Preparation device and preparation technology for polymer-based spherical powder

A technology for preparing devices and spherical powders, which is applied in manufacturing auxiliary devices, solid material additive processing, food science, etc. It can solve the problems of poor powder mixing effect and powder shape, low production efficiency, and narrow adaptability of polymer types, etc. problems, to achieve the effect of stable product properties and improved production efficiency

Active Publication Date: 2020-04-21
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But there are also certain defects: the cryogenic pulverization method is simple to operate, but the powder mixing effect and powder shape are poor; the powder prepared by the solvent precipitation method is uniform in size and uniformly mixed, but the operation is complicated and the production efficiency is low; the spray drying method consumes a lot of energy. organic solvents that may pollute the environment
[0006] But the technical content of above-mentioned disclosed prior application patent also has following defect or problem: 1, the used grinding disc type solid-phase mechanochemical reactor (patent No. is ZL95111258.9, publication number is CN1130545A) is based on The patent applied for by the applicant of the invention in 1995, the reactor is a vertical grinding disc, the vertical grinding disc has no vacuum system and hydraulic device, relying on manual feeding and pressurization, the operation is complicated, and the production efficiency is not hi

Method used

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  • Preparation device and preparation technology for polymer-based spherical powder
  • Preparation device and preparation technology for polymer-based spherical powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 As shown, a polymer-based spherical powder preparation device includes a disc grinding system and an inductively coupled plasma powder spheroidization system,

[0053] The millstone grinding system includes a feed hopper 1, a millstone cavity cover composed of a fixed millstone chamber cover 3 and a rotating millstone chamber cover 8, a fixed millstone 6, a rotating millstone 7, a rotating bearing 9, and a transmission device composed of a transmission chain 10 , a motor 11 and a liquid medium temperature regulating system; the fixed grinding disc 6 and the rotating grinding disc 7 are respectively fixed in the fixed grinding disc cavity cover 3 and the rotating grinding disc cavity cover 8, the rotating grinding disc 7 is fixedly connected with the rotating bearing 9, and is driven by the motor 11 The transmission chain 10 drives the rotating bearing 9 to rotate, thereby driving the rotating grinding disc 7 to rotate. The fixed grinding disc 6 and the ...

Embodiment 2

[0077] Such as figure 1 As shown, a polymer-based spherical powder preparation device includes a disc grinding system and an inductively coupled plasma powder spheroidization system,

[0078] The millstone grinding system includes a feed hopper 1, a millstone cavity cover composed of a fixed millstone chamber cover 3 and a rotating millstone chamber cover 8, a fixed millstone 6, a rotating millstone 7, a rotating bearing 9, and a transmission device composed of a transmission chain 10 , a motor 11 and a liquid medium temperature regulating system; the fixed grinding disc 6 and the rotating grinding disc 7 are respectively fixed in the fixed grinding disc cavity cover 3 and the rotating grinding disc cavity cover 8, the rotating grinding disc 7 is fixedly connected with the rotating bearing 9, and is driven by the motor 11 The transmission chain 10 drives the rotating bearing 9 to rotate, thereby driving the rotating grinding disc 7 to rotate. The fixed grinding disc 6 and the ...

Embodiment 3

[0101] Such as figure 1 As shown, a polymer-based spherical powder preparation device includes a disc grinding system and an inductively coupled plasma powder spheroidization system,

[0102] The millstone grinding system includes a feed hopper 1, a millstone cavity cover composed of a fixed millstone chamber cover 3 and a rotating millstone chamber cover 8, a fixed millstone 6, a rotating millstone 7, a rotating bearing 9, and a transmission device composed of a transmission chain 10 , a motor 11 and a liquid medium temperature regulating system; the fixed grinding disc 6 and the rotating grinding disc 7 are respectively fixed in the fixed grinding disc cavity cover 3 and the rotating grinding disc cavity cover 8, the rotating grinding disc 7 is fixedly connected with the rotating bearing 9, and is driven by the motor 11 The transmission chain 10 drives the rotating bearing 9 to rotate, thereby driving the rotating grinding disc 7 to rotate. The fixed grinding disc 6 and the ...

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Abstract

The invention provides a preparation device and preparation technology for polymer-based spherical powder. The preparation device comprises a grinding disc grinding system and an inductive coupling plasma powder nodulizing system, and the grinding disc grinding system of the preparation device achieves material ultrafine grinding under the room temperature condition by exerting strong extruding stress, cutting stress and circumferential stress to materials; and the inductive coupling plasma powder nodulizing system takes high-temperature plasmas as a high-temperature heat source, polymer powder is heated uniformly, the melting and cooling rate is high, and nodulizing treatment can be completed in an ultrashort time. According to the preparation device, the preparation process of the polymer-based spherical powder is integrated and achieves continuous production, the preparation technology is significantly improved, therefore, the polymer-based spherical powder material which has the excellent performance and can be applied to the SLS field is prepared, and large-scale batch production can be achieved.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a preparation device and a preparation process of a polymer-based spherical powder, which is especially suitable for the preparation of raw materials for selective laser sintering technology. Background technique [0002] Selective laser sintering (SLS) technology is an important 3D printing technology, which is an advanced manufacturing method based on discrete / stacking principles that has developed rapidly in recent years. SLS technology uses the thermal effect of laser to selectively melt powder materials according to CAD model, and superimpose them layer by layer to form the final product. Compared with traditional processing methods, the technical advantages of SLS processing mainly lie in free forming and integral manufacturing, which can be used to produce parts with arbitrary complex structures, and realize the customized production of complex parts. [0003]...

Claims

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Application Information

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IPC IPC(8): B02C7/08B02C7/11B29C64/153B29C64/307B29B13/10B29B13/00B33Y40/00
CPCB02C7/08B02C7/11B29B13/00B29B13/10B33Y40/00B29C64/153B29C64/307
Inventor 白时兵宋世平李怡俊陈宁
Owner SICHUAN UNIV
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