A kind of silicon-based ceramic core and preparation method thereof

A ceramic core and silicon-based technology, applied in the field of silicon-based ceramic core and its preparation, can solve the problems of insufficient high-temperature strength and large high-temperature deflection of silicon-based ceramic cores
CN106747369BActive Publication Date: 2019-12-20成都航大新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
成都航大新材料有限公司
Publication Date
2019-12-20

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Abstract

The invention provides a silica-based ceramic mold core and a preparation method thereof. The silica-based ceramic mold core and the preparation method are used for solving the problems of insufficient high-temperature intensity, great high-temperature deflection and the like of the silica-based ceramic mold core in the prior art. The invention provides the silica-based ceramic mold core with high high-temperature intensity, low high-temperature deformation and low sintering shrinkage, and the preparation method.
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Description

technical field

[0001] The invention relates to the technical field of precision casting, in particular to a silicon-based ceramic core and a preparation method thereof. Background technique

[0002] The turbofan engine is currently the most mainstream engine. The turbine inlet temperature of an engine with a thrust-to-weight ratio of 10 to 10 reaches 1800K-2000K, while that of an engine with a thrust-to-weight ratio of 15 to 20 will reach 2100K to 2300K, far exceeding the melting point of superalloys for engines. As the temperature of the front inlet of the turbine continues to increase, in order to ensure the safe and reliable operation of the turbine blades in the high-temperature gas environment, advanced cooling structures and cooling methods must be adopted to reduce the temperature of the blades to below the working temperature that the material can withstand . Under the condition that the structural size of the engine remains unchanged at all, the thrust of the eng...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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