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Preparation method of metal powder

A metal powder and spherical powder technology, which is applied in the field of metal powder preparation, can solve the problems of different droplet linear velocity, low powder spheroidization rate, and easy impact on the inner wall of the device, so as to achieve simple and convenient production process and high quality consistency , good forming effect

Pending Publication Date: 2022-03-25
HUIJIN ATOMIZING SCI
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Problems solved by technology

[0004] However, after the atomized droplets are sprayed out from the nozzles of the atomizing turntable, they still have a relatively high linear velocity, so the droplets are easy to hit the inner wall of the device after being sprayed out, which eventually leads to a low spheroidization rate of the final formed powder. question
One of the ways to solve this problem is to expand the inner diameter of the device, but due to different atomization treatment conditions, the linear velocity of the sprayed droplets is different, and the method of changing the inner diameter of the device is not flexible and changeable, and the device with a larger inner diameter also has occupancy. big space problem

Method used

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preparation example Construction

[0027] as attached figure 1 As shown, the preparation method of a metal powder proposed by the present invention includes the following steps: sending molten cuprous chloride liquid into the atomization device 1, and cooling and solidifying the atomized droplets, Spherical powder is formed; the spherical powder is subjected to secondary cooling treatment, and then sent out of the atomization device 1 to obtain metal powder.

[0028] In the present invention, as attached figure 2 As shown, the atomization device mainly includes a tank body 101 , an installation port 102 arranged at the upper end of the tank body 101 for installing the atomization turntable 2 , and a discharge port 103 arranged at the lower end of the tank body 101 . Wherein, the atomization turntable 2 mainly includes a turntable body 201 arranged inside the tank body 101, a feed pipe 202 arranged at the upper end of the turntable body 101, and a bottom end of the turntable body 201. An atomizing nozzle 203 ...

Embodiment

[0033] The metal powder production equipment provided in this embodiment mainly includes an atomization device 1, an atomization turntable 2, a primary cooling structure 3, and a secondary cooling structure 4, wherein the atomization device 1, the atomization turntable 2, and the secondary cooling structure 4 are structured As mentioned above, this embodiment mainly optimizes the structure of the primary cooling structure 3 .

[0034] In this embodiment, as attached figure 2 , 3As shown, the primary cooling structure 3 includes an annular pipe body 301 arranged on the inner side wall of the middle part of the tank body 101 and having a diameter larger than that of the atomizing turntable 2, arranged on the annular pipe body 301 and used The inclined nozzle 302 blowing air toward the outer ring surface of the atomizing turntable 2, the first air inlet pipe 303 arranged on one side of the annular pipe body 301, and the outer wall of the tank body 101 and A fan 304 connected t...

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Abstract

A preparation method of metal powder comprises the following steps that molten cuprous chloride liquid is fed into an atomization device, liquid drops obtained after atomization treatment are subjected to cooling and shape fixing treatment, and spherical powder is formed; and secondary cooling treatment is conducted on the spherical powder, then the spherical powder is sent out of the atomization device, and the metal powder is obtained. By adopting a two-stage cooling process treatment mode, the obtained metal powder has the beneficial effects of being good in forming effect and high in yield, and meanwhile the beneficial effect of reducing the occupied space of equipment is achieved.

Description

technical field [0001] The invention belongs to the technical field of metal powder preparation, and in particular relates to a method for preparing metal powder. Background technique [0002] Cuprous chloride is a catalyst widely used in the organic synthesis industry. Under its catalysis, it can produce a variety of organic chemical products, such as vinyl acetylene, chlorobutadiene, acrylonitrile, methyl chlorosilane, etc. Especially in the production of methylchlorosilane mixed monomers in the organosilicon industry, it is almost a necessary catalyst. In the petrochemical industry, cuprous chloride is also commonly used as a decolorizer, desulfurizer and release agent, and is mainly used as a catalyst and reducing agent in the oleochemical industry. [0003] At present, there are mainly atomization methods for the preparation of cuprous chloride powder. For example, Japanese patent JP2002234731 describes a method of producing spherical cuprous chloride by gas atomizati...

Claims

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Application Information

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IPC IPC(8): B22F9/08B22F1/065
CPCB22F9/082B22F2009/086
Inventor 陈新国
Owner HUIJIN ATOMIZING SCI
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