Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Superalloy directional solidification core and preparation method thereof
The invention relates to a superalloy directional solidification core and a preparation method thereof, and belongs to the technical field of ceramic core manufacturing. The preparation method of the superalloy directional solidification mold core comprises the following steps: S1, preparing dry powder: uniformly mixing 0.5-2% by mass of active powder and the balance of matrix powder, and drying after mixing and stirring to obtain the dry powder; s2, wet powder preparation: heating and melting a plasticizer accounting for 19-25% of the mass fraction of the dry powder in the step S1, adding the dry powder obtained in the step S1 after melting, and mixing and stirring at a constant temperature to obtain wet powder; and S3, pressing the superalloy directional solidification core: carrying out pressure injection on the wet powder obtained in the step S2 to obtain a wet core, trimming and correcting the wet core, putting the wet core into a sintering bowl filled with a filler, sintering, carrying out heat preservation for 3-8 hours after sintering, and cooling to room temperature to obtain the superalloy directional solidification core. The method has the beneficial effects that the method has the advantages of high room-temperature strength, high high-temperature strength and good high-temperature creep resistance, and the yield and the use performance of the superalloy directional solidification mold core can be effectively improved.
本发明涉及一种超合金定向凝固型芯及其制备方法，属于陶瓷型芯制造技术领域。所述超合金定向凝固型芯的制备方法的成分包括以下步骤：S1、干粉制备：将质量分数0.5％‑2％的活性粉料，其余为基体粉料均匀混合，混合搅拌后干燥，得到干粉；S2、湿粉制备：将步骤S1干粉的质量分数19％‑25％的增塑剂升温熔化，熔化后加入步骤S1得到的干粉，恒温下混合搅拌后，得到湿粉；S3、压制超合金定向凝固型芯：将步骤S2得到的湿粉压注，得到湿芯，将湿芯修整、校型后，放入装有填料的烧钵中，烧结，烧结后保温3‑8h，冷却至室温得到超合金定向凝固型芯。有益效果：具有室温强度高、高温强度高、高温抗蠕变性好的优势，能够有效提升超合金定向凝固型芯的成品率和使用性能。
Superalloy directional solidification core and preparation method thereof
The invention relates to a superalloy directional solidification core and a preparation method thereof, and belongs to the technical field of ceramic core manufacturing. The preparation method of the superalloy directional solidification mold core comprises the following steps: S1, preparing dry powder: uniformly mixing 0.5-2% by mass of active powder and the balance of matrix powder, and drying after mixing and stirring to obtain the dry powder; s2, wet powder preparation: heating and melting a plasticizer accounting for 19-25% of the mass fraction of the dry powder in the step S1, adding the dry powder obtained in the step S1 after melting, and mixing and stirring at a constant temperature to obtain wet powder; and S3, pressing the superalloy directional solidification core: carrying out pressure injection on the wet powder obtained in the step S2 to obtain a wet core, trimming and correcting the wet core, putting the wet core into a sintering bowl filled with a filler, sintering, carrying out heat preservation for 3-8 hours after sintering, and cooling to room temperature to obtain the superalloy directional solidification core. The method has the beneficial effects that the method has the advantages of high room-temperature strength, high high-temperature strength and good high-temperature creep resistance, and the yield and the use performance of the superalloy directional solidification mold core can be effectively improved.
本发明涉及一种超合金定向凝固型芯及其制备方法，属于陶瓷型芯制造技术领域。所述超合金定向凝固型芯的制备方法的成分包括以下步骤：S1、干粉制备：将质量分数0.5％‑2％的活性粉料，其余为基体粉料均匀混合，混合搅拌后干燥，得到干粉；S2、湿粉制备：将步骤S1干粉的质量分数19％‑25％的增塑剂升温熔化，熔化后加入步骤S1得到的干粉，恒温下混合搅拌后，得到湿粉；S3、压制超合金定向凝固型芯：将步骤S2得到的湿粉压注，得到湿芯，将湿芯修整、校型后，放入装有填料的烧钵中，烧结，烧结后保温3‑8h，冷却至室温得到超合金定向凝固型芯。有益效果：具有室温强度高、高温强度高、高温抗蠕变性好的优势，能够有效提升超合金定向凝固型芯的成品率和使用性能。
Superalloy directional solidification core and preparation method thereof
一种超合金定向凝固型芯及其制备方法
LIU JUNPENG (Autor:in) / KANG SEO-JIN (Autor:in) / HU QI (Autor:in) / LI YAFANG (Autor:in) / JIA JINGHUI (Autor:in) / LONG ZHIXIN (Autor:in) / ZHANG JIATIAN (Autor:in) / FU QIUWEI (Autor:in) / ZHU XUNZHUANG (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
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