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Preparation method of ceramic waveguide filter green body
The invention discloses a preparation method of a ceramic waveguide filter green body, and belongs to the field of ceramic waveguide filter forming and manufacturing processes. The technical problems that a traditional filter is long in manufacturing period and complex in process, and cracks are prone to being generated on the surface of a biscuit in the gel-casting forming process are solved. The preparation method comprises the following steps: weighing a ceramic raw material, and performing impurity removal pretreatment to obtain powder; adding a dispersing agent into the epoxy resin solution, then adding powder, and carrying out ball milling to obtain slurry; printing raw materials of each printing layer are arranged, and a mold with heat conductivity in gradient distribution in the height direction is obtained through printing of a 3D printer; injecting the slurry into a mold for molding; demolding after curing to obtain a biscuit; cleaning, degumming and sintering the biscuit to obtain a ceramic waveguide filter green body; the method has the beneficial effects that the temperature difference of the green body from bottom to top is accurately controlled through 3D printing of the mold with heat conductivity in gradient distribution in the height direction, the defect that cracks are generated on the surface of the green body when a wet green body is dried is effectively overcome, and the green body uniform in shrinkage and smooth in surface is obtained.
本发明公开了一种陶瓷波导滤波器坯体的制备方法，属于陶瓷波导滤波器成型和制造工艺领域。解决了传统滤波器制造周期长，工艺复杂，凝胶注模成型过程中素坯表面易产生裂纹的技术问题。该制备方法为将陶瓷原料称量后除杂预处理，得到粉体；在环氧树脂溶液中加入分散剂，后加入粉体，球磨得到浆料；设置每个打印层的打印原料，在3D打印机打印得到高度方向热导率梯度分布的模具；浆料注入模具中成型；固化后脱模得到素坯；素坯经清洗、排胶烧结，得到陶瓷波导滤波器坯体。有益效果为：通过3D打印高度方向热导率梯度分布的模具，精确控制坯体自底部而上的温差，有效克服湿坯干燥时坯体表面产生裂纹的缺点，得到收缩均匀，表面光滑的坯体。
Preparation method of ceramic waveguide filter green body
The invention discloses a preparation method of a ceramic waveguide filter green body, and belongs to the field of ceramic waveguide filter forming and manufacturing processes. The technical problems that a traditional filter is long in manufacturing period and complex in process, and cracks are prone to being generated on the surface of a biscuit in the gel-casting forming process are solved. The preparation method comprises the following steps: weighing a ceramic raw material, and performing impurity removal pretreatment to obtain powder; adding a dispersing agent into the epoxy resin solution, then adding powder, and carrying out ball milling to obtain slurry; printing raw materials of each printing layer are arranged, and a mold with heat conductivity in gradient distribution in the height direction is obtained through printing of a 3D printer; injecting the slurry into a mold for molding; demolding after curing to obtain a biscuit; cleaning, degumming and sintering the biscuit to obtain a ceramic waveguide filter green body; the method has the beneficial effects that the temperature difference of the green body from bottom to top is accurately controlled through 3D printing of the mold with heat conductivity in gradient distribution in the height direction, the defect that cracks are generated on the surface of the green body when a wet green body is dried is effectively overcome, and the green body uniform in shrinkage and smooth in surface is obtained.
本发明公开了一种陶瓷波导滤波器坯体的制备方法，属于陶瓷波导滤波器成型和制造工艺领域。解决了传统滤波器制造周期长，工艺复杂，凝胶注模成型过程中素坯表面易产生裂纹的技术问题。该制备方法为将陶瓷原料称量后除杂预处理，得到粉体；在环氧树脂溶液中加入分散剂，后加入粉体，球磨得到浆料；设置每个打印层的打印原料，在3D打印机打印得到高度方向热导率梯度分布的模具；浆料注入模具中成型；固化后脱模得到素坯；素坯经清洗、排胶烧结，得到陶瓷波导滤波器坯体。有益效果为：通过3D打印高度方向热导率梯度分布的模具，精确控制坯体自底部而上的温差，有效克服湿坯干燥时坯体表面产生裂纹的缺点，得到收缩均匀，表面光滑的坯体。
Preparation method of ceramic waveguide filter green body
一种陶瓷波导滤波器坯体的制备方法
YAO QING (author) / GUO BAOLIN (author) / LI XIAOKANG (author) / WU YIWEN (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
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
/
C04B
Kalk
,
LIME
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