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Preparation method of ceramic runner pipe for casting
The invention belongs to the technical field of refractory materials and mainly provides a preparation method of a ceramic runner pipe for casting. The ceramic runner pipe is prepared by using the following raw materials in percentage by weight: 40 to 55 percent of clay, 40 to 50 percent of alumina and 5 to 15 percent of silica; the preparation method of the ceramic runner pipe comprises the steps of weighing the raw materials according to the proportions, additionally adding water with an amount accounting for 15 percent of the amount of the raw materials, performing mixing, performing extrusion molding, performing dry sintering at temperature of 1250 to 1300 DEG C, and preserving heat for 4 to 6 hours at the highest sintering temperature. The preparation method of the ceramic runner pipe for casting has the advantages that the shrinkage of the ceramic runner pipe during use is small, the reheating linear change at 1400 DEG C is reduced from the original negative 1.5 percent to within negative 0.5 percent, and the performance of the product is improved.
Preparation method of ceramic runner pipe for casting
The invention belongs to the technical field of refractory materials and mainly provides a preparation method of a ceramic runner pipe for casting. The ceramic runner pipe is prepared by using the following raw materials in percentage by weight: 40 to 55 percent of clay, 40 to 50 percent of alumina and 5 to 15 percent of silica; the preparation method of the ceramic runner pipe comprises the steps of weighing the raw materials according to the proportions, additionally adding water with an amount accounting for 15 percent of the amount of the raw materials, performing mixing, performing extrusion molding, performing dry sintering at temperature of 1250 to 1300 DEG C, and preserving heat for 4 to 6 hours at the highest sintering temperature. The preparation method of the ceramic runner pipe for casting has the advantages that the shrinkage of the ceramic runner pipe during use is small, the reheating linear change at 1400 DEG C is reduced from the original negative 1.5 percent to within negative 0.5 percent, and the performance of the product is improved.
Preparation method of ceramic runner pipe for casting
YANG WEN GANG (author) / LI HONGXIA (author) / LIU GUOQI (author) / QIAN FAN (author) / YU JIANBIN (author) / MA TIANFEI (author) / MA WEIKUI (author)
2015-10-07
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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