Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of wear-resistant graphite sealing material with high environmental adaptability
The invention discloses a preparation method of a wear-resistant graphite sealing material with high environmental adaptability, and belongs to the technical field of inorganic nonmetal graphite sealing materials. The problems that an existing graphite sealing ring is complex in preparation process and not high in adaptability and abrasion resistance are solved. According to the invention, ultra-fine powder (D50 = 5 [mu]m) is adopted as a main raw material, and an asphalt and furan resin composite impregnation process is adopted, so that the sealing property and high-temperature wear resistance of the material are improved, and meanwhile, the material has relatively high lubricity. Isostatic pressing is adopted to improve the materiel micro-structure, the anisotropy ratio of traditional pressing forming is reduced to 1.05: 1, and the wear resistance is improved. The roasting process provided by the invention is beneficial to improving the yield and reducing the porosity, and the obtained graphite matrix has high volume density, high graphitization degree and high Shore hardness.
本发明公开了一种高环境适应性耐磨石墨密封材料的制备方法，属于无机非金属石墨密封材料技术领域。本发明解决了现有石墨密封环制备工艺复杂且适应性耐磨性能不高的问题。本发明采用超细粉(D50＝5μm)作为主要原材料，采用沥青和呋喃树脂复合浸渍工艺，提高材料密封性及抗高温磨损性能的同时，具有较高的润滑性。并且采用等静压成型改善材料微观结构，降低传统压制成型具有的各向异性比(降低至1.05:1)，提高耐磨性能。并且本申请提供的焙烧工艺有助于提高成品率，并降低了气孔率，获得的石墨基体具有高体积密度，高石墨化度和高的肖氏硬度。
Preparation method of wear-resistant graphite sealing material with high environmental adaptability
The invention discloses a preparation method of a wear-resistant graphite sealing material with high environmental adaptability, and belongs to the technical field of inorganic nonmetal graphite sealing materials. The problems that an existing graphite sealing ring is complex in preparation process and not high in adaptability and abrasion resistance are solved. According to the invention, ultra-fine powder (D50 = 5 [mu]m) is adopted as a main raw material, and an asphalt and furan resin composite impregnation process is adopted, so that the sealing property and high-temperature wear resistance of the material are improved, and meanwhile, the material has relatively high lubricity. Isostatic pressing is adopted to improve the materiel micro-structure, the anisotropy ratio of traditional pressing forming is reduced to 1.05: 1, and the wear resistance is improved. The roasting process provided by the invention is beneficial to improving the yield and reducing the porosity, and the obtained graphite matrix has high volume density, high graphitization degree and high Shore hardness.
本发明公开了一种高环境适应性耐磨石墨密封材料的制备方法，属于无机非金属石墨密封材料技术领域。本发明解决了现有石墨密封环制备工艺复杂且适应性耐磨性能不高的问题。本发明采用超细粉(D50＝5μm)作为主要原材料，采用沥青和呋喃树脂复合浸渍工艺，提高材料密封性及抗高温磨损性能的同时，具有较高的润滑性。并且采用等静压成型改善材料微观结构，降低传统压制成型具有的各向异性比(降低至1.05:1)，提高耐磨性能。并且本申请提供的焙烧工艺有助于提高成品率，并降低了气孔率，获得的石墨基体具有高体积密度，高石墨化度和高的肖氏硬度。
Preparation method of wear-resistant graphite sealing material with high environmental adaptability
一种高环境适应性耐磨石墨密封材料的制备方法
MA QINGCHUN (Autor:in) / DENG FANJUN (Autor:in) / YIN JINGFENG (Autor:in) / QU CHUNYU (Autor:in) / JIA MUYUE (Autor:in)
08.02.2022
Patent
Elektronische Ressource
Chinesisch
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