Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alumina ceramic arm and preparation method thereof
The invention discloses an alumina ceramic arm and a preparation method thereof.The preparation method comprises the steps that pseudo-boehmite and water are mixed and subjected to ball milling, obtained suspension liquid is stirred and heated, dilute nitric acid is dropwise added, stirring is conducted till the suspension liquid is converted into solid gel, boehmite gel is obtained, alumina powder, the boehmite gel and hydroxyethyl cellulose are prepared into extrusion pug, and the alumina ceramic arm is obtained. The preparation method comprises the following steps: preparing a water-soluble PVA consumable into a water-soluble PVA mold core in an air passage shape by adopting FDM-3D printing, clamping the mold core between two first wet blanks, pressurizing and laminating to obtain a second wet blank, drying and roughly machining to obtain a biscuit, sintering to obtain a ceramic arm blank with an air passage, and precisely machining and polishing to obtain the ceramic arm. The method provided by the invention is beneficial to preparation of a large-size integrally formed arm, and the prepared ceramic arm has the advantages of good mechanical properties, strong wear and corrosion resistance, low friction coefficient, long service life and the like, and can be used in severe environments such as high temperature and corrosion.
本发明公开了一种氧化铝陶瓷手臂及其制备方法，该制备方法包括将拟薄水铝石与水混合球磨，将所得悬浮液搅拌升温，滴入稀硝酸，搅拌至转变为固态凝胶，得勃姆石凝胶，将氧化铝粉、勃姆石凝胶和羟乙基纤维素制成挤出泥料，真空练泥成第一湿坯，采用FDM‑3D打印将水溶性PVA耗材制备成气道形状的水溶性PVA型芯，将型芯夹设于两块第一湿坯中间加压使贴合，得到第二湿坯，干燥、粗加工得素坯，经烧结得具有气道的陶瓷手臂毛坯，经精密加工和抛光，得到陶瓷手臂。本发明提供的方法有利于制备大尺寸一体成型手臂，且制得的陶瓷手臂力学性能好、耐磨耐腐蚀性能强、摩擦系数低、可在高温、腐蚀等苛刻环境中使用、且使用寿命长等优点。
Alumina ceramic arm and preparation method thereof
The invention discloses an alumina ceramic arm and a preparation method thereof.The preparation method comprises the steps that pseudo-boehmite and water are mixed and subjected to ball milling, obtained suspension liquid is stirred and heated, dilute nitric acid is dropwise added, stirring is conducted till the suspension liquid is converted into solid gel, boehmite gel is obtained, alumina powder, the boehmite gel and hydroxyethyl cellulose are prepared into extrusion pug, and the alumina ceramic arm is obtained. The preparation method comprises the following steps: preparing a water-soluble PVA consumable into a water-soluble PVA mold core in an air passage shape by adopting FDM-3D printing, clamping the mold core between two first wet blanks, pressurizing and laminating to obtain a second wet blank, drying and roughly machining to obtain a biscuit, sintering to obtain a ceramic arm blank with an air passage, and precisely machining and polishing to obtain the ceramic arm. The method provided by the invention is beneficial to preparation of a large-size integrally formed arm, and the prepared ceramic arm has the advantages of good mechanical properties, strong wear and corrosion resistance, low friction coefficient, long service life and the like, and can be used in severe environments such as high temperature and corrosion.
本发明公开了一种氧化铝陶瓷手臂及其制备方法，该制备方法包括将拟薄水铝石与水混合球磨，将所得悬浮液搅拌升温，滴入稀硝酸，搅拌至转变为固态凝胶，得勃姆石凝胶，将氧化铝粉、勃姆石凝胶和羟乙基纤维素制成挤出泥料，真空练泥成第一湿坯，采用FDM‑3D打印将水溶性PVA耗材制备成气道形状的水溶性PVA型芯，将型芯夹设于两块第一湿坯中间加压使贴合，得到第二湿坯，干燥、粗加工得素坯，经烧结得具有气道的陶瓷手臂毛坯，经精密加工和抛光，得到陶瓷手臂。本发明提供的方法有利于制备大尺寸一体成型手臂，且制得的陶瓷手臂力学性能好、耐磨耐腐蚀性能强、摩擦系数低、可在高温、腐蚀等苛刻环境中使用、且使用寿命长等优点。
Alumina ceramic arm and preparation method thereof
氧化铝陶瓷手臂及其制备方法
CHEN WENBIN (Autor:in)
02.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B25J
Manipulatoren
,
MANIPULATORS
/
B29C
Formen oder Verbinden von Kunststoffen
,
SHAPING OR JOINING OF PLASTICS
/
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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