Ceramic filter comprising a carbon coating and a method for manufacturing the same
AssigneeJinan Shengquan Group Share Holding Co., Ltd.
InventorsJianxun Zhu, Jinghao Liu, Shuli Shen
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Abstract
The present invention relates to a ceramic filter suitable for filtering molten metal, wherein said filter comprises a carbon coating and refractory materials bonded by ceramic binders, and said carbon coating is coated on the refractory materials which are bonded by ceramic binders. Furthermore, the present invention relates to the method for manufacturing said filter. The filter of the present invention has very high mechanical strength and stable quality, the preparation of which is more economic.
Claims20
A ceramic filter suitable for filtering molten metal, wherein said filter comprises a carbon coating and refractory materials bonded by ceramic binders, and said carbon coating is coated on the refractory materials which are bonded by ceramic binders.
A method for manufacturing a ceramic filter suitable for filtering molten metal, wherein said filter comprises a carbon coating and a refractory material bonded by a ceramic binder, and said carbon coating is coated on the refractory material bonded by a ceramic binder, comprising forming the mixture of refractory material and ceramic binder into a desired shape, and coating a carbon coating on the same.
A method for manufacturing a ceramic filter suitable for filtering molten metal, wherein said filter comprises carbon coating and refractory material bonded by a ceramic binder, and said carbon coating is coated on the refractory material bonded by a ceramic binder, characterized in that said method includes the following steps:
- (1) preparing a slurry comprising a refractory material, a ceramic binder and a liquid carrier;
- (2) coating the slurry prepared in step (1) onto a porous foam made from thermoplastic materials;
- (3) drying the coated foam obtained in step (2);
- (4) preparing a carbon coating;
- (5) applying the carbon coating prepared in step (4) onto the foam obtained in step (3), and drying the coated foam;
- (6) optionally, repeating step (5) once or more times;
- (7) performing sintering at a temperature of 600-1100° C. under oxygen-free atmosphere and/or reducing atmosphere.
Dependencies are inferred from the claim text.