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Preparation of high-porosity ceramic core and water-blast core leach method of high-porosity ceramic core
The invention discloses preparation of a high-porosity ceramic core and a water-blast core leach method of the high-porosity ceramic core, and mainly aims at solving the technical problem that an existing ceramic core is difficult in core leach and high in cost. The preparation of the ceramic core comprises the following steps: preparation of the ceramic core: sieving magnesium oxide, sodium aluminate and calcium carbonate, taking the undersized material, and mixing according to the weight percent; completely fusing a plasticizer, stirring, pouring out, and cooling to prepare a charge bar; roasting a green body at 1180 DEG C for 3 hours; and preparing the ceramic core and preparing a waterproof coating. The water-blast core leach method comprises the following steps: casting a casting and cooling to 150-300 DEG C; putting the casting with the ceramic core into water in a room-temperature state, instantly scattering the main body part of the ceramic core; and blasting and removing, wherein the residual ceramic core can be thoroughly removed in a hydroblasting manner. According to the preparation and the high-porosity ceramic core and the water-blast core leach method, the core leach difficulty and time can be greatly reduced; and the use cost of the ceramic core can be significantly reduced, so that the application range of the ceramic core is expanded.
Preparation of high-porosity ceramic core and water-blast core leach method of high-porosity ceramic core
The invention discloses preparation of a high-porosity ceramic core and a water-blast core leach method of the high-porosity ceramic core, and mainly aims at solving the technical problem that an existing ceramic core is difficult in core leach and high in cost. The preparation of the ceramic core comprises the following steps: preparation of the ceramic core: sieving magnesium oxide, sodium aluminate and calcium carbonate, taking the undersized material, and mixing according to the weight percent; completely fusing a plasticizer, stirring, pouring out, and cooling to prepare a charge bar; roasting a green body at 1180 DEG C for 3 hours; and preparing the ceramic core and preparing a waterproof coating. The water-blast core leach method comprises the following steps: casting a casting and cooling to 150-300 DEG C; putting the casting with the ceramic core into water in a room-temperature state, instantly scattering the main body part of the ceramic core; and blasting and removing, wherein the residual ceramic core can be thoroughly removed in a hydroblasting manner. According to the preparation and the high-porosity ceramic core and the water-blast core leach method, the core leach difficulty and time can be greatly reduced; and the use cost of the ceramic core can be significantly reduced, so that the application range of the ceramic core is expanded.
Preparation of high-porosity ceramic core and water-blast core leach method of high-porosity ceramic core
CHENG TAO (author) / LI JIANHUA (author) / ZHANG LIJIAN (author) / HAN WEI (author)
2015-06-10
Patent
Electronic Resource
English
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