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Preparation of fused and re-fired ceramic particles and adhesive sprayed ceramic
The invention discloses preparation of fused and re-fired ceramic particles and adhesive sprayed ceramic, and relates to the technical field of additive manufacturing. According to the ceramic particles provided by the invention, a melting and re-sintering mode is adopted, ceramic powder with high sintering activity is selected and compounded with glass powder, low-temperature melting and sintering are performed after re-granulation, and the low-temperature sintering temperature is higher than the softening point temperature of glass and lower than the sintering temperature of the ceramic powder; the glass powder is promoted to melt and bond with the ceramic powder, and the particle volume is reduced, so that the ceramic particles with high density and high sphericity can be obtained; the prepared ceramic particles are very suitable for powder bed powder laying work of adhesive spraying equipment, the powder bed density is greatly improved, and the high sintering activity of ceramic powder is reserved. The ceramic particles prepared by the method are used as a raw material to manufacture a green body by using adhesive spraying equipment, and the green body is further degreased and sintered to obtain an adhesive spraying ceramic piece with high performance.
本发明公开了一种熔融复烧陶瓷颗粒及粘接剂喷射陶瓷的制备，涉及增材制造技术领域。本发明提供的陶瓷颗粒是采用熔融复烧的方式，选用具有高烧结活性的陶瓷粉体与玻璃粉体复配，经重新造粒后进行低温熔融烧结，所述低温烧结的温度高于玻璃的软化点温度且低于陶瓷粉体的烧结温度，促使玻璃粉体熔融粘结陶瓷粉体，减小颗粒体积，由此可获得具有高密度、高球形度的陶瓷颗粒；本发明制得的陶瓷颗粒非常适合粘接剂喷射设备的粉床铺粉工作，大大提高了粉床密度，并且保留了陶瓷粉体的高烧结活性。利用本发明制得的陶瓷颗粒作为原料使用粘结剂喷射设备制作坯体，进一步经脱脂、烧结，可得到具有高性能的粘接剂喷射陶瓷件。
Preparation of fused and re-fired ceramic particles and adhesive sprayed ceramic
The invention discloses preparation of fused and re-fired ceramic particles and adhesive sprayed ceramic, and relates to the technical field of additive manufacturing. According to the ceramic particles provided by the invention, a melting and re-sintering mode is adopted, ceramic powder with high sintering activity is selected and compounded with glass powder, low-temperature melting and sintering are performed after re-granulation, and the low-temperature sintering temperature is higher than the softening point temperature of glass and lower than the sintering temperature of the ceramic powder; the glass powder is promoted to melt and bond with the ceramic powder, and the particle volume is reduced, so that the ceramic particles with high density and high sphericity can be obtained; the prepared ceramic particles are very suitable for powder bed powder laying work of adhesive spraying equipment, the powder bed density is greatly improved, and the high sintering activity of ceramic powder is reserved. The ceramic particles prepared by the method are used as a raw material to manufacture a green body by using adhesive spraying equipment, and the green body is further degreased and sintered to obtain an adhesive spraying ceramic piece with high performance.
本发明公开了一种熔融复烧陶瓷颗粒及粘接剂喷射陶瓷的制备，涉及增材制造技术领域。本发明提供的陶瓷颗粒是采用熔融复烧的方式，选用具有高烧结活性的陶瓷粉体与玻璃粉体复配，经重新造粒后进行低温熔融烧结，所述低温烧结的温度高于玻璃的软化点温度且低于陶瓷粉体的烧结温度，促使玻璃粉体熔融粘结陶瓷粉体，减小颗粒体积，由此可获得具有高密度、高球形度的陶瓷颗粒；本发明制得的陶瓷颗粒非常适合粘接剂喷射设备的粉床铺粉工作，大大提高了粉床密度，并且保留了陶瓷粉体的高烧结活性。利用本发明制得的陶瓷颗粒作为原料使用粘结剂喷射设备制作坯体，进一步经脱脂、烧结，可得到具有高性能的粘接剂喷射陶瓷件。
Preparation of fused and re-fired ceramic particles and adhesive sprayed ceramic
一种熔融复烧陶瓷颗粒及粘接剂喷射陶瓷的制备
WU SHANGHUA (author) / LI JIANBIN (author)
2023-12-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
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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