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A platform for research: civil engineering, architecture and urbanism
Super-large-size special ceramic pipe fitting and preparation process thereof
The invention relates to a formula and a preparation process of an oversized special ceramic pipe fitting. The raw materials comprise high-purity alumina micro powder, high-purity quartz powder, yttrium oxide, magnesium oxide, a binder and a dispersant. The preparation process comprises the following steps: burdening, ball-milling, stirring slurry, granulating, carrying out compression molding, turning a blank, and sintering by adopting a shuttle kiln. And finally performing cold processing to obtain a finished product. The raw materials of the ceramic pipe fitting are high-purity raw materials, and the raw material granularity of the micro-powder level is adopted; raw material selection and formula design are different from those in the prior art. Specific heating and cooling curves are adopted, the firing rate of the product is guaranteed, and the product quality is improved. The bending strength, the fracture toughness, the compression strength, the bending strength and other performance indexes of the product are excellent, and particularly, the average value of the compression strength reaches 2210 Mpa and greatly exceeds that of an existing product. The product can be used for wear-resistant parts of large-scale equipment, insulating sleeves, pressure equipment connecting pipes, petroleum conveying pipelines, high-temperature and high-pressure equipment, high-temperature equipment application platforms and the like.
本发明涉及一种超大尺寸特种陶瓷管件配方及制备工艺；原料采用高纯氧化铝微粉、高纯石英粉、氧化钇、氧化镁、粘结剂、分散剂。制备工艺包括配料、球磨、搅拌浆料、造粒、压制成型，车坯后采用梭式窑烧成；最后经冷加工制成成品。本发明的陶瓷管件原料采用高纯原料，并采用微粉级的原料粒度；从原料选取、配方设计都不同于现有技术。本发明采用特定的升温和降温曲线，保证了产品的烧成率，提高了产品质量。本发明产品的抗弯强度、断裂韧性、耐压强度、弯曲强度等性能指标优良，特别是耐压强度平均值达2210Mpa，大大超过现有产品。该产品可用于大型设备的耐磨部件、绝缘套、压力设备连接管、石油输送管道、高温高压设备及高温装备应用平台等。
Super-large-size special ceramic pipe fitting and preparation process thereof
The invention relates to a formula and a preparation process of an oversized special ceramic pipe fitting. The raw materials comprise high-purity alumina micro powder, high-purity quartz powder, yttrium oxide, magnesium oxide, a binder and a dispersant. The preparation process comprises the following steps: burdening, ball-milling, stirring slurry, granulating, carrying out compression molding, turning a blank, and sintering by adopting a shuttle kiln. And finally performing cold processing to obtain a finished product. The raw materials of the ceramic pipe fitting are high-purity raw materials, and the raw material granularity of the micro-powder level is adopted; raw material selection and formula design are different from those in the prior art. Specific heating and cooling curves are adopted, the firing rate of the product is guaranteed, and the product quality is improved. The bending strength, the fracture toughness, the compression strength, the bending strength and other performance indexes of the product are excellent, and particularly, the average value of the compression strength reaches 2210 Mpa and greatly exceeds that of an existing product. The product can be used for wear-resistant parts of large-scale equipment, insulating sleeves, pressure equipment connecting pipes, petroleum conveying pipelines, high-temperature and high-pressure equipment, high-temperature equipment application platforms and the like.
本发明涉及一种超大尺寸特种陶瓷管件配方及制备工艺；原料采用高纯氧化铝微粉、高纯石英粉、氧化钇、氧化镁、粘结剂、分散剂。制备工艺包括配料、球磨、搅拌浆料、造粒、压制成型，车坯后采用梭式窑烧成；最后经冷加工制成成品。本发明的陶瓷管件原料采用高纯原料，并采用微粉级的原料粒度；从原料选取、配方设计都不同于现有技术。本发明采用特定的升温和降温曲线，保证了产品的烧成率，提高了产品质量。本发明产品的抗弯强度、断裂韧性、耐压强度、弯曲强度等性能指标优良，特别是耐压强度平均值达2210Mpa，大大超过现有产品。该产品可用于大型设备的耐磨部件、绝缘套、压力设备连接管、石油输送管道、高温高压设备及高温装备应用平台等。
Super-large-size special ceramic pipe fitting and preparation process thereof
超大尺寸特种陶瓷管件及制备工艺
QUAN JIALE (author) / QUAN JIANJUN (author)
2023-09-05
Patent
Electronic Resource
Chinese
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