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Preparation method of zirconium oxide-mullite complex-phase porous high-strength refractory block
According to the invention, a preparation method includes: by using kaolin and alumina powder are used as raw materials, preparing a refractory block matrix is prepared through 3D printing molding, and the subjecting the matrix to one-time sintering after being dried; and then immersing the matrix into the zirconia sol in vacuum equipment, and drying the matrix after the matrix is fully immersed by the zirconia gel; and carrying out secondary firing on the dried matrix to obtain the zirconium oxide mullite complex-phase porous high-strength refractory block. Due to the fact that the 3D printing technology is adopted for forming, the size and distribution of air holes can be designed. The zirconia sol infiltration matrix sintering process is adopted, so that the sintering of the refractoryblock is promoted, and the strength of the block is improved. Through reasonable compounding of mullite zirconium oxide fireproof compositions, the fireproof performance and the use performance are greatly improved.
本发明以高岭土、氧化铝粉为原料，经3D打印成型，制备耐火块体基体，在基体干燥后对基体进行一次烧成。随后在真空设备中将基体浸入氧化锆溶胶中，在基体充分被氧化锆凝胶浸入后对其进行干燥。对干燥后的基体进行二次烧成，便可得到氧化锆‑莫来石复相多孔高强耐火块体。本发明方法由于采用3D打印技术成型，可设计气孔大小和分布。采用氧化锆溶胶浸渗基体烧成工艺，促进了耐火块体的烧结，使块体的强度得到提高。通过莫来石‑氧化锆耐火组成合理复配，大大地提高了耐火性能和使用性能。
Preparation method of zirconium oxide-mullite complex-phase porous high-strength refractory block
According to the invention, a preparation method includes: by using kaolin and alumina powder are used as raw materials, preparing a refractory block matrix is prepared through 3D printing molding, and the subjecting the matrix to one-time sintering after being dried; and then immersing the matrix into the zirconia sol in vacuum equipment, and drying the matrix after the matrix is fully immersed by the zirconia gel; and carrying out secondary firing on the dried matrix to obtain the zirconium oxide mullite complex-phase porous high-strength refractory block. Due to the fact that the 3D printing technology is adopted for forming, the size and distribution of air holes can be designed. The zirconia sol infiltration matrix sintering process is adopted, so that the sintering of the refractoryblock is promoted, and the strength of the block is improved. Through reasonable compounding of mullite zirconium oxide fireproof compositions, the fireproof performance and the use performance are greatly improved.
本发明以高岭土、氧化铝粉为原料，经3D打印成型，制备耐火块体基体，在基体干燥后对基体进行一次烧成。随后在真空设备中将基体浸入氧化锆溶胶中，在基体充分被氧化锆凝胶浸入后对其进行干燥。对干燥后的基体进行二次烧成，便可得到氧化锆‑莫来石复相多孔高强耐火块体。本发明方法由于采用3D打印技术成型，可设计气孔大小和分布。采用氧化锆溶胶浸渗基体烧成工艺，促进了耐火块体的烧结，使块体的强度得到提高。通过莫来石‑氧化锆耐火组成合理复配，大大地提高了耐火性能和使用性能。
Preparation method of zirconium oxide-mullite complex-phase porous high-strength refractory block
一种氧化锆-莫来石复相多孔高强耐火块体的制备方法
LUO XUDONG (Autor:in) / MAN YIRAN (Autor:in) / HOU QINGDONG (Autor:in)
09.02.2021
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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