rotating electrode atomization method has a low yield of fine powder; while the gas atomization method uses high-speed airflow to impact the molten metal liquid, the gas will fill part of the liquid droplets, forming more hollow spheres, Detrimental to molded part quality
Moreover, the current preparation method of spherical metal powder has complicated process, expensive equipment and high production cost.
Method used
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Embodiment Construction
[0068] Such as figure 1 , 2 As shown, the spherical metal powder preparation device includes a vertical cylinder block 1; insulation layer 2; piston 3; vibrating screen 4; inflation valve 5; auxiliary heating unit 6; powder filling port 7; spherical powder discharge port 8; Air pressure sensor 9; temperature measuring thermocouple 10; exhaust valve 11.
[0069] Wherein, the vertical cylinder body 1 is used as the main body of the spherical metal powder preparation device, and the insulation layer 2 covers the outer wall of the cylinder body 1 for insulating the cylinder body; the piston 3 is installed in the cylinder body 1 and can The reciprocating motion is used to compress and expand the gas in the cylinder to obtain high-temperature gas and low-temperature gas. There is an inclined concave groove in the middle of the top 3 of the piston to collect metal powder. There is a hollow pipeline inside the piston. One end of the hollow pipeline is connected to the groove, and th...
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The invention discloses a spherical metal powder preparation device, which comprises a cylinder body, a thermal insulation layer, a piston, a vibrating screen, an inflation valve and an exhaust valve, wherein the thermal insulation layer is wrapped outside the cylinder body; the piston is installed in the cylinder body, and can Reciprocating movement in the cylinder body, the top of the piston is provided with a groove, the piston is provided with a hollow pipeline, and the upper end of the hollow pipeline is connected to the groove; the inflation valve is installed on the cylinder body, and one end is connected to an external inert gas source. One end communicates with the inner cavity of the cylinder; the exhaust valve is installed on the cylinder, one end communicates with the inner cavity of the cylinder, and the other leads to the outside of the cylinder; the upper part of the cylinder is provided with a powder filling port; the lower part of the steel body is provided with an outlet The material outlet, the lower end of the hollow pipeline can communicate with the material outlet on the cylinder body. The invention aims at some problems existing in the existing field of spherical metal powder preparation, and provides a spherical metal powder preparation device with simple structure and low preparation cost, which has high preparation efficiency and produces spherical metal powder products with excellent quality.
Description
technical field [0001] The invention belongs to the technical field of preparation of spherical metal powder, and in particular relates to a preparation method and a preparation device of spherical metal powder. Background technique [0002] With the development of metal injection molding and additive manufacturing technology, spherical metal powder has become more and more widely used in the fields of rapid manufacturing of parts, rapid prototyping of samples, and manufacturing of special-shaped parts. The fields of metal injection molding and additive manufacturing have strict requirements on the fluidity of metal powders. Irregular metal powders cannot be applied due to poor fluidity and low bulk density. The spherical metal powder has good fluidity and bulk density, so it is widely used in these fields. [0003] There are many types of metals and alloys that can be used to prepare spherical metal powder, including metals with higher melting points, such as titanium, zir...
Claims
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IPC IPC(8): B22F9/06
CPCB22F9/06
Inventor 朱秀峰朱红祥刘娟宋传珍
Owner SHANDONG WOMENS UNIV