Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production method of aluminum oxide special for 5G ceramics and aluminum oxide special for 5G ceramics
The invention relates to a production method of aluminum oxide special for 5G ceramics, and the production method of the aluminum oxide special for the 5G ceramics comprises the following steps: providing aluminum hydroxide with sodium oxide content not higher than 0.3%, and grinding and screening the aluminum hydroxide to obtain aluminum hydroxide particles with preset particle size; the aluminum hydroxide particles and a mineralizing agent are mixed to obtain a mixture, the mixture is calcined to obtain the aluminum oxide special for 5G ceramics, and the calcination comprises the following steps that the mixture is heated to 140-160 DEG C at a first temperature rising speed, and heat preservation is conducted for 50-70 min; the mixture is heated to 390-410 DEG C at a second temperature rising speed, and heat preservation is conducted for 50-70 min; the mixture is heated to 790-810 DEG C at a third temperature rising speed, and heat preservation is conducted for 50-70 min; and the mixture is heated to 1120-1140 DEG C at the temperature rising speed of 20-30 DEG C/h, and heat preservation is conducted for 7.5-8.5 h. The aluminum oxide special for 5G ceramics, which is low in impurity element content, low in original grain size and high in specific surface area, can be obtained.
本申请涉及一种5G陶瓷专用氧化铝的生产方法，所述5G陶瓷专用氧化铝的生产方法包括如下步骤：提供氧化钠含量不高于0.3％的氢氧化铝，对所述氢氧化铝进行磨制和筛分，获得具有预定粒径的氢氧化铝颗粒；将所述氢氧化铝颗粒与矿化剂混合，得到混合料，对所述混合料进行煅烧，得到所述5G陶瓷专用氧化铝，其中，所述煅烧包括如下步骤：以第一升温速度将所述混合料加热至140～160℃，并保温50～70min；以第二升温速度将所述混合料加热至390～410℃，并保温50～70min；以第三升温速度将所述混合料加热至790～810℃，并保温50～70min；以20～30℃/h的升温速度将所述混合料加热至1120～1140℃，并保温7.5～8.5h。本申请能够获得杂质元素含量低、原晶粒度低、比表面积高的5G陶瓷专用氧化铝。
Production method of aluminum oxide special for 5G ceramics and aluminum oxide special for 5G ceramics
The invention relates to a production method of aluminum oxide special for 5G ceramics, and the production method of the aluminum oxide special for the 5G ceramics comprises the following steps: providing aluminum hydroxide with sodium oxide content not higher than 0.3%, and grinding and screening the aluminum hydroxide to obtain aluminum hydroxide particles with preset particle size; the aluminum hydroxide particles and a mineralizing agent are mixed to obtain a mixture, the mixture is calcined to obtain the aluminum oxide special for 5G ceramics, and the calcination comprises the following steps that the mixture is heated to 140-160 DEG C at a first temperature rising speed, and heat preservation is conducted for 50-70 min; the mixture is heated to 390-410 DEG C at a second temperature rising speed, and heat preservation is conducted for 50-70 min; the mixture is heated to 790-810 DEG C at a third temperature rising speed, and heat preservation is conducted for 50-70 min; and the mixture is heated to 1120-1140 DEG C at the temperature rising speed of 20-30 DEG C/h, and heat preservation is conducted for 7.5-8.5 h. The aluminum oxide special for 5G ceramics, which is low in impurity element content, low in original grain size and high in specific surface area, can be obtained.
本申请涉及一种5G陶瓷专用氧化铝的生产方法，所述5G陶瓷专用氧化铝的生产方法包括如下步骤：提供氧化钠含量不高于0.3％的氢氧化铝，对所述氢氧化铝进行磨制和筛分，获得具有预定粒径的氢氧化铝颗粒；将所述氢氧化铝颗粒与矿化剂混合，得到混合料，对所述混合料进行煅烧，得到所述5G陶瓷专用氧化铝，其中，所述煅烧包括如下步骤：以第一升温速度将所述混合料加热至140～160℃，并保温50～70min；以第二升温速度将所述混合料加热至390～410℃，并保温50～70min；以第三升温速度将所述混合料加热至790～810℃，并保温50～70min；以20～30℃/h的升温速度将所述混合料加热至1120～1140℃，并保温7.5～8.5h。本申请能够获得杂质元素含量低、原晶粒度低、比表面积高的5G陶瓷专用氧化铝。
Production method of aluminum oxide special for 5G ceramics and aluminum oxide special for 5G ceramics
5G陶瓷专用氧化铝的生产方法、5G陶瓷专用氧化铝
YU JIANG (Autor:in) / CHEN CHANGHAO (Autor:in) / WANG JIANQIN (Autor:in) / LI BOWEN (Autor:in) / LIU XUEDONG (Autor:in) / ZHANG LIHUI (Autor:in) / LI XIAOJIAN (Autor:in) / LI HUA (Autor:in) / YU HAI (Autor:in)
22.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Aluminum oxide ceramics eyelet with long service life
| Europäisches Patentamt | 2015