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A platform for research: civil engineering, architecture and urbanism
Phosphorus-free impregnation method of graphite roller sleeve
The invention discloses a non-phosphorus impregnation method of a graphite roller sleeve, which comprises the following steps: 1, adding alpha alumina micro powder and a dispersing agent into silica sol serving as a matrix to form a non-phosphorus antioxidant impregnation liquid; 2, heating the non-phosphorus antioxidant impregnation liquid; 3, roughening the surface of the graphite roller sleeve, and heating the graphite roller sleeve; 4, vacuumizing the impregnation tank, then injecting a non-phosphorus antioxidant impregnation liquid, and pressurizing and impregnating the graphite roller sleeve through the non-phosphorus antioxidant impregnation liquid, so that silicon and aluminum oxide in the non-phosphorus antioxidant impregnation liquid are fully permeated into the graphite roller sleeve through the air holes, and an aluminum silicate antioxidant protective film is formed on the surface of the graphite roller sleeve; 5, taking out and cooling the graphite roller sleeve; 6, repeating the steps 2-4; 7, the graphite roller sleeve is taken out, the aluminum silicate anti-oxidation protection film is cured, and the aluminum silicate anti-oxidation protection film is evenly attached to the interiors and the surfaces of air holes of the graphite roller sleeve. The aluminum silicate anti-oxidation protective films can be uniformly attached to the surface of the graphite roller sleeve and the interiors of the air holes, and the high-temperature anti-oxidation performance of the graphite roller sleeve is improved.
本发明公开了一种石墨辊套的无磷浸渍方法，包括步骤：1、以硅溶胶为基体，加入α氧化铝微粉和分散剂，形成无磷抗氧化浸渍液；2、加热无磷抗氧化浸渍液；3、将石墨辊套表面毛化，并加热石墨辊套；4、将浸渍罐抽真空后注入无磷抗氧化浸渍液，并通过无磷抗氧化浸渍液加压浸渍石墨辊套，使无磷抗氧化浸渍液中的硅和氧化铝通过气孔充分渗入石墨辊套的内部，并在石墨辊套的表面形成硅酸铝抗氧化保护膜；5、取出并冷却石墨辊套；6、重复步骤2‑4；7、取出石墨辊套并固化硅酸铝抗氧化保护膜，石墨辊套气孔内部和表面均匀附着硅酸铝抗氧化保护膜。本发明能在石墨辊套的表面和气孔内部均匀附着硅酸铝抗氧化保护膜，提高石墨辊套的高温抗氧化性能。
Phosphorus-free impregnation method of graphite roller sleeve
The invention discloses a non-phosphorus impregnation method of a graphite roller sleeve, which comprises the following steps: 1, adding alpha alumina micro powder and a dispersing agent into silica sol serving as a matrix to form a non-phosphorus antioxidant impregnation liquid; 2, heating the non-phosphorus antioxidant impregnation liquid; 3, roughening the surface of the graphite roller sleeve, and heating the graphite roller sleeve; 4, vacuumizing the impregnation tank, then injecting a non-phosphorus antioxidant impregnation liquid, and pressurizing and impregnating the graphite roller sleeve through the non-phosphorus antioxidant impregnation liquid, so that silicon and aluminum oxide in the non-phosphorus antioxidant impregnation liquid are fully permeated into the graphite roller sleeve through the air holes, and an aluminum silicate antioxidant protective film is formed on the surface of the graphite roller sleeve; 5, taking out and cooling the graphite roller sleeve; 6, repeating the steps 2-4; 7, the graphite roller sleeve is taken out, the aluminum silicate anti-oxidation protection film is cured, and the aluminum silicate anti-oxidation protection film is evenly attached to the interiors and the surfaces of air holes of the graphite roller sleeve. The aluminum silicate anti-oxidation protective films can be uniformly attached to the surface of the graphite roller sleeve and the interiors of the air holes, and the high-temperature anti-oxidation performance of the graphite roller sleeve is improved.
本发明公开了一种石墨辊套的无磷浸渍方法，包括步骤：1、以硅溶胶为基体，加入α氧化铝微粉和分散剂，形成无磷抗氧化浸渍液；2、加热无磷抗氧化浸渍液；3、将石墨辊套表面毛化，并加热石墨辊套；4、将浸渍罐抽真空后注入无磷抗氧化浸渍液，并通过无磷抗氧化浸渍液加压浸渍石墨辊套，使无磷抗氧化浸渍液中的硅和氧化铝通过气孔充分渗入石墨辊套的内部，并在石墨辊套的表面形成硅酸铝抗氧化保护膜；5、取出并冷却石墨辊套；6、重复步骤2‑4；7、取出石墨辊套并固化硅酸铝抗氧化保护膜，石墨辊套气孔内部和表面均匀附着硅酸铝抗氧化保护膜。本发明能在石墨辊套的表面和气孔内部均匀附着硅酸铝抗氧化保护膜，提高石墨辊套的高温抗氧化性能。
Phosphorus-free impregnation method of graphite roller sleeve
石墨辊套的无磷浸渍方法
ZHU WENJUN (author) / FU SIRONG (author) / JIANG HUA (author)
2023-07-21
Patent
Electronic Resource
Chinese
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