Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-precision aluminum oxide ceramic injection molding process
The invention relates to the technical field of ceramic materials, in particular to a high-precision aluminum oxide ceramic injection molding process which comprises the following steps: (1) powder preparation: putting aluminum oxide raw powder into a ball milling tank, then adding aluminum oxide grinding balls, carrying out ball milling, carrying out spray granulation on the ball-milled powder, and then sieving the powder obtained by spray granulation to obtain powder; standby powder is obtained; (2) internal mixing and feeding: adding the standby powder into an internal mixer, then adding an organic binder, performing internal mixing, cooling and crushing the material obtained after internal mixing, and performing high-pressure injection and cooling through an injection molding machine to obtain a feed; (3) injection molding: injecting the feed into a mold through an injection molding machine to obtain a ceramic green body; (4) thermal degreasing: putting the ceramic green body into a closed sagger with a hole in the top, putting the closed sagger into a rubber discharging furnace, and discharging rubber to obtain a green body; and (5) sintering. Compared with the prior art, the diameter deformation of the aluminum oxide ceramic product is as low as 0.02 mm.
本发明涉及陶瓷材料技术领域，具体涉及一种高精密氧化铝陶瓷注塑工艺，该注塑工艺包括以下步骤：(1)：粉料制备：取氧化铝原粉放入球磨罐中，然后加入氧化铝研磨球，进行球磨，将球磨后的粉料喷雾造粒，然后将喷雾造粒得到的粉体过筛，得到备用粉体；(2)：密炼喂料：取备用粉体加入密炼机中，然后加入有机粘结剂，进行密炼，密炼后所得物料经冷却破碎，再通过注塑机高压注射、冷却获得喂料；(3)：注射成型：将喂料通过注塑机注射到模具中，获得陶瓷生坯；(4)：热脱脂：将陶瓷生坯放入顶部带孔洞的封闭式匣钵，放入排胶炉中，进行排胶，获得坯体；(5)：烧结。与现有技术相比，本发明氧化铝陶瓷产品的直径变形量低至0.02mm。
High-precision aluminum oxide ceramic injection molding process
The invention relates to the technical field of ceramic materials, in particular to a high-precision aluminum oxide ceramic injection molding process which comprises the following steps: (1) powder preparation: putting aluminum oxide raw powder into a ball milling tank, then adding aluminum oxide grinding balls, carrying out ball milling, carrying out spray granulation on the ball-milled powder, and then sieving the powder obtained by spray granulation to obtain powder; standby powder is obtained; (2) internal mixing and feeding: adding the standby powder into an internal mixer, then adding an organic binder, performing internal mixing, cooling and crushing the material obtained after internal mixing, and performing high-pressure injection and cooling through an injection molding machine to obtain a feed; (3) injection molding: injecting the feed into a mold through an injection molding machine to obtain a ceramic green body; (4) thermal degreasing: putting the ceramic green body into a closed sagger with a hole in the top, putting the closed sagger into a rubber discharging furnace, and discharging rubber to obtain a green body; and (5) sintering. Compared with the prior art, the diameter deformation of the aluminum oxide ceramic product is as low as 0.02 mm.
本发明涉及陶瓷材料技术领域，具体涉及一种高精密氧化铝陶瓷注塑工艺，该注塑工艺包括以下步骤：(1)：粉料制备：取氧化铝原粉放入球磨罐中，然后加入氧化铝研磨球，进行球磨，将球磨后的粉料喷雾造粒，然后将喷雾造粒得到的粉体过筛，得到备用粉体；(2)：密炼喂料：取备用粉体加入密炼机中，然后加入有机粘结剂，进行密炼，密炼后所得物料经冷却破碎，再通过注塑机高压注射、冷却获得喂料；(3)：注射成型：将喂料通过注塑机注射到模具中，获得陶瓷生坯；(4)：热脱脂：将陶瓷生坯放入顶部带孔洞的封闭式匣钵，放入排胶炉中，进行排胶，获得坯体；(5)：烧结。与现有技术相比，本发明氧化铝陶瓷产品的直径变形量低至0.02mm。
High-precision aluminum oxide ceramic injection molding process
一种高精密氧化铝陶瓷注塑工艺
HU HAO (Autor:in) / XIE ZHIPENG (Autor:in) / YANG XUQIANG (Autor:in) / LI ZHENGCHUANG (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
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
/
B02C
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL
,
Brechen, Pulverisieren oder Zerkleinern allgemein
/
C04B
Kalk
,
LIME
Injection molding aluminum oxide ceramic material and injection molding method thereof
| Europäisches Patentamt | 2022
Feed for aluminum oxide injection molding, aluminum oxide ceramic and preparation method
| Europäisches Patentamt | 2021
High-solid-content nano aluminum oxide ceramic feed and feed injection molding method
| Europäisches Patentamt | 2024
Injection Molding of Oxide Ceramic with High Performance
| British Library Online Contents | 2005