Method for preparing silicon-based ceramic core by adopting quartz glass rod

• Main Authors: LI CHAO, SHI CHANGKUN, DU YINGLIU, FENG SHIGE, YE FENG
• Format: Patent
• Language: Chinese; English
• Published: 13.09.2022
• Subjects: PERFORMING OPERATIONS; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE

The invention discloses a method for preparing a silicon-based ceramic core by adopting a quartz glass rod. The method comprises the following steps: preparing ceramic core slurry; arranging a placing groove for limiting and placing the quartz glass rod in the ceramic core mold according to the inserting position of the quartz glass rod in the silicon-based ceramic core; after the quartz glass rod is placed in the placing groove of the ceramic core mold, the slurry is pressed and injected through a core pressing machine to form a ceramic core biscuit; opening the pressed ceramic core mold; putting the ceramic core biscuit into a bowl and shaping; the saggar containing the ceramic core biscuit is put into a roasting furnace to be sintered, furnace cooling is conducted after sintering is completed, and the ceramic core is taken out of the furnace; the quartz glass rod is added into the silicon-based ceramic core, so that the sintering qualification rate of the ceramic core is improved, and the defects of core l