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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of silicon-based ceramic core with controllable room temperature-high temperature strength
The invention provides a preparation method of a silicon-based ceramic core with controllable room temperature-high temperature strength, which comprises the following steps: mixing a quartz matrix and a mineralization modifier to obtain a silicon-based composite material, mixing the silicon-based composite material with a low-temperature impregnant, carrying out ball milling, drying and sieving to obtain modified silicon-based powder, mixing the modified silicon-based powder with a plasticizer to obtain ceramic slurry, and carrying out hot pressing injection to obtain the silicon-based ceramic core with controllable room temperature-high temperature strength. The preparation method comprises the following steps: preparing a ceramic core blank, sequentially carrying out degumming and sintering to obtain a silicon-based ceramic core, soaking the silicon-based ceramic core in a high-temperature impregnant, and drying to obtain the silicon-based ceramic core with controllable room temperature-high temperature strength. The performance stability of the silicon-based ceramic core can be improved, and the casting success rate is increased.
本发明提供了一种具有可控室温‑高温强度的硅基陶瓷型芯的制备方法，该方法为：将石英基体和矿化改性剂混合，得到硅基复合材料，与低温浸渍剂混合、球磨、干燥、过筛后，得到改性硅基粉体，再与增塑剂混合，得到陶瓷浆料，经热压注，得到陶瓷型芯坯体，依次进行排胶、烧结后，得到硅基陶瓷型芯，在高温浸渍剂中浸泡后干燥，得到具有可控室温‑高温强度的硅基陶瓷型芯。本发明能够提高硅基陶瓷型芯的性能稳定性，提高铸造成功率。
Preparation method of silicon-based ceramic core with controllable room temperature-high temperature strength
The invention provides a preparation method of a silicon-based ceramic core with controllable room temperature-high temperature strength, which comprises the following steps: mixing a quartz matrix and a mineralization modifier to obtain a silicon-based composite material, mixing the silicon-based composite material with a low-temperature impregnant, carrying out ball milling, drying and sieving to obtain modified silicon-based powder, mixing the modified silicon-based powder with a plasticizer to obtain ceramic slurry, and carrying out hot pressing injection to obtain the silicon-based ceramic core with controllable room temperature-high temperature strength. The preparation method comprises the following steps: preparing a ceramic core blank, sequentially carrying out degumming and sintering to obtain a silicon-based ceramic core, soaking the silicon-based ceramic core in a high-temperature impregnant, and drying to obtain the silicon-based ceramic core with controllable room temperature-high temperature strength. The performance stability of the silicon-based ceramic core can be improved, and the casting success rate is increased.
本发明提供了一种具有可控室温‑高温强度的硅基陶瓷型芯的制备方法，该方法为：将石英基体和矿化改性剂混合，得到硅基复合材料，与低温浸渍剂混合、球磨、干燥、过筛后，得到改性硅基粉体，再与增塑剂混合，得到陶瓷浆料，经热压注，得到陶瓷型芯坯体，依次进行排胶、烧结后，得到硅基陶瓷型芯，在高温浸渍剂中浸泡后干燥，得到具有可控室温‑高温强度的硅基陶瓷型芯。本发明能够提高硅基陶瓷型芯的性能稳定性，提高铸造成功率。
Preparation method of silicon-based ceramic core with controllable room temperature-high temperature strength
一种具有可控室温-高温强度的硅基陶瓷型芯的制备方法
XU XIQING (Autor:in) / YANG YONGKANG (Autor:in) / WANG ANRUI (Autor:in) / KONG ZHIPENG (Autor:in) / GUO YAJIE (Autor:in) / SUN GUODONG (Autor:in)
24.01.2025
Patent
Elektronische Ressource
Chinesisch
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