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Preparation method of laser sintering 3D printing rapid prototyping silicon nitride powder material
The invention discloses a preparation method of a laser sintering 3D printing rapid prototyping silicon nitride powder material. The preparation method is characterized by comprising the following steps: firstly, pretreating silicon nitride ceramic powder with gamma-methacryloxypropyltrimethoxysilane in an ethyl alcohol solvent to obtain pretreated silicon nitride ceramic powder; then, in percentage by mass, adding 75-88% of the pretreated silicon nitride ceramic powder, 5-15% of phenolic resin, 0.5-1.5% of melamine and 0.2-1.5% of glyceryl tristearate into a grinding miller, starting the grinding miller, grinding for 10min at 200r/min, and adding acetone, wherein the sum of all the components is 100%; starting the grinding miller, grinding for 30min at 200r/min, and drying, thus obtaining the laser sintering 3D printing rapid prototyping silicon nitride powder material. The material can be directly prototyped under the condition of laser sintering; the preparation process is simple, the preparation conditions are easy to control, and the production cost is low; therefore the preparation method of the laser sintering 3D printing rapid prototyping silicon nitride powder material can be easily put into industrial production.
Preparation method of laser sintering 3D printing rapid prototyping silicon nitride powder material
The invention discloses a preparation method of a laser sintering 3D printing rapid prototyping silicon nitride powder material. The preparation method is characterized by comprising the following steps: firstly, pretreating silicon nitride ceramic powder with gamma-methacryloxypropyltrimethoxysilane in an ethyl alcohol solvent to obtain pretreated silicon nitride ceramic powder; then, in percentage by mass, adding 75-88% of the pretreated silicon nitride ceramic powder, 5-15% of phenolic resin, 0.5-1.5% of melamine and 0.2-1.5% of glyceryl tristearate into a grinding miller, starting the grinding miller, grinding for 10min at 200r/min, and adding acetone, wherein the sum of all the components is 100%; starting the grinding miller, grinding for 30min at 200r/min, and drying, thus obtaining the laser sintering 3D printing rapid prototyping silicon nitride powder material. The material can be directly prototyped under the condition of laser sintering; the preparation process is simple, the preparation conditions are easy to control, and the production cost is low; therefore the preparation method of the laser sintering 3D printing rapid prototyping silicon nitride powder material can be easily put into industrial production.
Preparation method of laser sintering 3D printing rapid prototyping silicon nitride powder material
LI HUIZHI (Autor:in) / ZHANG PEIZHI (Autor:in) / CAO CHONG (Autor:in) / HOU JINHUAN (Autor:in)
01.07.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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