A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to an aluminum oxide ceramic production process specifically comprising the following steps: 1) weighing the following raw materials in parts by weight: weighing 120-160 parts ofaluminum oxide powder, 30-40 parts of magnesium oxide, 20-24 parts of nano silicon dioxide, 10-12 parts of mica powder, 5-10 parts of a dispersing agent, 5-10 parts of a sintering aid, 1-2 parts of acrystal inhibitor, 5-10 parts of a plasticizer and 5-10 parts of a defoaming agent; 2) carrying out primary ball milling; 3) carrying out secondary ball milling; 4) carrying out spray granulation; 6)preparing a blank: performing isostatic cool pressing on an aluminum oxide ceramic prefabricated part to obtain an aluminum oxide ceramic blank; and 7) sintering: sintering the aluminum oxide ceramicblank in a tunnel kiln to obtain an aluminum oxide ceramic finished product. The method has the advantages that the process is simple, popularization is convenient, the method can be used for producing the aluminum oxide ceramic which is high in toughness and capable of meeting the practical requirement, the ceramic is high in bending resistance and good in fracture toughness, and the ceramic quality can be effectively improved.
本发明涉及一种氧化铝陶瓷生产工艺，具体包括以下步骤：1)按照重量份称取原料：称取氧化铝粉120‑160份、氧化镁30‑40份、纳米二氧化硅20‑24份、云母粉10‑12份、分散剂5‑10份、助烧结剂5‑10份、晶体抑制剂1‑2份、塑化剂5‑10份、消泡剂5‑10份。2)一次球磨；3)二次球磨；4)喷雾造粒；6)制坯：将氧化铝陶瓷预制件经冷等静压处得氧化铝陶瓷坯件；7)烧结：在隧道窑炉中将氧化铝陶瓷坯件烧结得氧化铝陶瓷成品。本发明优点在于：工艺简单，方便推广，可以用于生产韧性强的可满足实用需要的氧化铝陶瓷，陶瓷抗弯能力强，且断裂韧性较好，能有效提高陶瓷质量。
The invention relates to an aluminum oxide ceramic production process specifically comprising the following steps: 1) weighing the following raw materials in parts by weight: weighing 120-160 parts ofaluminum oxide powder, 30-40 parts of magnesium oxide, 20-24 parts of nano silicon dioxide, 10-12 parts of mica powder, 5-10 parts of a dispersing agent, 5-10 parts of a sintering aid, 1-2 parts of acrystal inhibitor, 5-10 parts of a plasticizer and 5-10 parts of a defoaming agent; 2) carrying out primary ball milling; 3) carrying out secondary ball milling; 4) carrying out spray granulation; 6)preparing a blank: performing isostatic cool pressing on an aluminum oxide ceramic prefabricated part to obtain an aluminum oxide ceramic blank; and 7) sintering: sintering the aluminum oxide ceramicblank in a tunnel kiln to obtain an aluminum oxide ceramic finished product. The method has the advantages that the process is simple, popularization is convenient, the method can be used for producing the aluminum oxide ceramic which is high in toughness and capable of meeting the practical requirement, the ceramic is high in bending resistance and good in fracture toughness, and the ceramic quality can be effectively improved.
本发明涉及一种氧化铝陶瓷生产工艺，具体包括以下步骤：1)按照重量份称取原料：称取氧化铝粉120‑160份、氧化镁30‑40份、纳米二氧化硅20‑24份、云母粉10‑12份、分散剂5‑10份、助烧结剂5‑10份、晶体抑制剂1‑2份、塑化剂5‑10份、消泡剂5‑10份。2)一次球磨；3)二次球磨；4)喷雾造粒；6)制坯：将氧化铝陶瓷预制件经冷等静压处得氧化铝陶瓷坯件；7)烧结：在隧道窑炉中将氧化铝陶瓷坯件烧结得氧化铝陶瓷成品。本发明优点在于：工艺简单，方便推广，可以用于生产韧性强的可满足实用需要的氧化铝陶瓷，陶瓷抗弯能力强，且断裂韧性较好，能有效提高陶瓷质量。
Aluminum oxide ceramic production process
一种氧化铝陶瓷生产工艺
TIAN WEIMING (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Production process of high-hardness aluminum oxide ceramic
| European Patent Office | 2024
| European Patent Office | 2020