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Silicon-based ceramic core high-temperature reinforcer as well as preparation method and application thereof
The invention relates to a silicon-based ceramic core high-temperature reinforcer which is prepared by mixing ethyl silicate, absolute ethyl alcohol, hydrochloric acid and distilled water according to the volume ratio of (40-50): (8-15): 1: (5-12), and the silicon-based ceramic core high-temperature reinforcer is high in stability, cannot be cured after being placed for a long time and can be repeatedly used. The silicon-based ceramic core reinforced by the high-temperature reinforcer has excellent high-temperature performance, the high-temperature bending strength at 1550 DEG C can still reach more than 30 MPa, the high-temperature deflection at 1550 DEG C is lower than 0.8 mm, and the core-spun rate in a high-temperature casting link reaches more than 95%.
本发明涉及一种硅基陶瓷型芯高温强化剂，由硅酸乙酯：无水乙醇：盐酸：蒸馏水按照体积比(40～50)：(8～15)：1：(5～12)混合配制而成，该硅基陶瓷型芯高温强化剂稳定性高，长时放置不会固化，能重复多次使用。由该高温强化剂强化得到的硅基陶瓷型芯具有优异的高温性能，1550℃下的高温抗弯强度依然可达30MPa以上，1550℃下的高温挠度低于0.8mm，并且在高温浇铸环节的包芯率达95％以上。
Silicon-based ceramic core high-temperature reinforcer as well as preparation method and application thereof
The invention relates to a silicon-based ceramic core high-temperature reinforcer which is prepared by mixing ethyl silicate, absolute ethyl alcohol, hydrochloric acid and distilled water according to the volume ratio of (40-50): (8-15): 1: (5-12), and the silicon-based ceramic core high-temperature reinforcer is high in stability, cannot be cured after being placed for a long time and can be repeatedly used. The silicon-based ceramic core reinforced by the high-temperature reinforcer has excellent high-temperature performance, the high-temperature bending strength at 1550 DEG C can still reach more than 30 MPa, the high-temperature deflection at 1550 DEG C is lower than 0.8 mm, and the core-spun rate in a high-temperature casting link reaches more than 95%.
本发明涉及一种硅基陶瓷型芯高温强化剂，由硅酸乙酯：无水乙醇：盐酸：蒸馏水按照体积比(40～50)：(8～15)：1：(5～12)混合配制而成，该硅基陶瓷型芯高温强化剂稳定性高，长时放置不会固化，能重复多次使用。由该高温强化剂强化得到的硅基陶瓷型芯具有优异的高温性能，1550℃下的高温抗弯强度依然可达30MPa以上，1550℃下的高温挠度低于0.8mm，并且在高温浇铸环节的包芯率达95％以上。
Silicon-based ceramic core high-temperature reinforcer as well as preparation method and application thereof
一种硅基陶瓷型芯高温强化剂及其制备方法和应用
GE ZHICHENG (author)
2023-11-14
Patent
Electronic Resource
Chinese
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