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Surface treatment method for improving corrosion resistance and wear resistance of silicon carbide brick
The invention discloses a surface treatment method for improving corrosion resistance and wear resistance of a silicon carbide brick. The surface treatment method comprises the following steps: (1) dipping in a protective solvent; (2) heating and drying; (3) dipping the plugging suspension liquid; (4) drying and plugging suspension liquid dipping are repeated; (5) drying is performed; and (6) firing. According to the invention, through the adsorption effect of the silicon carbide brick on the plugging suspension and the secondary firing process, air holes in the surface layer of the working surface of the silicon carbide brick are plugged by particles in the plugging suspension in a vacuumizing manner, so that channels for external gas to enter the brick body are reduced, and the erosion resistance of the material is improved; and the surface treatment method does not affect the porosity in the brick body, and does not affect the thermal shock resistance of the material. Compared with an existing method for enhancing the erosion resistance of the brick body through a coating method, the method overcomes the defects that in the prior art, an adopted coating is insufficient in strength and prone to falling into pieces, and the construction technology is complex.
本发明公开了一种提高碳化硅砖耐侵蚀性和耐磨性的表面处理方法，包括以下步骤：(1)保护性溶剂浸渍；(2)加热烘干；(3)封堵悬浮液浸渍；(4)重复烘干和封堵悬浮液浸渍：(5)干燥；(6)烧成。本发明通过碳化硅砖对封堵悬浮液的吸附作用，以及二次烧成工艺，通过抽真空的方式使封堵悬浮液中的颗粒物堵住碳化硅砖工作面表层的气孔，减少外部气体进入砖体内部的通道，提高材料的耐侵蚀性能；并且本发明表面处理方法，不会影响到砖体内部的气孔率，对材料抗热震性能没有影响。相较于现有的通过涂层手段增强砖体耐侵蚀性能，本发明解决了现有技术中采用的涂层强度不够，容易成片掉落以及施工工艺复杂的弊端。
Surface treatment method for improving corrosion resistance and wear resistance of silicon carbide brick
The invention discloses a surface treatment method for improving corrosion resistance and wear resistance of a silicon carbide brick. The surface treatment method comprises the following steps: (1) dipping in a protective solvent; (2) heating and drying; (3) dipping the plugging suspension liquid; (4) drying and plugging suspension liquid dipping are repeated; (5) drying is performed; and (6) firing. According to the invention, through the adsorption effect of the silicon carbide brick on the plugging suspension and the secondary firing process, air holes in the surface layer of the working surface of the silicon carbide brick are plugged by particles in the plugging suspension in a vacuumizing manner, so that channels for external gas to enter the brick body are reduced, and the erosion resistance of the material is improved; and the surface treatment method does not affect the porosity in the brick body, and does not affect the thermal shock resistance of the material. Compared with an existing method for enhancing the erosion resistance of the brick body through a coating method, the method overcomes the defects that in the prior art, an adopted coating is insufficient in strength and prone to falling into pieces, and the construction technology is complex.
本发明公开了一种提高碳化硅砖耐侵蚀性和耐磨性的表面处理方法，包括以下步骤：(1)保护性溶剂浸渍；(2)加热烘干；(3)封堵悬浮液浸渍；(4)重复烘干和封堵悬浮液浸渍：(5)干燥；(6)烧成。本发明通过碳化硅砖对封堵悬浮液的吸附作用，以及二次烧成工艺，通过抽真空的方式使封堵悬浮液中的颗粒物堵住碳化硅砖工作面表层的气孔，减少外部气体进入砖体内部的通道，提高材料的耐侵蚀性能；并且本发明表面处理方法，不会影响到砖体内部的气孔率，对材料抗热震性能没有影响。相较于现有的通过涂层手段增强砖体耐侵蚀性能，本发明解决了现有技术中采用的涂层强度不够，容易成片掉落以及施工工艺复杂的弊端。
Surface treatment method for improving corrosion resistance and wear resistance of silicon carbide brick
一种提高碳化硅砖耐侵蚀性和耐磨性的表面处理方法
SHI HANG (author) / LU GUOFENG (author) / DONG LIANGJUN (author) / CHENG XI (author)
2024-03-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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