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Silicon nitride ceramic powder suitable for 3DP forming process and treatment method
The invention discloses silicon nitride ceramic powder suitable for a 3DP forming process and a treatment method. According to the method, 80-mesh silicon nitride powder and 200-mesh silicon nitride powder are mixed and graded, then the mixed and graded silicon nitride powder is subjected to component modification by adding a water-soluble polymer material, and finally the modified material is dried, ground and sieved. The surface quality of a 3DP formed part can be well improved, the surface roughness of the part is reduced, and the forming size precision reaches +/-0.3 mm through powder particle grading, powder component modification and powder post-treatment.
本发明公开了一种适用3DP成型工艺用氮化硅陶瓷粉体及处理方法，所述方法通过将80目氮化硅粉体和200目的氮化硅粉体混合级配，然后将混合级配后的氮化硅粉体通过添加水溶性聚合物材料进行成分改性，最后将改性后的物料烘干研磨过筛。本发明经过粉料颗粒级配、粉料成分改性、粉料后处理，可以很好地改善3DP成型制件的表面质量，降低制件表面粗糙度，成型尺寸精度达±0.3mm。
Silicon nitride ceramic powder suitable for 3DP forming process and treatment method
The invention discloses silicon nitride ceramic powder suitable for a 3DP forming process and a treatment method. According to the method, 80-mesh silicon nitride powder and 200-mesh silicon nitride powder are mixed and graded, then the mixed and graded silicon nitride powder is subjected to component modification by adding a water-soluble polymer material, and finally the modified material is dried, ground and sieved. The surface quality of a 3DP formed part can be well improved, the surface roughness of the part is reduced, and the forming size precision reaches +/-0.3 mm through powder particle grading, powder component modification and powder post-treatment.
本发明公开了一种适用3DP成型工艺用氮化硅陶瓷粉体及处理方法，所述方法通过将80目氮化硅粉体和200目的氮化硅粉体混合级配，然后将混合级配后的氮化硅粉体通过添加水溶性聚合物材料进行成分改性，最后将改性后的物料烘干研磨过筛。本发明经过粉料颗粒级配、粉料成分改性、粉料后处理，可以很好地改善3DP成型制件的表面质量，降低制件表面粗糙度，成型尺寸精度达±0.3mm。
Silicon nitride ceramic powder suitable for 3DP forming process and treatment method
一种适用3DP成型工艺用氮化硅陶瓷粉体及处理方法
WANG YINGYING (Autor:in) / LI LING (Autor:in) / SUI SONGLIN (Autor:in) / LIU SHIHAO (Autor:in) / CHEN DAQIAN (Autor:in)
06.11.2020
Patent
Elektronische Ressource
Chinesisch
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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